Fix compilation on impish

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3136

Python 3.9 remove the array.array.tostring and
array.array.fromstring() function. This patch
is to use other method to replace tostring() and
fromstring()

Signed-off-by: Bob Feng <bob.c.feng@intel.com>

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Mingyue Liang <mingyuex.liang@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

BaseTools/Source/C/BrotliCompress/dec/decode.c

@@ -1942,8 +1942,8 @@ static uint32_t BrotliMaxDistanceSymbol(uint32_t ndirect, uint32_t npostfix) {
 }
 
 BrotliDecoderResult BrotliDecoderDecompress(
-    size_t encoded_size, const uint8_t* encoded_buffer, size_t* decoded_size,
+    size_t encoded_size, const uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(encoded_size)], size_t* decoded_size,
-    uint8_t* decoded_buffer) {
+    uint8_t decoded_buffer[BROTLI_ARRAY_PARAM(*decoded_size)]) {
   BrotliDecoderState s;
   BrotliDecoderResult result;
   size_t total_out = 0;

BaseTools/Source/C/BrotliCompress/enc/encode.c

@@ -1432,8 +1432,8 @@ static size_t MakeUncompressedStream(
 
 BROTLI_BOOL BrotliEncoderCompress(
     int quality, int lgwin, BrotliEncoderMode mode, size_t input_size,
-    const uint8_t* input_buffer, size_t* encoded_size,
+    const uint8_t input_buffer[BROTLI_ARRAY_PARAM(input_size)], size_t* encoded_size,
-    uint8_t* encoded_buffer) {
+    uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(*encoded_size)]) {
   BrotliEncoderState* s;
   size_t out_size = *encoded_size;
   const uint8_t* input_start = input_buffer;

BaseTools/Source/Python/AutoGen/UniClassObject.py

@@ -152,7 +152,7 @@ class Ucs2Codec(codecs.Codec):
 
 TheUcs2Codec = Ucs2Codec()
 def Ucs2Search(name):
-    if name == 'ucs-2':
+    if name in ['ucs-2', 'ucs_2']:
         return codecs.CodecInfo(
             name=name,
             encode=TheUcs2Codec.encode,

BaseTools/Source/Python/Common/Misc.py

@@ -1635,7 +1635,7 @@ class PeImageClass():
         ByteArray = array.array('B')
         ByteArray.fromfile(PeObject, 4)
         # PE signature should be 'PE\0\0'
-        if ByteArray.tostring() != b'PE\0\0':
+        if ByteArray.tolist() != [ord('P'), ord('E'), 0, 0]:
             self.ErrorInfo = self.FileName + ' has no valid PE signature PE00'
             return
 

BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py

@@ -27,10 +27,11 @@ from Common.TargetTxtClassObject import TargetTxtDict
 from Common.ToolDefClassObject import ToolDefDict
 from AutoGen.BuildEngine import ToolBuildRule
 import Common.DataType as DataType
-from Common.Misc import PathClass
+from Common.Misc import PathClass,CreateDirectory
 from Common.LongFilePathSupport import OpenLongFilePath as open
 from Common.MultipleWorkspace import MultipleWorkspace as mws
 import Common.GlobalData as GlobalData
+from Common.BuildToolError import *
 
 ## Global variables
 #
@@ -463,12 +464,28 @@ class GenFdsGlobalVariable:
                     GenFdsGlobalVariable.SecCmdList.append(' '.join(Cmd).strip())
             else:
                 SectionData = array('B', [0, 0, 0, 0])
-                SectionData.fromstring(Ui.encode("utf_16_le"))
+                SectionData.fromlist(array('B',Ui.encode('utf-16-le')).tolist())
                 SectionData.append(0)
                 SectionData.append(0)
                 Len = len(SectionData)
                 GenFdsGlobalVariable.SectionHeader.pack_into(SectionData, 0, Len & 0xff, (Len >> 8) & 0xff, (Len >> 16) & 0xff, 0x15)
-                SaveFileOnChange(Output, SectionData.tostring())
+
+
+                DirName = os.path.dirname(Output)
+                if not CreateDirectory(DirName):
+                    EdkLogger.error(None, FILE_CREATE_FAILURE, "Could not create directory %s" % DirName)
+                else:
+                    if DirName == '':
+                        DirName = os.getcwd()
+                    if not os.access(DirName, os.W_OK):
+                        EdkLogger.error(None, PERMISSION_FAILURE, "Do not have write permission on directory %s" % DirName)
+
+                try:
+                    with open(Output, "wb") as Fd:
+                        SectionData.tofile(Fd)
+                        Fd.flush()
+                except IOError as X:
+                    EdkLogger.error(None, FILE_CREATE_FAILURE, ExtraData='IOError %s' % X)
 
         elif Ver:
             Cmd += ("-n", Ver)

FSDrivers/ext4.inf

@@ -0,0 +1,22 @@
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ext4
+  FILE_GUID                      = 9d380387-a15a-4053-ae19-ff3495b6d0d5
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC
+#
+
+VALID_ARCHITECTURES           = X64
+
+[Binaries.X64]
+  PE32|X64/ext4.efi|*
+

FSDrivers/ntfs.inf

@@ -0,0 +1,22 @@
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ntfs
+  FILE_GUID                      = 2282efd0-678b-4753-8d06-200d5940285d
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC
+#
+
+VALID_ARCHITECTURES           = X64
+
+[Binaries.X64]
+  PE32|X64/ntfs.efi|*
+

MdeModulePkg/Application/UiApp/FrontPage.c

@@ -7,6 +7,14 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
 
+#include <IndustryStandard/Pci.h>
+#include <Protocol/PciIo.h>
+#include <Protocol/PciRootBridgeIo.h>
+#include <Protocol/UsbIo.h>
+#include <Register/Amd/Cpuid.h>
+#include <Register/Intel/Cpuid.h>
+#include <Register/Intel/Msr.h>
+
 #include "FrontPage.h"
 #include "FrontPageCustomizedUi.h"
 
@@ -17,7 +25,6 @@ EFI_GUID   mFrontPageGuid      = FRONT_PAGE_FORMSET_GUID;
 BOOLEAN   mResetRequired  = FALSE;
 
 EFI_FORM_BROWSER2_PROTOCOL      *gFormBrowser2;
-CHAR8     *mLanguageString;
 BOOLEAN   mModeInitialized = FALSE;
 //
 // Boot video resolution and text mode.
@@ -34,11 +41,12 @@ UINT32    mSetupTextModeRow            = 0;
 UINT32    mSetupHorizontalResolution   = 0;
 UINT32    mSetupVerticalResolution     = 0;
 
+EFI_SYSTEM_TABLE * gSystemTable = NULL;
+
 FRONT_PAGE_CALLBACK_DATA  gFrontPagePrivate = {
   FRONT_PAGE_CALLBACK_DATA_SIGNATURE,
   NULL,
   NULL,
-  NULL,
   {
     FakeExtractConfig,
     FakeRouteConfig,
@@ -72,11 +80,11 @@ HII_VENDOR_DEVICE_PATH  mFrontPageHiiVendorDevicePath = {
 };
 
 /**
-  Update the banner information for the Front Page based on Smbios information.
+  Update the information for the Front Page based on Smbios information.
 
 **/
 VOID
-UpdateFrontPageBannerStrings (
+UpdateFrontPageStrings (
   VOID
   );
 
@@ -211,7 +219,7 @@ UpdateFrontPageForm (
   //
   StartGuidLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
   StartGuidLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
-  StartGuidLabel->Number       = LABEL_FRANTPAGE_INFORMATION;
+  StartGuidLabel->Number       = LABEL_FRONTPAGE_INFORMATION;
   //
   // Create Hii Extend Label OpCode as the end opcode
   //
@@ -288,9 +296,9 @@ InitializeFrontPage (
   ASSERT (gFrontPagePrivate.HiiHandle != NULL);
 
   //
-  //Updata Front Page banner strings
+  //Updata Front Page strings
   //
-  UpdateFrontPageBannerStrings ();
+  UpdateFrontPageStrings ();
 
   //
   // Update front page menus.
@@ -367,10 +375,6 @@ FreeFrontPage(
   // Publish our HII data
   //
   HiiRemovePackages (gFrontPagePrivate.HiiHandle);
-  if (gFrontPagePrivate.LanguageToken != NULL) {
-    FreePool (gFrontPagePrivate.LanguageToken);
-    gFrontPagePrivate.LanguageToken = NULL;
-  }
 }
 
 /**
@@ -493,164 +497,536 @@ GetOptionalStringByIndex (
 }
 
 
+UINT16 SmbiosTableLength (SMBIOS_STRUCTURE_POINTER SmbiosTableN)
+{
+  CHAR8  *AChar;
+  UINT16  Length;
+
+  AChar = (CHAR8 *)(SmbiosTableN.Raw + SmbiosTableN.Hdr->Length);
+  while ((*AChar != 0) || (*(AChar + 1) != 0)) {
+    AChar ++; //stop at 00 - first 0
+  }
+  Length = (UINT16)((UINTN)AChar - (UINTN)SmbiosTableN.Raw + 2); //length includes 00
+  return Length;
+}
+
+SMBIOS_STRUCTURE_POINTER GetSmbiosTableFromType (
+  SMBIOS_TABLE_ENTRY_POINT *SmbiosPoint, UINT8 SmbiosType, UINTN IndexTable)
+{
+  SMBIOS_STRUCTURE_POINTER SmbiosTableN;
+  UINTN                    SmbiosTypeIndex;
+
+  SmbiosTypeIndex = 0;
+  SmbiosTableN.Raw = (UINT8 *)((UINTN)SmbiosPoint->TableAddress);
+  if (SmbiosTableN.Raw == NULL) {
+    return SmbiosTableN;
+  }
+  while ((SmbiosTypeIndex != IndexTable) || (SmbiosTableN.Hdr->Type != SmbiosType)) {
+    if (SmbiosTableN.Hdr->Type == SMBIOS_TYPE_END_OF_TABLE) {
+      SmbiosTableN.Raw = NULL;
+      return SmbiosTableN;
+    }
+    if (SmbiosTableN.Hdr->Type == SmbiosType) {
+      SmbiosTypeIndex++;
+    }
+    SmbiosTableN.Raw = (UINT8 *)(SmbiosTableN.Raw + SmbiosTableLength (SmbiosTableN));
+  }
+  return SmbiosTableN;
+}
+
+STATIC
+VOID
+WarnNoBootableMedia (
+  VOID
+  )
+{
+  CHAR16                        *String;
+  EFI_STRING_ID                 Token;
+  EFI_BOOT_MANAGER_LOAD_OPTION  *BootOption;
+  UINTN                         BootOptionCount;
+  UINTN                         Index;
+  UINTN                         Count = 0;
+
+  String = AllocateZeroPool (0x60);
+  BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);
+
+  for (Index = 0; Index < BootOptionCount; Index++) {
+    //
+    // Don't count the hidden/inactive boot option
+    //
+    if (((BootOption[Index].Attributes & LOAD_OPTION_HIDDEN) != 0) || ((BootOption[Index].Attributes & LOAD_OPTION_ACTIVE) == 0)) {
+      continue;
+    }
+
+    Count++;
+  }
+
+  EfiBootManagerFreeLoadOptions (BootOption, BootOptionCount);
+
+  if (Count == 0) {
+    StrCatS (String, 0x60 / sizeof (CHAR16), L"Warning: No bootable media found");
+  } else {
+    StrCatS (String, 0x60 / sizeof (CHAR16), L"");
+  }
+
+  Token = STRING_TOKEN (STR_NO_BOOTABLE_MEDIA);
+  HiiSetString (gFrontPagePrivate.HiiHandle, Token, String, NULL);
+  FreePool(String);
+}
+
+BOOLEAN
+StandardSignatureIsAuthenticAMD (
+  VOID
+  )
+{
+  UINT32  RegEbx;
+  UINT32  RegEcx;
+  UINT32  RegEdx;
+
+  AsmCpuid (CPUID_SIGNATURE, NULL, &RegEbx, &RegEcx, &RegEdx);
+  return (RegEbx == CPUID_SIGNATURE_AUTHENTIC_AMD_EBX &&
+          RegEcx == CPUID_SIGNATURE_AUTHENTIC_AMD_ECX &&
+          RegEdx == CPUID_SIGNATURE_AUTHENTIC_AMD_EDX);
+}
+
+BOOLEAN
+StandardSignatureIsGenuineIntel (
+  VOID
+  )
+{
+  UINT32  RegEbx;
+  UINT32  RegEcx;
+  UINT32  RegEdx;
+
+  AsmCpuid (CPUID_SIGNATURE, NULL, &RegEbx, &RegEcx, &RegEdx);
+  return (RegEbx == CPUID_SIGNATURE_GENUINE_INTEL_EBX &&
+          RegEcx == CPUID_SIGNATURE_GENUINE_INTEL_ECX &&
+          RegEdx == CPUID_SIGNATURE_GENUINE_INTEL_EDX);
+}
+
+typedef struct {
+  CHAR8     Signature[8];
+  UINT8     Checksum;
+  CHAR8     OemId[6];
+  UINT8     Revision;
+  UINT32    RsdtAddress;
+} ACPI_RSDP;
+
+CHAR8 RSDP_SIGNATURE[8] = {'R', 'S', 'D', ' ', 'P', 'T', 'R', ' '};
+
+typedef struct {
+  CHAR8     Signature[4];
+  UINT32    Length;
+  UINT8     Revision;
+  UINT8     Checksum;
+  CHAR8     OemId[6];
+  CHAR8     OemTableId[8];
+  UINT32    OemRevision;
+  UINT32    CreatorId;
+  UINT32    CreatorRevision;
+} ACPI_SDT_HEADER;
+
+CHAR8 RSDT_SIGNATURE[4] = {'R', 'S', 'D', 'T'};
+
+STATIC ACPI_SDT_HEADER* FindAcpiTable(CHAR8 Name[4]) {
+  UINTN                    Index;
+  EFI_CONFIGURATION_TABLE* ConfigurationTable;
+  UINTN                    RsdpPtr;
+  ACPI_RSDP*               Rsdp;
+  UINTN                    RsdtPtr;
+  ACPI_SDT_HEADER*         Rsdt;
+  UINTN                    TablePtr;
+  ACPI_SDT_HEADER*         Table;
+
+  DEBUG ((EFI_D_INFO, "FindAcpiTable: '%c%c%c%c'\n",
+    Name[0],
+    Name[1],
+    Name[2],
+    Name[3]
+  ));
+
+  if (gSystemTable == NULL) {
+      DEBUG ((EFI_D_INFO, "  System Table missing\n"));
+      return NULL;
+  }
+
+  // Search the table for an entry that matches the ACPI Table Guid
+  for (Index = 0; Index < gSystemTable->NumberOfTableEntries; Index++) {
+    if (CompareGuid (&gEfiAcpiTableGuid, &(gSystemTable->ConfigurationTable[Index].VendorGuid))) {
+      ConfigurationTable = &gSystemTable->ConfigurationTable[Index];
+      break;
+    }
+  }
+
+  if (ConfigurationTable == NULL) {
+      DEBUG ((EFI_D_INFO, "  ACPI Configuration Table missing\n"));
+      return NULL;
+  }
+
+  RsdpPtr = (UINTN)ConfigurationTable->VendorTable;
+  DEBUG ((EFI_D_INFO, "  RSDP 0x%x\n", RsdpPtr));
+  Rsdp = (ACPI_RSDP*)RsdpPtr;
+  DEBUG ((EFI_D_INFO, "    Signature: '%c%c%c%c%c%c%c%c'\n",
+    Rsdp->Signature[0],
+    Rsdp->Signature[1],
+    Rsdp->Signature[2],
+    Rsdp->Signature[3],
+    Rsdp->Signature[4],
+    Rsdp->Signature[5],
+    Rsdp->Signature[6],
+    Rsdp->Signature[7]
+  ));
+  if (CompareMem(Rsdp->Signature, RSDP_SIGNATURE, 8) != 0) {
+      DEBUG ((EFI_D_INFO, "    RSDP invalid signature\n"));
+      return NULL;
+  }
+  DEBUG ((EFI_D_INFO, "    Revision: 0x%x\n", Rsdp->Revision));
+
+  RsdtPtr = (UINTN)Rsdp->RsdtAddress;
+  DEBUG ((EFI_D_INFO, "  RSDT 0x%x\n", RsdpPtr));
+  Rsdt = (ACPI_SDT_HEADER*)RsdtPtr;
+  DEBUG ((EFI_D_INFO, "    Signature: '%c%c%c%c'\n",
+    Rsdt->Signature[0],
+    Rsdt->Signature[1],
+    Rsdt->Signature[2],
+    Rsdt->Signature[3]
+  ));
+  if (CompareMem(Rsdt->Signature, RSDT_SIGNATURE, 4) != 0) {
+      DEBUG ((EFI_D_INFO, "    RSDT invalid signature\n"));
+      return NULL;
+  }
+  DEBUG ((EFI_D_INFO, "    Revision: 0x%x\n", Rsdt->Revision));
+  DEBUG ((EFI_D_INFO, "    Length: 0x%x\n", Rsdt->Length));
+
+  for (Index = sizeof(ACPI_SDT_HEADER); Index < Rsdt->Length; Index += 4) {
+      TablePtr = (UINTN)(*(UINT32*)(RsdtPtr + Index));
+      DEBUG ((EFI_D_INFO, "  Table %d: 0x%x\n", Index, TablePtr));
+      Table = (ACPI_SDT_HEADER*)TablePtr;
+      DEBUG ((EFI_D_INFO, "    Signature: '%c%c%c%c'\n",
+        Table->Signature[0],
+        Table->Signature[1],
+        Table->Signature[2],
+        Table->Signature[3]
+      ));
+      DEBUG ((EFI_D_INFO, "    Revision: 0x%x\n", Table->Revision));
+      DEBUG ((EFI_D_INFO, "    Length: 0x%x\n", Table->Length));
+
+      if (CompareMem(Table->Signature, Name, 4) == 0) {
+          DEBUG ((EFI_D_INFO, "  Match found\n"));
+          return Table;
+      }
+  }
+
+  DEBUG ((EFI_D_INFO, "  No match found\n"));
+  return NULL;
+}
+
+// From PciBusDxe
+STATIC
+EFI_STATUS
+PciDevicePresent(
+    OUT PCI_TYPE00  *Pci,
+    IN  UINT8       Bus,
+    IN  UINT8       Device,
+    IN  UINT8       Func
+    )
+{
+    UINT64 Address = EFI_PCI_ADDRESS(Bus, Device, Func, 0);
+    EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+    EFI_STATUS Status;
+    EFI_HANDLE *PciIoBuffer;
+    UINTN PciIoHandleCount = 0;
+
+    Status = gBS->LocateHandleBuffer(
+        ByProtocol,
+        &gEfiPciRootBridgeIoProtocolGuid,
+        NULL,
+        &PciIoHandleCount,
+        &PciIoBuffer
+    );
+
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_INFO, "%a: Failed to get PciRootBridgeIo handles: %r\n", __FUNCTION__, Status));
+        return Status;
+    }
+
+    for (UINTN Index = 0; Index < PciIoHandleCount; Index++) {
+        Status = gBS->OpenProtocol(
+            PciIoBuffer[Index],
+            &gEfiPciRootBridgeIoProtocolGuid,
+            (VOID *)&PciRootBridgeIo,
+            NULL,
+            NULL,
+            EFI_OPEN_PROTOCOL_GET_PROTOCOL
+        );
+
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_INFO, "%a: Failed to open PciRootBridgeIo protocol: %r\n", __FUNCTION__, Status));
+            continue;
+        }
+
+        // Read the Vendor ID register
+        Status = PciRootBridgeIo->Pci.Read(
+            PciRootBridgeIo,
+            EfiPciWidthUint32,
+            Address,
+            1,
+            Pci
+        );
+
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_INFO, "%a: Failed to read vendor ID: %r\n", __FUNCTION__, Status));
+            continue;
+        }
+
+        // Read the entire config header for the device
+        Status = PciRootBridgeIo->Pci.Read(
+            PciRootBridgeIo,
+            EfiPciWidthUint32,
+            Address,
+            sizeof(PCI_TYPE00) / sizeof(UINT32),
+            Pci
+        );
+
+        FreePool(PciIoBuffer);
+        return Status;
+    }
+
+    FreePool(PciIoBuffer);
+    return EFI_NOT_FOUND;
+}
+
+/*
+ * Check for Intel device with class [0780] at 00:16.0.
+ */
+STATIC
+BOOLEAN
+HasCsmeDevice(VOID)
+{
+    PCI_TYPE00 Pci;
+
+    if (!EFI_ERROR(PciDevicePresent(&Pci, 0x00, 0x16, 0x00))) {
+        DEBUG((EFI_D_INFO, "%a: vid=0x%04X, class=[%02X,%02X,%02X]\n", __FUNCTION__,
+            Pci.Hdr.VendorId, Pci.Hdr.ClassCode[0], Pci.Hdr.ClassCode[1], Pci.Hdr.ClassCode[2]));
+        return Pci.Hdr.VendorId == 0x8086 &&
+            Pci.Hdr.ClassCode[2] == PCI_CLASS_SCC &&
+            Pci.Hdr.ClassCode[1] == PCI_SUBCLASS_SCC_OTHER;
+    }
+
+    return FALSE;
+}
+
+STATIC VOID FirmwareConfigurationInformation(VOID) {
+    EFI_STRING_ID Token;
+
+    Token = STRING_TOKEN (STR_VIRTUALIZATION);
+    if (StandardSignatureIsGenuineIntel()) {
+        HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"Intel Virtualization", NULL);
+
+        Token = STRING_TOKEN (STR_VIRTUALIZATION_STATUS);
+        CPUID_VERSION_INFO_ECX VersionInfoEcx;
+        AsmCpuid (CPUID_VERSION_INFO, NULL, NULL, &VersionInfoEcx.Uint32, NULL);
+        if (VersionInfoEcx.Bits.VMX) {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"VT-x: Active", NULL);
+        } else {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"VT-x: Deactivated", NULL);
+        }
+
+        Token = STRING_TOKEN (STR_IOMMU_STATUS);
+        CHAR8 TableName[4] = {'D', 'M', 'A', 'R'};
+        if (FindAcpiTable(TableName)) {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"VT-d: Active", NULL);
+        } else {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"VT-d: Deactivated", NULL);
+        }
+
+        Token = STRING_TOKEN(STR_ME_STATUS);
+        if (HasCsmeDevice()) {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"The Intel Management Engine is enabled.", NULL);
+        } else {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"The Intel Management Engine is disabled at runtime to increase security.", NULL);
+        }
+    } else if (StandardSignatureIsAuthenticAMD()) {
+        //TODO: verify AMD tests
+
+        HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"AMD Virtualization", NULL);
+
+        Token = STRING_TOKEN (STR_VIRTUALIZATION_STATUS);
+        CPUID_AMD_EXTENDED_CPU_SIG_ECX AmdExtendedCpuSigEcx;
+        AsmCpuid (CPUID_EXTENDED_CPU_SIG, NULL, NULL, &AmdExtendedCpuSigEcx.Uint32, NULL);
+        if (AmdExtendedCpuSigEcx.Bits.SVM) {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"AMD-V: Active", NULL);
+        } else {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"AMD-V: Deactivated", NULL);
+        }
+
+        Token = STRING_TOKEN (STR_IOMMU_STATUS);
+        //TODO: proper test for AMD IOMMU
+        BOOLEAN iommu_active = FALSE;
+        if (iommu_active) {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"AMD-Vi: Active", NULL);
+        } else {
+            HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"AMD-Vi: Deactivated", NULL);
+        }
+    }
+
+    Token = STRING_TOKEN (STR_TPM_STATUS);
+    CHAR8 TableName[4] = {'T', 'P', 'M', '2'};
+    if (FindAcpiTable(TableName)) {
+        HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"Trusted Platform Module: Active", NULL);
+    } else {
+        HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"Trusted Platform Module: Deactivated", NULL);
+    }
+}
+
+VOID WebcamStatus(VOID) {
+  EFI_STATUS                    Status;
+  UINTN                         UsbIoHandleCount;
+  EFI_HANDLE                    *UsbIoBuffer;
+  UINTN                         Index;
+  EFI_USB_IO_PROTOCOL           *UsbIo;
+  EFI_USB_DEVICE_DESCRIPTOR     DevDesc;
+  EFI_USB_INTERFACE_DESCRIPTOR  IntfDesc;
+  UINTN                         Webcams;
+  EFI_STRING_ID                 Token;
+
+  //
+  // Get all Usb IO handles in system
+  //
+  UsbIoHandleCount = 0;
+  Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiUsbIoProtocolGuid, NULL, &UsbIoHandleCount, &UsbIoBuffer);
+  if (EFI_ERROR(Status)) {
+    DEBUG ((EFI_D_INFO, "Failed to read UsbIo handles: 0x%x\n", Status));
+    return;
+  }
+
+  Webcams = 0;
+  for (Index = 0; Index < UsbIoHandleCount; Index++) {
+    DEBUG ((EFI_D_INFO, "UsbIo Handle %d\n", Index));
+
+    //
+    // Get the child Usb IO interface
+    //
+    Status = gBS->HandleProtocol(
+                     UsbIoBuffer[Index],
+                     &gEfiUsbIoProtocolGuid,
+                     (VOID **) &UsbIo
+                     );
+    if (EFI_ERROR (Status)) {
+      DEBUG ((EFI_D_INFO, "  Failed to find UsbIo protocol\n"));
+      continue;
+    }
+
+    Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((EFI_D_INFO, "  Failed to get device descriptor\n"));
+      continue;
+    }
+
+    DEBUG ((EFI_D_INFO, "  ID: 0x%04X:0x%04X\n", DevDesc.IdVendor, DevDesc.IdProduct));
+    DEBUG ((EFI_D_INFO, "  DeviceClass: %d\n", DevDesc.DeviceClass));
+    DEBUG ((EFI_D_INFO, "  DeviceSubClass: %d\n", DevDesc.DeviceSubClass));
+    DEBUG ((EFI_D_INFO, "  DeviceProtocol: %d\n", DevDesc.DeviceProtocol));
+
+    Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IntfDesc);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((EFI_D_INFO, "  Failed to get interface descriptor\n"));
+      continue;
+    }
+
+    DEBUG ((EFI_D_INFO, "  Interface: %d\n", IntfDesc.InterfaceNumber));
+    DEBUG ((EFI_D_INFO, "  InterfaceClass: %d\n", IntfDesc.InterfaceClass));
+    DEBUG ((EFI_D_INFO, "  InterfaceSubClass: %d\n", IntfDesc.InterfaceSubClass));
+    DEBUG ((EFI_D_INFO, "  InterfaceProtocol: %d\n", IntfDesc.InterfaceProtocol));
+
+    if (IntfDesc.InterfaceClass == 14 && IntfDesc.InterfaceSubClass == 1) {
+        DEBUG ((EFI_D_INFO, "  Detected Video Control interface\n"));
+        Webcams++;
+    }
+  }
+
+  FreePool (UsbIoBuffer);
+
+  //TODO: logic for not showing the warning on desktops
+  Token = STRING_TOKEN (STR_WEBCAM_STATUS);
+  if (Webcams == 0) {
+    HiiSetString (gFrontPagePrivate.HiiHandle, Token, L"Info: Webcam Module Disconnected", NULL);
+  }
+}
+
 /**
 
-  Update the banner information for the Front Page based on Smbios information.
+  Update the information for the Front Page based on Smbios information.
 
 **/
 VOID
-UpdateFrontPageBannerStrings (
+UpdateFrontPageStrings (
   VOID
   )
 {
   UINT8                             StrIndex;
+  UINT8                             Str2Index;
   CHAR16                            *NewString;
-  CHAR16                            *FirmwareVersionString;
+  CHAR16                            *NewString2;
+  CHAR16                            *NewString3;
   EFI_STATUS                        Status;
-  EFI_SMBIOS_HANDLE                 SmbiosHandle;
+  EFI_STRING_ID                     TokenToUpdate;
-  EFI_SMBIOS_PROTOCOL               *Smbios;
+  EFI_PHYSICAL_ADDRESS              *Table;
-  SMBIOS_TABLE_TYPE0                *Type0Record;
+  SMBIOS_TABLE_ENTRY_POINT          *EntryPoint;
-  SMBIOS_TABLE_TYPE1                *Type1Record;
+  SMBIOS_STRUCTURE_POINTER          SmbiosTable;
-  SMBIOS_TABLE_TYPE4                *Type4Record;
-  SMBIOS_TABLE_TYPE19               *Type19Record;
-  EFI_SMBIOS_TABLE_HEADER           *Record;
-  UINT64                            InstalledMemory;
-  BOOLEAN                           FoundCpu;
 
-  InstalledMemory = 0;
+  FirmwareConfigurationInformation();
-  FoundCpu = 0;
+  WarnNoBootableMedia ();
+  WebcamStatus();
 
-  //
+  Status = EfiGetSystemConfigurationTable (&gEfiSmbiosTableGuid, (VOID **)  &Table);
-  // Update default banner string.
+  if (EFI_ERROR (Status) || Table == NULL) {
-  //
+      return;
-  NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE4_LEFT), NULL);
-  UiCustomizeFrontPageBanner (4, TRUE, &NewString);
-  HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE4_LEFT), NewString, NULL);
-  FreePool (NewString);
-
-  NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE4_RIGHT), NULL);
-  UiCustomizeFrontPageBanner (4, FALSE, &NewString);
-  HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE4_RIGHT), NewString, NULL);
-  FreePool (NewString);
-
-  NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE5_LEFT), NULL);
-  UiCustomizeFrontPageBanner (5, TRUE, &NewString);
-  HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE5_LEFT), NewString, NULL);
-  FreePool (NewString);
-
-  NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE5_RIGHT), NULL);
-  UiCustomizeFrontPageBanner (5, FALSE, &NewString);
-  HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_CUSTOMIZE_BANNER_LINE5_RIGHT), NewString, NULL);
-  FreePool (NewString);
-
-  //
-  // Update Front Page banner strings base on SmBios Table.
-  //
-  Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **) &Smbios);
-  if (EFI_ERROR (Status)) {
-    //
-    // Smbios protocol not found, get the default value.
-    //
-    NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL), NULL);
-    UiCustomizeFrontPageBanner (1, TRUE, &NewString);
-    HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL), NewString, NULL);
-    FreePool (NewString);
-
-    NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_MODEL), NULL);
-    UiCustomizeFrontPageBanner (2, TRUE, &NewString);
-    HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_MODEL), NewString, NULL);
-    FreePool (NewString);
-
-    NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_SPEED), NULL);
-    UiCustomizeFrontPageBanner (2, FALSE, &NewString);
-    HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_SPEED), NewString, NULL);
-    FreePool (NewString);
-
-    NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION), NULL);
-    UiCustomizeFrontPageBanner (3, TRUE, &NewString);
-    HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION), NewString, NULL);
-    FreePool (NewString);
-
-    NewString = HiiGetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_MEMORY_SIZE), NULL);
-    UiCustomizeFrontPageBanner (3, FALSE, &NewString);
-    HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_MEMORY_SIZE), NewString, NULL);
-    FreePool (NewString);
-
-    return;
   }
 
-  SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
+  EntryPoint = (SMBIOS_TABLE_ENTRY_POINT*)Table;
-  Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL);
-  while (!EFI_ERROR(Status)) {
-    if (Record->Type == SMBIOS_TYPE_BIOS_INFORMATION) {
-      Type0Record = (SMBIOS_TABLE_TYPE0 *) Record;
-      StrIndex = Type0Record->BiosVersion;
-      GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type0Record + Type0Record->Hdr.Length), StrIndex, &NewString);
 
-      FirmwareVersionString = (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString);
+  SmbiosTable = GetSmbiosTableFromType (EntryPoint, EFI_SMBIOS_TYPE_BIOS_INFORMATION , 0);
-      if (*FirmwareVersionString != 0x0000 ) {
+  if (SmbiosTable.Raw != NULL) {
-        FreePool (NewString);
+    NewString2 = AllocateZeroPool (0xC0);
-        NewString = (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString);
-        UiCustomizeFrontPageBanner (3, TRUE, &NewString);
-        HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION), NewString, NULL);
-      } else {
-        UiCustomizeFrontPageBanner (3, TRUE, &NewString);
-        HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION), NewString, NULL);
-        FreePool (NewString);
-      }
-    }
 
-    if (Record->Type == SMBIOS_TYPE_SYSTEM_INFORMATION) {
+    StrIndex = SmbiosTable.Type0->BiosVersion;
-      Type1Record = (SMBIOS_TABLE_TYPE1 *) Record;
+    GetOptionalStringByIndex ((CHAR8*)((UINT8*)SmbiosTable.Raw + SmbiosTable.Hdr->Length), StrIndex, &NewString);
-      StrIndex = Type1Record->ProductName;
+    StrCatS (NewString2, 0x80 / sizeof (CHAR16), L"Version: ");
-      GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type1Record + Type1Record->Hdr.Length), StrIndex, &NewString);
+    StrCatS (NewString2, 0x80 / sizeof (CHAR16), NewString);
-      UiCustomizeFrontPageBanner (1, TRUE, &NewString);
+    TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION);
-      HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL), NewString, NULL);
+    HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString2, NULL);
-      FreePool (NewString);
+    FreePool (NewString);
-    }
+    FreePool (NewString2);
-
-    if ((Record->Type == SMBIOS_TYPE_PROCESSOR_INFORMATION) && !FoundCpu) {
-      Type4Record = (SMBIOS_TABLE_TYPE4 *) Record;
-      //
-      // The information in the record should be only valid when the CPU Socket is populated.
-      //
-      if ((Type4Record->Status & SMBIOS_TYPE4_CPU_SOCKET_POPULATED) == SMBIOS_TYPE4_CPU_SOCKET_POPULATED) {
-        StrIndex = Type4Record->ProcessorVersion;
-        GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type4Record + Type4Record->Hdr.Length), StrIndex, &NewString);
-        UiCustomizeFrontPageBanner (2, TRUE, &NewString);
-        HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_MODEL), NewString, NULL);
-        FreePool (NewString);
-
-        ConvertProcessorToString(Type4Record->CurrentSpeed, 6, &NewString);
-        UiCustomizeFrontPageBanner (2, FALSE, &NewString);
-        HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_CPU_SPEED), NewString, NULL);
-        FreePool (NewString);
-
-        FoundCpu = TRUE;
-      }
-    }
-
-    if ( Record->Type == SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS ) {
-      Type19Record = (SMBIOS_TABLE_TYPE19 *) Record;
-      if (Type19Record->StartingAddress != 0xFFFFFFFF ) {
-        InstalledMemory += RShiftU64(Type19Record->EndingAddress -
-                                     Type19Record->StartingAddress + 1, 10);
-      } else {
-        InstalledMemory += RShiftU64(Type19Record->ExtendedEndingAddress -
-                                     Type19Record->ExtendedStartingAddress + 1, 20);
-      }
-    }
-
-    Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL);
   }
 
-  //
+  SmbiosTable = GetSmbiosTableFromType (EntryPoint, SMBIOS_TYPE_SYSTEM_INFORMATION , 0);
-  // Now update the total installed RAM size
+  if (SmbiosTable.Raw != NULL) {
-  //
+    NewString3 = AllocateZeroPool (0x60);
-  ConvertMemorySizeToString ((UINT32)InstalledMemory, &NewString );
+
-  UiCustomizeFrontPageBanner (3, FALSE, &NewString);
+    StrIndex = SmbiosTable.Type1->ProductName;
-  HiiSetString (gFrontPagePrivate.HiiHandle, STRING_TOKEN (STR_FRONT_PAGE_MEMORY_SIZE), NewString, NULL);
+    Str2Index = SmbiosTable.Type1->Manufacturer;
-  FreePool (NewString);
+    GetOptionalStringByIndex ((CHAR8*)((UINT8*)SmbiosTable.Raw + SmbiosTable.Hdr->Length), StrIndex, &NewString);
+    GetOptionalStringByIndex ((CHAR8*)((UINT8*)SmbiosTable.Raw + SmbiosTable.Hdr->Length), Str2Index, &NewString2);
+    StrCatS (NewString3, 0x60 / sizeof (CHAR16), NewString2);
+    StrCatS (NewString3, 0x60 / sizeof (CHAR16), L" ");
+    StrCatS (NewString3, 0x60 / sizeof (CHAR16), NewString);
+    TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_TITLE);
+    HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString3, NULL);
+    FreePool (NewString);
+
+    NewString3 = AllocateZeroPool (0x60);
+
+    StrIndex = SmbiosTable.Type1->Version;
+    GetOptionalStringByIndex ((CHAR8*)((UINT8*)SmbiosTable.Raw + SmbiosTable.Hdr->Length), StrIndex, &NewString);
+    StrCatS (NewString3, 0x60 / sizeof (CHAR16), L"Model: ");
+    StrCatS (NewString3, 0x60 / sizeof (CHAR16), NewString);
+    TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL);
+    HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString3, NULL);
+    FreePool (NewString);
+    FreePool (NewString2);
+    FreePool (NewString3);
+  }
 }
 
 /**
@@ -892,6 +1268,8 @@ InitializeUserInterface (
   UINTN                              BootTextColumn;
   UINTN                              BootTextRow;
 
+  gSystemTable = SystemTable;
+
   if (!mModeInitialized) {
     //
     // After the console is ready, get current video resolution
@@ -1017,11 +1395,6 @@ UiEntry (
 
   FreeFrontPage ();
 
-  if (mLanguageString != NULL) {
-    FreePool (mLanguageString);
-    mLanguageString = NULL;
-  }
-
   //
   //Will leave browser, check any reset required change is applied? if yes, reset system
   //
@@ -1034,10 +1407,6 @@ UiEntry (
 //  user change any option setting which needs a reset to be effective, and  the reset will be applied according to  the user selection.
 //
 
-
-
-
-
 /**
   Record the info that  a reset is required.
   A  module boolean variable is used to record whether a reset is required.
@@ -1052,10 +1421,6 @@ EnableResetRequired (
   mResetRequired = TRUE;
 }
 
-
-
-
-
 /**
   Check if  user changed any option setting which needs a system reset to be effective.
 
@@ -1110,4 +1475,3 @@ SetupResetReminder (
     gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
   }
 }
-

MdeModulePkg/Application/UiApp/FrontPage.h

@@ -32,9 +32,9 @@ extern EFI_FORM_BROWSER2_PROTOCOL      *gFormBrowser2;
 //
 // These are defined as the same with vfr file
 //
-#define FRONT_PAGE_FORM_ID             0x1000
+#define FRONT_PAGE_FORM_ID             0x7600
 
-#define LABEL_FRANTPAGE_INFORMATION    0x1000
+#define LABEL_FRONTPAGE_INFORMATION    0x1000
 #define LABEL_END                      0xffff
 
 #define FRONT_PAGE_FORMSET_GUID \
@@ -52,7 +52,6 @@ typedef struct {
   //
   EFI_HII_HANDLE                  HiiHandle;
   EFI_HANDLE                      DriverHandle;
-  EFI_STRING_ID                   *LanguageToken;
 
   //
   // Produced protocols
@@ -210,4 +209,3 @@ ExtractDevicePathFromHiiHandle (
   );
 
 #endif // _FRONT_PAGE_H_
-

MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.c

@@ -29,35 +29,15 @@ UiCustomizeFrontPage (
   IN VOID            *StartOpCodeHandle
   )
 {
-  //
-  // Create "Select Language" menu with Oneof opcode.
-  //
-  UiCreateLanguageMenu (HiiHandle, StartOpCodeHandle);
-
-  //
-  // Create empty line.
-  //
-  UiCreateEmptyLine(HiiHandle, StartOpCodeHandle);
-
-  //
-  // Find third party drivers which need to be shown in the front page.
-  //
-  UiListThirdPartyDrivers (HiiHandle, &gEfiIfrFrontPageGuid, NULL, StartOpCodeHandle);
-
-  //
-  // Create empty line.
-  //
-  UiCreateEmptyLine(HiiHandle, StartOpCodeHandle);
-
   //
   // Create "Continue" menu.
   //
   UiCreateContinueMenu(HiiHandle, StartOpCodeHandle);
 
   //
-  // Create reset menu.
+  // Find third party drivers which need to be shown in the front page.
   //
-  UiCreateResetMenu(HiiHandle, StartOpCodeHandle);
+  UiListThirdPartyDrivers (HiiHandle, &gEfiIfrFrontPageGuid, NULL, StartOpCodeHandle);
 }
 
 /**
@@ -96,44 +76,3 @@ UiFrontPageCallbackHandler (
 
   return EFI_UNSUPPORTED;
 }
-
-/**
-  Update the banner string in the front page.
-
-  Current layout for the banner string like below:
-  PS: Totally only 5 lines of banner supported.
-
-  Line 1: Left BannerStr                           RightBannerStr
-  Line 2: Left BannerStr                           RightBannerStr
-  Line 3: Left BannerStr                           RightBannerStr
-  Line 4: Left BannerStr                           RightBannerStr
-  Line 5: Left BannerStr                           RightBannerStr
-  <EmptyLine>
-  First menu in front page.
-  ...
-
-  @param  LineIndex         The line index of the banner need to check.
-  @param  LeftOrRight       The left or right banner need to check.
-  @param  BannerStr         Banner string need to update.
-                            Input the current string and user can update
-                            it and return the new string.
-
-**/
-VOID
-UiCustomizeFrontPageBanner (
-  IN     UINTN          LineIndex,
-  IN     BOOLEAN        LeftOrRight,
-  IN OUT EFI_STRING     *BannerStr
-  )
-{
-  if ((LineIndex == 5) && LeftOrRight) {
-    // Update STR_CUSTOMIZE_BANNER_LINE5_LEFT
-    if (PcdGetBool(PcdTestKeyUsed)) {
-      if (BannerStr != NULL) {
-        FreePool(*BannerStr);
-      }
-      *BannerStr = HiiGetString(gFrontPagePrivate.HiiHandle, STRING_TOKEN(STR_TEST_KEY_USED), NULL);
-    }
-  }
-  return;
-}

MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.h

@@ -9,35 +9,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #ifndef __FRONTPAGE_CUSTOMIZED_UI_H__
 #define __FRONTPAGE_CUSTOMIZED_UI_H__
 
-/**
-  Update the banner string in the front page.
-
-  Current layout for the banner string like below:
-  PS: Totally only 5 lines of banner supported.
-
-  Line 1: Left BannerStr                           RightBannerStr
-  Line 2: Left BannerStr                           RightBannerStr
-  Line 3: Left BannerStr                           RightBannerStr
-  Line 4: Left BannerStr                           RightBannerStr
-  Line 5: Left BannerStr                           RightBannerStr
-  <EmptyLine>
-  First menu in front page.
-  ...
-
-  @param  LineIndex         The line index of the banner need to check.
-  @param  LeftOrRight       The left or right banner need to check.
-  @param  BannerStr         Banner string need to update.
-                            Input the current string and user can update
-                            it and return the new string.
-
-**/
-VOID
-UiCustomizeFrontPageBanner (
-  IN     UINTN          LineIndex,
-  IN     BOOLEAN        LeftOrRight,
-  IN OUT EFI_STRING     *BannerStr
-  );
-
 /**
   Customize menus in the page.
 

MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c

@@ -35,8 +35,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define UI_HII_DRIVER_LIST_SIZE               0x8
 
 #define FRONT_PAGE_KEY_CONTINUE               0x1000
-#define FRONT_PAGE_KEY_RESET                  0x1001
-#define FRONT_PAGE_KEY_LANGUAGE               0x1002
 #define FRONT_PAGE_KEY_DRIVER                 0x2000
 
 typedef struct {
@@ -47,112 +45,10 @@ typedef struct {
   BOOLEAN         EmptyLineAfter;
 } UI_HII_DRIVER_INSTANCE;
 
-CHAR8                        *gLanguageString;
-EFI_STRING_ID                *gLanguageToken;
 UI_HII_DRIVER_INSTANCE       *gHiiDriverList;
 extern EFI_HII_HANDLE        gStringPackHandle;
-UINT8                        gCurrentLanguageIndex;
 
 
-/**
-  Get next language from language code list (with separator ';').
-
-  If LangCode is NULL, then ASSERT.
-  If Lang is NULL, then ASSERT.
-
-  @param  LangCode    On input: point to first language in the list. On
-                                 output: point to next language in the list, or
-                                 NULL if no more language in the list.
-  @param  Lang           The first language in the list.
-
-**/
-VOID
-GetNextLanguage (
-  IN OUT CHAR8      **LangCode,
-  OUT CHAR8         *Lang
-  )
-{
-  UINTN  Index;
-  CHAR8  *StringPtr;
-
-  ASSERT (LangCode != NULL);
-  ASSERT (*LangCode != NULL);
-  ASSERT (Lang != NULL);
-
-  Index = 0;
-  StringPtr = *LangCode;
-  while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
-    Index++;
-  }
-
-  CopyMem (Lang, StringPtr, Index);
-  Lang[Index] = 0;
-
-  if (StringPtr[Index] == ';') {
-    Index++;
-  }
-  *LangCode = StringPtr + Index;
-}
-
-/**
-  This function processes the language changes in configuration.
-
-  @param Value           A pointer to the data being sent to the original exporting driver.
-
-
-  @retval  TRUE          The callback successfully handled the action.
-  @retval  FALSE         The callback not supported in this handler.
-
-**/
-EFI_STATUS
-LanguageChangeHandler (
-  IN  EFI_IFR_TYPE_VALUE                     *Value
-  )
-{
-  CHAR8                         *LangCode;
-  CHAR8                         *Lang;
-  UINTN                         Index;
-  EFI_STATUS                    Status;
-
-  //
-  // Allocate working buffer for RFC 4646 language in supported LanguageString.
-  //
-  Lang = AllocatePool (AsciiStrSize (gLanguageString));
-  ASSERT (Lang != NULL);
-
-  Index = 0;
-  LangCode = gLanguageString;
-  while (*LangCode != 0) {
-    GetNextLanguage (&LangCode, Lang);
-
-    if (Index == Value->u8) {
-      gCurrentLanguageIndex = Value->u8;
-      break;
-    }
-
-    Index++;
-  }
-
-  if (Index == Value->u8) {
-    Status = gRT->SetVariable (
-                    L"PlatformLang",
-                    &gEfiGlobalVariableGuid,
-                    EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
-                    AsciiStrSize (Lang),
-                    Lang
-                    );
-    if (EFI_ERROR (Status)) {
-      FreePool (Lang);
-      return EFI_DEVICE_ERROR;
-    }
-  } else {
-    ASSERT (FALSE);
-  }
-  FreePool (Lang);
-
-  return EFI_SUCCESS;
-}
-
 /**
   This function processes the results of changes in configuration.
 
@@ -181,19 +77,12 @@ UiSupportLibCallbackHandler (
   OUT EFI_STATUS                             *Status
   )
 {
-  if (QuestionId != FRONT_PAGE_KEY_CONTINUE &&
+  if (QuestionId != FRONT_PAGE_KEY_CONTINUE) {
-      QuestionId != FRONT_PAGE_KEY_RESET &&
-      QuestionId != FRONT_PAGE_KEY_LANGUAGE) {
     return FALSE;
   }
 
   if (Action == EFI_BROWSER_ACTION_RETRIEVE) {
-    if (QuestionId == FRONT_PAGE_KEY_LANGUAGE) {
+    *Status = EFI_UNSUPPORTED;
-      Value->u8 = gCurrentLanguageIndex;
-      *Status = EFI_SUCCESS;
-    } else {
-      *Status = EFI_UNSUPPORTED;
-    }
     return TRUE;
   }
 
@@ -220,17 +109,6 @@ UiSupportLibCallbackHandler (
       *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
       break;
 
-    case FRONT_PAGE_KEY_LANGUAGE:
-      *Status = LanguageChangeHandler(Value);
-      break;
-
-    case FRONT_PAGE_KEY_RESET:
-      //
-      // Reset
-      //
-      gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
-      *Status = EFI_UNSUPPORTED;
-
     default:
       break;
     }
@@ -239,156 +117,6 @@ UiSupportLibCallbackHandler (
   return TRUE;
 }
 
-/**
-  Create Select language menu in the front page with oneof opcode.
-
-  @param[in]    HiiHandle           The hii handle for the Uiapp driver.
-  @param[in]    StartOpCodeHandle   The opcode handle to save the new opcode.
-
-**/
-VOID
-UiCreateLanguageMenu (
-  IN EFI_HII_HANDLE              HiiHandle,
-  IN VOID                        *StartOpCodeHandle
-  )
-{
-  CHAR8                       *LangCode;
-  CHAR8                       *Lang;
-  UINTN                       LangSize;
-  CHAR8                       *CurrentLang;
-  UINTN                       OptionCount;
-  CHAR16                      *StringBuffer;
-  VOID                        *OptionsOpCodeHandle;
-  UINTN                       StringSize;
-  EFI_STATUS                  Status;
-  EFI_HII_STRING_PROTOCOL     *HiiString;
-
-  Lang         = NULL;
-  StringBuffer = NULL;
-
-  //
-  // Init OpCode Handle and Allocate space for creation of UpdateData Buffer
-  //
-  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
-  ASSERT (OptionsOpCodeHandle != NULL);
-
-  GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLang, NULL);
-
-  //
-  // Get Support language list from variable.
-  //
-  GetEfiGlobalVariable2 (L"PlatformLangCodes", (VOID**)&gLanguageString, NULL);
-  if (gLanguageString == NULL) {
-    gLanguageString = AllocateCopyPool (
-                               AsciiStrSize ((CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)),
-                               (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)
-                               );
-    ASSERT (gLanguageString != NULL);
-  }
-
-  if (gLanguageToken == NULL) {
-    //
-    // Count the language list number.
-    //
-    LangCode = gLanguageString;
-    Lang = AllocatePool (AsciiStrSize (gLanguageString));
-    ASSERT (Lang != NULL);
-
-    OptionCount = 0;
-    while (*LangCode != 0) {
-      GetNextLanguage (&LangCode, Lang);
-      OptionCount ++;
-    }
-
-    //
-    // Allocate extra 1 as the end tag.
-    //
-    gLanguageToken = AllocateZeroPool ((OptionCount + 1) * sizeof (EFI_STRING_ID));
-    ASSERT (gLanguageToken != NULL);
-
-    Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString);
-    ASSERT_EFI_ERROR (Status);
-
-    LangCode     = gLanguageString;
-    OptionCount  = 0;
-    while (*LangCode != 0) {
-      GetNextLanguage (&LangCode, Lang);
-
-      StringSize = 0;
-      Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
-      if (Status == EFI_BUFFER_TOO_SMALL) {
-        StringBuffer = AllocateZeroPool (StringSize);
-        ASSERT (StringBuffer != NULL);
-        Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
-        ASSERT_EFI_ERROR (Status);
-      }
-
-      if (EFI_ERROR (Status)) {
-        LangSize = AsciiStrSize (Lang);
-        StringBuffer = AllocatePool (LangSize * sizeof (CHAR16));
-        ASSERT (StringBuffer != NULL);
-        AsciiStrToUnicodeStrS (Lang, StringBuffer, LangSize);
-      }
-
-      ASSERT (StringBuffer != NULL);
-      gLanguageToken[OptionCount] = HiiSetString (HiiHandle, 0, StringBuffer, NULL);
-      FreePool (StringBuffer);
-
-      OptionCount++;
-    }
-  }
-
-  ASSERT (gLanguageToken != NULL);
-  LangCode = gLanguageString;
-  OptionCount = 0;
-  if (Lang == NULL) {
-    Lang = AllocatePool (AsciiStrSize (gLanguageString));
-    ASSERT (Lang != NULL);
-  }
-  while (*LangCode != 0) {
-    GetNextLanguage (&LangCode, Lang);
-
-    if (CurrentLang != NULL && AsciiStrCmp (Lang, CurrentLang) == 0) {
-      HiiCreateOneOfOptionOpCode (
-        OptionsOpCodeHandle,
-        gLanguageToken[OptionCount],
-        EFI_IFR_OPTION_DEFAULT,
-        EFI_IFR_NUMERIC_SIZE_1,
-        (UINT8) OptionCount
-        );
-      gCurrentLanguageIndex = (UINT8) OptionCount;
-    } else {
-      HiiCreateOneOfOptionOpCode (
-        OptionsOpCodeHandle,
-        gLanguageToken[OptionCount],
-        0,
-        EFI_IFR_NUMERIC_SIZE_1,
-        (UINT8) OptionCount
-        );
-    }
-
-    OptionCount++;
-  }
-
-  if (CurrentLang != NULL) {
-    FreePool (CurrentLang);
-  }
-  FreePool (Lang);
-
-  HiiCreateOneOfOpCode (
-    StartOpCodeHandle,
-    FRONT_PAGE_KEY_LANGUAGE,
-    0,
-    0,
-    STRING_TOKEN (STR_LANGUAGE_SELECT),
-    STRING_TOKEN (STR_LANGUAGE_SELECT_HELP),
-    EFI_IFR_FLAG_CALLBACK,
-    EFI_IFR_NUMERIC_SIZE_1,
-    OptionsOpCodeHandle,
-    NULL
-    );
-}
-
 /**
   Create continue menu in the front page.
 
@@ -405,8 +133,8 @@ UiCreateContinueMenu (
   HiiCreateActionOpCode (
     StartOpCodeHandle,
     FRONT_PAGE_KEY_CONTINUE,
-    STRING_TOKEN (STR_CONTINUE_PROMPT),
+    STRING_TOKEN (STR_BOOT_DEFAULT_PROMPT),
-    STRING_TOKEN (STR_CONTINUE_PROMPT),
+    STRING_TOKEN (STR_BOOT_DEFAULT_HELP),
     EFI_IFR_FLAG_CALLBACK,
     0
     );
@@ -425,30 +153,7 @@ UiCreateEmptyLine (
   IN VOID                        *StartOpCodeHandle
   )
 {
-  HiiCreateSubTitleOpCode (StartOpCodeHandle, STRING_TOKEN (STR_NULL_STRING), 0, 0, 0);
+  HiiCreateSubTitleOpCode (StartOpCodeHandle, STRING_TOKEN (STR_EMPTY_STRING), 0, 0, 0);
-}
-
-/**
-  Create Reset menu in the front page.
-
-  @param[in]    HiiHandle           The hii handle for the Uiapp driver.
-  @param[in]    StartOpCodeHandle   The opcode handle to save the new opcode.
-
-**/
-VOID
-UiCreateResetMenu (
-  IN EFI_HII_HANDLE              HiiHandle,
-  IN VOID                        *StartOpCodeHandle
-  )
-{
-  HiiCreateActionOpCode (
-    StartOpCodeHandle,
-    FRONT_PAGE_KEY_RESET,
-    STRING_TOKEN (STR_RESET_STRING),
-    STRING_TOKEN (STR_RESET_STRING),
-    EFI_IFR_FLAG_CALLBACK,
-    0
-    );
 }
 
 /**

MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.h

@@ -35,32 +35,6 @@ UiCreateEmptyLine (
   IN VOID                        *StartOpCodeHandle
   );
 
-/**
-  Create Select language menu in the front page with oneof opcode.
-
-  @param[in]    HiiHandle           The hii handle for the Uiapp driver.
-  @param[in]    StartOpCodeHandle   The opcode handle to save the new opcode.
-
-**/
-VOID
-UiCreateLanguageMenu (
-  IN EFI_HII_HANDLE              HiiHandle,
-  IN VOID                        *StartOpCodeHandle
-  );
-
-/**
-  Create Reset menu.
-
-  @param[in]    HiiHandle           The hii handle for the Uiapp driver.
-  @param[in]    StartOpCodeHandle   The opcode handle to save the new opcode.
-
-**/
-VOID
-UiCreateResetMenu (
-  IN EFI_HII_HANDLE              HiiHandle,
-  IN VOID                        *StartOpCodeHandle
-  );
-
 /**
   Rename the driver name if necessary.
 

MdeModulePkg/Application/UiApp/FrontPageStrings.uni

@@ -10,59 +10,19 @@
 /=#
 
 #langdef   en-US "English"
-#langdef   fr-FR "Français"
-#langdef   en    "Standard English"
-#langdef   fr    "Standard Français"
 
 #string STR_FRONT_PAGE_TITLE           #language en-US  "Front Page"
-                                       #language fr-FR  "Front Page"
+#string STR_FRONT_PAGE_COMPUTER_MODEL  #language en-US  "<model>"
-#string STR_FRONT_PAGE_COMPUTER_MODEL  #language en-US  ""
+#string STR_FRONT_PAGE_BIOS_VERSION    #language en-US  "<bios>"
-                                       #language fr-FR  ""
+#string STR_FIRMWARE_INFO              #language en-US  "Firmware Configuration Information"
-#string STR_FRONT_PAGE_CPU_MODEL       #language en-US  ""
+#string STR_BOOT_DEFAULT_PROMPT        #language en-US  "Boot Default"
-                                       #language fr-FR  ""
+#string STR_BOOT_DEFAULT_HELP          #language en-US  "Boot the default entry"
-#string STR_FRONT_PAGE_CPU_SPEED       #language en-US  ""
-                                       #language fr-FR  ""
-#string STR_FRONT_PAGE_MEMORY_SIZE     #language en-US  ""
-                                       #language fr-FR  ""
-#string STR_FRONT_PAGE_BIOS_VERSION    #language en-US  ""
-                                       #language fr-FR  ""
-#string STR_FRONT_PAGE_BANNER_0_LEFT   #language en-US  "Wonder Computer Model 1000Z  Manufactured by Intel®"
-                                       #language fr-FR  "Demander le Modèle d'Ordinateur 1000Z A Fabriqué par Intel®"
-#string STR_FRONT_PAGE_BANNER_0_RIGHT  #language en-US  "OK"
-                                       #language fr-FR  "Bon"
-#string STR_FRONT_PAGE_BANNER_1_LEFT   #language en-US  "2 Pentium® X Xeon processors running at 800Thz"
-                                       #language fr-FR  "2 processeurs Pentium® X Xeon tournants à 800Thz"
-#string STR_FRONT_PAGE_BANNER_1_RIGHT  #language en-US  "24 TB System RAM"
-                                       #language fr-FR  "24 TB RAM de Système"
-#string STR_FRONT_PAGE_BANNER_2_LEFT   #language en-US  "ACME® EFI BIOS Version 13.5 Release 1039.92"
-                                       #language fr-FR  "ACME® EFI BIOS Version 13.5 Release 1039.92"
-#string STR_FRONT_PAGE_BANNER_3_LEFT   #language en-US  "Serial Number: 1Z123456789MARMAR (Need SMBIOS entries)"
-                                       #language fr-FR  "Numéro de série: 1Z123456789MARMAR (Les entrées de SMBIOS de besoin)"
-#string STR_CONTINUE_PROMPT            #language en-US  "Continue"
-                                       #language fr-FR  "Continuer"
-#string STR_CONTINUE_HELP              #language en-US  "This selection will direct the system to continue to booting process"
-                                       #language fr-FR  "Cette sélection dirigera le système pour continuer au processus d'amorçage"
-#string STR_LANGUAGE_SELECT            #language en-US  "Select Language"
-                                       #language fr-FR  "Choisir la Langue"
-#string STR_LANGUAGE_SELECT_HELP       #language en-US  "This is the option one adjusts to change the language for the current system"
-                                       #language fr-FR  "Ceci est l'option qu'on ajuste pour changer la langue pour le système actuel"
 #string STR_MISSING_STRING             #language en-US  "Missing String"
-                                       #language fr-FR  "Missing String"
+#string STR_NO_BOOTABLE_MEDIA          #language en-US  ""
+#string STR_WEBCAM_STATUS              #language en-US  ""
 #string STR_EMPTY_STRING               #language en-US  ""
-                                       #language fr-FR  ""
+#string STR_VIRTUALIZATION             #language en-US  ""
-#string STR_RESET_STRING               #language en-US  "Reset"
+#string STR_VIRTUALIZATION_STATUS      #language en-US  ""
-                                       #language fr-FR  "Reset"
+#string STR_IOMMU_STATUS               #language en-US  ""
-#string STR_RESET_STRING_HELP          #language en-US  "Reset the current setting."
+#string STR_TPM_STATUS                 #language en-US  ""
-                                       #language fr-FR  "Reset the current setting."
+#string STR_ME_STATUS                  #language en-US  ""
-#string STR_CUSTOMIZE_BANNER_LINE4_LEFT  #language en-US  ""
-                                         #language fr-FR  ""
-#string STR_CUSTOMIZE_BANNER_LINE4_RIGHT #language en-US  ""
-                                         #language fr-FR  ""
-#string STR_CUSTOMIZE_BANNER_LINE5_LEFT  #language en-US  ""
-                                         #language fr-FR  ""
-#string STR_CUSTOMIZE_BANNER_LINE5_RIGHT #language en-US  ""
-                                         #language fr-FR  ""
-#string STR_TEST_KEY_USED                #language en-US  "WARNING: Test key detected."
-                                         #language fr-FR  "WARNING: Test key detected."
-#string STR_NULL_STRING                #language en-US  " "
-                                       #language fr-FR  " "

MdeModulePkg/Application/UiApp/FrontPageVfr.Vfr

@@ -9,72 +9,53 @@
 
 #define FORMSET_GUID  { 0x9e0c30bc, 0x3f06, 0x4ba6, 0x82, 0x88, 0x9, 0x17, 0x9b, 0x85, 0x5d, 0xbe }
 
-#define FRONT_PAGE_FORM_ID             0x1000
+#define FRONT_PAGE_FORM_ID             0x7600
+#define FIRMWARE_INFO_FORM_ID          0x7601
 
-#define LABEL_FRANTPAGE_INFORMATION    0x1000
+#define LABEL_FRONTPAGE_INFORMATION    0x1000
 #define LABEL_END                      0xffff
 
 formset
-  guid     = FORMSET_GUID,
+  guid      = FORMSET_GUID,
-  title    = STRING_TOKEN(STR_FRONT_PAGE_TITLE),
+  title     = STRING_TOKEN(STR_FRONT_PAGE_TITLE),
-  help     = STRING_TOKEN(STR_EMPTY_STRING ),
+  help      = STRING_TOKEN(STR_EMPTY_STRING),
   classguid = FORMSET_GUID,
 
   form formid = FRONT_PAGE_FORM_ID,
-       title  = STRING_TOKEN(STR_FRONT_PAGE_TITLE);
+    title  = STRING_TOKEN(STR_FRONT_PAGE_TITLE);
 
-    banner
+    subtitle text = STRING_TOKEN(STR_FRONT_PAGE_COMPUTER_MODEL);
-      title = STRING_TOKEN(STR_FRONT_PAGE_COMPUTER_MODEL),
+    subtitle text = STRING_TOKEN(STR_FRONT_PAGE_BIOS_VERSION);
-      line  1,
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
-      align left;
 
-    banner
+    label LABEL_FRONTPAGE_INFORMATION;
-      title = STRING_TOKEN(STR_FRONT_PAGE_CPU_MODEL),
-      line  2,
-      align left;
-
-    banner
-      title = STRING_TOKEN(STR_FRONT_PAGE_CPU_SPEED),
-      line  2,
-      align right;
-
-    banner
-      title = STRING_TOKEN(STR_FRONT_PAGE_BIOS_VERSION),
-      line  3,
-      align left;
-
-    banner
-      title = STRING_TOKEN(STR_FRONT_PAGE_MEMORY_SIZE),
-      line  3,
-      align right;
-
-    banner
-      title = STRING_TOKEN(STR_CUSTOMIZE_BANNER_LINE4_LEFT),
-      line  4,
-      align left;
-
-    banner
-      title = STRING_TOKEN(STR_CUSTOMIZE_BANNER_LINE4_RIGHT),
-      line  4,
-      align right;
-
-    banner
-      title = STRING_TOKEN(STR_CUSTOMIZE_BANNER_LINE5_LEFT),
-      line  5,
-      align left;
-
-    banner
-      title = STRING_TOKEN(STR_CUSTOMIZE_BANNER_LINE5_RIGHT),
-      line  5,
-      align right;
-
-    label LABEL_FRANTPAGE_INFORMATION;
     //
     // This is where we will dynamically add a Action type op-code to show
     // the platform information.
     //
     label LABEL_END;
 
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    goto FIRMWARE_INFO_FORM_ID,
+      prompt = STRING_TOKEN(STR_FIRMWARE_INFO),
+      help = STRING_TOKEN(STR_EMPTY_STRING);
+
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    subtitle text = STRING_TOKEN(STR_NO_BOOTABLE_MEDIA);
+    subtitle text = STRING_TOKEN(STR_WEBCAM_STATUS);
+
+  endform;
+
+  form formid = FIRMWARE_INFO_FORM_ID,
+    title = STRING_TOKEN(STR_FIRMWARE_INFO);
+
+    subtitle text = STRING_TOKEN(STR_VIRTUALIZATION);
+    subtitle text = STRING_TOKEN(STR_VIRTUALIZATION_STATUS);
+    subtitle text = STRING_TOKEN(STR_IOMMU_STATUS);
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    subtitle text = STRING_TOKEN(STR_TPM_STATUS);
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    subtitle text = STRING_TOKEN(STR_ME_STATUS);
   endform;
 
 endformset;

MdeModulePkg/Application/UiApp/UiApp.inf

@@ -56,8 +56,10 @@
   UefiBootManagerLib
 
 [Guids]
+  gEfiAcpiTableGuid                             ## CONSUMES ## GUID
   gEfiIfrTianoGuid                              ## CONSUMES ## GUID (Extended IFR Guid Opcode)
   gEfiIfrFrontPageGuid                          ## CONSUMES ## GUID
+  gEfiSmbiosTableGuid                           ## CONSUMES
 
 [Protocols]
   gEfiSmbiosProtocolGuid                        ## CONSUMES

MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c

@@ -2530,10 +2530,12 @@ PciEnumeratorLight (
       //
       RemoveRejectedPciDevices (RootBridgeDev->Handle, RootBridgeDev);
 
-      //
+      if (!PcdGetBool (PcdPciDisableBusEnumeration)) {
-      // Process option rom light
+        //
-      //
+        // Process option rom light
-      ProcessOptionRomLight (RootBridgeDev);
+        //
+        ProcessOptionRomLight (RootBridgeDev);
+      }
 
       //
       // Determine attributes for all devices under this root bridge

MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c

@@ -2,7 +2,8 @@
 
   XHCI transfer scheduling routines.
 
-Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2020, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -1683,9 +1684,11 @@ XhcPollPortStatusChange (
   EFI_STATUS        Status;
   UINT8             Speed;
   UINT8             SlotId;
+  UINT8             Retries;
   USB_DEV_ROUTE     RouteChart;
 
   Status = EFI_SUCCESS;
+  Retries = XHC_INIT_DEVICE_SLOT_RETRIES;
 
   if ((PortState->PortChangeStatus & (USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | USB_PORT_STAT_C_OVERCURRENT | USB_PORT_STAT_C_RESET)) == 0) {
     return EFI_SUCCESS;
@@ -1727,17 +1730,29 @@ XhcPollPortStatusChange (
     } else if ((PortState->PortStatus & USB_PORT_STAT_SUPER_SPEED) != 0) {
       Speed = EFI_USB_SPEED_SUPER;
     }
-    //
+
-    // Execute Enable_Slot cmd for attached device, initialize device context and assign device address.
+    do {
-    //
+      //
-    SlotId = XhcRouteStringToSlotId (Xhc, RouteChart);
+      // Execute Enable_Slot cmd for attached device, initialize device context and assign device address.
-    if ((SlotId == 0) && ((PortState->PortChangeStatus & USB_PORT_STAT_C_RESET) != 0)) {
+      //
-      if (Xhc->HcCParams.Data.Csz == 0) {
+      SlotId = XhcRouteStringToSlotId (Xhc, RouteChart);
-        Status = XhcInitializeDeviceSlot (Xhc, ParentRouteChart, Port, RouteChart, Speed);
+      if ((SlotId == 0) && ((PortState->PortChangeStatus & USB_PORT_STAT_C_RESET) != 0)) {
-      } else {
+        if (Xhc->HcCParams.Data.Csz == 0) {
-        Status = XhcInitializeDeviceSlot64 (Xhc, ParentRouteChart, Port, RouteChart, Speed);
+          Status = XhcInitializeDeviceSlot (Xhc, ParentRouteChart, Port, RouteChart, Speed);
+        } else {
+          Status = XhcInitializeDeviceSlot64 (Xhc, ParentRouteChart, Port, RouteChart, Speed);
+        }
       }
-    }
+
+      //
+      // According to the xHCI specification (section 4.6.5), "a USB Transaction
+      // Error Completion Code for an Address Device Command may be due to a Stall
+      // response from a device. Software should issue a Disable Slot Command for
+      // the Device Slot then an Enable Slot Command to recover from this error."
+      // Therefore, retry the device slot initialization if it fails due to a
+      // device error.
+      //
+    } while ((Status == EFI_DEVICE_ERROR) && (Retries-- != 0));
   }
 
   return Status;
@@ -2245,6 +2260,9 @@ XhcInitializeDeviceSlot (
     DeviceAddress = (UINT8) ((DEVICE_CONTEXT *) OutputContext)->Slot.DeviceAddress;
     DEBUG ((EFI_D_INFO, "    Address %d assigned successfully\n", DeviceAddress));
     Xhc->UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;
+  } else {
+    DEBUG ((DEBUG_INFO, "    Address %d assigned unsuccessfully\n"));
+    XhcDisableSlotCmd (Xhc, SlotId);
   }
 
   return Status;
@@ -2455,7 +2473,11 @@ XhcInitializeDeviceSlot64 (
     DeviceAddress = (UINT8) ((DEVICE_CONTEXT_64 *) OutputContext)->Slot.DeviceAddress;
     DEBUG ((EFI_D_INFO, "    Address %d assigned successfully\n", DeviceAddress));
     Xhc->UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;
+  } else {
+    DEBUG ((DEBUG_INFO, "    Address %d assigned unsuccessfully\n"));
+    XhcDisableSlotCmd64 (Xhc, SlotId);
   }
+
   return Status;
 }
 

MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.h

@@ -11,6 +11,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define _EFI_XHCI_SCHED_H_
 
 #define XHC_URB_SIG      SIGNATURE_32 ('U', 'S', 'B', 'R')
+#define XHC_INIT_DEVICE_SLOT_RETRIES 1
 
 //
 // Transfer types, used in URB to identify the transfer type

MdeModulePkg/Core/Dxe/Hand/Notify.c

@@ -70,6 +70,10 @@ CoreRemoveInterfaceFromProtocol (
     for(Link = ProtEntry->Notify.ForwardLink; Link != &ProtEntry->Notify; Link=Link->ForwardLink) {
       ProtNotify = CR(Link, PROTOCOL_NOTIFY, Link, PROTOCOL_NOTIFY_SIGNATURE);
 
+      // Signal notify events before removing the protocol too.
+      // XXX: What effect does this have on other code?
+      CoreSignalEvent (ProtNotify->Event);
+
       if (ProtNotify->Position == &Prot->ByProtocol) {
         ProtNotify->Position = Prot->ByProtocol.BackLink;
       }

MdeModulePkg/Include/Library/BootLogoLib.h

@@ -61,4 +61,14 @@ BootLogoUpdateProgress (
   IN UINTN                         PreviousValue
   );
 
+/**
+
+  Install Boot Logo into BGRT table
+
+**/
+VOID
+AddBGRT (
+  VOID
+  );
+
 #endif

MdeModulePkg/Library/BootLogoLib/Bgrt.c

@@ -0,0 +1,283 @@
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/Bmp.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/BootLogoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/FirmwareVolume2.h>
+#include <Protocol/SimpleFileSystem.h>
+
+/** RSDP (Root System Description Pointer) */
+typedef struct {
+  CHAR8  signature[8];
+  UINT8  checksum;
+  CHAR8  oem_id[6];
+  UINT8  revision;
+  UINT32 rsdt_address;
+  UINT32 length;
+  UINT64 xsdt_address;
+  UINT8  extended_checksum;
+  UINT8  reserved[3];
+} ACPI_20_RSDP;
+
+/** SDT (System Description Table) entry header */
+typedef struct {
+    CHAR8  signature[4];
+    UINT32 length;
+    UINT8  revision;
+    UINT8  checksum;
+    CHAR8  oem_id[6];
+    CHAR8  oem_table_id[8];
+    UINT32 oem_revision;
+    UINT32 asl_compiler_id;
+    UINT32 asl_compiler_revision;
+} ACPI_SDT_HEADER;
+
+/** BGRT structure */
+typedef struct {
+    ACPI_SDT_HEADER header;
+    UINT16 version;
+    UINT8  status;
+    UINT8  image_type;
+    UINT64 image_address;
+    UINT32 image_offset_x;
+    UINT32 image_offset_y;
+} ACPI_BGRT;
+
+EFI_STATUS
+EFIAPI
+LoadBmp(
+    OUT EFI_PHYSICAL_ADDRESS *BmpAddress,
+    OUT UINT32 *BmpSize
+)
+{
+  EFI_STATUS                    Status;
+  UINTN                         FvProtocolCount;
+  EFI_HANDLE                    *FvHandles;
+  EFI_FIRMWARE_VOLUME2_PROTOCOL  *Fv;
+  UINTN                         Index;
+  UINT32                        AuthenticationStatus;
+
+  UINT8                         *Buffer;
+  UINTN                         BmpBufferSize;
+
+  Buffer = 0;
+  FvHandles       = NULL;
+
+  Status = gBS->LocateHandleBuffer (
+    ByProtocol,
+    &gEfiFirmwareVolume2ProtocolGuid,
+    NULL,
+    &FvProtocolCount,
+    &FvHandles
+    );
+
+  if (!EFI_ERROR (Status)) {
+    for (Index = 0; Index < FvProtocolCount; Index++) {
+      Status = gBS->HandleProtocol (
+                      FvHandles[Index],
+                      &gEfiFirmwareVolume2ProtocolGuid,
+                      (VOID **) &Fv
+                      );
+      BmpBufferSize = 0;
+      Status = Fv->ReadSection (
+                     Fv,
+                     (EFI_GUID *)PcdGetPtr(PcdLogoFile),
+                     EFI_SECTION_RAW,
+                     0,
+                    (void **)&Buffer,
+                     &BmpBufferSize,
+                     &AuthenticationStatus
+                     );
+
+      if (!EFI_ERROR (Status)) {
+        *BmpAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Buffer;
+        *BmpSize = (UINT32)BmpBufferSize;
+        Status = EFI_SUCCESS;
+        break;
+      }
+    }
+  } else {
+    Status = EFI_NOT_FOUND;
+  }
+
+  if (FvHandles != NULL) {
+    gBS->FreePool (FvHandles);
+    FvHandles = NULL;
+  }
+
+  return Status;
+}
+
+UINT8 SumBytes(const UINT8* arr, UINTN size) {
+  UINT8 sum = 0;
+  UINTN i;
+  for (i = 0; i < size; ++i) {
+    sum += arr[i];
+  }
+  return sum;
+}
+
+int VerifyAcpiRsdp2Checksums(const void* data) {
+  const UINT8* arr = data;
+  UINTN size = *(const UINT32*)&arr[20];
+  return SumBytes(arr, 20) == 0 && SumBytes(arr, size) == 0;
+}
+
+void SetAcpiRsdp2Checksums(void* data) {
+  UINT8* arr = data;
+  UINTN size = *(const UINT32*)&arr[20];
+  arr[9] = 0;
+  arr[32] = 0;
+  arr[9] = -SumBytes(arr, 20);
+  arr[32] = -SumBytes(arr, size);
+}
+
+int VerifyAcpiSdtChecksum(const void* data) {
+  const UINT8* arr = data;
+  UINTN size = *(const UINT32*)&arr[4];
+  return SumBytes(arr, size) == 0;
+}
+
+void SetAcpiSdtChecksum(void* data) {
+  UINT8* arr = data;
+  UINTN size = *(const UINT32*)&arr[4];
+  arr[9] = 0;
+  arr[9] = -SumBytes(arr, size);
+}
+
+const CHAR16* TmpStr(CHAR8 *src, int length) {
+  static CHAR16 arr[4][16];
+  static int j;
+  CHAR16* dest = arr[j = (j+1) % 4];
+  int i;
+  for (i = 0; i < length && i < 16-1 && src[i]; ++i) {
+    dest[i] = src[i];
+  }
+  dest[i] = 0;
+  return dest;
+}
+
+static UINT32 min(UINT32 first, UINT32 second){
+  if (first < second)
+    return first;
+  return second;
+}
+
+ACPI_SDT_HEADER* CreateXsdt(ACPI_SDT_HEADER* xsdt0, UINTN entries) {
+  ACPI_SDT_HEADER* xsdt = 0;
+  UINT32 xsdt_len = (UINT32)(sizeof(ACPI_SDT_HEADER) + entries * sizeof(UINT64));
+  gBS->AllocatePool(EfiACPIReclaimMemory, xsdt_len, (void**)&xsdt);
+  if (!xsdt) {
+    DEBUG ((EFI_D_INFO, "HackBGRT: Failed to allocate memory for XSDT.\n"));
+    return 0;
+  }
+  ZeroMem(xsdt, xsdt_len);
+  CopyMem(xsdt, xsdt0, min(xsdt0->length, xsdt_len));
+  xsdt->length = xsdt_len;
+  SetAcpiSdtChecksum(xsdt);
+  return xsdt;
+}
+
+static ACPI_BGRT* HandleAcpiTables(ACPI_BGRT* bgrt) {
+  int i;
+
+  for (i = 0; i < gST->NumberOfTableEntries; i++) {
+    EFI_GUID* vendor_guid = &gST->ConfigurationTable[i].VendorGuid;
+    ACPI_20_RSDP *rsdp;
+    ACPI_SDT_HEADER *xsdt;
+    UINT64 *entry_arr;
+    UINT32 entry_arr_length;
+
+    if (!CompareGuid(vendor_guid, &gEfiAcpiTableGuid) && !CompareGuid(vendor_guid, &gEfiAcpi20TableGuid)) {
+      continue;
+    }
+    rsdp = (ACPI_20_RSDP *) gST->ConfigurationTable[i].VendorTable;
+    if (CompareMem(rsdp->signature, "RSD PTR ", 8) != 0 || rsdp->revision < 2 || !VerifyAcpiRsdp2Checksums(rsdp)) {
+      continue;
+    }
+    DEBUG ((EFI_D_INFO, "RSDP: revision = %d, OEM ID = %s\n", rsdp->revision, TmpStr(rsdp->oem_id, 6)));
+
+    xsdt = (ACPI_SDT_HEADER *) (UINTN) rsdp->xsdt_address;
+    if (!xsdt || CompareMem(xsdt->signature, "XSDT", 4) != 0 || !VerifyAcpiSdtChecksum(xsdt)) {
+      DEBUG ((EFI_D_INFO, "* XSDT: missing or invalid\n"));
+      continue;
+    }
+    entry_arr = (UINT64*)&xsdt[1];
+    entry_arr_length = (xsdt->length - sizeof(*xsdt)) / sizeof(UINT64);
+
+    DEBUG ((EFI_D_INFO, "* XSDT: OEM ID = %s, entry count = %d\n", TmpStr(xsdt->oem_id, 6), entry_arr_length));
+
+    if (bgrt) {
+      DEBUG ((EFI_D_INFO, " - Adding missing BGRT.\n"));
+      xsdt = CreateXsdt(xsdt, entry_arr_length + 1);
+      entry_arr = (UINT64*)&xsdt[1];
+      entry_arr[entry_arr_length++] = (UINTN) bgrt;
+      rsdp->xsdt_address = (UINTN) xsdt;
+      SetAcpiRsdp2Checksums(rsdp);
+    }
+    SetAcpiSdtChecksum(xsdt);
+  }
+  return bgrt;
+}
+
+VOID
+AddBGRT (
+  VOID
+  )
+{
+  EFI_STATUS                         Status;
+  ACPI_BGRT                          *bgrt;
+  EFI_GRAPHICS_OUTPUT_PROTOCOL       *GraphicsOutput;
+  EFI_PHYSICAL_ADDRESS               BmpAddress;
+  UINT32                             BmpSize;
+  BMP_IMAGE_HEADER                   *BmpHeader;
+  const char data[0x38] =
+    "BGRT" "\x38\x00\x00\x00" "\x00" "\xd6" "INTEL " "    EDK2"
+    "\x20\x17\x00\x00" "PTL " "\x02\x00\x00\x00"
+    "\x01\x00" "\x00" "\x00";
+
+  BmpAddress = 0;
+
+  DEBUG ((EFI_D_INFO, "HackBGRT Start\n"));
+
+  Status = gBS->HandleProtocol (
+    gST->ConsoleOutHandle,
+    &gEfiGraphicsOutputProtocolGuid,
+    (VOID**)&GraphicsOutput
+    );
+
+  // Replace missing = allocate new.
+  gBS->AllocatePool(EfiACPIReclaimMemory, sizeof(*bgrt), (void**)&bgrt);
+  if (!bgrt) {
+    DEBUG ((EFI_D_INFO, "HackBGRT MEM ERR\n"));
+    return;
+  }
+
+  DEBUG ((EFI_D_INFO, "HackBGRT Load Bmp\n"));
+  Status = LoadBmp(&BmpAddress, &BmpSize);
+  if (EFI_ERROR(Status)){
+    DEBUG ((EFI_D_INFO, "HackBGRT BMP Load ERR\n"));
+    return;
+  }
+
+  DEBUG ((EFI_D_INFO, "HackBGRT Set Table; BMP Size: %d\n", BmpSize));
+  // Clear the BGRT.
+  CopyMem(bgrt, data, sizeof(data));
+
+  if (GraphicsOutput != NULL && GraphicsOutput->Mode != NULL && GraphicsOutput->Mode->Info != NULL) 
+  {
+      BmpHeader = (BMP_IMAGE_HEADER *)BmpAddress;
+      bgrt->image_address = (UINTN)BmpAddress;
+      bgrt->image_offset_x = (GraphicsOutput->Mode->Info->HorizontalResolution - BmpHeader->PixelWidth) / 2;
+      bgrt->image_offset_y = ((GraphicsOutput->Mode->Info->VerticalResolution * 382) / 1000) -
+                             (BmpHeader->PixelHeight / 2);
+      DEBUG ((EFI_D_INFO, "HackBGRT Set checksum\n"));
+      SetAcpiSdtChecksum(bgrt);
+      DEBUG ((EFI_D_INFO, "HackBGRT Add Table\n"));
+      HandleAcpiTables(bgrt);
+  } else {
+      DEBUG ((EFI_D_INFO, "HackBGRT no display connected, skip adding table\n"));
+  }
+}

MdeModulePkg/Library/BootLogoLib/BootLogoLib.c

@@ -175,7 +175,7 @@ BootLogoEnableLogo (
       break;
     case EdkiiPlatformLogoDisplayAttributeCenter:
       DestX = (SizeOfX - Image.Width) / 2;
-      DestY = (SizeOfY - Image.Height) / 2;
+      DestY = (SizeOfY * 382) / 1000 - Image.Height / 2;
       break;
     case EdkiiPlatformLogoDisplayAttributeCenterRight:
       DestX = SizeOfX - Image.Width;

MdeModulePkg/Library/BootLogoLib/BootLogoLib.inf

@@ -24,6 +24,7 @@
 #
 
 [Sources]
+  Bgrt.c
   BootLogoLib.c
 
 [Packages]
@@ -48,5 +49,12 @@
   gEfiUserManagerProtocolGuid                   ## CONSUMES
   gEdkiiPlatformLogoProtocolGuid                ## CONSUMES
 
+[Guids]
+  gEfiAcpiTableGuid                             ## CONSUMES ## GUID
+  gEfiAcpi20TableGuid                           ## CONSUMES ## GUID
+
 [FeaturePcd]
   gEfiMdePkgTokenSpaceGuid.PcdUgaConsumeSupport ## CONSUMES
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdLogoFile    ## CONSUMES

MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenance.c

@@ -722,6 +722,7 @@ BootMaintExtractConfig (
     *Progress = Request + StrLen (Request);
   }
 
+  DEBUG ((EFI_D_INFO, "%a complete: %r\n", __FUNCTION__, Status));
   return Status;
 }
 
@@ -1033,6 +1034,7 @@ BootMaintRouteConfig (
   //
   CopyMem (OldBmmData, NewBmmData, sizeof (BMM_FAKE_NV_DATA));
 
+  DEBUG ((EFI_D_INFO, "%a complete: %r\n", __FUNCTION__, Status));
   return EFI_SUCCESS;
 
 Exit:
@@ -1093,6 +1095,8 @@ BootMaintCallback (
   Private        = BMM_CALLBACK_DATA_FROM_THIS (This);
 
   if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {
+    DEBUG ((EFI_D_INFO, "EFI_BROWSER_ACTION_FORM_OPEN: 0x%0X\n", QuestionId));
+
     if (QuestionId == KEY_VALUE_TRIGGER_FORM_OPEN_ACTION) {
       if (!mFirstEnterBMMForm) {
         //
@@ -1104,7 +1108,9 @@ BootMaintCallback (
         // 1. Update the menus (including legacy munu) show in BootMiantenanceManager page.
         // 2. Re-scan the BootOption menus (including the legacy boot option).
         //
-        CustomizeMenus ();
+        //CustomizeMenus ();
+        UpdatePageId (Private, FORM_BOOT_CHG_ID);
+        UpdatePageBody (FORM_BOOT_CHG_ID, Private);
         EfiBootManagerRefreshAllBootOption ();
         BOpt_GetBootOptions (Private);
         mFirstEnterBMMForm = TRUE;
@@ -1119,6 +1125,8 @@ BootMaintCallback (
   HiiGetBrowserData (&mBootMaintGuid, mBootMaintStorageName, sizeof (BMM_FAKE_NV_DATA), (UINT8 *) CurrentFakeNVMap);
 
   if (Action == EFI_BROWSER_ACTION_CHANGING) {
+    DEBUG ((EFI_D_INFO, "EFI_BROWSER_ACTION_CHANGING: 0x%0X\n", QuestionId));
+
     if (Value == NULL) {
       return EFI_INVALID_PARAMETER;
     }
@@ -1204,6 +1212,8 @@ BootMaintCallback (
       ChooseFile (NULL, L".efi", BootFromFile, &File);
     }
   } else if (Action == EFI_BROWSER_ACTION_CHANGED) {
+    DEBUG ((EFI_D_INFO, "EFI_BROWSER_ACTION_CHANGED: 0x%0X\n", QuestionId));
+
     if ((Value == NULL) || (ActionRequest == NULL)) {
       return EFI_INVALID_PARAMETER;
     }
@@ -1243,6 +1253,11 @@ BootMaintCallback (
       CurrentFakeNVMap->DriverOptionChanged = TRUE;
     }
 
+    if (QuestionId == BOOT_OPTION_ORDER_QUESTION_ID) {
+        // Save BootOrder on list update
+        *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;
+    }
+
     if ((QuestionId >= BOOT_OPTION_DEL_QUESTION_ID) && (QuestionId < BOOT_OPTION_DEL_QUESTION_ID + MAX_MENU_NUMBER)) {
       if (Value->b){
         //
@@ -1306,6 +1321,7 @@ BootMaintCallback (
   //
   HiiSetBrowserData (&mBootMaintGuid, mBootMaintStorageName, sizeof (BMM_FAKE_NV_DATA), (UINT8 *) CurrentFakeNVMap, NULL);
 
+  DEBUG ((EFI_D_INFO, "%a complete: %r\n", __FUNCTION__, EFI_SUCCESS));
   return EFI_SUCCESS;
 }
 
@@ -1630,6 +1646,28 @@ BmmInitialBootModeInfo (
   mBmmModeInitialized           = TRUE;
 }
 
+STATIC
+EFI_STATUS
+UnregisterHotKeys(VOID)
+{
+  EFI_STATUS Status;
+  EFI_INPUT_KEY HotKey;
+  EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL *FormBrowserEx2;
+
+  Status = gBS->LocateProtocol (&gEdkiiFormBrowserEx2ProtocolGuid, NULL, (VOID **) &FormBrowserEx2);
+  if (!EFI_ERROR (Status)) {
+    HotKey.UnicodeChar = CHAR_NULL;
+
+    HotKey.ScanCode = SCAN_F9;
+    FormBrowserEx2->RegisterHotKey(&HotKey, BROWSER_ACTION_UNREGISTER, 0, NULL);
+
+    HotKey.ScanCode = SCAN_F10;
+    FormBrowserEx2->RegisterHotKey(&HotKey, BROWSER_ACTION_UNREGISTER, 0, NULL);
+  }
+
+  return Status;
+}
+
 /**
 
   Install Boot Maintenance Manager Menu driver.
@@ -1705,8 +1743,8 @@ BootMaintenanceManagerUiLibConstructor (
 
   mBmmCallbackInfo->MenuEntry     = (BM_MENU_ENTRY *) Ptr;
 
-  mBmmCallbackInfo->BmmPreviousPageId  = FORM_MAIN_ID;
+  mBmmCallbackInfo->BmmPreviousPageId  = FORM_BOOT_CHG_ID;
-  mBmmCallbackInfo->BmmCurrentPageId   = FORM_MAIN_ID;
+  mBmmCallbackInfo->BmmCurrentPageId   = FORM_BOOT_CHG_ID;
 
   InitAllMenu (mBmmCallbackInfo);
 
@@ -1718,6 +1756,11 @@ BootMaintenanceManagerUiLibConstructor (
 
   BmmInitialBootModeInfo();
 
+  //
+  // Remove the F9 and F10 hotkeys
+  //
+  UnregisterHotKeys();
+
   return EFI_SUCCESS;
 }
 

MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManager.vfr

@@ -19,19 +19,28 @@ formset
     name = BmmData,
     guid = BOOT_MAINT_FORMSET_GUID;
 
+  form formid = FORM_BOOT_CHG_ID,
+    title = STRING_TOKEN(STR_FORM_BOOT_CHG_TITLE);
+
+    //
+    // Add this invisible text in order to indicate enter Boot Maintenance Manager form.
+    // To trigger the form open action.
+    //
+    suppressif TRUE;
+      text
+        help  = STRING_TOKEN(STR_NONE),
+        text  = STRING_TOKEN(STR_NONE),
+        flags = INTERACTIVE,
+        key   = KEY_VALUE_TRIGGER_FORM_OPEN_ACTION;
+    endif;
+
+    label FORM_BOOT_CHG_ID;
+    label LABEL_END;
+
+  endform;
+
   form formid = FORM_MAIN_ID,
        title = STRING_TOKEN(STR_FORM_MAIN_TITLE);
-       //
-       // Add this invisible text in order to indicate enter Boot Maintenance Manager form.
-       // To trigger the form open action.
-       //
-       suppressif TRUE;
-          text
-              help  = STRING_TOKEN(STR_NONE),
-              text  = STRING_TOKEN(STR_NONE),
-              flags = INTERACTIVE,
-              key   = KEY_VALUE_TRIGGER_FORM_OPEN_ACTION;
-       endif;
 
     label LABEL_FORM_MAIN_START;
     //
@@ -148,14 +157,6 @@ formset
        label LABEL_END;
   endform;
 
-  form formid = FORM_BOOT_CHG_ID,
-       title = STRING_TOKEN(STR_FORM_BOOT_CHG_TITLE);
-
-       label FORM_BOOT_CHG_ID;
-       label LABEL_END;
-
-  endform;
-
   form formid = FORM_DRV_ADD_ID,
        title = STRING_TOKEN(STR_FORM_DRV_ADD_TITLE);
 

MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerStrings.uni

@@ -17,11 +17,11 @@
                                        #language fr-FR  "NONE"
 #string STR_MISSING_STRING             #language en-US  "Missing String"
                                        #language fr-FR  "Missing String"
-#string STR_FORM_MAIN_TITLE            #language en-US  "Boot Maintenance Manager"
+#string STR_FORM_MAIN_TITLE            #language en-US  "Change Boot Order"
                                        #language fr-FR  "Boot Maintenance Manager"
 #string STR_FORM_BOOT_SETUP_TITLE      #language en-US  "Boot Options"
                                        #language fr-FR  "Boot Options"
-#string STR_BOOT_MAINT_MANAGER_HELP    #language en-US  "This selection will take you to the Boot Maintenance Manager"
+#string STR_BOOT_MAINT_MANAGER_HELP    #language en-US  "Change the order of boot entries"
                                        #language fr-FR  "This selection will take you to the Boot Maintenance Manager"
 #string STR_FORM_BOOT_SETUP_HELP       #language en-US  "Modify system boot options"
                                        #language fr-FR  "Modify system boot options"
@@ -251,7 +251,7 @@
                                        #language fr-FR  "Boot system from a file or device"
 #string STR_OPTIONAL_DATA              #language en-US  "Input Optional Data"
                                        #language fr-FR  "Input Optional Data"
-#string STR_CHANGE_ORDER               #language en-US  "Change the order"
+#string STR_CHANGE_ORDER               #language en-US  "Change Boot Order"
                                        #language fr-FR  "Change the order"
 #string STR_BOOT_LEGACY                #language en-US  "Boot Legacy System"
                                        #language fr-FR  "Boot Legacy System"

MdeModulePkg/Library/BootMaintenanceManagerUiLib/UpdatePage.c

@@ -115,36 +115,36 @@ UpdatePageEnd (
   //
   // Create the "Apply changes" and "Discard changes" tags.
   //
-  if (CallbackData->BmmAskSaveOrNot) {
+  //if (CallbackData->BmmAskSaveOrNot) {
-    HiiCreateSubTitleOpCode (
+  //  HiiCreateSubTitleOpCode (
-      mStartOpCodeHandle,
+  //    mStartOpCodeHandle,
-      STRING_TOKEN (STR_NULL_STRING),
+  //    STRING_TOKEN (STR_NULL_STRING),
-      0,
+  //    0,
-      0,
+  //    0,
-      0
+  //    0
-      );
+  //    );
 
-    HiiCreateActionOpCode (
+  //  HiiCreateActionOpCode (
-      mStartOpCodeHandle,
+  //    mStartOpCodeHandle,
-      KEY_VALUE_SAVE_AND_EXIT,
+  //    KEY_VALUE_SAVE_AND_EXIT,
-      STRING_TOKEN (STR_SAVE_AND_EXIT),
+  //    STRING_TOKEN (STR_SAVE_AND_EXIT),
-      STRING_TOKEN (STR_NULL_STRING),
+  //    STRING_TOKEN (STR_NULL_STRING),
-      EFI_IFR_FLAG_CALLBACK,
+  //    EFI_IFR_FLAG_CALLBACK,
-      0
+  //    0
-      );
+  //    );
-  }
+  //}
 
   //
   // Ensure user can return to the main page.
   //
-  HiiCreateActionOpCode (
+  //HiiCreateActionOpCode (
-    mStartOpCodeHandle,
+  //  mStartOpCodeHandle,
-    KEY_VALUE_NO_SAVE_AND_EXIT,
+  //  KEY_VALUE_NO_SAVE_AND_EXIT,
-    STRING_TOKEN (STR_NO_SAVE_AND_EXIT),
+  //  STRING_TOKEN (STR_NO_SAVE_AND_EXIT),
-    STRING_TOKEN (STR_NULL_STRING),
+  //  STRING_TOKEN (STR_NULL_STRING),
-    EFI_IFR_FLAG_CALLBACK,
+  //  EFI_IFR_FLAG_CALLBACK,
-    0
+  //  0
-    );
+  //  );
 
   HiiUpdateForm (
     CallbackData->BmmHiiHandle,
@@ -642,7 +642,7 @@ UpdateOrderPage (
       VarOffset,                                   // Offset in Buffer Storage
       STRING_TOKEN (STR_CHANGE_ORDER),             // Question prompt text
       STRING_TOKEN (STR_CHANGE_ORDER),             // Question help text
-      0,                                           // Question flag
+      EFI_IFR_FLAG_CALLBACK,                       // Question flag
       0,                                           // Ordered list flag, e.g. EFI_IFR_UNIQUE_SET
       EFI_IFR_TYPE_NUM_SIZE_32,                    // Data type of Question value
       100,                                         // Maximum container
@@ -1143,8 +1143,8 @@ UpdatePageId (
     NewPageId = FORM_CON_COM_SETUP_ID;
   }
 
-  if ((NewPageId > 0) && (NewPageId < MAXIMUM_FORM_ID)) {
+  //if ((NewPageId > 0) && (NewPageId < MAXIMUM_FORM_ID)) {
-    Private->BmmPreviousPageId  = Private->BmmCurrentPageId;
+  //  Private->BmmPreviousPageId  = Private->BmmCurrentPageId;
-    Private->BmmCurrentPageId   = NewPageId;
+  //  Private->BmmCurrentPageId   = NewPageId;
-  }
+  //}
 }

MdeModulePkg/Library/BootMaintenanceManagerUiLib/Variable.c

@@ -631,6 +631,7 @@ Var_UpdateBootOrder (
   BOpt_FreeMenu (&BootOptionMenu);
   BOpt_GetBootOptions (CallbackData);
 
+  DEBUG ((EFI_D_INFO, "Updated BootOrder: %r\n", Status));
   return Status;
 
 }

MdeModulePkg/Library/BootManagerUiLib/BootManager.c

@@ -8,6 +8,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 #include "BootManager.h"
 
+#include <Protocol/BlockIo.h>
+
 UINT16             mKeyInput;
 EFI_GUID           mBootManagerGuid = BOOT_MANAGER_FORMSET_GUID;
 //
@@ -27,6 +29,10 @@ UINT32    mBmSetupVerticalResolution     = 0;
 
 BOOLEAN   mBmModeInitialized             = FALSE;
 
+STATIC EFI_EVENT mBmRefreshEvent;
+STATIC CONST EFI_GUID mBmRefreshGuid = BOOT_MANAGER_REFRESH_GUID;
+STATIC VOID *mBlockIoRegistration; // Unused
+
 CHAR16             *mDeviceTypeStr[] = {
   L"Legacy BEV",
   L"Legacy Floppy",
@@ -484,22 +490,10 @@ UpdateBootManager (
   BOOLEAN                       IsLegacyOption;
   BOOLEAN                       NeedEndOp;
   UINTN                         MaxLen;
+  UINTN                         OptionCount = 0;
 
   DeviceType = (UINT16) -1;
 
-  //
-  // for better user experience
-  // 1. User changes HD configuration (e.g.: unplug HDD), here we have a chance to remove the HDD boot option
-  // 2. User enables/disables UEFI PXE, here we have a chance to add/remove EFI Network boot option
-  //
-  EfiBootManagerRefreshAllBootOption ();
-
-  //
-  // BdsDxe doesn't group the legacy boot options for the same device type
-  // It's UI's choice.
-  //
-  GroupMultipleLegacyBootOption4SameType ();
-
   BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);
 
   HiiHandle = gBootManagerPrivate.HiiHandle;
@@ -526,6 +520,7 @@ UpdateBootManager (
   EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
   EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
   EndLabel->Number       = LABEL_BOOT_OPTION_END;
+
   mKeyInput = 0;
   NeedEndOp = FALSE;
   for (Index = 0; Index < BootOptionCount; Index++) {
@@ -541,6 +536,8 @@ UpdateBootManager (
       continue;
     }
 
+    OptionCount++;
+
     //
     // Group the legacy boot option in the sub title created dynamically
     //
@@ -596,6 +593,10 @@ UpdateBootManager (
       );
   }
 
+  if (OptionCount == 0) {
+    HiiCreateSubTitleOpCode (StartOpCodeHandle, STRING_TOKEN (STR_NO_BOOTABLE_MEDIA), 0, 0, 0);
+  }
+
   if (NeedEndOp) {
     HiiCreateEndOpCode (StartOpCodeHandle);
   }
@@ -787,7 +788,7 @@ BootManagerCallback (
 {
   EFI_BOOT_MANAGER_LOAD_OPTION *BootOption;
   UINTN                        BootOptionCount;
-  EFI_INPUT_KEY                Key;
+  //EFI_INPUT_KEY                Key;
 
   if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {
     //
@@ -831,19 +832,39 @@ BootManagerCallback (
   EfiBootManagerBoot (&BootOption[QuestionId - 1]);
   BmSetConsoleMode (TRUE);
 
-  if (EFI_ERROR (BootOption[QuestionId - 1].Status)) {
+  //if (EFI_ERROR (BootOption[QuestionId - 1].Status)) {
-    gST->ConOut->OutputString (
+  //  gST->ConOut->OutputString (
-                  gST->ConOut,
+  //                gST->ConOut,
-                  HiiGetString (gBootManagerPrivate.HiiHandle, STRING_TOKEN (STR_ANY_KEY_CONTINUE), NULL)
+  //                HiiGetString (gBootManagerPrivate.HiiHandle, STRING_TOKEN (STR_ANY_KEY_CONTINUE), NULL)
-                  );
+  //                );
-    gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+  //  gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
-  }
+  //}
 
   EfiBootManagerFreeLoadOptions (BootOption, BootOptionCount);
 
   return EFI_SUCCESS;
 }
 
+STATIC
+VOID
+EFIAPI
+RefreshBootOptions(
+  IN  EFI_EVENT   Event,
+  IN  VOID        *Context
+  )
+{
+  EFI_TPL OldTpl = gBS->RaiseTPL(TPL_CALLBACK);
+
+  EfiBootManagerRefreshAllBootOption();
+
+  // BdsDxe doesn't group the legacy boot options for the same device type. It's UI's choice.
+  GroupMultipleLegacyBootOption4SameType();
+
+  UpdateBootManager();
+
+  gBS->RestoreTPL (OldTpl);
+}
+
 /**
 
   Install Boot Manager Menu driver.
@@ -892,6 +913,23 @@ BootManagerUiLibConstructor (
 
   BmInitialBootModeInfo ();
 
+  Status = gBS->CreateEventEx(
+      EVT_NOTIFY_SIGNAL,
+      TPL_CALLBACK,
+      RefreshBootOptions,
+      NULL,
+      &mBmRefreshGuid,
+      &mBmRefreshEvent
+      );
+  ASSERT_EFI_ERROR(Status);
+
+  Status = gBS->RegisterProtocolNotify (
+      &gEfiBlockIoProtocolGuid,
+      mBmRefreshEvent,
+      &mBlockIoRegistration
+      );
+  ASSERT_EFI_ERROR (Status);
+
   return EFI_SUCCESS;
 }
 
@@ -912,6 +950,8 @@ BootManagerUiLibDestructor (
 {
   EFI_STATUS    Status;
 
+  gBS->CloseEvent(mBmRefreshEvent);
+
   Status = gBS->UninstallMultipleProtocolInterfaces (
                   gBootManagerPrivate.DriverHandle,
                   &gEfiDevicePathProtocolGuid,

MdeModulePkg/Library/BootManagerUiLib/BootManager.h

@@ -46,7 +46,12 @@ typedef struct {
   0x847bc3fe, 0xb974, 0x446d, {0x94, 0x49, 0x5a, 0xd5, 0x41, 0x2e, 0x99, 0x3b} \
   }
 
-#define BOOT_MANAGER_FORM_ID     0x1000
+#define BOOT_MANAGER_REFRESH_GUID \
+  { \
+    0x7648C827, 0xBE32, 0x44D2, { 0xA1, 0x33, 0xF1, 0x7F, 0x93, 0x76, 0xC7, 0x00 } \
+  }
+
+#define BOOT_MANAGER_FORM_ID     0x1030
 
 #define LABEL_BOOT_OPTION        0x00
 #define LABEL_BOOT_OPTION_END    0x01

MdeModulePkg/Library/BootManagerUiLib/BootManagerStrings.uni

@@ -17,20 +17,9 @@
 
 /=#
 #langdef   en-US "English"
-#langdef   fr-FR "Français"
 
-#string STR_BM_BANNER                  #language en-US  "Boot Manager"
+#string STR_BM_BANNER                  #language en-US  "One Time Boot"
-                                       #language fr-FR  "Boot Manager"
+#string STR_BOOT_MANAGER_HELP          #language en-US  "Boot an entry one time"
-#string STR_BOOT_MANAGER_HELP          #language en-US  "This selection will take you to the Boot Manager"
-                                       #language fr-FR  "This selection will take you to the Boot Manager"
-#string STR_HELP_FOOTER                #language en-US  "Use the <↑> and <↓> keys to choose a boot option, the <Enter> key to select a boot option, and the <Esc> key to exit the Boot Manager Menu."
-                                       #language fr-FR  "<↑> pour <↓> changer l'option, <ENTRER> choisir une option, <ESC> pour sortir"
-#string STR_AND                        #language en-US  " and "
-                                       #language fr-FR  " et "
-#string STR_BOOT_OPTION_BANNER         #language en-US  "Boot Manager Menu"
-                                       #language fr-FR  "le Menu d'Option de Botte"
 #string STR_ANY_KEY_CONTINUE           #language en-US  "Press any key to continue..."
-                                       #language fr-FR  "Appuie n'importe quelle pour continuer..."
+#string STR_NO_BOOTABLE_MEDIA          #language en-US  "No bootable media found"
-#string STR_LAST_STRING                #language en-US  ""
+#string STR_EMPTY_STRING               #language en-US  ""
-                                       #language fr-FR  ""
-

MdeModulePkg/Library/BootManagerUiLib/BootManagerUiLib.inf

@@ -51,6 +51,7 @@
   gEfiHiiConfigAccessProtocolGuid               ## CONSUMES
   gEfiDevicePathToTextProtocolGuid              ## CONSUMES
   gEdkiiFormBrowserEx2ProtocolGuid              ## CONSUMES
+  gEfiBlockIoProtocolGuid
 
 [FeaturePcd]
 

MdeModulePkg/Library/BootManagerUiLib/BootManagerVfr.Vfr

@@ -7,8 +7,9 @@
 //
 //**/
 #define FORMSET_GUID  { 0x847bc3fe, 0xb974, 0x446d, 0x94, 0x49, 0x5a, 0xd5, 0x41, 0x2e, 0x99, 0x3b }
+#define BOOT_MANAGER_REFRESH_GUID { 0x7648C827, 0xBE32, 0x44D2, { 0xA1, 0x33, 0xF1, 0x7F, 0x93, 0x76, 0xC7, 0x00 }}
 
-#define BOOT_MANAGER_FORM_ID     0x1000
+#define BOOT_MANAGER_FORM_ID     0x1030
 
 #define LABEL_BOOT_OPTION        0x00
 #define LABEL_BOOT_OPTION_END    0x01
@@ -20,22 +21,19 @@ formset
   classguid = gEfiIfrFrontPageGuid,
 
   form formid = BOOT_MANAGER_FORM_ID,
-       title  = STRING_TOKEN(STR_BM_BANNER);
+    title  = STRING_TOKEN(STR_BM_BANNER);
-
+    refreshguid = BOOT_MANAGER_REFRESH_GUID;
-    subtitle text = STRING_TOKEN(STR_LAST_STRING);
-    subtitle text = STRING_TOKEN(STR_BOOT_OPTION_BANNER);
-    subtitle text = STRING_TOKEN(STR_LAST_STRING);
 
     //
     //Add this invisable text in order to indicate enter Boot Manager form.
     //
     suppressif TRUE;
-          text
+      text
-              help  = STRING_TOKEN(STR_LAST_STRING ),
+        help  = STRING_TOKEN(STR_EMPTY_STRING),
-              text  = STRING_TOKEN(STR_LAST_STRING ),
+        text  = STRING_TOKEN(STR_EMPTY_STRING),
-              flags = INTERACTIVE,
+        flags = INTERACTIVE,
-              key   = 0x1212;
+        key   = 0x1212;
-     endif;
+    endif;
 
     //
     // This is where we will dynamically add choices for the Boot Manager
@@ -43,9 +41,6 @@ formset
     label LABEL_BOOT_OPTION;
     label LABEL_BOOT_OPTION_END;
 
-    subtitle text = STRING_TOKEN(STR_LAST_STRING);
-    subtitle text = STRING_TOKEN(STR_HELP_FOOTER);
-
   endform;
 
 endformset;

MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c

@@ -1779,6 +1779,8 @@ EfiBootManagerBoot (
   UINTN                     FileSize;
   EFI_BOOT_LOGO_PROTOCOL    *BootLogo;
   EFI_EVENT                 LegacyBootEvent;
+  EFI_INPUT_KEY             Key;
+  UINTN                     Index;
 
   if (BootOption == NULL) {
     return;
@@ -1914,6 +1916,19 @@ EfiBootManagerBoot (
         BmDestroyRamDisk (RamDiskDevicePath);
         FreePool (RamDiskDevicePath);
       }
+
+      if (gST->ConIn != NULL) {
+        gST->ConOut->ClearScreen (gST->ConOut);
+        AsciiPrint (
+            "Boot Failed. %s\n"
+            "Press any key to continue...\n",
+            BootOption->Description);
+        Status = gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &Index);
+        ASSERT_EFI_ERROR (Status);
+        ASSERT (Index == 0);
+        while (!EFI_ERROR (gST->ConIn->ReadKeyStroke (gST->ConIn, &Key))) {}
+      }
+
       return;
     }
   }
@@ -2085,6 +2100,322 @@ BmMatchPartitionDevicePathNode (
   return FALSE;
 }
 
+/**
+  Get the headers (dos, image, optional header) from an image
+
+  @param  Device                SimpleFileSystem device handle
+  @param  FileName              File name for the image
+  @param  DosHeader             Pointer to dos header
+  @param  Hdr                   The buffer in which to return the PE32, PE32+, or TE header.
+
+  @retval EFI_SUCCESS           Successfully get the machine type.
+  @retval EFI_NOT_FOUND         The file is not found.
+  @retval EFI_LOAD_ERROR        File is not a valid image file.
+
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+BdsLibGetImageHeader (
+  IN  EFI_HANDLE                  Device,
+  IN  CHAR16                      *FileName,
+  OUT EFI_IMAGE_DOS_HEADER        *DosHeader,
+  OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr
+  )
+{
+  EFI_STATUS                       Status;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *Volume;
+  EFI_FILE_HANDLE                  Root;
+  EFI_FILE_HANDLE                  ThisFile;
+  UINTN                            BufferSize;
+  UINT64                           FileSize;
+  EFI_FILE_INFO                    *Info;
+
+  Root     = NULL;
+  ThisFile = NULL;
+  //
+  // Handle the file system interface to the device
+  //
+  Status = gBS->HandleProtocol (
+                  Device,
+                  &gEfiSimpleFileSystemProtocolGuid,
+                  (VOID *) &Volume
+                  );
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+
+  Status = Volume->OpenVolume (
+                     Volume,
+                     &Root
+                     );
+  if (EFI_ERROR (Status)) {
+    Root = NULL;
+    goto Done;
+  }
+  ASSERT (Root != NULL);
+  Status = Root->Open (Root, &ThisFile, FileName, EFI_FILE_MODE_READ, 0);
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+  ASSERT (ThisFile != NULL);
+
+  //
+  // Get file size
+  //
+  BufferSize  = SIZE_OF_EFI_FILE_INFO + 200;
+  do {
+    Info   = NULL;
+    Status = gBS->AllocatePool (EfiBootServicesData, BufferSize, (VOID **) &Info);
+    if (EFI_ERROR (Status)) {
+      goto Done;
+    }
+    Status = ThisFile->GetInfo (
+                         ThisFile,
+                         &gEfiFileInfoGuid,
+                         &BufferSize,
+                         Info
+                         );
+    if (!EFI_ERROR (Status)) {
+      break;
+    }
+    if (Status != EFI_BUFFER_TOO_SMALL) {
+      FreePool (Info);
+      goto Done;
+    }
+    FreePool (Info);
+  } while (TRUE);
+
+  FileSize = Info->FileSize;
+  FreePool (Info);
+
+  //
+  // Read dos header
+  //
+  BufferSize = sizeof (EFI_IMAGE_DOS_HEADER);
+  Status = ThisFile->Read (ThisFile, &BufferSize, DosHeader);
+  if (EFI_ERROR (Status) ||
+      BufferSize < sizeof (EFI_IMAGE_DOS_HEADER) ||
+      FileSize <= DosHeader->e_lfanew ||
+      DosHeader->e_magic != EFI_IMAGE_DOS_SIGNATURE) {
+    Status = EFI_LOAD_ERROR;
+    goto Done;
+  }
+
+  //
+  // Move to PE signature
+  //
+  Status = ThisFile->SetPosition (ThisFile, DosHeader->e_lfanew);
+  if (EFI_ERROR (Status)) {
+    Status = EFI_LOAD_ERROR;
+    goto Done;
+  }
+
+  //
+  // Read and check PE signature
+  //
+  BufferSize = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);
+  Status = ThisFile->Read (ThisFile, &BufferSize, Hdr.Pe32);
+  if (EFI_ERROR (Status) ||
+      BufferSize < sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION) ||
+      Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {
+    Status = EFI_LOAD_ERROR;
+    goto Done;
+  }
+
+  //
+  // Check PE32 or PE32+ magic
+  //
+  if (Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC &&
+      Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
+    Status = EFI_LOAD_ERROR;
+    goto Done;
+  }
+
+ Done:
+  if (ThisFile != NULL) {
+    ThisFile->Close (ThisFile);
+  }
+  if (Root != NULL) {
+    Root->Close (Root);
+  }
+  return Status;
+}
+
+/**
+  Return the bootable media handle.
+  First, check the device is connected
+  Second, check whether the device path point to a device which support SimpleFileSystemProtocol,
+  Third, detect the the default boot file in the Media, and return the removable Media handle.
+
+  @param  DevicePath  Device Path to a  bootable device
+
+  @return  The bootable media handle. If the media on the DevicePath is not bootable, NULL will return.
+
+**/
+EFI_HANDLE
+EFIAPI
+BdsLibGetBootableHandle (
+  IN  EFI_DEVICE_PATH_PROTOCOL      *DevicePath
+  )
+{
+  EFI_STATUS                      Status;
+  EFI_TPL                         OldTpl;
+  EFI_DEVICE_PATH_PROTOCOL        *UpdatedDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL        *DupDevicePath;
+  EFI_HANDLE                      Handle;
+  EFI_BLOCK_IO_PROTOCOL           *BlockIo;
+  VOID                            *Buffer;
+  EFI_DEVICE_PATH_PROTOCOL        *TempDevicePath;
+  UINTN                           Size;
+  UINTN                           TempSize;
+  EFI_HANDLE                      ReturnHandle;
+  EFI_HANDLE                      *SimpleFileSystemHandles;
+
+  UINTN                           NumberSimpleFileSystemHandles;
+  UINTN                           Index;
+  EFI_IMAGE_DOS_HEADER            DosHeader;
+  EFI_IMAGE_OPTIONAL_HEADER_UNION       HdrData;
+  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr;
+
+  UpdatedDevicePath = DevicePath;
+
+  //
+  // Enter to critical section to protect the acquired BlockIo instance
+  // from getting released due to the USB mass storage hotplug event
+  //
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+  //
+  // Check whether the device is connected
+  //
+  Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &UpdatedDevicePath, &Handle);
+  if (EFI_ERROR (Status)) {
+    //
+    // Skip the case that the boot option point to a simple file protocol which does not consume block Io protocol,
+    //
+    Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &UpdatedDevicePath, &Handle);
+    if (EFI_ERROR (Status)) {
+      //
+      // Fail to find the proper BlockIo and simple file protocol, maybe because device not present, we need to connect it firstly
+      //
+      UpdatedDevicePath = DevicePath;
+      Status            = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);
+      gBS->ConnectController (Handle, NULL, NULL, TRUE);
+    }
+  } else {
+    //
+    // For removable device boot option, its contained device path only point to the removable device handle,
+    // should make sure all its children handles (its child partion or media handles) are created and connected.
+    //
+    gBS->ConnectController (Handle, NULL, NULL, TRUE);
+    //
+    // Get BlockIo protocol and check removable attribute
+    //
+    Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo);
+    ASSERT_EFI_ERROR (Status);
+
+    //
+    // Issue a dummy read to the device to check for media change.
+    // When the removable media is changed, any Block IO read/write will
+    // cause the BlockIo protocol be reinstalled and EFI_MEDIA_CHANGED is
+    // returned. After the Block IO protocol is reinstalled, subsequent
+    // Block IO read/write will success.
+    //
+    Buffer = AllocatePool (BlockIo->Media->BlockSize);
+    if (Buffer != NULL) {
+      BlockIo->ReadBlocks (
+               BlockIo,
+               BlockIo->Media->MediaId,
+               0,
+               BlockIo->Media->BlockSize,
+               Buffer
+               );
+      FreePool(Buffer);
+    }
+  }
+
+  //
+  // Detect the the default boot file from removable Media
+  //
+
+  //
+  // If fail to get bootable handle specified by a USB boot option, the BDS should try to find other bootable device in the same USB bus
+  // Try to locate the USB node device path first, if fail then use its previous PCI node to search
+  //
+  DupDevicePath = DuplicateDevicePath (DevicePath);
+  ASSERT (DupDevicePath != NULL);
+
+  UpdatedDevicePath = DupDevicePath;
+  Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);
+  //
+  // if the resulting device path point to a usb node, and the usb node is a dummy node, should only let device path only point to the previous Pci node
+  // Acpi()/Pci()/Usb() --> Acpi()/Pci()
+  //
+  if ((DevicePathType (UpdatedDevicePath) == MESSAGING_DEVICE_PATH) &&
+      (DevicePathSubType (UpdatedDevicePath) == MSG_USB_DP)) {
+    //
+    // Remove the usb node, let the device path only point to PCI node
+    //
+    SetDevicePathEndNode (UpdatedDevicePath);
+    UpdatedDevicePath = DupDevicePath;
+  } else {
+    UpdatedDevicePath = DevicePath;
+  }
+
+  //
+  // Get the device path size of boot option
+  //
+  Size = GetDevicePathSize(UpdatedDevicePath) - sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node
+  ReturnHandle = NULL;
+  gBS->LocateHandleBuffer (
+      ByProtocol,
+      &gEfiSimpleFileSystemProtocolGuid,
+      NULL,
+      &NumberSimpleFileSystemHandles,
+      &SimpleFileSystemHandles
+      );
+  for (Index = 0; Index < NumberSimpleFileSystemHandles; Index++) {
+    //
+    // Get the device path size of SimpleFileSystem handle
+    //
+    TempDevicePath = DevicePathFromHandle (SimpleFileSystemHandles[Index]);
+    TempSize = GetDevicePathSize (TempDevicePath)- sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node
+    //
+    // Check whether the device path of boot option is part of the  SimpleFileSystem handle's device path
+    //
+    if (Size <= TempSize && CompareMem (TempDevicePath, UpdatedDevicePath, Size)==0) {
+      //
+      // Load the default boot file \EFI\BOOT\boot{machinename}.EFI from removable Media
+      //  machinename is ia32, ia64, x64, ...
+      //
+      Hdr.Union = &HdrData;
+      Status = BdsLibGetImageHeader (
+                 SimpleFileSystemHandles[Index],
+                 EFI_REMOVABLE_MEDIA_FILE_NAME,
+                 &DosHeader,
+                 Hdr
+                 );
+      if (!EFI_ERROR (Status) &&
+        EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Hdr.Pe32->FileHeader.Machine) &&
+        Hdr.Pe32->OptionalHeader.Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {
+        ReturnHandle = SimpleFileSystemHandles[Index];
+        break;
+      }
+    }
+  }
+
+  FreePool(DupDevicePath);
+
+  if (SimpleFileSystemHandles != NULL) {
+    FreePool(SimpleFileSystemHandles);
+  }
+
+  gBS->RestoreTPL (OldTpl);
+
+  return ReturnHandle;
+}
+
 /**
   Emuerate all possible bootable medias in the following order:
   1. Removable BlockIo            - The boot option only points to the removable media
@@ -2115,6 +2446,7 @@ BmEnumerateBootOptions (
   UINTN                                 Removable;
   UINTN                                 Index;
   CHAR16                                *Description;
+  EFI_DEVICE_PATH_PROTOCOL              *DevicePath;
 
   ASSERT (BootOptionCount != NULL);
 
@@ -2150,6 +2482,12 @@ BmEnumerateBootOptions (
         continue;
       }
 
+      // Skip devices that do not have an EFI volume
+      DevicePath = DevicePathFromHandle (Handles[Index]);
+      if (BdsLibGetBootableHandle (DevicePath) == NULL) {
+          continue;
+      }
+
       //
       // Skip the fixed block io then the removable block io
       //

MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c

@@ -15,7 +15,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define PRODUCT_IDENTIFICATION_LENGTH    16
 
 CONST UINT16 mBmUsbLangId    = 0x0409; // English
-CHAR16       mBmUefiPrefix[] = L"UEFI ";
+//CHAR16       mBmUefiPrefix[] = L"UEFI ";
 
 LIST_ENTRY mPlatformBootDescriptionHandlers = INITIALIZE_LIST_HEAD_VARIABLE (mPlatformBootDescriptionHandlers);
 
@@ -179,15 +179,15 @@ BmGetDescriptionFromDiskInfo (
       }
 
       Length = Index;
-      Description[Length++] = L' ';
+      //Description[Length++] = L' ';
 
-      for (Index = 0; Index + 1 < SerialNumberLength; Index += 2) {
+      //for (Index = 0; Index + 1 < SerialNumberLength; Index += 2) {
-        Description[Length + Index]     = (CHAR16) IdentifyData.SerialNo[Index + 1];
+      //  Description[Length + Index]     = (CHAR16) IdentifyData.SerialNo[Index + 1];
-        Description[Length + Index + 1] = (CHAR16) IdentifyData.SerialNo[Index];
+      //  Description[Length + Index + 1] = (CHAR16) IdentifyData.SerialNo[Index];
-      }
+      //}
-      Length += Index;
+      //Length += Index;
       Description[Length++] = L'\0';
-      ASSERT (Length == ModelNameLength + SerialNumberLength + 2);
+      //ASSERT (Length == ModelNameLength + SerialNumberLength + 2);
 
       BmEliminateExtraSpaces (Description);
     }
@@ -309,15 +309,16 @@ BmGetUsbDescription (
     Product = &NullChar;
   }
 
-  Status = UsbIo->UsbGetStringDescriptor (
+  //Status = UsbIo->UsbGetStringDescriptor (
-                    UsbIo,
+  //                  UsbIo,
-                    mBmUsbLangId,
+  //                  mBmUsbLangId,
-                    DevDesc.StrSerialNumber,
+  //                  DevDesc.StrSerialNumber,
-                    &SerialNumber
+  //                  &SerialNumber
-                    );
+  //                  );
-  if (EFI_ERROR (Status)) {
+  //if (EFI_ERROR (Status)) {
-    SerialNumber = &NullChar;
+  //  SerialNumber = &NullChar;
-  }
+  //}
+  SerialNumber = &NullChar;
 
   if ((Manufacturer == &NullChar) &&
       (Product == &NullChar) &&
@@ -630,15 +631,15 @@ BmGetNvmeDescription (
     for (Index = 0; Index < ARRAY_SIZE (ControllerData.Mn); Index++) {
       *(Char++) = (CHAR16) ControllerData.Mn[Index];
     }
-    *(Char++) = L' ';
+    //*(Char++) = L' ';
-    for (Index = 0; Index < ARRAY_SIZE (ControllerData.Sn); Index++) {
+    //for (Index = 0; Index < ARRAY_SIZE (ControllerData.Sn); Index++) {
-      *(Char++) = (CHAR16) ControllerData.Sn[Index];
+    //  *(Char++) = (CHAR16) ControllerData.Sn[Index];
-    }
+    //}
-    *(Char++) = L' ';
+    //*(Char++) = L' ';
-    UnicodeValueToStringS (
+    //UnicodeValueToStringS (
-      Char, sizeof (CHAR16) * (MAXIMUM_VALUE_CHARACTERS + 1),
+    //  Char, sizeof (CHAR16) * (MAXIMUM_VALUE_CHARACTERS + 1),
-      0, DevicePath.NvmeNamespace->NamespaceId, 0
+    //  0, DevicePath.NvmeNamespace->NamespaceId, 0
-      );
+    //  );
     BmEliminateExtraSpaces (Description);
   }
 
@@ -785,10 +786,12 @@ BmGetBootDescription (
       // Avoid description confusion between UEFI & Legacy boot option by adding "UEFI " prefix
       // ONLY for core provided boot description handler.
       //
-      Temp = AllocatePool (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix));
+      //Temp = AllocatePool (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix));
+      Temp = AllocatePool (StrSize (DefaultDescription));
       ASSERT (Temp != NULL);
-      StrCpyS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), mBmUefiPrefix);
+      //StrCpyS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), mBmUefiPrefix);
-      StrCatS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), DefaultDescription);
+      //StrCatS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), DefaultDescription);
+      StrCpyS (Temp, StrSize (DefaultDescription) / sizeof (CHAR16), DefaultDescription);
       FreePool (DefaultDescription);
       DefaultDescription = Temp;
       break;

MdeModulePkg/Library/UefiBootManagerLib/BmMisc.c

@@ -155,7 +155,7 @@ BmSetMemoryTypeInformationVariable (
   if (BootMode == BOOT_IN_RECOVERY_MODE) {
     return;
   }
-
+  return;
   //
   // Only check the the Memory Type Information variable in the boot mode
   // other than BOOT_WITH_DEFAULT_SETTINGS because the Memory Type

MdeModulePkg/MdeModulePkg.dec

@@ -2092,3 +2092,8 @@
 
 [UserExtensions.TianoCore."ExtraFiles"]
   MdeModulePkgExtra.uni
+
+[PcdsFixedAtBuild, PcdsPatchableInModule]
+  ## FFS filename to find the default BMP Logo file.
+  # @Prompt FFS Name of Boot Logo File
+  gEfiMdeModulePkgTokenSpaceGuid.PcdLogoFile |{ 0x99, 0x8b, 0xB2, 0x7B, 0xBB, 0x61, 0xD5, 0x11, 0x9A, 0x5D, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D }|VOID*|0x40000003

MdeModulePkg/MdeModulePkg.dsc

@@ -2,7 +2,7 @@
 # EFI/PI Reference Module Package for All Architectures
 #
 # (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
-# Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 #
 #    SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -444,6 +444,9 @@
   MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
 !endif
 
+[Components.IA32, Components.X64, Components.Ebc]
+  MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
+
 [Components.IA32, Components.X64]
   MdeModulePkg/Universal/DebugSupportDxe/DebugSupportDxe.inf
   MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo.inf

MdeModulePkg/Universal/BdsDxe/BdsEntry.c

@@ -325,7 +325,8 @@ BdsWait (
                     //         Can be removed after all keyboard drivers invoke callback in timer callback.
 
     if (HotkeyTriggered != NULL) {
-      Status = BdsWaitForSingleEvent (HotkeyTriggered, EFI_TIMER_PERIOD_SECONDS (1));
+      //Status = BdsWaitForSingleEvent (HotkeyTriggered, EFI_TIMER_PERIOD_SECONDS (1));
+      Status = BdsWaitForSingleEvent (gST->ConIn->WaitForKey, EFI_TIMER_PERIOD_SECONDS (1));
       if (!EFI_ERROR (Status)) {
         break;
       }
@@ -1014,7 +1015,7 @@ BdsEntry (
     //
     // BdsReadKeys() can be removed after all keyboard drivers invoke callback in timer callback.
     //
-    BdsReadKeys ();
+    //BdsReadKeys ();
 
     EfiBootManagerHotkeyBoot ();
 

MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c

@@ -38,8 +38,8 @@ EFI_DRIVER_BINDING_PROTOCOL gPartitionDriverBinding = {
 //
 PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {
   PartitionInstallGptChildHandles,
-  PartitionInstallMbrChildHandles,
   PartitionInstallUdfChildHandles,
+  PartitionInstallMbrChildHandles,
   NULL
 };
 

MdeModulePkg/Universal/SecurityStubDxe/Defer3rdPartyImageLoad.c

@@ -25,7 +25,7 @@ typedef struct {
 } DEFERRED_3RD_PARTY_IMAGE_TABLE;
 
 BOOLEAN                          mImageLoadedAfterEndOfDxe   = FALSE;
-BOOLEAN                          mEndOfDxe                   = FALSE;
+BOOLEAN                          mEndOfDxe                   = TRUE;
 DEFERRED_3RD_PARTY_IMAGE_TABLE   mDeferred3rdPartyImage = {
   0,       // Deferred image count
   NULL     // The deferred image info

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf

@@ -0,0 +1,88 @@
+## @file
+# Emulation Variable for EFI_RUNTIME_SERVICES.
+#
+# This module installs variable arch protocol and variable write arch protocol to provide
+# four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo.
+#
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution. The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = EmuVariableRuntimeDxe
+  MODULE_UNI_FILE                = EmuVariableRuntimeDxe.uni
+  FILE_GUID                      = 02B01AD5-7E59-43e8-A6D8-238180613A5A
+  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = VariableServiceInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources]
+  InitVariable.c
+  EmuVariable.c
+  Variable.h
+
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+
+[LibraryClasses]
+  BaseLib
+  UefiLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+  UefiRuntimeLib
+  DebugLib
+  MemoryAllocationLib
+  BaseMemoryLib
+  HobLib
+  PcdLib
+
+[Protocols]
+  gEfiVariableArchProtocolGuid                  ## PRODUCES
+  gEfiVariableWriteArchProtocolGuid             ## PRODUCES
+
+[Guids]
+  gEfiEventVirtualAddressChangeGuid             ## CONSUMES             ## Event
+  ## SOMETIMES_CONSUMES   ## Variable:L"PlatformLang"
+  ## SOMETIMES_PRODUCES   ## Variable:L"PlatformLang"
+  ## SOMETIMES_CONSUMES   ## Variable:L"Lang"
+  ## SOMETIMES_PRODUCES   ## Variable:L"Lang"
+  gEfiGlobalVariableGuid
+  ## PRODUCES             ## GUID # Signature of Variable store header
+  ## CONSUMES             ## GUID # Signature of Variable store header
+  ## SOMETIMES_CONSUMES   ## HOB
+  ## SOMETIMES_PRODUCES   ## SystemTable
+  gEfiVariableGuid
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved      ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize                 ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize    ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize               ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize                ## CONSUMES
+
+[FeaturePcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics   ## CONSUMES # statistic the information of variable.
+
+[Depex]
+  TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+  EmuVariableRuntimeDxeExtra.uni

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.uni

@@ -0,0 +1,22 @@
+// /** @file
+// Emulation Variable for EFI_RUNTIME_SERVICES.
+//
+// This module installs variable arch protocol and variable write arch protocol to provide
+// four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo.
+//
+// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Emulation Variable for EFI_RUNTIME_SERVICES"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "This module installs variable arch protocol and variable write arch protocol to provide four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo."
+

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxeExtra.uni

@@ -0,0 +1,19 @@
+// /** @file
+// EmuVariableRuntimeDxe Localized Strings and Content
+//
+// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+// **/
+
+#string STR_PROPERTIES_MODULE_NAME
+#language en-US
+"Emulation Variable DXE Driver"
+
+

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/InitVariable.c

@@ -0,0 +1,259 @@
+/** @file
+
+  Implment all four UEFI runtime variable services and
+  install variable architeture protocol.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "Variable.h"
+
+EFI_EVENT   mVirtualAddressChangeEvent = NULL;
+
+/**
+
+  This code finds variable in storage blocks (Volatile or Non-Volatile).
+
+  @param VariableName               Name of Variable to be found.
+  @param VendorGuid                 Variable vendor GUID.
+  @param Attributes                 Attribute value of the variable found.
+  @param DataSize                   Size of Data found. If size is less than the
+                                    data, this value contains the required size.
+  @param Data                       The buffer to return the contents of the variable. May be NULL
+                                    with a zero DataSize in order to determine the size buffer needed.
+
+  @return EFI_INVALID_PARAMETER     Invalid parameter
+  @return EFI_SUCCESS               Find the specified variable
+  @return EFI_NOT_FOUND             Not found
+  @return EFI_BUFFER_TO_SMALL       DataSize is too small for the result
+
+**/
+EFI_STATUS
+EFIAPI
+RuntimeServiceGetVariable (
+  IN CHAR16        *VariableName,
+  IN EFI_GUID      *VendorGuid,
+  OUT UINT32       *Attributes OPTIONAL,
+  IN OUT UINTN     *DataSize,
+  OUT VOID         *Data OPTIONAL
+  )
+{
+  return EmuGetVariable (
+          VariableName,
+          VendorGuid,
+          Attributes OPTIONAL,
+          DataSize,
+          Data,
+          &mVariableModuleGlobal->VariableGlobal[Physical]
+          );
+}
+
+/**
+
+  This code Finds the Next available variable.
+
+  @param  VariableNameSize       The size of the VariableName buffer. The size must be large enough to fit input
+                                 string supplied in VariableName buffer.
+  @param  VariableName           On input, supplies the last VariableName that was returned by GetNextVariableName().
+                                 On output, returns the Null-terminated Unicode string of the current variable.
+  @param  VendorGuid             On input, supplies the last VendorGuid that was returned by GetNextVariableName().
+                                 On output, returns the VendorGuid of the current variable.
+
+  @retval EFI_SUCCESS            The function completed successfully.
+  @retval EFI_NOT_FOUND          The next variable was not found.
+  @retval EFI_BUFFER_TOO_SMALL   The VariableNameSize is too small for the result.
+                                 VariableNameSize has been updated with the size needed to complete the request.
+  @retval EFI_INVALID_PARAMETER  VariableNameSize or VariableName or VendorGuid is NULL.
+  @retval EFI_INVALID_PARAMETER  The input values of VariableName and VendorGuid are not a name and
+                                 GUID of an existing variable.
+  @retval EFI_INVALID_PARAMETER  Null-terminator is not found in the first VariableNameSize bytes of
+                                 the input VariableName buffer.
+
+**/
+EFI_STATUS
+EFIAPI
+RuntimeServiceGetNextVariableName (
+  IN OUT UINTN     *VariableNameSize,
+  IN OUT CHAR16    *VariableName,
+  IN OUT EFI_GUID  *VendorGuid
+  )
+{
+  return EmuGetNextVariableName (
+          VariableNameSize,
+          VariableName,
+          VendorGuid,
+          &mVariableModuleGlobal->VariableGlobal[Physical]
+          );
+}
+
+/**
+
+  This code sets variable in storage blocks (Volatile or Non-Volatile).
+
+  @param VariableName                     Name of Variable to be found
+  @param VendorGuid                       Variable vendor GUID
+  @param Attributes                       Attribute value of the variable found
+  @param DataSize                         Size of Data found. If size is less than the
+                                          data, this value contains the required size.
+  @param Data                             Data pointer
+
+  @return EFI_INVALID_PARAMETER           Invalid parameter
+  @return EFI_SUCCESS                     Set successfully
+  @return EFI_OUT_OF_RESOURCES            Resource not enough to set variable
+  @return EFI_NOT_FOUND                   Not found
+  @return EFI_WRITE_PROTECTED             Variable is read-only
+
+**/
+EFI_STATUS
+EFIAPI
+RuntimeServiceSetVariable (
+  IN CHAR16        *VariableName,
+  IN EFI_GUID      *VendorGuid,
+  IN UINT32        Attributes,
+  IN UINTN         DataSize,
+  IN VOID          *Data
+  )
+{
+  return EmuSetVariable (
+          VariableName,
+          VendorGuid,
+          Attributes,
+          DataSize,
+          Data,
+          &mVariableModuleGlobal->VariableGlobal[Physical],
+          &mVariableModuleGlobal->VolatileLastVariableOffset,
+          &mVariableModuleGlobal->NonVolatileLastVariableOffset
+          );
+}
+
+/**
+
+  This code returns information about the EFI variables.
+
+  @param Attributes                     Attributes bitmask to specify the type of variables
+                                        on which to return information.
+  @param MaximumVariableStorageSize     Pointer to the maximum size of the storage space available
+                                        for the EFI variables associated with the attributes specified.
+  @param RemainingVariableStorageSize   Pointer to the remaining size of the storage space available
+                                        for EFI variables associated with the attributes specified.
+  @param MaximumVariableSize            Pointer to the maximum size of an individual EFI variables
+                                        associated with the attributes specified.
+
+  @return EFI_INVALID_PARAMETER         An invalid combination of attribute bits was supplied.
+  @return EFI_SUCCESS                   Query successfully.
+  @return EFI_UNSUPPORTED               The attribute is not supported on this platform.
+
+**/
+EFI_STATUS
+EFIAPI
+RuntimeServiceQueryVariableInfo (
+  IN  UINT32                 Attributes,
+  OUT UINT64                 *MaximumVariableStorageSize,
+  OUT UINT64                 *RemainingVariableStorageSize,
+  OUT UINT64                 *MaximumVariableSize
+  )
+{
+  return EmuQueryVariableInfo (
+          Attributes,
+          MaximumVariableStorageSize,
+          RemainingVariableStorageSize,
+          MaximumVariableSize,
+          &mVariableModuleGlobal->VariableGlobal[Physical]
+          );
+}
+
+/**
+  Notification function of EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
+
+  This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
+  It convers pointer to new virtual address.
+
+  @param  Event        Event whose notification function is being invoked.
+  @param  Context      Pointer to the notification function's context.
+
+**/
+VOID
+EFIAPI
+VariableClassAddressChangeEvent (
+  IN EFI_EVENT        Event,
+  IN VOID             *Context
+  )
+{
+  EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->PlatformLangCodes);
+  EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->LangCodes);
+  EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->PlatformLang);
+  EfiConvertPointer (
+    0x0,
+    (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].NonVolatileVariableBase
+    );
+  EfiConvertPointer (
+    0x0,
+    (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].VolatileVariableBase
+    );
+  EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);
+}
+
+/**
+  EmuVariable Driver main entry point. The Variable driver places the 4 EFI
+  runtime services in the EFI System Table and installs arch protocols
+  for variable read and write services being available. It also registers
+  notification function for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
+
+  @param[in] ImageHandle    The firmware allocated handle for the EFI image.
+  @param[in] SystemTable    A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS       Variable service successfully initialized.
+
+**/
+EFI_STATUS
+EFIAPI
+VariableServiceInitialize (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  )
+{
+  EFI_HANDLE  NewHandle;
+  EFI_STATUS  Status;
+
+  Status = VariableCommonInitialize (ImageHandle, SystemTable);
+  ASSERT_EFI_ERROR (Status);
+
+  SystemTable->RuntimeServices->GetVariable         = RuntimeServiceGetVariable;
+  SystemTable->RuntimeServices->GetNextVariableName = RuntimeServiceGetNextVariableName;
+  SystemTable->RuntimeServices->SetVariable         = RuntimeServiceSetVariable;
+  SystemTable->RuntimeServices->QueryVariableInfo   = RuntimeServiceQueryVariableInfo;
+
+  //
+  // Now install the Variable Runtime Architectural Protocol on a new handle
+  //
+  NewHandle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &NewHandle,
+                  &gEfiVariableArchProtocolGuid,
+                  NULL,
+                  &gEfiVariableWriteArchProtocolGuid,
+                  NULL,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  Status = gBS->CreateEventEx (
+                  EVT_NOTIFY_SIGNAL,
+                  TPL_NOTIFY,
+                  VariableClassAddressChangeEvent,
+                  NULL,
+                  &gEfiEventVirtualAddressChangeGuid,
+                  &mVirtualAddressChangeEvent
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h

@@ -0,0 +1,277 @@
+/** @file
+
+  The internal header file includes the common header files, defines
+  internal structure and functions used by EmuVariable module.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _VARIABLE_H_
+#define _VARIABLE_H_
+
+#include <Uefi.h>
+
+#include <Protocol/VariableWrite.h>
+#include <Protocol/Variable.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiRuntimeLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseLib.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include <Guid/VariableFormat.h>
+#include <Guid/GlobalVariable.h>
+
+#include <Guid/EventGroup.h>
+
+#define GET_VARIABLE_NAME_PTR(a)  (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
+
+///
+/// The size of a 3 character ISO639 language code.
+///
+#define ISO_639_2_ENTRY_SIZE    3
+
+typedef enum {
+  Physical,
+  Virtual
+} VARIABLE_POINTER_TYPE;
+
+typedef struct {
+  VARIABLE_HEADER *CurrPtr;
+  VARIABLE_HEADER *EndPtr;
+  VARIABLE_HEADER *StartPtr;
+  BOOLEAN         Volatile;
+} VARIABLE_POINTER_TRACK;
+
+typedef struct {
+  EFI_PHYSICAL_ADDRESS  VolatileVariableBase;
+  EFI_PHYSICAL_ADDRESS  NonVolatileVariableBase;
+  EFI_LOCK              VariableServicesLock;
+} VARIABLE_GLOBAL;
+
+typedef struct {
+  VARIABLE_GLOBAL VariableGlobal[2];
+  UINTN           VolatileLastVariableOffset;
+  UINTN           NonVolatileLastVariableOffset;
+  UINTN           CommonVariableTotalSize;
+  UINTN           HwErrVariableTotalSize;
+  CHAR8           *PlatformLangCodes;
+  CHAR8           *LangCodes;
+  CHAR8           *PlatformLang;
+  CHAR8           Lang[ISO_639_2_ENTRY_SIZE + 1];
+} ESAL_VARIABLE_GLOBAL;
+
+///
+/// Don't use module globals after the SetVirtualAddress map is signaled
+///
+extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
+
+/**
+  Initializes variable store area for non-volatile and volatile variable.
+
+  This function allocates and initializes memory space for global context of ESAL
+  variable service and variable store area for non-volatile and volatile variable.
+
+  @param  ImageHandle           The Image handle of this driver.
+  @param  SystemTable           The pointer of EFI_SYSTEM_TABLE.
+
+  @retval EFI_SUCCESS           Function successfully executed.
+  @retval EFI_OUT_OF_RESOURCES  Fail to allocate enough memory resource.
+
+**/
+EFI_STATUS
+EFIAPI
+VariableCommonInitialize (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  );
+
+/**
+  Entry point of EmuVariable service module.
+
+  This function is the entry point of EmuVariable service module.
+  It registers all interfaces of Variable Services, initializes
+  variable store for non-volatile and volatile variables, and registers
+  notification function for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
+
+  @param  ImageHandle   The Image handle of this driver.
+  @param  SystemTable   The pointer of EFI_SYSTEM_TABLE.
+
+  @retval EFI_SUCCESS   Variable service successfully initialized.
+
+**/
+EFI_STATUS
+EFIAPI
+VariableServiceInitialize (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  );
+
+/**
+  Notification function of EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
+
+  This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
+  It convers pointer to new virtual address.
+
+  @param  Event        Event whose notification function is being invoked.
+  @param  Context      Pointer to the notification function's context.
+
+**/
+VOID
+EFIAPI
+VariableClassAddressChangeEvent (
+  IN EFI_EVENT        Event,
+  IN VOID             *Context
+  );
+
+/**
+  This code finds variable in storage blocks (Volatile or Non-Volatile).
+
+  @param  VariableName           A Null-terminated Unicode string that is the name of
+                                 the vendor's variable.
+  @param  VendorGuid             A unique identifier for the vendor.
+  @param  Attributes             If not NULL, a pointer to the memory location to return the
+                                 attributes bitmask for the variable.
+  @param  DataSize               Size of Data found. If size is less than the
+                                 data, this value contains the required size.
+  @param  Data                   On input, the size in bytes of the return Data buffer.
+                                 On output, the size of data returned in Data.
+  @param  Global                 Pointer to VARIABLE_GLOBAL structure
+
+  @retval EFI_SUCCESS            The function completed successfully.
+  @retval EFI_NOT_FOUND          The variable was not found.
+  @retval EFI_BUFFER_TOO_SMALL   DataSize is too small for the result.  DataSize has
+                                 been updated with the size needed to complete the request.
+  @retval EFI_INVALID_PARAMETER  VariableName or VendorGuid or DataSize is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+EmuGetVariable (
+  IN      CHAR16            *VariableName,
+  IN      EFI_GUID          *VendorGuid,
+  OUT     UINT32            *Attributes OPTIONAL,
+  IN OUT  UINTN             *DataSize,
+  OUT     VOID              *Data,
+  IN      VARIABLE_GLOBAL   *Global
+  );
+
+/**
+
+  This code finds the next available variable.
+
+  @param  VariableNameSize       The size of the VariableName buffer. The size must be large enough to fit input
+                                 string supplied in VariableName buffer.
+  @param  VariableName           On input, supplies the last VariableName that was returned by GetNextVariableName().
+                                 On output, returns the Null-terminated Unicode string of the current variable.
+  @param  VendorGuid             On input, supplies the last VendorGuid that was returned by GetNextVariableName().
+                                 On output, returns the VendorGuid of the current variable.
+  @param  Global                 Pointer to VARIABLE_GLOBAL structure.
+
+  @retval EFI_SUCCESS            The function completed successfully.
+  @retval EFI_NOT_FOUND          The next variable was not found.
+  @retval EFI_BUFFER_TOO_SMALL   The VariableNameSize is too small for the result.
+                                 VariableNameSize has been updated with the size needed to complete the request.
+  @retval EFI_INVALID_PARAMETER  VariableNameSize or VariableName or VendorGuid is NULL.
+  @retval EFI_INVALID_PARAMETER  The input values of VariableName and VendorGuid are not a name and
+                                 GUID of an existing variable.
+  @retval EFI_INVALID_PARAMETER  Null-terminator is not found in the first VariableNameSize bytes of
+                                 the input VariableName buffer.
+
+**/
+EFI_STATUS
+EFIAPI
+EmuGetNextVariableName (
+  IN OUT  UINTN             *VariableNameSize,
+  IN OUT  CHAR16            *VariableName,
+  IN OUT  EFI_GUID          *VendorGuid,
+  IN      VARIABLE_GLOBAL   *Global
+  );
+
+/**
+
+  This code sets variable in storage blocks (Volatile or Non-Volatile).
+
+  @param  VariableName           A Null-terminated Unicode string that is the name of the vendor's
+                                 variable.  Each VariableName is unique for each
+                                 VendorGuid.  VariableName must contain 1 or more
+                                 Unicode characters.  If VariableName is an empty Unicode
+                                 string, then EFI_INVALID_PARAMETER is returned.
+  @param  VendorGuid             A unique identifier for the vendor
+  @param  Attributes             Attributes bitmask to set for the variable
+  @param  DataSize               The size in bytes of the Data buffer.  A size of zero causes the
+                                 variable to be deleted.
+  @param  Data                   The contents for the variable
+  @param  Global                 Pointer to VARIABLE_GLOBAL structure
+  @param  VolatileOffset         The offset of last volatile variable
+  @param  NonVolatileOffset      The offset of last non-volatile variable
+
+  @retval EFI_SUCCESS            The firmware has successfully stored the variable and its data as
+                                 defined by the Attributes.
+  @retval EFI_INVALID_PARAMETER  An invalid combination of attribute bits was supplied, or the
+                                 DataSize exceeds the maximum allowed, or VariableName is an empty
+                                 Unicode string, or VendorGuid is NULL.
+  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the variable and its data.
+  @retval EFI_DEVICE_ERROR       The variable could not be saved due to a hardware failure.
+  @retval EFI_WRITE_PROTECTED    The variable in question is read-only or cannot be deleted.
+  @retval EFI_NOT_FOUND          The variable trying to be updated or deleted was not found.
+
+**/
+EFI_STATUS
+EFIAPI
+EmuSetVariable (
+  IN CHAR16                  *VariableName,
+  IN EFI_GUID                *VendorGuid,
+  IN UINT32                  Attributes,
+  IN UINTN                   DataSize,
+  IN VOID                    *Data,
+  IN VARIABLE_GLOBAL         *Global,
+  IN UINTN                   *VolatileOffset,
+  IN UINTN                   *NonVolatileOffset
+  );
+
+/**
+
+  This code returns information about the EFI variables.
+
+  @param  Attributes                   Attributes bitmask to specify the type of variables
+                                       on which to return information.
+  @param  MaximumVariableStorageSize   On output the maximum size of the storage space available for
+                                       the EFI variables associated with the attributes specified.
+  @param  RemainingVariableStorageSize Returns the remaining size of the storage space available for EFI
+                                       variables associated with the attributes specified.
+  @param  MaximumVariableSize          Returns the maximum size of an individual EFI variable
+                                       associated with the attributes specified.
+  @param  Global                       Pointer to VARIABLE_GLOBAL structure.
+
+  @retval EFI_SUCCESS                  Valid answer returned.
+  @retval EFI_INVALID_PARAMETER        An invalid combination of attribute bits was supplied
+  @retval EFI_UNSUPPORTED              The attribute is not supported on this platform, and the
+                                       MaximumVariableStorageSize, RemainingVariableStorageSize,
+                                       MaximumVariableSize are undefined.
+
+**/
+EFI_STATUS
+EFIAPI
+EmuQueryVariableInfo (
+  IN  UINT32                 Attributes,
+  OUT UINT64                 *MaximumVariableStorageSize,
+  OUT UINT64                 *RemainingVariableStorageSize,
+  OUT UINT64                 *MaximumVariableSize,
+  IN  VARIABLE_GLOBAL        *Global
+  );
+
+#endif

MdePkg/Include/Register/Intel/ArchitecturalMsr.h

@@ -6378,7 +6378,11 @@ typedef union {
     /// [Bit 11] Execute Disable Bit Enable: IA32_EFER.NXE (R/W).
     ///
     UINT32  NXE:1;
-    UINT32  Reserved3:20;
+    ///
+    /// [ Bit 12] Secure Virtual Machine Enable (AMD only)
+    ///
+    UINT32  SVME:1;
+    UINT32  Reserved3:19;
     UINT32  Reserved4:32;
   } Bits;
   ///

UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeSmmCpuException.c

@@ -111,7 +111,7 @@ CommonExceptionHandlerWorker (
     //
     // Enter a dead loop if needn't to execute old IDT handler further
     //
-    if (ReservedVectors[ExceptionType].Attribute != EFI_VECTOR_HANDOFF_HOOK_BEFORE) {
+    if (ReservedVectors[ExceptionType].Attribute != EFI_VECTOR_HANDOFF_HOOK_BEFORE && ExceptionType != EXCEPT_IA32_DEBUG) {
       CpuDeadLoop ();
     }
   }
@@ -293,4 +293,3 @@ RegisterCpuInterruptHandlerWorker (
   ExternalInterruptHandler[InterruptType] = InterruptHandler;
   return EFI_SUCCESS;
 }
-

UefiCpuPkg/Library/MtrrLib/MtrrLib.c

@@ -2763,6 +2763,10 @@ IsMtrrSupported (
   CPUID_VERSION_INFO_EDX    Edx;
   MSR_IA32_MTRRCAP_REGISTER MtrrCap;
 
+  if (PcdGetBool(PcdCpuDisableMtrrProgramming)) {
+    return FALSE;
+  }
+
   //
   // Check CPUID(1).EDX[12] for MTRR capability
   //

UefiCpuPkg/Library/MtrrLib/MtrrLib.inf

@@ -37,4 +37,4 @@
 
 [Pcd]
   gUefiCpuPkgTokenSpaceGuid.PcdCpuNumberOfReservedVariableMtrrs   ## SOMETIMES_CONSUMES
-
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming ## CONSUMES

UefiCpuPkg/UefiCpuPkg.dec

@@ -197,6 +197,10 @@
   # @Prompt SMM Code Access Check.
   gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmCodeAccessCheckEnable|TRUE|BOOLEAN|0x60000013
 
+  ## Disables MTRR programming in case it's already programmed by FSB.
+  # @Prompt Disable MTRR programming.
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming|FALSE|BOOLEAN|0x00000017
+
   ## Specifies the number of variable MTRRs reserved for OS use. The default number of
   #  MTRRs reserved for OS use is 2.
   # @Prompt Number of reserved variable MTRRs.

UefiCpuPkg/UefiCpuPkg.uni

@@ -140,9 +140,13 @@
 
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotPlugDataAddress_HELP  #language en-US "Contains the pointer to a CPU Hot Plug Data structure if CPU hot-plug is supported."
 
-#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_PROMPT  #language en-US "Number of reserved variable MTRRs"
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuDisableMtrrProgramming_PROMPT  #language en-US "Number of reserved variable MTRRs"
 
-#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_HELP  #language en-US "Specifies the number of variable MTRRs reserved for OS use."
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuDisableMtrrProgramming_HELP  #language en-US "Specifies the number of variable MTRRs reserved for OS use."
+
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_PROMPT  #language en-US "Disable MTRR programming."
+
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_HELP  #language en-US "Disables MTRR programming in case it's already programmed by FSB."
 
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuApLoopMode_PROMPT  #language en-US "The AP wait loop state"
 

UefiPayloadPkg/BlSupportPei/BlSupportPei.c

@@ -390,12 +390,24 @@ BlPeiEntryPoint (
   EFI_PEI_GRAPHICS_DEVICE_INFO_HOB GfxDeviceInfo;
   EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *NewGfxDeviceInfo;
 
+  // Report lower 640KB of RAM.
+  // Mark memory as reserved to keep coreboot header in place.
+  //
+  BuildResourceDescriptorHob (
+    EFI_RESOURCE_MEMORY_RESERVED,
+    (
+    EFI_RESOURCE_ATTRIBUTE_PRESENT |
+    EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+    EFI_RESOURCE_ATTRIBUTE_TESTED |
+    EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+    EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+    EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+    EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
+    ),
+    (EFI_PHYSICAL_ADDRESS)(0),
+    (UINT64)(0x1000)
+    );
 
-  //
-  // Report lower 640KB of RAM. Attribute EFI_RESOURCE_ATTRIBUTE_TESTED
-  // is intentionally omitted to prevent erasing of the coreboot header
-  // record before it is processed by ParseMemoryInfo.
-  //
   BuildResourceDescriptorHob (
     EFI_RESOURCE_SYSTEM_MEMORY,
     (
@@ -406,8 +418,8 @@ BlPeiEntryPoint (
     EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
     EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
     ),
-    (EFI_PHYSICAL_ADDRESS)(0),
+    (EFI_PHYSICAL_ADDRESS)(0x1000),
-    (UINT64)(0xA0000)
+    (UINT64)(0x9F000)
     );
 
   BuildResourceDescriptorHob (

UefiPayloadPkg/Include/Guid/PciExpressBaseAddress.h

@@ -0,0 +1,46 @@
+/** @file
+
+Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+  
+    PciExpressBaseAddress.h
+    
+Abstract:
+
+
+   GUIDs used for PciExpress Base Address
+
+**/
+
+#ifndef _EFI_PCI_EXPRESS_BASE_ADDRESS_H_
+#define _EFI_PCI_EXPRESS_BASE_ADDRESS_H_
+
+#define EFI_PCI_EXPRESS_BASE_ADDRESS_GUID \
+  { \
+  0x3677d529, 0x326f, 0x4603, {0xa9, 0x26, 0xea, 0xac, 0xe0, 0x1d, 0xcb, 0xb0} \
+  }
+
+//
+// Following structure defines PCI Express Base Address information.
+// This information is platform specific, and built into hob in PEI phase.
+// It can be consumed by PEI PCI driver and DXE PCI driver.
+//
+#pragma pack(1)
+typedef struct _EFI_PCI_EXPRESS_BASE_ADDRESS_INFORMATION {
+  UINT32       HostBridgeNumber;
+  UINT32       RootBridgeNumber;
+  UINT64       PciExpressBaseAddress;
+} EFI_PCI_EXPRESS_BASE_ADDRESS_INFORMATION;
+#pragma pack()
+
+extern EFI_GUID gEfiPciExpressBaseAddressGuid;
+
+#endif

UefiPayloadPkg/Include/Guid/PciOptionRomTable.h

@@ -0,0 +1,41 @@
+/** @file
+  GUID and data structure used to describe the list of PCI Option ROMs present in a system.
+  
+Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+**/
+
+#ifndef __PCI_OPTION_ROM_TABLE_GUID_H_
+#define __PCI_OPTION_ROM_TABLE_GUID_H_
+
+#define EFI_PCI_OPTION_ROM_TABLE_GUID \
+  { 0x7462660f, 0x1cbd, 0x48da, {0xad, 0x11, 0x91, 0x71, 0x79, 0x13, 0x83, 0x1c } }
+
+extern EFI_GUID gEfiPciOptionRomTableGuid;
+
+typedef struct {
+  EFI_PHYSICAL_ADDRESS   RomAddress; 
+  EFI_MEMORY_TYPE        MemoryType;
+  UINT32                 RomLength; 
+  UINT32                 Seg; 
+  UINT8                  Bus; 
+  UINT8                  Dev; 
+  UINT8                  Func; 
+  BOOLEAN                ExecutedLegacyBiosImage; 
+  BOOLEAN                DontLoadEfiRom;
+} EFI_PCI_OPTION_ROM_DESCRIPTOR;
+
+typedef struct {
+  UINT64                         PciOptionRomCount;
+  EFI_PCI_OPTION_ROM_DESCRIPTOR   *PciOptionRomDescriptors;
+} EFI_PCI_OPTION_ROM_TABLE;
+
+#endif // __PCI_OPTION_ROM_TABLE_GUID_H_
+

UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf

@@ -39,3 +39,4 @@
   DevicePathLib
   MemoryAllocationLib
   PciLib
+  DxeServicesTableLib

UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c

@@ -16,6 +16,7 @@
 #include <Library/MemoryAllocationLib.h>
 #include <Library/PciHostBridgeLib.h>
 #include <Library/PciLib.h>
+#include <Library/DxeServicesTableLib.h>
 #include "PciHostBridge.h"
 
 /**
@@ -139,6 +140,55 @@ PcatPciRootBridgeBarExisted (
   EnableInterrupts ();
 }
 
+STATIC
+EFI_STATUS
+PcatPciRootBridgeWarnAboutBrokenFW (
+  IN  UINT64            Start,
+  IN  UINT64            Limit
+)
+{
+  EFI_STATUS                            Status;
+  UINTN                                 Index;
+  UINT64                                IntersectionBase;
+  UINT64                                IntersectionEnd;
+  UINTN                                 NumberOfDescriptors;
+  EFI_GCD_MEMORY_SPACE_DESCRIPTOR       *Map;
+
+  Status = gDS->GetMemorySpaceMap (&NumberOfDescriptors, &Map);
+  if (EFI_ERROR (Status)) {
+    DEBUG ((EFI_D_ERROR, "%a: %a: GetMemorySpaceMap(): %r\n",
+      gEfiCallerBaseName, __FUNCTION__, Status));
+    return Status;
+  }
+
+  for (Index = 0; Index < NumberOfDescriptors; Index++) {
+    if (Map[Index].GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
+      //
+      // Ignore non existent entries
+      //
+      continue;
+    }
+
+    IntersectionBase = MAX (Start, Map[Index].BaseAddress);
+    IntersectionEnd = MIN (Limit, Map[Index].BaseAddress + Map[Index].Length);
+    if (IntersectionBase >= IntersectionEnd) {
+      //
+      // The descriptor and the aperture don't overlap.
+      //
+      continue;
+    }
+
+    if (Map[Index].GcdMemoryType == EfiGcdMemoryTypeReserved) {
+      DEBUG ((EFI_D_ERROR, "%a: PCI aperature overlaps reserved memory region\n",
+        __FUNCTION__));
+      DEBUG ((EFI_D_ERROR, "%a: Please consider fixing EDK2 or your firmware\n",
+        __FUNCTION__));
+      return EFI_ACCESS_DENIED;
+    }
+  }
+  return EFI_SUCCESS;
+}
+
 /**
   Parse PCI bar and collect the assigned PCI resource information.
 
@@ -192,6 +242,9 @@ PcatPciRootBridgeParseBars (
   UINT64                            Length;
   UINT64                            Limit;
   PCI_ROOT_BRIDGE_APERTURE          *MemAperture;
+  UINT64                            NewBase;
+  UINT64                            NewLength;
+  EFI_STATUS                        Status;
 
   for (Offset = BarOffsetBase; Offset < BarOffsetEnd; Offset += sizeof (UINT32)) {
     PcatPciRootBridgeBarExisted (
@@ -271,6 +324,33 @@ PcatPciRootBridgeParseBars (
 
         Limit = Base + Length - 1;
         if ((Base > 0) && (Base < Limit)) {
+          NewBase = MemAperture->Base;
+          if (MemAperture->Base > Base) {
+            NewBase = Base;
+          }
+          NewLength = MemAperture->Base;
+          if (MemAperture->Limit < Limit) {
+            NewLength = Base;
+          }
+
+          //
+          // In case the BAR is placed on "the other side" of the MMCONF window
+          // this would cause the aperature to cover the MMCONF window, which
+          // isn't supported by EDK2.
+          //
+          Status = PcatPciRootBridgeWarnAboutBrokenFW(NewBase, NewLength);
+          if (EFI_ERROR (Status)) {
+            DEBUG ((EFI_D_ERROR, "%a: Not adding PCI %x:%x.%x BAR@%d %x:%x to aperature\n",
+              __FUNCTION__,
+              Bus,
+              Device,
+              Function,
+              Offset,
+              Base,
+              Limit));
+            continue;
+          }
+
           if (MemAperture->Base > Base) {
             MemAperture->Base = Base;
           }

UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c

@@ -152,35 +152,18 @@ PlatformBootManagerBeforeConsole (
   VOID
 )
 {
-  EFI_INPUT_KEY                Enter;
+  EFI_INPUT_KEY                Escape;
-  EFI_INPUT_KEY                F2;
-  EFI_INPUT_KEY                Down;
   EFI_BOOT_MANAGER_LOAD_OPTION BootOption;
 
   PlatformConsoleInit ();
 
   //
-  // Register ENTER as CONTINUE key
+  // Map Escape to Boot Manager Menu
   //
-  Enter.ScanCode    = SCAN_NULL;
+  Escape.ScanCode    = SCAN_ESC;
-  Enter.UnicodeChar = CHAR_CARRIAGE_RETURN;
+  Escape.UnicodeChar = CHAR_NULL;
-  EfiBootManagerRegisterContinueKeyOption (0, &Enter, NULL);
-
-  //
-  // Map F2 to Boot Manager Menu
-  //
-  F2.ScanCode    = SCAN_F2;
-  F2.UnicodeChar = CHAR_NULL;
   EfiBootManagerGetBootManagerMenu (&BootOption);
-  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16) BootOption.OptionNumber, 0, &F2, NULL);
+  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16) BootOption.OptionNumber, 0, &Escape, NULL);
-
-  //
-  // Also add Down key to Boot Manager Menu since some serial terminals don't support F2 key.
-  //
-  Down.ScanCode    = SCAN_DOWN;
-  Down.UnicodeChar = CHAR_NULL;
-  EfiBootManagerGetBootManagerMenu (&BootOption);
-  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16) BootOption.OptionNumber, 0, &Down, NULL);
 
   //
   // Install ready to lock.
@@ -210,11 +193,11 @@ PlatformBootManagerAfterConsole (
   VOID
 )
 {
-  EFI_GRAPHICS_OUTPUT_BLT_PIXEL  Black;
+  gST->ConOut->ClearScreen (gST->ConOut);
-  EFI_GRAPHICS_OUTPUT_BLT_PIXEL  White;
+  BootLogoEnableLogo ();
 
-  Black.Blue = Black.Green = Black.Red = Black.Reserved = 0;
+  // FIXME: USB devices are not being detected unless we wait a bit.
-  White.Blue = White.Green = White.Red = White.Reserved = 0xFF;
+  gBS->Stall (100 * 1000);
 
   EfiBootManagerConnectAll ();
   EfiBootManagerRefreshAllBootOption ();
@@ -222,15 +205,10 @@ PlatformBootManagerAfterConsole (
   //
   // Register UEFI Shell
   //
-  PlatformRegisterFvBootOption (PcdGetPtr (PcdShellFile), L"UEFI Shell", LOAD_OPTION_ACTIVE);
+  //PlatformRegisterFvBootOption (PcdGetPtr (PcdShellFile), L"UEFI Shell", LOAD_OPTION_ACTIVE);
-
-  Print (
-    L"\n"
-    L"F2 or Down      to enter Boot Manager Menu.\n"
-    L"ENTER           to boot directly.\n"
-    L"\n"
-  );
 
+  // Inject boot logo into BGRT table
+  AddBGRT();
 }
 
 /**
@@ -244,7 +222,20 @@ PlatformBootManagerWaitCallback (
   UINT16          TimeoutRemain
 )
 {
-  return;
+  EFI_GRAPHICS_OUTPUT_BLT_PIXEL   Black;
+  EFI_GRAPHICS_OUTPUT_BLT_PIXEL   White;
+
+  Black.Blue = Black.Green = Black.Red = Black.Reserved = 0;
+  White.Blue = White.Green = White.Red = White.Reserved = 0xFF;
+
+  BootLogoUpdateProgress (
+      White,
+      Black,
+      L"Press ESC for Boot Options/Settings, or SPACE for Pop!_OS Recovery",
+      White,
+      0,
+      0
+      );
 }
 
 /**
@@ -260,6 +251,51 @@ PlatformBootManagerUnableToBoot (
   VOID
   )
 {
-  return;
+  EFI_STATUS                   Status;
+  EFI_INPUT_KEY                Key;
+  EFI_BOOT_MANAGER_LOAD_OPTION BootManagerMenu;
+  UINTN                        Index;
+
+  //
+  // BootManagerMenu doesn't contain the correct information when return status
+  // is EFI_NOT_FOUND.
+  //
+  Status = EfiBootManagerGetBootManagerMenu (&BootManagerMenu);
+  if (EFI_ERROR (Status)) {
+    return;
+  }
+  //
+  // Normally BdsDxe does not print anything to the system console, but this is
+  // a last resort -- the end-user will likely not see any DEBUG messages
+  // logged in this situation.
+  //
+  // AsciiPrint() will NULL-check gST->ConOut internally. We check gST->ConIn
+  // here to see if it makes sense to request and wait for a keypress.
+  //
+  if (gST->ConOut != NULL && gST->ConIn != NULL) {
+    gST->ConOut->ClearScreen (gST->ConOut);
+    AsciiPrint (
+      "%a: No bootable option or device was found.\n"
+      "%a: Press any key to enter the Boot Manager Menu.\n",
+      gEfiCallerBaseName,
+      gEfiCallerBaseName
+      );
+    Status = gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &Index);
+    ASSERT_EFI_ERROR (Status);
+    ASSERT (Index == 0);
+
+    //
+    // Drain any queued keys.
+    //
+    while (!EFI_ERROR (gST->ConIn->ReadKeyStroke (gST->ConIn, &Key))) {
+      //
+      // just throw away Key
+      //
+    }
+  }
+
+  for (;;) {
+    EfiBootManagerBoot (&BootManagerMenu);
+  }
 }
 

UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf

@@ -39,6 +39,7 @@
   UefiRuntimeServicesTableLib
   UefiLib
   UefiBootManagerLib
+  BootLogoLib
   PcdLib
   DxeServicesLib
   MemoryAllocationLib

UefiPayloadPkg/Library/System76EcLib/System76EcLib.c

@@ -0,0 +1,144 @@
+/** @file
+  System76 EC logging
+
+  Copyright (c) 2020 System76, Inc.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/IoLib.h>
+
+// From coreboot/src/drivers/system76_ec/system76_ec.c {
+#define SYSTEM76_EC_BASE 0x0E00
+
+static inline UINT8 system76_ec_read(UINT8 addr) {
+    return IoRead8(SYSTEM76_EC_BASE + (UINT16)addr);
+}
+
+static inline void system76_ec_write(UINT8 addr, UINT8 data) {
+    IoWrite8(SYSTEM76_EC_BASE + (UINT16)addr, data);
+}
+
+void system76_ec_init(void) {
+    // Clear entire command region
+    for (int i = 0; i < 256; i++) {
+        system76_ec_write((UINT8)i, 0);
+    }
+}
+
+void system76_ec_flush(void) {
+    // Send command
+    system76_ec_write(0, 4);
+
+    // Wait for command completion
+    while (system76_ec_read(0) != 0) {}
+
+    // Clear length
+    system76_ec_write(3, 0);
+}
+
+void system76_ec_print(UINT8 byte) {
+    // Read length
+    UINT8 len = system76_ec_read(3);
+    // Write data at offset
+    system76_ec_write(len + 4, byte);
+    // Update length
+    system76_ec_write(3, len + 1);
+
+    // If we hit the end of the buffer, or were given a newline, flush
+    if (byte == '\n' || len >= 128) {
+        system76_ec_flush();
+    }
+}
+// } From coreboot/src/drivers/system76_ec/system76_ec.c
+
+// Implement SerialPortLib {
+#include <Library/SerialPortLib.h>
+
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+  VOID
+  )
+{
+    system76_ec_init();
+    return RETURN_SUCCESS;
+}
+
+UINTN
+EFIAPI
+SerialPortWrite (
+  IN UINT8     *Buffer,
+  IN UINTN     NumberOfBytes
+  )
+{
+    if (Buffer == NULL) {
+        return 0;
+    }
+
+    if (NumberOfBytes == 0) {
+        system76_ec_flush();
+        return 0;
+    }
+
+    for(UINTN i = 0; i < NumberOfBytes; i++) {
+        system76_ec_print(Buffer[i]);
+    }
+
+    return NumberOfBytes;
+}
+
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+  VOID
+  )
+{
+    return FALSE;
+}
+
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+  OUT UINT32 *Control
+  )
+{
+    return RETURN_UNSUPPORTED;
+}
+
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+  IN UINT32 Control
+  )
+{
+    return RETURN_UNSUPPORTED;
+}
+
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+  IN OUT UINT64             *BaudRate,
+  IN OUT UINT32             *ReceiveFifoDepth,
+  IN OUT UINT32             *Timeout,
+  IN OUT EFI_PARITY_TYPE    *Parity,
+  IN OUT UINT8              *DataBits,
+  IN OUT EFI_STOP_BITS_TYPE *StopBits
+  )
+{
+    return RETURN_UNSUPPORTED;
+}
+// } Implement SerialPortLib
+
+// Implement PlatformHookLib {
+#include <Library/PlatformHookLib.h>
+
+RETURN_STATUS
+EFIAPI
+PlatformHookSerialPortInitialize (
+  VOID
+  )
+{
+    return RETURN_SUCCESS;
+}
+// } Implement PlatformHookLib

UefiPayloadPkg/Library/System76EcLib/System76EcLib.inf

@@ -0,0 +1,28 @@
+## @file
+#  System76 EC logging.
+#
+#  Copyright (c) 2020, System76, Inc.
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = System76EcLib
+  MODULE_UNI_FILE                = System76EcLib.uni
+  FILE_GUID                      = 76ECF0DD-148B-4E48-8589-FC998823F8C2
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 0.1
+  LIBRARY_CLASS                  = System76EcLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  UefiPayloadPkg/UefiPayloadPkg.dec
+
+[LibraryClasses]
+  IoLib
+
+[Sources]
+  System76EcLib.c
+
+[Pcd]

UefiPayloadPkg/Library/System76EcLib/System76EcLib.uni

@@ -0,0 +1,13 @@
+// /** @file
+// System76 EC logging.
+//
+// Copyright (c) 2020, System76, Inc.
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "System76 EC logging"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "System76 EC logging."
+

UefiPayloadPkg/PciBusNoEnumerationDxe/ComponentName.c

@@ -0,0 +1,161 @@
+/*++
+
+Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "PciBus.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+PciBusComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+PciBusComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gPciBusComponentName = {
+  PciBusComponentNameGetDriverName,
+  PciBusComponentNameGetControllerName,
+  "eng"
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gPciBusComponentName2 = {
+  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) PciBusComponentNameGetDriverName,
+  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) PciBusComponentNameGetControllerName,
+  "en"
+};
+
+
+EFI_UNICODE_STRING_TABLE mPciBusDriverNameTable[] = {
+  { "eng;en", L"PCI Bus Driver" },
+  { NULL, NULL }
+};
+
+EFI_STATUS
+EFIAPI
+PciBusComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString2 (
+           Language,
+           This->SupportedLanguages,
+           mPciBusDriverNameTable, 
+           DriverName,
+           (BOOLEAN)(This == &gPciBusComponentName)
+           );
+}
+
+EFI_STATUS
+EFIAPI
+PciBusComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return EFI_UNSUPPORTED;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciBus.c

@@ -0,0 +1,346 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciBus.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+ 
+--*/
+
+#include "PciBus.h"
+
+//
+// PCI Bus Support Function Prototypes
+//
+
+EFI_STATUS
+EFIAPI
+PciBusEntryPoint (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  );
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+  );
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+  );
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    Controller,
+  IN  UINTN                         NumberOfChildren,
+  IN  EFI_HANDLE                    *ChildHandleBuffer
+  );
+
+
+//
+// PCI Bus Driver Global Variables
+//
+
+EFI_DRIVER_BINDING_PROTOCOL                   gPciBusDriverBinding = {
+  PciBusDriverBindingSupported,
+  PciBusDriverBindingStart,
+  PciBusDriverBindingStop,
+  0xa,
+  NULL,
+  NULL
+};
+
+BOOLEAN gFullEnumeration;
+
+UINT64 gAllOne    = 0xFFFFFFFFFFFFFFFFULL;
+UINT64 gAllZero   = 0;
+ 
+//
+// PCI Bus Driver Support Functions
+//
+EFI_STATUS
+EFIAPI
+PciBusEntryPoint (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Initialize the global variables
+  publish the driver binding protocol
+
+Arguments:
+
+  IN EFI_HANDLE     ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+
+Returns:
+
+  EFI_SUCCESS 
+  EFI_DEVICE_ERROR 
+
+--*/
+{
+  EFI_STATUS         Status;
+
+  //
+  // Initialize the EFI Driver Library
+  //
+  Status = EfiLibInstallDriverBindingComponentName2 (
+             ImageHandle,
+             SystemTable,
+             &gPciBusDriverBinding,
+             ImageHandle,
+             &gPciBusComponentName,
+             &gPciBusComponentName2
+             );
+  ASSERT_EFI_ERROR (Status);
+  
+  InitializePciDevicePool ();
+
+  gFullEnumeration = TRUE;
+  
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  Check to see if pci bus driver supports the given controller
+
+Arguments:
+  
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+
+Returns:
+
+  EFI_SUCCESS
+
+--*/
+{
+  EFI_STATUS                      Status;
+  EFI_DEVICE_PATH_PROTOCOL        *ParentDevicePath;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+  EFI_DEV_PATH_PTR                Node;
+
+  if (RemainingDevicePath != NULL) {
+    Node.DevPath = RemainingDevicePath;
+    if (Node.DevPath->Type != HARDWARE_DEVICE_PATH ||
+        Node.DevPath->SubType != HW_PCI_DP         ||
+        DevicePathNodeLength(Node.DevPath) != sizeof(PCI_DEVICE_PATH)) {
+      return EFI_UNSUPPORTED;
+    }
+  }
+  //
+  // Open the IO Abstraction(s) needed to perform the supported test
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **) &ParentDevicePath,
+                  This->DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (Status == EFI_ALREADY_STARTED) {
+    return EFI_SUCCESS;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  gBS->CloseProtocol (
+        Controller,
+        &gEfiDevicePathProtocolGuid,
+        This->DriverBindingHandle,
+        Controller
+        );
+
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiPciRootBridgeIoProtocolGuid,
+                  (VOID **) &PciRootBridgeIo,
+                  This->DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (Status == EFI_ALREADY_STARTED) {
+    return EFI_SUCCESS;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  gBS->CloseProtocol (
+         Controller,
+         &gEfiPciRootBridgeIoProtocolGuid,
+         This->DriverBindingHandle,
+         Controller
+         );
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN EFI_HANDLE                   Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  Start to management the controller passed in
+
+Arguments:
+  
+  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN EFI_HANDLE                   Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+
+Returns:
+ 
+
+--*/
+{
+  EFI_STATUS                          Status;
+
+  //
+  // Enumerate the entire host bridge
+  // After enumeration, a database that records all the device information will be created
+  //
+  //
+  Status = PciEnumerator (Controller);
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  
+  //
+  // Enable PCI device specified by remaining device path. BDS or other driver can call the
+  // start more than once.
+  //
+  
+  StartPciDevices (Controller, RemainingDevicePath);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+PciBusDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    Controller,
+  IN  UINTN                         NumberOfChildren,
+  IN  EFI_HANDLE                    *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+  Stop one or more children created at start of pci bus driver
+  if all the the children get closed, close the protocol
+
+Arguments:
+  
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    Controller,
+  IN  UINTN                         NumberOfChildren,
+  IN  EFI_HANDLE                    *ChildHandleBuffer
+
+Returns:
+
+  
+--*/
+{
+  EFI_STATUS  Status;
+  UINTN       Index;
+  BOOLEAN     AllChildrenStopped;
+
+  if (NumberOfChildren == 0) {
+    //
+    // Close the bus driver
+    //
+    gBS->CloseProtocol (
+           Controller,
+           &gEfiDevicePathProtocolGuid,
+           This->DriverBindingHandle,
+           Controller
+           );
+    gBS->CloseProtocol (
+           Controller,
+           &gEfiPciRootBridgeIoProtocolGuid,
+           This->DriverBindingHandle,
+           Controller
+           );
+
+    DestroyRootBridgeByHandle (
+      Controller
+      );
+
+    return EFI_SUCCESS;
+  }
+
+  //
+  // Stop all the children
+  //
+
+  AllChildrenStopped = TRUE;
+
+  for (Index = 0; Index < NumberOfChildren; Index++) {
+
+    //
+    // De register all the pci device
+    //
+    Status = DeRegisterPciDevice (Controller, ChildHandleBuffer[Index]);
+
+    if (EFI_ERROR (Status)) {
+      AllChildrenStopped = FALSE;
+    }
+  }
+
+  if (!AllChildrenStopped) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  return EFI_SUCCESS;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciBus.h

@@ -0,0 +1,225 @@
+/*++
+
+Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciBus.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_BUS_H
+#define _EFI_PCI_BUS_H
+
+#include <PiDxe.h>
+
+#include <Protocol/PciIo.h>
+#include <Protocol/PciRootBridgeIo.h>
+#include <Protocol/DevicePath.h>
+#include <Protocol/Decompress.h>
+#include <Protocol/UgaIo.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/BusSpecificDriverOverride.h>
+
+#include <Guid/PciOptionRomTable.h>
+
+#include <IndustryStandard/Pci.h>
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/PeImage.h>
+
+#include <Library/DebugLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/ReportStatusCodeLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PeCoffLib.h>
+
+//
+// Driver Produced Protocol Prototypes
+//
+
+#define VGABASE1  0x3B0
+#define VGALIMIT1 0x3BB
+
+#define VGABASE2  0x3C0
+#define VGALIMIT2 0x3DF
+
+#define ISABASE   0x100
+#define ISALIMIT  0x3FF
+
+typedef enum {
+  PciBarTypeUnknown = 0,
+  PciBarTypeIo16,
+  PciBarTypeIo32,
+  PciBarTypeMem32,
+  PciBarTypePMem32,
+  PciBarTypeMem64,
+  PciBarTypePMem64,
+  PciBarTypeIo,
+  PciBarTypeMem,
+  PciBarTypeMaxType
+} PCI_BAR_TYPE;
+
+typedef struct {
+  UINT64        BaseAddress;
+  UINT64        Length;
+  UINT64        Alignment;
+  PCI_BAR_TYPE  BarType;
+  BOOLEAN       Prefetchable;
+  UINT8         MemType;
+  UINT8         Offset;
+} PCI_BAR;
+
+#define PCI_IO_DEVICE_SIGNATURE   SIGNATURE_32 ('p','c','i','o')
+
+#define EFI_BRIDGE_IO32_DECODE_SUPPORTED        0x0001 
+#define EFI_BRIDGE_PMEM32_DECODE_SUPPORTED      0x0002 
+#define EFI_BRIDGE_PMEM64_DECODE_SUPPORTED      0x0004 
+#define EFI_BRIDGE_IO16_DECODE_SUPPORTED        0x0008  
+#define EFI_BRIDGE_PMEM_MEM_COMBINE_SUPPORTED   0x0010  
+#define EFI_BRIDGE_MEM64_DECODE_SUPPORTED       0x0020
+#define EFI_BRIDGE_MEM32_DECODE_SUPPORTED       0x0040
+
+
+typedef struct _PCI_IO_DEVICE {
+  UINT32                                    Signature;
+  EFI_HANDLE                                Handle;
+  EFI_PCI_IO_PROTOCOL                       PciIo;
+  LIST_ENTRY                            Link;
+
+  EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL PciDriverOverride;
+  EFI_DEVICE_PATH_PROTOCOL                  *DevicePath;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL           *PciRootBridgeIo;
+
+  //
+  // PCI configuration space header type
+  //
+  PCI_TYPE00                                Pci;
+
+  //
+  // Bus number, Device number, Function number
+  //
+  UINT8                                     BusNumber;
+  UINT8                                     DeviceNumber;
+  UINT8                                     FunctionNumber;
+
+  //
+  // BAR for this PCI Device
+  //
+  PCI_BAR                                   PciBar[PCI_MAX_BAR];
+
+  //
+  // The bridge device this pci device is subject to
+  //
+  struct _PCI_IO_DEVICE                     *Parent;
+
+  //
+  // A linked list for children Pci Device if it is bridge device
+  //
+  LIST_ENTRY                            ChildList;
+
+  //
+  // TRUE if the PCI bus driver creates the handle for this PCI device
+  //
+  BOOLEAN                                   Registered;
+
+  //
+  // TRUE if the PCI bus driver successfully allocates the resource required by
+  // this PCI device
+  //
+  BOOLEAN                                   Allocated;
+
+  //
+  // The attribute this PCI device currently set
+  //
+  UINT64                                    Attributes;
+
+  //
+  // The attributes this PCI device actually supports
+  //
+  UINT64                                    Supports;
+
+  //
+  // The resource decode the bridge supports
+  //
+  UINT32                                    Decodes;
+
+  //
+  // The OptionRom Size
+  //
+  UINT64                                    RomSize;
+
+  //
+  // TRUE if there is any EFI driver in the OptionRom
+  //
+  BOOLEAN                                   BusOverride;
+
+  //
+  //  A list tracking reserved resource on a bridge device
+  //
+  LIST_ENTRY                            ReservedResourceList;
+
+  //
+  // A list tracking image handle of platform specific overriding driver
+  //
+  LIST_ENTRY                            OptionRomDriverList;
+
+  BOOLEAN                                   IsPciExp;
+
+} PCI_IO_DEVICE;
+
+
+#define PCI_IO_DEVICE_FROM_PCI_IO_THIS(a) \
+  CR (a, PCI_IO_DEVICE, PciIo, PCI_IO_DEVICE_SIGNATURE)
+
+#define PCI_IO_DEVICE_FROM_PCI_DRIVER_OVERRIDE_THIS(a) \
+  CR (a, PCI_IO_DEVICE, PciDriverOverride, PCI_IO_DEVICE_SIGNATURE)
+
+#define PCI_IO_DEVICE_FROM_LINK(a) \
+  CR (a, PCI_IO_DEVICE, Link, PCI_IO_DEVICE_SIGNATURE)
+
+//
+// Global Variables
+//
+extern EFI_COMPONENT_NAME_PROTOCOL gPciBusComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL  gPciBusComponentName2;
+extern EFI_DRIVER_BINDING_PROTOCOL  gPciBusDriverBinding;
+
+extern BOOLEAN                     gFullEnumeration;
+extern UINT64                      gAllOne;
+extern UINT64                      gAllZero;
+
+#include "PciIo.h"
+#include "PciCommand.h"
+#include "PciDeviceSupport.h"
+#include "PciEnumerator.h"
+#include "PciEnumeratorSupport.h"
+#include "PciDriverOverride.h"
+#include "PciRomTable.h"
+#include "PciOptionRomSupport.h"
+#include "PciPowerManagement.h"
+
+
+#define IS_ISA_BRIDGE(_p)       IS_CLASS2 (_p, PCI_CLASS_BRIDGE, PCI_CLASS_BRIDGE_ISA)  
+#define IS_INTEL_ISA_BRIDGE(_p) (IS_CLASS2 (_p, PCI_CLASS_BRIDGE, PCI_CLASS_BRIDGE_ISA_PDECODE) && ((_p)->Hdr.VendorId == 0x8086) && ((_p)->Hdr.DeviceId == 0x7110))
+#define IS_PCI_GFX(_p)     IS_CLASS2 (_p, PCI_CLASS_DISPLAY, PCI_CLASS_DISPLAY_OTHER)
+
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciBusNoEnumeration.inf

@@ -0,0 +1,72 @@
+## @file
+# 
+# Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>
+# This program and the accompanying materials                          
+# are licensed and made available under the terms and conditions of the BSD License         
+# which accompanies this distribution.  The full text of the license may be found at        
+# http://opensource.org/licenses/bsd-license.php                                            
+#                                                                                           
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+#
+#  Module Name:
+#
+#  Abstract:
+#
+##
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PciBusNoEnumerationDxe
+  FILE_GUID                      = 35C0C168-2607-4e51-BB53-448E3ED1A87F
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+
+  ENTRY_POINT                    = PciBusEntryPoint
+
+[Packages]
+  MdePkg/MdePkg.dec
+  UefiPayloadPkg/UefiPayloadPkg.dec
+
+[LibraryClasses]
+  DebugLib
+  BaseLib
+  UefiLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+  BaseMemoryLib
+  ReportStatusCodeLib
+  DevicePathLib
+  PeCoffLib
+
+[Sources]
+  PciBus.h
+  PciIo.h
+  PciCommand.h
+  PciDeviceSupport.h
+  PciEnumerator.h
+  PciEnumeratorSupport.h
+  PciOptionRomSupport.h
+  PciRomTable.h
+  PciPowerManagement.h
+  PciPowerManagement.c
+  PciRomTable.c
+  PciDriverOverride.h
+  PciDriverOverride.c
+  PciOptionRomSupport.c
+  PciEnumerator.c
+  PciEnumeratorSupport.c
+  PciCommand.c
+  ComponentName.c
+  PciDeviceSupport.c
+  PciBus.c
+  PciIo.c
+
+[Protocols]
+  gEfiPciRootBridgeIoProtocolGuid
+  gEfiPciIoProtocolGuid
+  gEfiDevicePathProtocolGuid
+  gEfiBusSpecificDriverOverrideProtocolGuid
+  gEfiDecompressProtocolGuid
+  
+[Guids]
+  gEfiPciOptionRomTableGuid

UefiPayloadPkg/PciBusNoEnumerationDxe/PciCommand.c

@@ -0,0 +1,453 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciCommand.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+
+EFI_STATUS 
+PciReadCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  OUT UINT16       *Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  *Command = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  return PciIo->Pci.Read (
+                PciIo, 
+                EfiPciIoWidthUint16, 
+                PCI_COMMAND_OFFSET, 
+                1, 
+                Command
+                );
+}
+  
+EFI_STATUS 
+PciSetCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16                Temp;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+  
+  Temp = Command;
+  PciIo = &PciIoDevice->PciIo;
+
+  return PciIo->Pci.Write (
+              PciIo, 
+              EfiPciIoWidthUint16, 
+              PCI_COMMAND_OFFSET, 
+              1, 
+              &Temp
+              );
+  
+}
+
+
+EFI_STATUS 
+PciEnableCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16  OldCommand;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  OldCommand = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  PciIo->Pci.Read (
+          PciIo, 
+          EfiPciIoWidthUint16, 
+          PCI_COMMAND_OFFSET, 
+          1, 
+          &OldCommand
+          );
+
+  OldCommand = (UINT16) (OldCommand | Command);
+
+  return PciIo->Pci.Write (
+              PciIo, 
+              EfiPciIoWidthUint16, 
+              PCI_COMMAND_OFFSET, 
+              1, 
+              &OldCommand
+              );
+  
+}
+
+
+EFI_STATUS 
+PciDisableCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16  OldCommand;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  OldCommand = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  PciIo->Pci.Read (
+          PciIo, 
+          EfiPciIoWidthUint16, 
+          PCI_COMMAND_OFFSET, 
+          1, 
+          &OldCommand
+          );
+
+  OldCommand = (UINT16) (OldCommand & ~(Command));
+
+  return PciIo->Pci.Write (
+            PciIo, 
+            EfiPciIoWidthUint16, 
+            PCI_COMMAND_OFFSET, 
+            1, 
+            &OldCommand
+           );
+  
+}
+
+
+
+EFI_STATUS 
+PciSetBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16                Temp;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  Temp = Command;
+  PciIo = &PciIoDevice->PciIo;
+
+  return PciIo->Pci.Write (
+                PciIo, 
+                EfiPciIoWidthUint16, 
+                PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+                1, 
+                &Temp
+               );
+ 
+}
+
+
+EFI_STATUS 
+PciEnableBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16  OldCommand;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  OldCommand = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  PciIo->Pci.Read (
+          PciIo, 
+          EfiPciIoWidthUint16, 
+          PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+          1, 
+          &OldCommand
+          );
+
+  OldCommand = (UINT16) (OldCommand | Command);
+
+  return PciIo->Pci.Write (
+              PciIo, 
+              EfiPciIoWidthUint16, 
+              PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+              1, 
+              &OldCommand
+             );
+  
+}
+
+EFI_STATUS 
+PciDisableBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  UINT16  OldCommand;
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  OldCommand = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  PciIo->Pci.Read (
+          PciIo, 
+          EfiPciIoWidthUint16, 
+          PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+          1, 
+          &OldCommand
+          );
+
+  OldCommand = (UINT16) (OldCommand & ~(Command));
+
+  return PciIo->Pci.Write (
+              PciIo, 
+              EfiPciIoWidthUint16, 
+              PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+              1, 
+              &OldCommand
+              );
+ 
+}
+
+
+
+EFI_STATUS 
+PciReadBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  OUT UINT16       *Command
+)
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+
+  EFI_PCI_IO_PROTOCOL   *PciIo;
+
+  *Command = 0;
+  PciIo = &PciIoDevice->PciIo;
+
+  return PciIo->Pci.Read (
+                PciIo, 
+                EfiPciIoWidthUint16, 
+                PCI_BRIDGE_CONTROL_REGISTER_OFFSET, 
+                1, 
+                Command
+                );
+ 
+}
+
+BOOLEAN
+PciCapabilitySupport (
+  IN PCI_IO_DEVICE  *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+  
+  None
+
+--*/
+// TODO:    PciIoDevice - add argument and description to function comment
+{
+
+  if (PciIoDevice->Pci.Hdr.Status & EFI_PCI_STATUS_CAPABILITY) {
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+EFI_STATUS
+LocateCapabilityRegBlock (
+  IN     PCI_IO_DEVICE *PciIoDevice,
+  IN     UINT8         CapId,
+  IN OUT UINT8         *Offset,
+     OUT UINT8         *NextRegBlock OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  Locate Capability register.
+
+Arguments:
+
+  PciIoDevice         - A pointer to the PCI_IO_DEVICE.
+  CapId               - The capability ID.
+  Offset              - A pointer to the offset. 
+                        As input: the default offset; 
+                        As output: the offset of the found block.
+  NextRegBlock        - An optional pointer to return the value of next block.
+
+Returns:
+  
+  EFI_UNSUPPORTED     - The Pci Io device is not supported.
+  EFI_NOT_FOUND       - The Pci Io device cannot be found.
+  EFI_SUCCESS         - The Pci Io device is successfully located.
+
+--*/
+{
+  UINT8   CapabilityPtr;
+  UINT16  CapabilityEntry;
+  UINT8   CapabilityID;
+
+  //
+  // To check the capability of this device supports
+  //
+  if (!PciCapabilitySupport (PciIoDevice)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  if (*Offset != 0) {
+    CapabilityPtr = *Offset;
+  } else {
+
+    CapabilityPtr = 0;
+    if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
+
+      PciIoDevice->PciIo.Pci.Read (
+                               &PciIoDevice->PciIo,
+                               EfiPciIoWidthUint8,
+                               EFI_PCI_CARDBUS_BRIDGE_CAPABILITY_PTR,
+                               1,
+                               &CapabilityPtr
+                               );
+    } else {
+
+      PciIoDevice->PciIo.Pci.Read (
+                               &PciIoDevice->PciIo,
+                               EfiPciIoWidthUint8,
+                               PCI_CAPBILITY_POINTER_OFFSET,
+                               1,
+                               &CapabilityPtr
+                               );
+    }
+  }
+
+  while ((CapabilityPtr >= 0x40) && ((CapabilityPtr & 0x03) == 0x00)) {
+    PciIoDevice->PciIo.Pci.Read (
+                             &PciIoDevice->PciIo,
+                             EfiPciIoWidthUint16,
+                             CapabilityPtr,
+                             1,
+                             &CapabilityEntry
+                             );
+
+    CapabilityID = (UINT8) CapabilityEntry;
+
+    if (CapabilityID == CapId) {
+      *Offset = CapabilityPtr;
+      if (NextRegBlock != NULL) {
+        *NextRegBlock = (UINT8) (CapabilityEntry >> 8);
+      }
+
+      return EFI_SUCCESS;
+    }
+
+    CapabilityPtr = (UINT8) (CapabilityEntry >> 8);
+  }
+
+  return EFI_NOT_FOUND;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciCommand.h

@@ -0,0 +1,167 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+  
+    PciCommand.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_COMMAND_H
+#define _EFI_PCI_COMMAND_H
+
+#include "PciBus.h"
+
+//
+// The PCI Command register bits owned by PCI Bus driver.
+//
+// They should be cleared at the beginning. The other registers
+// are owned by chipset, we should not touch them.
+//
+#define EFI_PCI_COMMAND_BITS_OWNED                          ( \
+                EFI_PCI_COMMAND_IO_SPACE                    | \
+                EFI_PCI_COMMAND_MEMORY_SPACE                | \
+                EFI_PCI_COMMAND_BUS_MASTER                  | \
+                EFI_PCI_COMMAND_MEMORY_WRITE_AND_INVALIDATE | \
+                EFI_PCI_COMMAND_VGA_PALETTE_SNOOP           | \
+                EFI_PCI_COMMAND_FAST_BACK_TO_BACK             \
+                )
+
+//
+// The PCI Bridge Control register bits owned by PCI Bus driver.
+// 
+// They should be cleared at the beginning. The other registers
+// are owned by chipset, we should not touch them.
+//
+#define EFI_PCI_BRIDGE_CONTROL_BITS_OWNED                   ( \
+                EFI_PCI_BRIDGE_CONTROL_ISA                  | \
+                EFI_PCI_BRIDGE_CONTROL_VGA                  | \
+                EFI_PCI_BRIDGE_CONTROL_VGA_16               | \
+                EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK      \
+                )
+
+//
+// The PCCard Bridge Control register bits owned by PCI Bus driver.
+// 
+// They should be cleared at the beginning. The other registers
+// are owned by chipset, we should not touch them.
+//
+#define EFI_PCCARD_BRIDGE_CONTROL_BITS_OWNED                ( \
+                EFI_PCI_BRIDGE_CONTROL_ISA                  | \
+                EFI_PCI_BRIDGE_CONTROL_VGA                  | \
+                EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK      \
+                )
+
+EFI_STATUS 
+PciReadCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  OUT UINT16       *Command
+);
+
+  
+EFI_STATUS 
+PciSetCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+);
+
+EFI_STATUS 
+PciEnableCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+);
+
+EFI_STATUS 
+PciDisableCommandRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+);
+
+EFI_STATUS 
+PciDisableBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+);
+
+
+EFI_STATUS 
+PciEnableBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  IN UINT16        Command
+);
+
+EFI_STATUS 
+PciReadBridgeControlRegister (
+  IN PCI_IO_DEVICE *PciIoDevice,
+  OUT UINT16       *Command
+);
+
+BOOLEAN
+PciCapabilitySupport (
+  IN PCI_IO_DEVICE  *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+LocateCapabilityRegBlock (
+  IN     PCI_IO_DEVICE *PciIoDevice,
+  IN     UINT8         CapId,
+  IN OUT UINT8         *Offset,
+     OUT UINT8         *NextRegBlock OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  Locate Capability register.
+
+Arguments:
+
+  PciIoDevice         - A pointer to the PCI_IO_DEVICE.
+  CapId               - The capability ID.
+  Offset              - A pointer to the offset. 
+                        As input: the default offset; 
+                        As output: the offset of the found block.
+  NextRegBlock        - An optional pointer to return the value of next block.
+
+Returns:
+  
+  EFI_UNSUPPORTED     - The Pci Io device is not supported.
+  EFI_NOT_FOUND       - The Pci Io device cannot be found.
+  EFI_SUCCESS         - The Pci Io device is successfully located.
+
+--*/
+;
+
+
+#endif
+

UefiPayloadPkg/PciBusNoEnumerationDxe/PciDeviceSupport.c

@@ -0,0 +1,973 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciDeviceSupport.c
+  
+Abstract:
+
+  This file provides routine to support Pci device node manipulation
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+//
+// This device structure is serviced as a header.
+// Its Next field points to the first root bridge device node
+//
+LIST_ENTRY  gPciDevicePool;
+
+EFI_STATUS
+InitializePciDevicePool (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  Initialize the gPciDevicePool
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  InitializeListHead (&gPciDevicePool);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+InsertRootBridge (
+  IN PCI_IO_DEVICE *RootBridge
+  )
+/*++
+
+Routine Description:
+
+  Insert a root bridge into PCI device pool
+
+Arguments:
+
+  RootBridge    - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+{
+  InsertTailList (&gPciDevicePool, &(RootBridge->Link));
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+InsertPciDevice (
+  PCI_IO_DEVICE *Bridge,
+  PCI_IO_DEVICE *PciDeviceNode
+  )
+/*++
+
+Routine Description:
+
+  This function is used to insert a PCI device node under
+  a bridge
+
+Arguments:
+  Bridge        - A pointer to the PCI_IO_DEVICE.
+  PciDeviceNode - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+
+{
+
+  InsertTailList (&Bridge->ChildList, &(PciDeviceNode->Link));
+  PciDeviceNode->Parent = Bridge;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+DestroyRootBridge (
+  IN PCI_IO_DEVICE *RootBridge
+  )
+/*++
+
+Routine Description:
+
+  
+Arguments:
+
+  RootBridge   - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+{
+  DestroyPciDeviceTree (RootBridge);
+
+  gBS->FreePool (RootBridge);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+DestroyPciDeviceTree (
+  IN PCI_IO_DEVICE *Bridge
+  )
+/*++
+
+Routine Description:
+
+  Destroy all the pci device node under the bridge.
+  Bridge itself is not included.
+
+Arguments:
+
+  Bridge   - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+{
+  LIST_ENTRY  *CurrentLink;
+  PCI_IO_DEVICE   *Temp;
+
+  while (!IsListEmpty (&Bridge->ChildList)) {
+
+    CurrentLink = Bridge->ChildList.ForwardLink;
+
+    //
+    // Remove this node from the linked list
+    //
+    RemoveEntryList (CurrentLink);
+
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+
+    if (IS_PCI_BRIDGE (&(Temp->Pci))) {
+      DestroyPciDeviceTree (Temp);
+    }
+    gBS->FreePool (Temp);
+  }
+  
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+DestroyRootBridgeByHandle (
+  EFI_HANDLE Controller
+  )
+/*++
+
+Routine Description:
+
+  Destroy all device nodes under the root bridge
+  specified by Controller. 
+  The root bridge itself is also included.
+
+Arguments:
+
+  Controller   - An efi handle.
+
+Returns:
+
+  None
+
+--*/
+{
+
+  LIST_ENTRY  *CurrentLink;
+  PCI_IO_DEVICE   *Temp;
+
+  CurrentLink = gPciDevicePool.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &gPciDevicePool) {
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+
+    if (Temp->Handle == Controller) {
+
+      RemoveEntryList (CurrentLink);
+
+      DestroyPciDeviceTree (Temp);
+
+      gBS->FreePool(Temp);
+
+      return EFI_SUCCESS;
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return EFI_NOT_FOUND;
+}
+
+EFI_STATUS
+RegisterPciDevice (
+  IN  EFI_HANDLE                     Controller,
+  IN  PCI_IO_DEVICE                  *PciIoDevice,
+  OUT EFI_HANDLE                     *Handle OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  This function registers the PCI IO device. It creates a handle for this PCI IO device 
+  (if the handle does not exist), attaches appropriate protocols onto the handle, does
+  necessary initialization, and sets up parent/child relationship with its bus controller.
+
+Arguments:
+
+  Controller    - An EFI handle for the PCI bus controller.
+  PciIoDevice   - A PCI_IO_DEVICE pointer to the PCI IO device to be registered.
+  Handle        - A pointer to hold the EFI handle for the PCI IO device.
+
+Returns:
+
+  EFI_SUCCESS   - The PCI device is successfully registered.
+  Others        - An error occurred when registering the PCI device.
+
+--*/
+{
+  EFI_STATUS          Status;
+  UINT8               PciExpressCapRegOffset;
+
+  //
+  // Install the pciio protocol, device path protocol and 
+  // Bus Specific Driver Override Protocol
+  //
+
+  if (PciIoDevice->BusOverride) {
+    Status = gBS->InstallMultipleProtocolInterfaces (
+                  &PciIoDevice->Handle,             
+                  &gEfiDevicePathProtocolGuid,
+                  PciIoDevice->DevicePath,
+                  &gEfiPciIoProtocolGuid,
+                  &PciIoDevice->PciIo,
+                  &gEfiBusSpecificDriverOverrideProtocolGuid,
+                  &PciIoDevice->PciDriverOverride,
+                  NULL
+                  );
+  } else {
+    Status = gBS->InstallMultipleProtocolInterfaces (
+                  &PciIoDevice->Handle,             
+                  &gEfiDevicePathProtocolGuid,
+                  PciIoDevice->DevicePath,
+                  &gEfiPciIoProtocolGuid,
+                  &PciIoDevice->PciIo,
+                  NULL
+                  );
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  } else {
+    Status = gBS->OpenProtocol (
+                    Controller,           
+                    &gEfiPciRootBridgeIoProtocolGuid, 
+                    (VOID **)&(PciIoDevice->PciRootBridgeIo),
+                    gPciBusDriverBinding.DriverBindingHandle,
+                    PciIoDevice->Handle,   
+                    EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                    );
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+  }
+
+  if (Handle != NULL) {
+    *Handle = PciIoDevice->Handle;
+  }
+
+  //
+  // Detect if PCI Express Device
+  //
+  PciExpressCapRegOffset = 0;
+  Status = LocateCapabilityRegBlock (
+             PciIoDevice,
+             EFI_PCI_CAPABILITY_ID_PCIEXP,
+             &PciExpressCapRegOffset,
+             NULL
+             );
+  if (!EFI_ERROR (Status)) {
+    PciIoDevice->IsPciExp = TRUE;
+    DEBUG ((EFI_D_ERROR, "PciExp - %x (B-%x, D-%x, F-%x)\n", PciIoDevice->IsPciExp, PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber));
+  }
+  
+  //
+  // Indicate the pci device is registered
+  //
+  PciIoDevice->Registered = TRUE;
+
+  return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+DeRegisterPciDevice (
+  IN  EFI_HANDLE                     Controller,
+  IN  EFI_HANDLE                     Handle
+  )
+/*++
+
+Routine Description:
+
+  This function is used to de-register the PCI device from the EFI,
+  That includes un-installing PciIo protocol from the specified PCI 
+  device handle.
+
+Arguments:
+
+  Controller   - An efi handle.
+  Handle       - An efi handle.
+
+Returns:
+
+  None
+
+--*/
+{
+  EFI_PCI_IO_PROTOCOL             *PciIo;
+  EFI_STATUS                      Status;
+  PCI_IO_DEVICE                   *PciIoDevice;
+  PCI_IO_DEVICE                   *Node;
+  LIST_ENTRY                  *CurrentLink;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiPciIoProtocolGuid,
+                  (VOID **) &PciIo,
+                  gPciBusDriverBinding.DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (!EFI_ERROR (Status)) {
+    PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (PciIo);
+
+    //
+    // If it is already de-registered
+    //
+    if (!PciIoDevice->Registered) {
+      return EFI_SUCCESS;
+    }
+
+    //
+    // If it is PPB, first de-register its children
+    //
+
+    if (IS_PCI_BRIDGE (&(PciIoDevice->Pci))) {
+
+      CurrentLink = PciIoDevice->ChildList.ForwardLink;
+
+      while (CurrentLink && CurrentLink != &PciIoDevice->ChildList) {
+        Node    = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+        Status  = DeRegisterPciDevice (Controller, Node->Handle);
+
+        if (EFI_ERROR (Status)) {
+          return Status;
+        }
+
+        CurrentLink = CurrentLink->ForwardLink;
+      }
+    }
+
+    //
+    // First disconnect this device
+    //
+//    PciIoDevice->PciIo.Attributes(&(PciIoDevice->PciIo),
+//                                    EfiPciIoAttributeOperationDisable,
+//                                    EFI_PCI_DEVICE_ENABLE,
+//                                    NULL
+//                                    );
+       
+    //
+    // Close the child handle
+    //
+    Status = gBS->CloseProtocol (
+                    Controller,
+                    &gEfiPciRootBridgeIoProtocolGuid,
+                    gPciBusDriverBinding.DriverBindingHandle,
+                    Handle
+                    );
+
+    //
+    // Un-install the device path protocol and pci io protocol
+    //
+    if (PciIoDevice->BusOverride) {
+      Status = gBS->UninstallMultipleProtocolInterfaces (
+                      Handle,
+                      &gEfiDevicePathProtocolGuid,
+                      PciIoDevice->DevicePath,
+                      &gEfiPciIoProtocolGuid,
+                      &PciIoDevice->PciIo,
+                      &gEfiBusSpecificDriverOverrideProtocolGuid,
+                      &PciIoDevice->PciDriverOverride,
+                      NULL
+                      );
+    } else {
+      Status = gBS->UninstallMultipleProtocolInterfaces (
+                      Handle,
+                      &gEfiDevicePathProtocolGuid,
+                      PciIoDevice->DevicePath,
+                      &gEfiPciIoProtocolGuid,
+                      &PciIoDevice->PciIo,
+                      NULL
+                      );
+    }
+
+    if (EFI_ERROR (Status)) {
+      gBS->OpenProtocol (
+            Controller,
+            &gEfiPciRootBridgeIoProtocolGuid,
+            (VOID **) &PciRootBridgeIo,
+            gPciBusDriverBinding.DriverBindingHandle,
+            Handle,
+            EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+            );
+      return Status;
+    }
+    
+    //
+    // The Device Driver should disable this device after disconnect
+    // so the Pci Bus driver will not touch this device any more.
+    // Restore the register field to the original value
+    //
+    PciIoDevice->Registered = FALSE;
+    PciIoDevice->Handle     = NULL;
+  } else {
+
+    //
+    // Handle may be closed before
+    //
+    return EFI_SUCCESS;
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EnableBridgeAttributes (
+  IN PCI_IO_DEVICE                       *PciIoDevice
+  )
+{
+  PCI_TYPE01                PciData;
+
+  //
+  // NOTE: We should not set EFI_PCI_DEVICE_ENABLE for a bridge
+  //       directly, because some legacy BIOS will NOT assign
+  //       IO or Memory resource for a bridge who has no child
+  //       device. So we add check IO or Memory here.
+  //
+
+  PciIoDevice->PciIo.Pci.Read (
+                           &PciIoDevice->PciIo,
+                           EfiPciIoWidthUint8,
+                           0,
+                           sizeof (PciData),
+                           &PciData
+                           );
+
+  if ((((PciData.Bridge.IoBase & 0xF) == 0) &&
+        (PciData.Bridge.IoBase != 0 || PciData.Bridge.IoLimit != 0)) ||
+      (((PciData.Bridge.IoBase & 0xF) == 1) &&
+        ((PciData.Bridge.IoBase & 0xF0) != 0 || (PciData.Bridge.IoLimit & 0xF0) != 0 || PciData.Bridge.IoBaseUpper16 != 0 || PciData.Bridge.IoLimitUpper16 != 0))) {
+    PciIoDevice->PciIo.Attributes(
+                         &(PciIoDevice->PciIo),
+                         EfiPciIoAttributeOperationEnable,
+                         (EFI_PCI_IO_ATTRIBUTE_IO | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER),
+                         NULL
+                         );
+  }
+  if ((PciData.Bridge.MemoryBase & 0xFFF0) != 0 || (PciData.Bridge.MemoryLimit & 0xFFF0) != 0) {
+    PciIoDevice->PciIo.Attributes(
+                         &(PciIoDevice->PciIo),
+                         EfiPciIoAttributeOperationEnable,
+                         (EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER),
+                         NULL
+                         );
+  }
+  if ((((PciData.Bridge.PrefetchableMemoryBase & 0xF) == 0) &&
+        (PciData.Bridge.PrefetchableMemoryBase != 0 || PciData.Bridge.PrefetchableMemoryLimit != 0)) ||
+      (((PciData.Bridge.PrefetchableMemoryBase & 0xF) == 1) &&
+        ((PciData.Bridge.PrefetchableMemoryBase & 0xFFF0) != 0 || (PciData.Bridge.PrefetchableMemoryLimit & 0xFFF0) != 0 || PciData.Bridge.PrefetchableBaseUpper32 != 0 || PciData.Bridge.PrefetchableLimitUpper32 != 0))) {
+    PciIoDevice->PciIo.Attributes(
+                         &(PciIoDevice->PciIo),
+                         EfiPciIoAttributeOperationEnable,
+                         (EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER),
+                         NULL
+                         );
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS 
+StartPciDevicesOnBridge (
+  IN EFI_HANDLE                          Controller,
+  IN PCI_IO_DEVICE                       *RootBridge,
+  IN EFI_DEVICE_PATH_PROTOCOL            *RemainingDevicePath 
+  )
+/*++
+
+Routine Description:
+
+  Start to manage the PCI device on specified the root bridge or PCI-PCI Bridge
+
+Arguments:
+
+  Controller          - An efi handle.
+  RootBridge          - A pointer to the PCI_IO_DEVICE.
+  RemainingDevicePath - A pointer to the EFI_DEVICE_PATH_PROTOCOL.
+  NumberOfChildren    - Children number.
+  ChildHandleBuffer   - A pointer to the child handle buffer.
+
+Returns:
+
+  None
+
+--*/
+{
+  PCI_IO_DEVICE             *Temp;
+  PCI_IO_DEVICE             *PciIoDevice;
+  EFI_DEV_PATH_PTR          Node;
+  EFI_DEVICE_PATH_PROTOCOL  *CurrentDevicePath;
+  EFI_STATUS                Status;
+  LIST_ENTRY            *CurrentLink;
+
+  CurrentLink = RootBridge->ChildList.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &RootBridge->ChildList) {
+
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+    if (RemainingDevicePath != NULL) {
+
+      Node.DevPath = RemainingDevicePath;
+
+      if (Node.Pci->Device != Temp->DeviceNumber || 
+          Node.Pci->Function != Temp->FunctionNumber) {
+        CurrentLink = CurrentLink->ForwardLink;
+        continue;
+      }
+
+      //
+      // Check if the device has been assigned with required resource
+      //
+      if (!Temp->Allocated) {
+        return EFI_NOT_READY;
+      }
+      
+      //
+      // Check if the current node has been registered before
+      // If it is not, register it
+      //
+      if (!Temp->Registered) {
+        PciIoDevice = Temp;
+
+        Status = RegisterPciDevice (
+                  Controller,
+                  PciIoDevice,
+                  NULL
+                  );
+
+      }
+      
+      //
+      // Get the next device path
+      //
+      CurrentDevicePath = NextDevicePathNode (RemainingDevicePath);
+      if (IsDevicePathEnd (CurrentDevicePath)) {
+        return EFI_SUCCESS;
+      }
+  
+      //
+      // If it is a PPB
+      //
+      if (IS_PCI_BRIDGE (&(Temp->Pci))) {
+        Status = StartPciDevicesOnBridge (
+                  Controller,
+                  Temp,
+                  CurrentDevicePath
+                  );
+        EnableBridgeAttributes (Temp);
+
+        return Status;
+      } else {
+
+        //
+        // Currently, the PCI bus driver only support PCI-PCI bridge
+        //
+        return EFI_UNSUPPORTED;
+      }
+
+    } else {
+
+      //
+      // If remaining device path is NULL,
+      // try to enable all the pci devices under this bridge
+      //
+
+      if (!Temp->Registered && Temp->Allocated) {
+
+        PciIoDevice = Temp;
+
+        Status = RegisterPciDevice (
+                  Controller,
+                  PciIoDevice,
+                  NULL
+                  );
+
+      }
+
+      if (IS_PCI_BRIDGE (&(Temp->Pci))) {
+        Status = StartPciDevicesOnBridge ( 
+                   Controller,
+                   Temp,
+                   RemainingDevicePath
+                   );
+        EnableBridgeAttributes (Temp);
+      }
+
+      CurrentLink = CurrentLink->ForwardLink;
+      continue;
+    }
+  }
+
+  return EFI_NOT_FOUND;
+}
+
+EFI_STATUS
+StartPciDevices (
+  IN EFI_HANDLE                         Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL           *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  Start to manage the PCI device according to RemainingDevicePath
+  If RemainingDevicePath == NULL, the PCI bus driver will start 
+  to manage all the PCI devices it found previously
+
+Arguments:
+  Controller          - An efi handle.
+  RemainingDevicePath - A pointer to the EFI_DEVICE_PATH_PROTOCOL.
+
+Returns:
+
+  None
+
+--*/
+{
+  EFI_DEV_PATH_PTR  Node;
+  PCI_IO_DEVICE     *RootBridge;
+  LIST_ENTRY    *CurrentLink;
+
+  if (RemainingDevicePath != NULL) {
+
+    //
+    // Check if the RemainingDevicePath is valid
+    //
+    Node.DevPath = RemainingDevicePath;
+    if (Node.DevPath->Type != HARDWARE_DEVICE_PATH ||
+        Node.DevPath->SubType != HW_PCI_DP         ||
+        DevicePathNodeLength (Node.DevPath) != sizeof (PCI_DEVICE_PATH)
+        ) {
+      return EFI_UNSUPPORTED;
+    }
+  }
+
+  CurrentLink = gPciDevicePool.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &gPciDevicePool) {
+
+    RootBridge = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+    //
+    // Locate the right root bridge to start
+    //
+    if (RootBridge->Handle == Controller) {
+      StartPciDevicesOnBridge (
+        Controller,
+        RootBridge,
+        RemainingDevicePath
+        );
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return EFI_SUCCESS;
+}
+
+PCI_IO_DEVICE *
+CreateRootBridge (
+  IN EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+
+Arguments:
+  RootBridgeHandle   - An efi handle.
+
+Returns:
+
+  None
+
+--*/
+{
+
+  EFI_STATUS                      Status;
+  PCI_IO_DEVICE                   *Dev;
+
+  Dev = NULL;
+  Status = gBS->AllocatePool (
+                  EfiBootServicesData,
+                  sizeof (PCI_IO_DEVICE),
+                  (VOID **) &Dev
+                  );
+
+  if (EFI_ERROR (Status)) {
+    return NULL;
+  }
+
+  ZeroMem (Dev, sizeof (PCI_IO_DEVICE));
+  Dev->Signature  = PCI_IO_DEVICE_SIGNATURE;
+  Dev->Handle     = RootBridgeHandle;
+  InitializeListHead (&Dev->ChildList);
+
+  return Dev;
+}
+
+PCI_IO_DEVICE *
+GetRootBridgeByHandle (
+  EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+
+Arguments:
+
+  RootBridgeHandle    - An efi handle.
+
+Returns:
+
+  None
+
+--*/
+{
+  PCI_IO_DEVICE   *RootBridgeDev;
+  LIST_ENTRY  *CurrentLink;
+
+  CurrentLink = gPciDevicePool.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &gPciDevicePool) {
+
+    RootBridgeDev = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+    if (RootBridgeDev->Handle == RootBridgeHandle) {
+      return RootBridgeDev;
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return NULL;
+}
+
+BOOLEAN
+RootBridgeExisted (
+  IN EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+  This function searches if RootBridgeHandle has already existed
+  in current device pool.
+
+  If so, it means the given root bridge has been already enumerated.
+
+Arguments:
+
+  RootBridgeHandle   - An efi handle.
+
+Returns:
+
+  None
+
+--*/
+{
+  PCI_IO_DEVICE *Bridge;
+
+  Bridge = GetRootBridgeByHandle (RootBridgeHandle);
+
+  if (Bridge != NULL) {
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+BOOLEAN
+PciDeviceExisted (
+  IN PCI_IO_DEVICE    *Bridge,
+  IN PCI_IO_DEVICE    *PciIoDevice
+  )
+/*++
+
+Routine Description:
+  
+Arguments:
+
+  Bridge       - A pointer to the PCI_IO_DEVICE.
+  PciIoDevice  - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+{
+
+  PCI_IO_DEVICE   *Temp;
+  LIST_ENTRY  *CurrentLink;
+
+  CurrentLink = Bridge->ChildList.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &Bridge->ChildList) {
+
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+
+    if (Temp == PciIoDevice) {
+      return TRUE;
+    }
+
+    if (!IsListEmpty (&Temp->ChildList)) {
+      if (PciDeviceExisted (Temp, PciIoDevice)) {
+        return TRUE;
+      }
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return FALSE;
+}
+
+PCI_IO_DEVICE *
+ActiveVGADeviceOnTheSameSegment (
+  IN PCI_IO_DEVICE        *VgaDevice
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+  VgaDevice    - A pointer to the PCI_IO_DEVICE.
+  
+Returns:
+
+  None
+
+--*/
+{
+  LIST_ENTRY  *CurrentLink;
+  PCI_IO_DEVICE   *Temp;
+
+  CurrentLink = gPciDevicePool.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &gPciDevicePool) {
+
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+
+    if (Temp->PciRootBridgeIo->SegmentNumber == VgaDevice->PciRootBridgeIo->SegmentNumber) {
+
+      Temp = ActiveVGADeviceOnTheRootBridge (Temp);
+
+      if (Temp != NULL) {
+        return Temp;
+      }
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return NULL;
+}
+
+PCI_IO_DEVICE *
+ActiveVGADeviceOnTheRootBridge (
+  IN PCI_IO_DEVICE        *RootBridge
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+  RootBridge    - A pointer to the PCI_IO_DEVICE.
+
+Returns:
+
+  None
+
+--*/
+{
+  LIST_ENTRY  *CurrentLink;
+  PCI_IO_DEVICE   *Temp;
+
+  CurrentLink = RootBridge->ChildList.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &RootBridge->ChildList) {
+
+    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+
+    if (IS_PCI_VGA(&Temp->Pci) && 
+        (Temp->Attributes &
+         (EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY |
+          EFI_PCI_IO_ATTRIBUTE_VGA_IO     |
+          EFI_PCI_IO_ATTRIBUTE_VGA_IO_16))) {
+      return Temp;
+    }
+
+    if (IS_PCI_BRIDGE (&Temp->Pci)) {
+
+      Temp = ActiveVGADeviceOnTheRootBridge (Temp);
+
+      if (Temp != NULL) {
+        return Temp;
+      }
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return NULL;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciDeviceSupport.h

@@ -0,0 +1,324 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciDeviceSupport.h
+  
+Abstract:
+
+  
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_DEVICE_SUPPORT_H
+#define _EFI_PCI_DEVICE_SUPPORT_H
+
+EFI_STATUS
+InitializePciDevicePool (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  None
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+InsertPciDevice (
+  PCI_IO_DEVICE *Bridge,
+  PCI_IO_DEVICE *PciDeviceNode
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Bridge        - TODO: add argument description
+  PciDeviceNode - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+DestroyPciDeviceTree (
+  IN PCI_IO_DEVICE *Bridge
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Bridge  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+DestroyRootBridgeByHandle (
+  EFI_HANDLE Controller
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Controller  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+RegisterPciDevice (
+  IN  EFI_HANDLE                     Controller,
+  IN  PCI_IO_DEVICE                  *PciIoDevice,
+  OUT EFI_HANDLE                     *Handle OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  This function registers the PCI IO device. It creates a handle for this PCI IO device 
+  (if the handle does not exist), attaches appropriate protocols onto the handle, does
+  necessary initialization, and sets up parent/child relationship with its bus controller.
+
+Arguments:
+
+  Controller    - An EFI handle for the PCI bus controller.
+  PciIoDevice   - A PCI_IO_DEVICE pointer to the PCI IO device to be registered.
+  Handle        - A pointer to hold the EFI handle for the PCI IO device.
+
+Returns:
+
+  EFI_SUCCESS   - The PCI device is successfully registered.
+  Others        - An error occurred when registering the PCI device.
+
+--*/
+;
+
+EFI_STATUS
+DeRegisterPciDevice (
+  IN  EFI_HANDLE                     Controller,
+  IN  EFI_HANDLE                     Handle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Controller  - TODO: add argument description
+  Handle      - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+StartPciDevices (
+  IN EFI_HANDLE                         Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL           *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Controller          - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+PCI_IO_DEVICE *
+CreateRootBridge (
+  IN EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  RootBridgeHandle  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+PCI_IO_DEVICE *
+GetRootBridgeByHandle (
+  EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  RootBridgeHandle  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS 
+InsertRootBridge (
+  PCI_IO_DEVICE *RootBridge
+);
+
+EFI_STATUS 
+DestroyRootBridge ( 
+   IN PCI_IO_DEVICE *RootBridge 
+);
+
+BOOLEAN
+RootBridgeExisted (
+  IN EFI_HANDLE RootBridgeHandle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  RootBridgeHandle  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+BOOLEAN
+PciDeviceExisted (
+  IN PCI_IO_DEVICE    *Bridge,
+  IN PCI_IO_DEVICE    *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Bridge      - TODO: add argument description
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+PCI_IO_DEVICE *
+ActiveVGADeviceOnTheSameSegment (
+  IN PCI_IO_DEVICE        *VgaDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  VgaDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+PCI_IO_DEVICE *
+ActiveVGADeviceOnTheRootBridge (
+  IN PCI_IO_DEVICE        *RootBridge
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  RootBridge  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciDriverOverride.c

@@ -0,0 +1,176 @@
+/*++
+
+Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciDriverOverride.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+EFI_STATUS
+EFIAPI
+GetDriver(
+  IN     EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL          *This,
+  IN OUT EFI_HANDLE                                         *DriverImageHandle
+  );
+
+
+
+EFI_STATUS
+InitializePciDriverOverrideInstance (
+  PCI_IO_DEVICE  *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  Initializes a PCI Driver Override Instance
+
+Arguments:
+  
+Returns:
+
+  None
+
+--*/
+
+{
+  PciIoDevice->PciDriverOverride.GetDriver = GetDriver;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+GetDriver (
+  IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL              *This,
+  IN OUT EFI_HANDLE                                         *DriverImageHandle
+  )
+/*++
+
+Routine Description:
+
+  Get a overriding driver image
+
+Arguments:
+  
+Returns:
+
+  None
+
+--*/
+{
+  PCI_IO_DEVICE             *PciIoDevice;
+  LIST_ENTRY            *CurrentLink;
+  PCI_DRIVER_OVERRIDE_LIST  *Node;
+
+  PciIoDevice = PCI_IO_DEVICE_FROM_PCI_DRIVER_OVERRIDE_THIS (This);
+
+  CurrentLink = PciIoDevice->OptionRomDriverList.ForwardLink;
+
+  while (CurrentLink && CurrentLink != &PciIoDevice->OptionRomDriverList) {
+
+    Node = DRIVER_OVERRIDE_FROM_LINK (CurrentLink);
+
+    if (*DriverImageHandle == NULL) {
+
+      *DriverImageHandle = Node->DriverImageHandle;
+      return EFI_SUCCESS;
+    }
+
+    if (*DriverImageHandle == Node->DriverImageHandle) {
+
+      if (CurrentLink->ForwardLink == &PciIoDevice->OptionRomDriverList ||
+          CurrentLink->ForwardLink == NULL) {
+        return EFI_NOT_FOUND;
+      }
+
+      //
+      // Get next node
+      //
+      Node                = DRIVER_OVERRIDE_FROM_LINK (CurrentLink->ForwardLink);
+      *DriverImageHandle  = Node->DriverImageHandle;
+      return EFI_SUCCESS;
+    }
+
+    CurrentLink = CurrentLink->ForwardLink;
+  }
+
+  return EFI_INVALID_PARAMETER;
+}
+
+EFI_STATUS
+AddDriver (
+  IN PCI_IO_DEVICE     *PciIoDevice,
+  IN EFI_HANDLE        DriverImageHandle
+  )
+/*++
+
+Routine Description:
+
+  Add a overriding driver image
+
+Arguments:
+  
+Returns:
+
+  None
+
+--*/
+
+{
+  EFI_STATUS                    Status;
+  EFI_LOADED_IMAGE_PROTOCOL     *LoadedImage;
+  PE_COFF_LOADER_IMAGE_CONTEXT  ImageContext;
+  PCI_DRIVER_OVERRIDE_LIST      *Node;
+
+  Status = gBS->HandleProtocol (DriverImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &LoadedImage);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Node = AllocatePool (sizeof (PCI_DRIVER_OVERRIDE_LIST));
+  if (Node == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  Node->Signature         = DRIVER_OVERRIDE_SIGNATURE;
+  Node->DriverImageHandle = DriverImageHandle;
+
+  InsertTailList (&PciIoDevice->OptionRomDriverList, &(Node->Link));
+
+  PciIoDevice->BusOverride  = TRUE;
+
+
+  ImageContext.Handle    = LoadedImage->ImageBase;
+  ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
+
+  //
+  // Get information about the image 
+  //
+  Status = PeCoffLoaderGetImageInfo (&ImageContext);
+  if (EFI_ERROR (Status)) {
+    return EFI_SUCCESS;
+  }
+
+  if (ImageContext.Machine != EFI_IMAGE_MACHINE_EBC) {
+    return EFI_SUCCESS;
+  }
+
+  return EFI_SUCCESS;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciDriverOverride.h

@@ -0,0 +1,110 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciDriverOverride.h
+  
+Abstract:
+
+  
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_DRIVER_OVERRRIDE_H
+#define _EFI_PCI_DRIVER_OVERRRIDE_H
+
+#include "PciBus.h"
+
+#define DRIVER_OVERRIDE_SIGNATURE SIGNATURE_32 ('d', 'r', 'o', 'v')
+
+typedef struct {
+  UINT32          Signature;
+  LIST_ENTRY  Link;
+  EFI_HANDLE      DriverImageHandle;
+} PCI_DRIVER_OVERRIDE_LIST;
+
+
+#define DRIVER_OVERRIDE_FROM_LINK(a) \
+  CR (a, PCI_DRIVER_OVERRIDE_LIST, Link, DRIVER_OVERRIDE_SIGNATURE)
+
+
+EFI_STATUS
+InitializePciDriverOverrideInstance (
+  PCI_IO_DEVICE  *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+AddDriver (
+  IN PCI_IO_DEVICE     *PciIoDevice,
+  IN EFI_HANDLE        DriverImageHandle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice       - TODO: add argument description
+  DriverImageHandle - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+GetDriver (
+  IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL              *This,
+  IN OUT EFI_HANDLE                                         *DriverImageHandle
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - TODO: add argument description
+  DriverImageHandle - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciEnumerator.c

@@ -0,0 +1,57 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciEnumerator.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+EFI_STATUS
+PciEnumerator (
+  IN EFI_HANDLE                    Controller
+  )
+/*++
+
+Routine Description:
+
+  This routine is used to enumerate entire pci bus system 
+  in a given platform
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+{
+  //
+  // This PCI bus driver depends on the legacy BIOS
+  // to do the resource allocation
+  //
+  gFullEnumeration = FALSE;
+
+  return PciEnumeratorLight (Controller) ;
+  
+}
+
+
+
+

UefiPayloadPkg/PciBusNoEnumerationDxe/PciEnumerator.h

@@ -0,0 +1,47 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciEnumerator.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_ENUMERATOR_H
+#define _EFI_PCI_ENUMERATOR_H
+
+EFI_STATUS
+PciEnumerator (
+  IN EFI_HANDLE                    Controller
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Controller  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciEnumeratorSupport.h

@@ -0,0 +1,108 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciEnumeratorSupport.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_ENUMERATOR_SUPPORT_H
+#define _EFI_PCI_ENUMERATOR_SUPPORT_H
+
+#include "PciBus.h"
+
+EFI_STATUS
+PciPciDeviceInfoCollector (
+  IN PCI_IO_DEVICE                      *Bridge,
+  UINT8                                 StartBusNumber
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Bridge          - TODO: add argument description
+  StartBusNumber  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+PciDevicePresent(
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo,
+  PCI_TYPE00                          *Pci,
+  UINT8                               Bus,
+  UINT8                               Device,
+  UINT8                               Func
+);
+
+EFI_STATUS
+PciEnumeratorLight (
+  IN EFI_HANDLE                    Controller
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Controller  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+PciGetBusRange (
+  IN     EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR  **Descriptors,
+  OUT    UINT16                             *MinBus,
+  OUT    UINT16                             *MaxBus,
+  OUT    UINT16                             *BusRange
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Descriptors - TODO: add argument description
+  MinBus      - TODO: add argument description
+  MaxBus      - TODO: add argument description
+  BusRange    - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciIo.h

@@ -0,0 +1,48 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciIo.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_IO_PROTOCOL_H
+#define _EFI_PCI_IO_PROTOCOL_H
+
+EFI_STATUS
+InitializePciIoInstance (
+  PCI_IO_DEVICE  *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciOptionRomSupport.c

@@ -0,0 +1,557 @@
+/*++
+
+Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciOptionRomSupport.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+
+EFI_STATUS
+RomDecode (
+  IN PCI_IO_DEVICE   *PciDevice,
+  IN UINT8           RomBarIndex,
+  IN UINT32          RomBar,
+  IN BOOLEAN         Enable
+);
+
+EFI_STATUS
+GetOpRomInfo (
+  IN PCI_IO_DEVICE    *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+  UINT8                           RomBarIndex;
+  UINT32                          AllOnes;
+  UINT64                          Address;
+  EFI_STATUS                      Status;
+  UINT8                           Bus;
+  UINT8                           Device;
+  UINT8                           Function;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+
+  Bus             = PciIoDevice->BusNumber;
+  Device          = PciIoDevice->DeviceNumber;
+  Function        = PciIoDevice->FunctionNumber;
+
+  PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;
+
+  //
+  // offset is 0x30 if is not ppb
+  //
+
+  //
+  // 0x30
+  //
+  RomBarIndex = PCI_EXPANSION_ROM_BASE;
+
+  if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
+    //
+    // if is ppb
+    //
+
+    //
+    // 0x38
+    //
+    RomBarIndex = PCI_BRIDGE_ROMBAR;
+  }
+  //
+  // the bit0 is 0 to prevent the enabling of the Rom address decoder
+  //
+  AllOnes = 0xfffffffe;
+  Address = EFI_PCI_ADDRESS (Bus, Device, Function, RomBarIndex);
+
+  Status = PciRootBridgeIo->Pci.Write (
+                                  PciRootBridgeIo,
+                                  EfiPciWidthUint32,
+                                  Address,
+                                  1,
+                                  &AllOnes
+                                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  
+  //
+  // read back
+  //
+  Status = PciRootBridgeIo->Pci.Read (
+                                  PciRootBridgeIo,
+                                  EfiPciWidthUint32,
+                                  Address,
+                                  1,
+                                  &AllOnes
+                                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Bits [1, 10] are reserved
+  //
+  AllOnes &= 0xFFFFF800;
+  if ((AllOnes == 0) || (AllOnes == 0xFFFFF800)) {
+    return EFI_NOT_FOUND;
+  }
+  
+  DEBUG ((EFI_D_ERROR, "PCIBUS: GetOpRomInfo: OPROM detected!\n"));
+  DEBUG ((EFI_D_ERROR, "PCIBUS: GetOpRomInfo: B-%x, D-%x, F-%x\n", (UINTN)Bus, (UINTN)Device, (UINTN)Function));
+
+  PciIoDevice->RomSize = (UINT64) ((~AllOnes) + 1);
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+LoadOpRomImage (
+  IN PCI_IO_DEVICE   *PciDevice,
+  IN UINT64          ReservedMemoryBase
+  )
+/*++
+
+Routine Description:
+ 
+    Load option rom image for specified PCI device
+
+Arguments:
+
+Returns:
+
+--*/
+{
+  UINT8                     RomBarIndex;
+  UINT8                     Indicator;
+  UINT16                    OffsetPcir;
+  UINT32                    RomBarOffset;
+  UINT32                    RomBar;
+  EFI_STATUS                retStatus;
+  BOOLEAN                   FirstCheck;
+  UINT8                     *Image;
+  PCI_EXPANSION_ROM_HEADER  *RomHeader;
+  PCI_DATA_STRUCTURE        *RomPcir;
+  UINT64                    RomSize;
+  UINT64                    RomImageSize;
+  UINT32                    LegacyImageLength;
+  UINT8                     *RomInMemory;
+  UINT8                     CodeType;
+
+  RomSize       = PciDevice->RomSize;
+
+  Indicator     = 0;
+  RomImageSize  = 0;
+  RomInMemory   = NULL;
+  CodeType      = 0xFF;
+
+  //
+  // Get the RomBarIndex
+  //
+
+  //
+  // 0x30
+  //
+  RomBarIndex = PCI_EXPANSION_ROM_BASE;
+  if (IS_PCI_BRIDGE (&(PciDevice->Pci))) {
+    //
+    // if is ppb
+    //
+
+    //
+    // 0x38
+    //
+    RomBarIndex = PCI_BRIDGE_ROMBAR;
+  }
+  //
+  // Allocate memory for Rom header and PCIR
+  //
+  RomHeader = AllocatePool (sizeof (PCI_EXPANSION_ROM_HEADER));
+  if (RomHeader == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  RomPcir = AllocatePool (sizeof (PCI_DATA_STRUCTURE));
+  if (RomPcir == NULL) {
+    gBS->FreePool (RomHeader);
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  RomBar = (UINT32)ReservedMemoryBase;  
+
+  //
+  // Enable RomBar
+  //
+  RomDecode (PciDevice, RomBarIndex, RomBar, TRUE);
+
+  RomBarOffset  = RomBar;
+  retStatus     = EFI_NOT_FOUND;
+  FirstCheck    = TRUE;
+  LegacyImageLength = 0;
+
+  do {
+    PciDevice->PciRootBridgeIo->Mem.Read (
+                                      PciDevice->PciRootBridgeIo,
+                                      EfiPciWidthUint8,
+                                      RomBarOffset,
+                                      sizeof (PCI_EXPANSION_ROM_HEADER),
+                                      (UINT8 *) RomHeader
+                                      );
+
+    if (RomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
+      RomBarOffset = RomBarOffset + 512;
+      if (FirstCheck) {
+        break;
+      } else {
+        RomImageSize = RomImageSize + 512;
+        continue;
+      }
+    }
+
+    FirstCheck  = FALSE;
+    OffsetPcir  = RomHeader->PcirOffset;
+    //
+    // If the pointer to the PCI Data Structure is invalid, no further images can be located. 
+    // The PCI Data Structure must be DWORD aligned. 
+    //
+    if (OffsetPcir == 0 ||
+       (OffsetPcir & 3) != 0 ||
+       RomImageSize + OffsetPcir + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
+      break;
+    }
+    PciDevice->PciRootBridgeIo->Mem.Read (
+                                      PciDevice->PciRootBridgeIo,
+                                      EfiPciWidthUint8,
+                                      RomBarOffset + OffsetPcir,
+                                      sizeof (PCI_DATA_STRUCTURE),
+                                      (UINT8 *) RomPcir
+                                      );
+    //
+    // If a valid signature is not present in the PCI Data Structure, no further images can be located.
+    //
+    if (RomPcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
+      break;
+    }
+    if (RomImageSize + RomPcir->ImageLength * 512 > RomSize) {
+      break;
+    }
+    if (RomPcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
+      CodeType = PCI_CODE_TYPE_PCAT_IMAGE;
+      LegacyImageLength = ((UINT32)((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512) * 512;
+    }
+    Indicator     = RomPcir->Indicator;
+    RomImageSize  = RomImageSize + RomPcir->ImageLength * 512;
+    RomBarOffset  = RomBarOffset + RomPcir->ImageLength * 512;
+  } while (((Indicator & 0x80) == 0x00) && ((RomBarOffset - RomBar) < RomSize));
+
+  //
+  // Some Legacy Cards do not report the correct ImageLength so used the maximum
+  // of the legacy length and the PCIR Image Length
+  //
+  if (CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
+    RomImageSize = MAX (RomImageSize, LegacyImageLength);
+  }
+
+  if (RomImageSize > 0) {
+    retStatus = EFI_SUCCESS;
+    Image     = AllocatePool ((UINT32) RomImageSize);
+    if (Image == NULL) {
+      RomDecode (PciDevice, RomBarIndex, RomBar, FALSE);
+      gBS->FreePool (RomHeader);
+      gBS->FreePool (RomPcir);
+      return EFI_OUT_OF_RESOURCES;
+    }
+    
+    //
+    // Copy Rom image into memory
+    //
+    PciDevice->PciRootBridgeIo->Mem.Read (
+                                      PciDevice->PciRootBridgeIo,
+                                      EfiPciWidthUint8,
+                                      RomBar,
+                                      (UINT32) RomImageSize,
+                                      Image
+                                      );
+    RomInMemory = Image;
+  }
+
+  RomDecode (PciDevice, RomBarIndex, RomBar, FALSE);
+
+  PciDevice->PciIo.RomSize  = RomImageSize;
+  PciDevice->PciIo.RomImage = RomInMemory;
+
+  //
+  // Free allocated memory
+  //
+  gBS->FreePool (RomHeader);
+  gBS->FreePool (RomPcir);
+
+  return retStatus;
+}
+
+EFI_STATUS
+RomDecode (
+  IN PCI_IO_DEVICE   *PciDevice,
+  IN UINT8           RomBarIndex,
+  IN UINT32          RomBar,
+  IN BOOLEAN         Enable
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+  UINT16                          CommandValue;
+  UINT32                          Value32;
+  UINT64                          Address;
+  //EFI_STATUS                      Status;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+  
+  PciRootBridgeIo = PciDevice->PciRootBridgeIo;
+  if (Enable) {
+    Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, RomBarIndex);
+    //
+    // set the Rom base address: now is hardcode
+    //
+    PciRootBridgeIo->Pci.Write(
+                               PciRootBridgeIo, 
+                               EfiPciWidthUint32, 
+                               Address, 
+                               1, 
+                               &RomBar);
+  
+    //
+    // enable its decoder
+    //
+    Value32 = RomBar | 0x1;
+    PciRootBridgeIo->Pci.Write(
+                               PciRootBridgeIo, 
+                               EfiPciWidthUint32, 
+                               Address, 
+                               1, 
+                               &Value32);
+    
+    //
+    //setting the memory space bit in the function's command register
+    //
+    Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, 0x04);
+    PciRootBridgeIo->Pci.Read(
+                              PciRootBridgeIo, 
+                              EfiPciWidthUint16, 
+                              Address, 
+                              1, 
+                              &CommandValue);
+    
+    CommandValue = (UINT16)(CommandValue | 0x0002); //0x0003
+    PciRootBridgeIo->Pci.Write(
+                               PciRootBridgeIo, 
+                               EfiPciWidthUint16, 
+                               Address, 
+                               1, 
+                               &CommandValue);
+  } else {
+    //
+    // disable rom decode
+    //  
+    Address = EFI_PCI_ADDRESS (PciDevice->BusNumber, PciDevice->DeviceNumber, PciDevice->FunctionNumber, RomBarIndex);
+    Value32 = 0xfffffffe;
+    PciRootBridgeIo->Pci.Write(
+                               PciRootBridgeIo, 
+                               EfiPciWidthUint32, 
+                               Address, 
+                               1, 
+                               &Value32);
+  }
+
+  return EFI_SUCCESS;
+
+}
+
+EFI_STATUS
+ProcessOpRomImage (
+  PCI_IO_DEVICE   *PciDevice
+  )
+/*++
+
+Routine Description:
+
+  Process the oprom image.
+  
+Arguments:
+  PciDevice       A pointer to a pci device.
+
+Returns:
+
+  EFI Status.
+  
+--*/
+{
+  UINT8                         Indicator;
+  UINT32                        ImageSize;
+  UINT16                        ImageOffset;
+  VOID                          *RomBar;
+  UINT8                         *RomBarOffset;
+  EFI_HANDLE                    ImageHandle;
+  EFI_STATUS                    Status;
+  EFI_STATUS                    retStatus;
+  BOOLEAN                       SkipImage;
+  UINT32                        DestinationSize;
+  UINT32                        ScratchSize;
+  UINT8                         *Scratch;
+  VOID                          *ImageBuffer;
+  VOID                          *DecompressedImageBuffer;
+  UINT32                        ImageLength;
+  EFI_DECOMPRESS_PROTOCOL       *Decompress;
+  EFI_PCI_EXPANSION_ROM_HEADER  *EfiRomHeader;
+  PCI_DATA_STRUCTURE            *Pcir;
+  UINT32                        InitializationSize;
+
+  Indicator = 0;
+
+  //
+  // Get the Address of the Rom image
+  //
+  RomBar        = PciDevice->PciIo.RomImage;
+  RomBarOffset  = (UINT8 *) RomBar;
+  retStatus     = EFI_NOT_FOUND;
+
+  if (RomBarOffset == NULL) {
+    return retStatus;
+  }
+  ASSERT (((EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset)->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE);
+
+  do {
+    EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset;
+    if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
+      RomBarOffset = RomBarOffset + 512;
+      continue;
+    }
+
+    Pcir        = (PCI_DATA_STRUCTURE *) (RomBarOffset + EfiRomHeader->PcirOffset);
+    ASSERT (Pcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
+    ImageSize   = (UINT32) (Pcir->ImageLength * 512);
+    Indicator   = Pcir->Indicator;
+
+    if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
+        (EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
+        ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
+         (EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
+
+      ImageOffset             = EfiRomHeader->EfiImageHeaderOffset;
+      InitializationSize      = EfiRomHeader->InitializationSize * 512;
+
+      if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
+
+        ImageBuffer             = (VOID *) (RomBarOffset + ImageOffset);
+        ImageLength             =  InitializationSize - (UINT32)ImageOffset;
+        DecompressedImageBuffer = NULL;
+
+        //
+        // decompress here if needed
+        //
+        SkipImage = FALSE;
+        if (EfiRomHeader->CompressionType > EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
+          SkipImage = TRUE;
+        }
+
+        if (EfiRomHeader->CompressionType == EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
+          Status = gBS->LocateProtocol (&gEfiDecompressProtocolGuid, NULL, (VOID **) &Decompress);
+          if (EFI_ERROR (Status)) {
+            SkipImage = TRUE;
+          } else {
+            SkipImage = TRUE;
+            Status = Decompress->GetInfo (
+                                  Decompress,
+                                  ImageBuffer,
+                                  ImageLength,
+                                  &DestinationSize,
+                                  &ScratchSize
+                                  );
+            if (!EFI_ERROR (Status)) {
+              DecompressedImageBuffer = NULL;
+              DecompressedImageBuffer = AllocatePool (DestinationSize);
+              if (DecompressedImageBuffer != NULL) {
+                Scratch = AllocatePool (ScratchSize);
+                if (Scratch != NULL) {
+                  Status = Decompress->Decompress (
+                                        Decompress,
+                                        ImageBuffer,
+                                        ImageLength,
+                                        DecompressedImageBuffer,
+                                        DestinationSize,
+                                        Scratch,
+                                        ScratchSize
+                                        );
+                  if (!EFI_ERROR (Status)) {
+                    ImageBuffer = DecompressedImageBuffer;
+                    ImageLength = DestinationSize;
+                    SkipImage   = FALSE;
+                  }
+
+                  gBS->FreePool (Scratch);
+                }
+              }
+            }
+          }
+        }
+
+        if (!SkipImage) {
+          //
+          // load image and start image
+          //
+          Status = gBS->LoadImage (
+                          FALSE,
+                          gPciBusDriverBinding.DriverBindingHandle,
+                          NULL,
+                          ImageBuffer,
+                          ImageLength,
+                          &ImageHandle
+                          );
+          if (!EFI_ERROR (Status)) {
+            Status = gBS->StartImage (ImageHandle, NULL, NULL);
+            if (!EFI_ERROR (Status)) {
+              AddDriver (PciDevice, ImageHandle);
+              retStatus = EFI_SUCCESS;
+            }
+          }
+        }
+
+        RomBarOffset = RomBarOffset + ImageSize;
+      } else {
+        RomBarOffset = RomBarOffset + ImageSize;
+      }
+    } else {
+      RomBarOffset = RomBarOffset + ImageSize;
+    }
+
+  } while (((Indicator & 0x80) == 0x00) && ((UINTN) (RomBarOffset - (UINT8 *) RomBar) < PciDevice->RomSize));
+
+  return retStatus;
+
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciOptionRomSupport.h

@@ -0,0 +1,92 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciOptionRomSupport.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_OP_ROM_SUPPORT_H
+#define _EFI_PCI_OP_ROM_SUPPORT_H
+
+EFI_STATUS
+GetOpRomInfo (
+  IN PCI_IO_DEVICE    *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+LoadOpRomImage (
+  IN PCI_IO_DEVICE   *PciDevice,
+  IN UINT64          ReservedMemoryBase
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciDevice - TODO: add argument description
+  RomBase   - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+ProcessOpRomImage (
+  PCI_IO_DEVICE   *PciDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciPowerManagement.c

@@ -0,0 +1,100 @@
+/*++
+
+Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciPowerManagement.c
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+EFI_STATUS
+EFIAPI
+ResetPowerManagementFeature (
+  IN PCI_IO_DEVICE *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  This function is intended to turn off PWE assertion and
+  put the device to D0 state if the device supports
+  PCI Power Management.
+
+Arguments:
+
+Returns:
+  
+  None
+
+--*/
+{
+  EFI_STATUS  Status;
+  UINT8       PowerManagementRegBlock;
+  UINT16      PowerManagementCSR;
+
+  PowerManagementRegBlock = 0;
+
+  Status = LocateCapabilityRegBlock (
+            PciIoDevice,
+            EFI_PCI_CAPABILITY_ID_PMI,
+            &PowerManagementRegBlock,
+            NULL
+            );
+
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Turn off the PWE assertion and put the device into D0 State
+  //
+
+  //
+  // Read PMCSR
+  //
+  Status = PciIoDevice->PciIo.Pci.Read (
+                                    &PciIoDevice->PciIo,
+                                    EfiPciIoWidthUint16,
+                                    PowerManagementRegBlock + 4,
+                                    1,
+                                    &PowerManagementCSR
+                                    );
+  if (!EFI_ERROR (Status)) {
+    //
+    // Clear PME_Status bit
+    //
+    PowerManagementCSR |= BIT15;
+    //
+    // Clear PME_En bit. PowerState = D0.
+    //
+    PowerManagementCSR &= ~(BIT8 | BIT1 | BIT0);
+
+    //
+    // Write PMCSR
+    //
+    Status = PciIoDevice->PciIo.Pci.Write (
+                                      &PciIoDevice->PciIo,
+                                      EfiPciIoWidthUint16,
+                                      PowerManagementRegBlock + 4,
+                                      1,
+                                      &PowerManagementCSR
+                                      );
+  }
+  return Status;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciPowerManagement.h

@@ -0,0 +1,49 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciPowerManagement.h
+  
+Abstract:
+
+  PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_POWER_MANAGEMENT_H
+#define _EFI_PCI_POWER_MANAGEMENT_H
+
+EFI_STATUS
+EFIAPI
+ResetPowerManagementFeature (
+  IN PCI_IO_DEVICE *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  PciIoDevice - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

UefiPayloadPkg/PciBusNoEnumerationDxe/PciRomTable.c

@@ -0,0 +1,393 @@
+/*++
+
+Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciRomTable.c
+  
+Abstract:
+
+  Option Rom Support for PCI Bus Driver
+
+Revision History
+
+--*/
+
+#include "PciBus.h"
+
+typedef struct {
+  EFI_HANDLE  ImageHandle;
+  UINTN       Seg;
+  UINT8       Bus;
+  UINT8       Dev;
+  UINT8       Func;
+} EFI_PCI_ROM_IMAGE_MAPPING;
+
+UINTN                      mNumberOfPciRomImages     = 0;
+UINTN                      mMaxNumberOfPciRomImages  = 0;
+EFI_PCI_ROM_IMAGE_MAPPING  *mRomImageTable           = NULL;
+
+CHAR16 mHexDigit[17] = L"0123456789ABCDEF";
+
+VOID
+PciRomAddImageMapping (
+  IN EFI_HANDLE  ImageHandle,
+  IN UINTN       Seg,
+  IN UINT8       Bus,
+  IN UINT8       Dev,
+  IN UINT8       Func
+  )
+
+{
+  EFI_PCI_ROM_IMAGE_MAPPING *TempMapping;
+
+  if (mNumberOfPciRomImages >= mMaxNumberOfPciRomImages) {
+
+    mMaxNumberOfPciRomImages += 0x20;
+
+    TempMapping = NULL;
+    TempMapping = AllocatePool (mMaxNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));
+    if (TempMapping == NULL) {
+      return ;
+    }
+
+    CopyMem (TempMapping, mRomImageTable, mNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));
+
+    if (mRomImageTable != NULL) {
+      gBS->FreePool (mRomImageTable);
+    }
+
+    mRomImageTable = TempMapping;
+  }
+
+  mRomImageTable[mNumberOfPciRomImages].ImageHandle = ImageHandle;
+  mRomImageTable[mNumberOfPciRomImages].Seg         = Seg;
+  mRomImageTable[mNumberOfPciRomImages].Bus         = Bus;
+  mRomImageTable[mNumberOfPciRomImages].Dev         = Dev;
+  mRomImageTable[mNumberOfPciRomImages].Func        = Func;
+  mNumberOfPciRomImages++;
+}
+
+VOID
+HexToString (
+  CHAR16  *String,
+  UINTN   Value,
+  UINTN   Digits
+  )
+
+{
+  for (; Digits > 0; Digits--, String++) {
+    *String = mHexDigit[((Value >> (4*(Digits-1))) & 0x0f)];
+  }
+}
+
+EFI_STATUS
+PciRomLoadEfiDriversFromRomImage (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_PCI_OPTION_ROM_DESCRIPTOR  *PciOptionRomDescriptor
+  )
+/*++
+
+Routine Description:
+  Command entry point. 
+
+Arguments:
+  ImageHandle     The image handle. 
+  SystemTable     The system table.
+
+Returns:
+  EFI_SUCCESS             - The command completed successfully
+  EFI_INVALID_PARAMETER   - Command usage error
+  EFI_UNSUPPORTED         - Protocols unsupported
+  EFI_OUT_OF_RESOURCES    - Out of memory
+  Other value             - Unknown error
+
+--*/
+{
+  VOID                          *RomBar;
+  UINTN                         RomSize;
+  CHAR16                        *FileName;
+  EFI_PCI_EXPANSION_ROM_HEADER  *EfiRomHeader;
+  PCI_DATA_STRUCTURE            *Pcir;
+  UINTN                         ImageIndex;
+  UINTN                         RomBarOffset;
+  UINT32                        ImageSize;
+  UINT16                        ImageOffset;
+  EFI_HANDLE                    ImageHandle;
+  EFI_STATUS                    Status;
+  EFI_STATUS                    retStatus;
+  EFI_DEVICE_PATH_PROTOCOL      *FilePath;
+  BOOLEAN                       SkipImage;
+  UINT32                        DestinationSize;
+  UINT32                        ScratchSize;
+  UINT8                         *Scratch;
+  VOID                          *ImageBuffer;
+  VOID                          *DecompressedImageBuffer;
+  UINT32                        ImageLength;
+  EFI_DECOMPRESS_PROTOCOL       *Decompress;
+  UINT32                        InitializationSize;
+
+  RomBar = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;
+  RomSize = (UINTN) PciOptionRomDescriptor->RomLength;
+  FileName = L"PciRom Seg=00000000 Bus=00 Dev=00 Func=00 Image=0000";
+
+  HexToString (&FileName[11], PciOptionRomDescriptor->Seg, 8);
+  HexToString (&FileName[24], PciOptionRomDescriptor->Bus, 2);
+  HexToString (&FileName[31], PciOptionRomDescriptor->Dev, 2);
+  HexToString (&FileName[39], PciOptionRomDescriptor->Func, 2);
+
+  ImageIndex    = 0;
+  retStatus     = EFI_NOT_FOUND;
+  RomBarOffset  = (UINTN) RomBar;
+
+  do {
+
+    EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomBarOffset;
+
+
+    if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
+      return retStatus;
+    }
+
+    //
+    // If the pointer to the PCI Data Structure is invalid, no further images can be located. 
+    // The PCI Data Structure must be DWORD aligned. 
+    //
+    if (EfiRomHeader->PcirOffset == 0 ||
+        (EfiRomHeader->PcirOffset & 3) != 0 ||
+        RomBarOffset - (UINTN)RomBar + EfiRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
+      break;
+    }
+    Pcir      = (PCI_DATA_STRUCTURE *) (UINTN) (RomBarOffset + EfiRomHeader->PcirOffset);
+    //
+    // If a valid signature is not present in the PCI Data Structure, no further images can be located.
+    //
+    if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
+      break;
+    }
+    ImageSize = Pcir->ImageLength * 512;
+    if (RomBarOffset - (UINTN)RomBar + ImageSize > RomSize) {
+      break;
+    }
+
+    if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
+        (EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
+        ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
+         (EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
+
+      ImageOffset             = EfiRomHeader->EfiImageHeaderOffset;
+      InitializationSize      = EfiRomHeader->InitializationSize * 512;
+
+      if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
+
+        ImageBuffer             = (VOID *) (UINTN) (RomBarOffset + ImageOffset);
+        ImageLength             = InitializationSize - ImageOffset;
+        DecompressedImageBuffer = NULL;
+
+        //
+        // decompress here if needed
+        //
+        SkipImage = FALSE;
+        if (EfiRomHeader->CompressionType > EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
+          SkipImage = TRUE;
+        }
+
+        if (EfiRomHeader->CompressionType == EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
+          Status = gBS->LocateProtocol (&gEfiDecompressProtocolGuid, NULL, (VOID **) &Decompress);
+          if (EFI_ERROR (Status)) {
+            SkipImage = TRUE;
+          } else {
+            SkipImage = TRUE;
+            Status = Decompress->GetInfo (
+                                  Decompress,
+                                  ImageBuffer,
+                                  ImageLength,
+                                  &DestinationSize,
+                                  &ScratchSize
+                                  );
+            if (!EFI_ERROR (Status)) {
+              DecompressedImageBuffer = NULL;
+              DecompressedImageBuffer = AllocatePool (DestinationSize);
+              if (DecompressedImageBuffer != NULL) {
+                Scratch = AllocatePool (ScratchSize);
+                if (Scratch != NULL) {
+                  Status = Decompress->Decompress (
+                                        Decompress,
+                                        ImageBuffer,
+                                        ImageLength,
+                                        DecompressedImageBuffer,
+                                        DestinationSize,
+                                        Scratch,
+                                        ScratchSize
+                                        );
+                  if (!EFI_ERROR (Status)) {
+                    ImageBuffer = DecompressedImageBuffer;
+                    ImageLength = DestinationSize;
+                    SkipImage   = FALSE;
+                  }
+
+                  gBS->FreePool (Scratch);
+                }
+              }
+            }
+          }
+        }
+
+        if (!SkipImage) {
+
+          //
+          // load image and start image
+          //
+
+          HexToString (&FileName[48], ImageIndex, 4);
+          FilePath = FileDevicePath (NULL, FileName);
+
+          Status = gBS->LoadImage (
+                          FALSE,
+                          This->ImageHandle,
+                          FilePath,
+                          ImageBuffer,
+                          ImageLength,
+                          &ImageHandle
+                          );
+          if (!EFI_ERROR (Status)) {
+            Status = gBS->StartImage (ImageHandle, NULL, NULL);
+            if (!EFI_ERROR (Status)) {
+              PciRomAddImageMapping (
+                ImageHandle,
+                PciOptionRomDescriptor->Seg,
+                PciOptionRomDescriptor->Bus,
+                PciOptionRomDescriptor->Dev,
+                PciOptionRomDescriptor->Func
+                );
+              retStatus = Status;
+            }
+          }
+          if (FilePath != NULL) {
+            gBS->FreePool (FilePath);
+          }
+        }
+
+        if (DecompressedImageBuffer != NULL) {
+          gBS->FreePool (DecompressedImageBuffer);
+        }
+
+      }
+    }
+
+    RomBarOffset = RomBarOffset + ImageSize;
+    ImageIndex++;
+  } while (((Pcir->Indicator & 0x80) == 0x00) && ((RomBarOffset - (UINTN) RomBar) < RomSize));
+
+  return retStatus;
+}
+
+EFI_STATUS
+PciRomLoadEfiDriversFromOptionRomTable (
+  IN EFI_DRIVER_BINDING_PROTOCOL      *This,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+  EFI_STATUS                        Status;
+  EFI_PCI_OPTION_ROM_TABLE          *PciOptionRomTable;
+  EFI_PCI_OPTION_ROM_DESCRIPTOR     *PciOptionRomDescriptor;
+  UINTN                             Index;
+  EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
+  UINT16                            MinBus;
+  UINT16                            MaxBus;
+
+  Status = EfiGetSystemConfigurationTable (&gEfiPciOptionRomTableGuid, (VOID **) &PciOptionRomTable);
+  if (EFI_ERROR (Status)) {
+    return EFI_NOT_FOUND;
+  }
+
+  Status = EFI_NOT_FOUND;
+
+  for (Index = 0; Index < PciOptionRomTable->PciOptionRomCount; Index++) {
+    PciOptionRomDescriptor = &PciOptionRomTable->PciOptionRomDescriptors[Index];
+    if (!PciOptionRomDescriptor->DontLoadEfiRom) {
+      if (PciOptionRomDescriptor->Seg == PciRootBridgeIo->SegmentNumber) {
+        Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Descriptors);
+        if (EFI_ERROR (Status)) {
+          return Status;
+        }
+
+        PciGetBusRange (&Descriptors, &MinBus, &MaxBus, NULL);
+        if ((MinBus <= PciOptionRomDescriptor->Bus) && (PciOptionRomDescriptor->Bus <= MaxBus)) {
+          Status = PciRomLoadEfiDriversFromRomImage (This, PciOptionRomDescriptor);
+          PciOptionRomDescriptor->DontLoadEfiRom |= 2;
+        }
+      }
+    }
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+PciRomGetRomResourceFromPciOptionRomTable (
+  IN EFI_DRIVER_BINDING_PROTOCOL      *This,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo,
+  PCI_IO_DEVICE                       *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+  EFI_STATUS                    Status;
+  EFI_PCI_OPTION_ROM_TABLE      *PciOptionRomTable;
+  EFI_PCI_OPTION_ROM_DESCRIPTOR *PciOptionRomDescriptor;
+  UINTN                         Index;
+
+  Status = EfiGetSystemConfigurationTable (&gEfiPciOptionRomTableGuid, (VOID **) &PciOptionRomTable);
+  if (EFI_ERROR (Status)) {
+    return EFI_NOT_FOUND;
+  }
+
+  for (Index = 0; Index < PciOptionRomTable->PciOptionRomCount; Index++) {
+    PciOptionRomDescriptor = &PciOptionRomTable->PciOptionRomDescriptors[Index];
+    if (PciOptionRomDescriptor->Seg == PciRootBridgeIo->SegmentNumber &&
+        PciOptionRomDescriptor->Bus == PciIoDevice->BusNumber         &&
+        PciOptionRomDescriptor->Dev == PciIoDevice->DeviceNumber      &&
+        PciOptionRomDescriptor->Func == PciIoDevice->FunctionNumber ) {
+
+      PciIoDevice->PciIo.RomImage = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;
+      PciIoDevice->PciIo.RomSize  = (UINTN) PciOptionRomDescriptor->RomLength;
+    }
+  }
+
+  for (Index = 0; Index < mNumberOfPciRomImages; Index++) {
+    if (mRomImageTable[Index].Seg  == PciRootBridgeIo->SegmentNumber &&
+        mRomImageTable[Index].Bus  == PciIoDevice->BusNumber         &&
+        mRomImageTable[Index].Dev  == PciIoDevice->DeviceNumber      &&
+        mRomImageTable[Index].Func == PciIoDevice->FunctionNumber    ) {
+
+      AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle);
+    }
+  }
+
+  return EFI_SUCCESS;
+}

UefiPayloadPkg/PciBusNoEnumerationDxe/PciRomTable.h

@@ -0,0 +1,58 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  PciRomTable.h
+  
+Abstract:
+
+  Option Rom Support for PCI Bus Driver
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_ROM_TABLE_H
+#define _EFI_PCI_ROM_TABLE_H
+
+
+EFI_STATUS
+PciRomLoadEfiDriversFromOptionRomTable (
+  IN EFI_DRIVER_BINDING_PROTOCOL      *This,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo
+  );
+
+EFI_STATUS
+PciRomGetRomResourceFromPciOptionRomTable (
+  IN EFI_DRIVER_BINDING_PROTOCOL      *This,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo,
+  PCI_IO_DEVICE                       *PciIoDevice
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This            - TODO: add argument description
+  PciRootBridgeIo - TODO: add argument description
+  PciIoDevice     - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+#endif

UefiPayloadPkg/PciPlatformDxe/PciPlatformDxe.c

@@ -0,0 +1,365 @@
+/** @file
+  Implementation for a generic GOP driver.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+
+**/
+
+#include "PciPlatformDxe.h"
+#include <Bus/Pci/PciBusDxe/PciBus.h>
+#include <Bus/Pci/PciBusDxe/PciOptionRomSupport.h>
+
+//
+// The driver should only start on one graphics controller.
+// So a global flag is used to remember that the driver is already started.
+//
+EFI_HANDLE      mDriverHandle = NULL;
+
+EFI_STATUS
+EFIAPI
+PciPlatformNotify(
+  IN EFI_PCI_PLATFORM_PROTOCOL                      *This,
+  IN EFI_HANDLE                                     HostBridge,
+  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE  Phase,
+  IN EFI_PCI_EXECUTION_PHASE                        ExecPhase
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+PciPlatformPrepController(
+  IN EFI_PCI_PLATFORM_PROTOCOL                     *This,
+  IN EFI_HANDLE                                    HostBridge,
+  IN EFI_HANDLE                                    RootBridge,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS   PciAddress,
+  IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE  Phase,
+  IN EFI_PCI_EXECUTION_PHASE                       ExecPhase
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+PciGetPciRom (
+  IN  CONST EFI_PCI_PLATFORM_PROTOCOL  *This,
+  IN        EFI_HANDLE                 PciHandle,
+  OUT       VOID                       **RomImage,
+  OUT       UINTN                      *RomSize
+  )
+{
+  EFI_STATUS                           Status;
+  IN EFI_PCI_IO_PROTOCOL               *PciIo;
+  UINTN                                PciSegment;
+  UINTN                                PciBus;
+  UINTN                                PciDevice;
+  UINTN                                PciFunction;
+  UINTN                                RomBarIndex;
+  UINT32                               Buffer;
+  UINT32                               AllOnes;
+  PCI_IO_DEVICE                        *PciIoDevice;
+  UINT8                                Indicator;
+  UINT16                               OffsetPcir;
+  UINT32                               RomBarOffset;
+  UINT32                               RomBar;
+  BOOLEAN                              FirstCheck;
+  PCI_EXPANSION_ROM_HEADER             *RomHeader;
+  PCI_DATA_STRUCTURE                   *RomPcir;
+  UINT64                               RomImageSize;
+  UINT32                               LegacyImageLength;
+  UINT8                                *RomInMemory;
+  UINT8                                CodeType;
+
+  if (!RomImage || !RomSize) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *RomImage = NULL;
+  *RomSize = 0;
+
+  Status = gBS->HandleProtocol (
+                  PciHandle,
+                  &gEfiPciIoProtocolGuid,
+                  (VOID **) &PciIo
+                  );
+  if (EFI_ERROR (Status)) {
+      DEBUG ((EFI_D_INFO, "%a: Failed to open gEfiPciIoProtocolGuid\n", __FUNCTION__));
+
+    return EFI_UNSUPPORTED;
+  }
+  PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (PciIo);
+
+  //
+  // Get the location of the PCI device
+  //
+  PciIo->GetLocation (
+           PciIo,
+           &PciSegment,
+           &PciBus,
+           &PciDevice,
+           &PciFunction
+           );
+
+  DEBUG ((EFI_D_INFO, "%a: Searching Option ROM on device:\n", __FUNCTION__));
+  DEBUG ((EFI_D_INFO, " PciSegment         - %02x\n", PciSegment));
+  DEBUG ((EFI_D_INFO, " PciBus             - %02x\n", PciBus));
+  DEBUG ((EFI_D_INFO, " PciDevice          - %02x\n", PciDevice));
+  DEBUG ((EFI_D_INFO, " PciFunction        - %02x\n", PciFunction));
+
+  //
+  // 0x30
+  //
+  RomBarIndex = PCI_EXPANSION_ROM_BASE;
+
+  if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
+    //
+    // If is ppb, 0x38
+    //
+    RomBarIndex = PCI_BRIDGE_ROMBAR;
+  }
+  //
+  // Backup BAR
+  //
+
+  Status = PciIo->Pci.Read (
+                          PciIo,
+                          EfiPciWidthUint32,
+                          RomBarIndex,
+                          1,
+                          &Buffer
+                          );
+  if (EFI_ERROR (Status)) {
+    goto CloseAndReturn;
+    return Status;
+  }
+
+  //
+  // The bit0 is 0 to prevent the enabling of the Rom address decoder
+  //
+  AllOnes = 0xfffffffe;
+
+  Status = PciIo->Pci.Write (
+                            PciIo,
+                            EfiPciWidthUint32,
+                            RomBarIndex,
+                            1,
+                            &AllOnes
+                            );
+  if (EFI_ERROR (Status)) {
+    goto CloseAndReturn;
+  }
+
+  //
+  // Read back
+  //
+  Status = PciIo->Pci.Read(
+                          PciIo,
+                          EfiPciWidthUint32,
+                          RomBarIndex,
+                          1,
+                          &AllOnes
+                          );
+  if (EFI_ERROR (Status)) {
+    goto CloseAndReturn;
+  }
+
+  //
+  // Bits [1, 10] are reserved
+  //
+  AllOnes &= 0xFFFFF800;
+  if ((AllOnes == 0) || (AllOnes == 0xFFFFF800)) {
+    DEBUG ((EFI_D_INFO, "%a: No Option ROM found\n", __FUNCTION__));
+    return EFI_NOT_FOUND;
+  }
+
+  *RomSize = (~AllOnes) + 1;
+
+  DEBUG ((EFI_D_INFO, "%a: Option ROM with size %d\n", __FUNCTION__, *RomSize));
+
+  //
+  // Restore BAR and enable it
+  //
+  Buffer |= 1;
+  Status = PciIo->Pci.Write (
+                            PciIo,
+                            EfiPciWidthUint32,
+                            RomBarIndex,
+                            1,
+                            &Buffer
+                            );
+  if (EFI_ERROR (Status)) {
+    goto CloseAndReturn;
+  }
+
+  //
+  // Allocate memory for Rom header and PCIR
+  //
+  RomHeader = AllocatePool (sizeof (PCI_EXPANSION_ROM_HEADER));
+  if (RomHeader == NULL) {
+    Status = EFI_OUT_OF_RESOURCES;
+    goto CloseAndReturn;
+  }
+
+  RomPcir = AllocatePool (sizeof (PCI_DATA_STRUCTURE));
+  if (RomPcir == NULL) {
+    FreePool (RomHeader);
+    Status = EFI_OUT_OF_RESOURCES;
+    goto CloseAndReturn;
+  }
+
+  // FIXME: Use gEfiPciRootBridgeIoProtocolGuid
+  RomBar = (UINT32) Buffer &~1;
+
+  RomBarOffset  = RomBar;
+  FirstCheck    = TRUE;
+  LegacyImageLength = 0;
+  RomImageSize = 0;
+
+  do {
+    // FIXME: Use gEfiPciRootBridgeIoProtocolGuid
+    CopyMem(RomHeader, (VOID *)(UINTN)RomBarOffset, sizeof (PCI_EXPANSION_ROM_HEADER));
+
+    DEBUG ((EFI_D_INFO, "%a: RomHeader->Signature %x\n", __FUNCTION__, RomHeader->Signature));
+
+    if (RomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
+
+      RomBarOffset = RomBarOffset + 512;
+      if (FirstCheck) {
+        break;
+      } else {
+        RomImageSize = RomImageSize + 512;
+        continue;
+      }
+    }
+
+    FirstCheck  = FALSE;
+    OffsetPcir  = RomHeader->PcirOffset;
+    //
+    // If the pointer to the PCI Data Structure is invalid, no further images can be located.
+    // The PCI Data Structure must be DWORD aligned.
+    //
+    if (OffsetPcir == 0 ||
+        (OffsetPcir & 3) != 0 ||
+        RomImageSize + OffsetPcir + sizeof (PCI_DATA_STRUCTURE) > *RomSize) {
+      break;
+    }
+    // FIXME: Use gEfiPciRootBridgeIoProtocolGuid
+    CopyMem(RomPcir, (VOID *)(UINTN)RomBarOffset + OffsetPcir, sizeof (PCI_DATA_STRUCTURE));
+
+    DEBUG ((EFI_D_INFO, "%a: RomPcir->Signature %x\n", __FUNCTION__, RomPcir->Signature));
+
+    //
+    // If a valid signature is not present in the PCI Data Structure, no further images can be located.
+    //
+    if (RomPcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
+      break;
+    }
+    if (RomImageSize + RomPcir->ImageLength * 512 > *RomSize) {
+      break;
+    }
+    if (RomPcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
+      CodeType = PCI_CODE_TYPE_PCAT_IMAGE;
+      LegacyImageLength = ((UINT32)((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512) * 512;
+    }
+    Indicator     = RomPcir->Indicator;
+    RomImageSize  = RomImageSize + RomPcir->ImageLength * 512;
+    RomBarOffset  = RomBarOffset + RomPcir->ImageLength * 512;
+  } while (((Indicator & 0x80) == 0x00) && ((RomBarOffset - RomBar) < *RomSize));
+
+  //
+  // Some Legacy Cards do not report the correct ImageLength so used the maximum
+  // of the legacy length and the PCIR Image Length
+  //
+  if (CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
+    RomImageSize = MAX (RomImageSize, LegacyImageLength);
+  }
+
+  if (RomImageSize > 0) {
+    // FIXME: Use gEfiPciRootBridgeIoProtocolGuid
+    RomInMemory = (VOID *)(UINTN)RomBar;
+  }
+
+  //
+  // Free allocated memory
+  //
+  FreePool (RomHeader);
+  FreePool (RomPcir);
+
+  if (RomImageSize > 0) {
+    *RomImage = RomInMemory;
+    *RomSize = RomImageSize;
+    DEBUG ((EFI_D_INFO, "%a: Found Option ROM at %p, length 0x%x\n", __FUNCTION__,
+        RomInMemory, RomImageSize));
+
+    Status = EFI_SUCCESS;
+  } else {
+    Status = EFI_NOT_FOUND;
+  }
+
+CloseAndReturn:
+  //
+  // Close the I/O Abstraction(s) used to perform the supported test
+  //
+  gBS->CloseProtocol (
+        PciHandle,
+        &gEfiPciIoProtocolGuid,
+        PciIo,
+        PciHandle
+        );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+PciGetPlatformPolicy (
+  IN  CONST EFI_PCI_PLATFORM_PROTOCOL  *This,
+  OUT       EFI_PCI_PLATFORM_POLICY    *PciPolicy
+  )
+{
+  if (PciPolicy == NULL)
+    return EFI_INVALID_PARAMETER;
+
+  *PciPolicy = 0;
+
+  return EFI_SUCCESS;
+}
+
+EFI_PCI_PLATFORM_PROTOCOL                     mPciPlatformProtocol = {
+  PciPlatformNotify,
+  PciPlatformPrepController,
+  PciGetPlatformPolicy,
+  PciGetPciRom,
+};
+
+/**
+  The Entry Point for Option ROM driver.
+
+  It installs DriverBinding.
+
+  @retval EFI_SUCCESS       The entry point is executed successfully.
+  @retval other             Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+InstallPciPlatformProtocol (
+  IN EFI_HANDLE                        ImageHandle,
+  IN EFI_SYSTEM_TABLE                  *SystemTable
+  )
+{
+  EFI_STATUS                           Status;
+
+  Status = gBS->InstallProtocolInterface (
+                  &mDriverHandle,
+                  &gEfiPciPlatformProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mPciPlatformProtocol
+                  );
+
+  return Status;
+}

UefiPayloadPkg/PciPlatformDxe/PciPlatformDxe.h

@@ -0,0 +1,19 @@
+/** @file
+  Header file for a PCI platform driver.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+
+**/
+#ifndef _PCI_PLATFORM_DXE_H_
+#define _PCI_PLATFORM_DXE_H_
+#include <PiDxe.h>
+
+#include <IndustryStandard/Pci.h>
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/Pci22.h>
+#include <Protocol/PciIo.h>
+#include <Protocol/PciPlatform.h>
+
+#endif

UefiPayloadPkg/PciPlatformDxe/PciPlatformDxe.inf

@@ -0,0 +1,46 @@
+## @file
+# This driver produces gEfiPciPlatform protocol to load PCI Option ROMs
+#
+# Copyright (c) 2020, 9elements Agency GmbH
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PciPlatformDxe
+  FILE_GUID                      = 86D58F7B-6E7C-401F-BDD4-E32E6D582AAD
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = InstallPciPlatformProtocol
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64
+#
+
+[Sources.common]
+  PciPlatformDxe.h
+  PciPlatformDxe.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  UefiDriverEntryPoint
+  UefiBootServicesTableLib
+  DxeServicesTableLib
+  DebugLib
+  MemoryAllocationLib
+  BaseMemoryLib
+  DevicePathLib
+  UefiLib
+  HobLib
+
+[Protocols]
+  gEfiPciPlatformProtocolGuid                   ## PRODUCES
+  gEfiPciIoProtocolGuid                         ## COMSUMES

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/DeviceIo.c

@@ -0,0 +1,845 @@
+/*++
+
+Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+    DeviceIo.c
+    
+Abstract:
+
+    EFI PC-AT PCI Device IO driver
+
+--*/
+#include "PcatPciRootBridge.h"
+#include "DeviceIo.h"
+
+EFI_STATUS
+DeviceIoConstructor (
+  IN EFI_HANDLE                      Handle,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
+  IN EFI_DEVICE_PATH_PROTOCOL        *DevicePath,
+  IN UINT16                          PrimaryBus,
+  IN UINT16                          SubordinateBus
+  )
+/*++
+
+Routine Description:
+  
+  Initialize and install a Device IO protocol on a empty device path handle.
+
+Arguments:
+  
+  Handle               - Handle of PCI RootBridge IO instance
+  PciRootBridgeIo      - PCI RootBridge IO instance
+  DevicePath           - Device Path of PCI RootBridge IO instance
+  PrimaryBus           - Primary Bus
+  SubordinateBus       - Subordinate Bus
+
+Returns:
+  
+  EFI_SUCCESS          -  This driver is added to ControllerHandle.  
+  EFI_ALREADY_STARTED  -  This driver is already running on ControllerHandle.   
+  Others               -  This driver does not support this device.
+
+--*/
+{
+  EFI_STATUS                      Status;
+  DEVICE_IO_PRIVATE_DATA          *Private;
+
+  //
+  // Initialize the Device IO device instance.
+  //
+  Private = AllocateZeroPool (sizeof (DEVICE_IO_PRIVATE_DATA));
+  if (Private == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  Private->Signature                = DEVICE_IO_PRIVATE_DATA_SIGNATURE;
+  Private->Handle                   = Handle;
+  Private->PciRootBridgeIo          = PciRootBridgeIo;
+  Private->DevicePath               = DevicePath;
+  Private->PrimaryBus               = PrimaryBus;
+  Private->SubordinateBus           = SubordinateBus;
+
+  Private->DeviceIo.Mem.Read        = DeviceIoMemRead;
+  Private->DeviceIo.Mem.Write       = DeviceIoMemWrite;
+  Private->DeviceIo.Io.Read         = DeviceIoIoRead;
+  Private->DeviceIo.Io.Write        = DeviceIoIoWrite;
+  Private->DeviceIo.Pci.Read        = DeviceIoPciRead;
+  Private->DeviceIo.Pci.Write       = DeviceIoPciWrite;
+  Private->DeviceIo.PciDevicePath   = DeviceIoPciDevicePath;
+  Private->DeviceIo.Map             = DeviceIoMap;
+  Private->DeviceIo.Unmap           = DeviceIoUnmap;
+  Private->DeviceIo.AllocateBuffer  = DeviceIoAllocateBuffer;
+  Private->DeviceIo.Flush           = DeviceIoFlush;
+  Private->DeviceIo.FreeBuffer      = DeviceIoFreeBuffer;
+
+  //
+  // Install protocol interfaces for the Device IO device.
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Private->Handle,
+                  &gEfiDeviceIoProtocolGuid,
+                  &Private->DeviceIo,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoMemRead (
+  IN     EFI_DEVICE_IO_PROTOCOL   *This,
+  IN     EFI_IO_WIDTH             Width,
+  IN     UINT64                   Address,
+  IN     UINTN                    Count,
+  IN OUT VOID                     *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading memory mapped I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations.  
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.           
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.  
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Width > MMIO_COPY_UINT64) {
+    return EFI_INVALID_PARAMETER;
+  }
+  if (Width >= MMIO_COPY_UINT8) {
+    Width = (EFI_IO_WIDTH) (Width - MMIO_COPY_UINT8);
+    Status = Private->PciRootBridgeIo->CopyMem (
+                                         Private->PciRootBridgeIo,
+                                         (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                         (UINT64)(UINTN) Buffer,
+                                         Address,
+                                         Count
+                                         );
+  } else {
+    Status = Private->PciRootBridgeIo->Mem.Read (
+                                             Private->PciRootBridgeIo,
+                                             (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                             Address,
+                                             Count,
+                                             Buffer
+                                             );
+  }
+
+  return Status;
+}
+
+
+
+EFI_STATUS
+EFIAPI
+DeviceIoMemWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL    *This,
+  IN     EFI_IO_WIDTH              Width,
+  IN     UINT64                    Address,
+  IN     UINTN                     Count,
+  IN OUT VOID                      *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing memory mapped I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.  
+  Address  -  The base address of I/O operations.   
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.            
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Width > MMIO_COPY_UINT64) {
+    return EFI_INVALID_PARAMETER;
+  }
+  if (Width >= MMIO_COPY_UINT8) {
+    Width = (EFI_IO_WIDTH) (Width - MMIO_COPY_UINT8);
+    Status = Private->PciRootBridgeIo->CopyMem (
+                                         Private->PciRootBridgeIo,
+                                         (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                         Address,
+                                         (UINT64)(UINTN) Buffer,
+                                         Count
+                                         );
+  } else {
+    Status = Private->PciRootBridgeIo->Mem.Write (
+                                             Private->PciRootBridgeIo,
+                                             (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                             Address,
+                                             Count,
+                                             Buffer
+                                             );
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoIoRead (
+  IN     EFI_DEVICE_IO_PROTOCOL   *This,
+  IN     EFI_IO_WIDTH             Width,
+  IN     UINT64                   Address,
+  IN     UINTN                    Count,
+  IN OUT VOID                     *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.          
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Width >= MMIO_COPY_UINT8) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = Private->PciRootBridgeIo->Io.Read (
+                                          Private->PciRootBridgeIo,
+                                          (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                          Address,
+                                          Count,
+                                          Buffer
+                                          );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoIoWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL    *This,
+  IN     EFI_IO_WIDTH              Width,
+  IN     UINT64                    Address,
+  IN     UINTN                     Count,
+  IN OUT VOID                      *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations.
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.        
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Width >= MMIO_COPY_UINT8) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = Private->PciRootBridgeIo->Io.Write (
+                                          Private->PciRootBridgeIo,
+                                          (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                          Address,
+                                          Count,
+                                          Buffer
+                                          );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciRead (
+  IN     EFI_DEVICE_IO_PROTOCOL   *This,
+  IN     EFI_IO_WIDTH             Width,
+  IN     UINT64                   Address,
+  IN     UINTN                    Count,
+  IN OUT VOID                     *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading PCI configuration space of device
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations. 
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.           
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if ((UINT32)Width >= MMIO_COPY_UINT8) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = Private->PciRootBridgeIo->Pci.Read (
+                                           Private->PciRootBridgeIo,
+                                           (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                           Address,
+                                           Count,
+                                           Buffer
+                                           );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL    *This,
+  IN     EFI_IO_WIDTH              Width,
+  IN     UINT64                    Address,
+  IN     UINTN                     Count,
+  IN OUT VOID                      *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing PCI configuration space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.   
+  Width    -  Width of I/O operations. 
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.         
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if ((UINT32)Width >= MMIO_COPY_UINT8) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = Private->PciRootBridgeIo->Pci.Write (
+                                           Private->PciRootBridgeIo,
+                                           (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
+                                           Address,
+                                           Count,
+                                           Buffer
+                                           );
+
+  return Status;
+}
+
+EFI_DEVICE_PATH_PROTOCOL *
+AppendPciDevicePath (
+  IN     DEVICE_IO_PRIVATE_DATA    *Private,
+  IN     UINT8                     Bus,
+  IN     UINT8                     Device,
+  IN     UINT8                     Function,
+  IN     EFI_DEVICE_PATH_PROTOCOL  *DevicePath,
+  IN OUT UINT16                    *BridgePrimaryBus,
+  IN OUT UINT16                    *BridgeSubordinateBus
+  )
+/*++
+
+Routine Description:
+  
+  Append a PCI device path node to another device path.
+
+Arguments:
+  
+  Private               -  A pointer to DEVICE_IO_PRIVATE_DATA instance.  
+  Bus                   -  PCI bus number of the device.
+  Device                -  PCI device number of the device.
+  Function              -  PCI function number of the device.
+  DevicePath            -  Original device path which will be appended a PCI device path node.
+  BridgePrimaryBus      -  Primary bus number of the bridge.
+  BridgeSubordinateBus  -  Subordinate bus number of the bridge.
+
+Returns:
+  
+  Pointer to the appended PCI device path.
+
+--*/
+{
+  UINT16                    ThisBus;
+  UINT8                     ThisDevice;
+  UINT8                     ThisFunc;
+  UINT64                    Address;
+  PCI_TYPE01                PciBridge;
+  PCI_TYPE01                *PciPtr;
+  EFI_DEVICE_PATH_PROTOCOL  *ReturnDevicePath;
+  PCI_DEVICE_PATH           PciNode;
+
+  PciPtr = &PciBridge;
+  for (ThisBus = *BridgePrimaryBus; ThisBus <= *BridgeSubordinateBus; ThisBus++) {
+    for (ThisDevice = 0; ThisDevice <= PCI_MAX_DEVICE; ThisDevice++) {
+      for (ThisFunc = 0; ThisFunc <= PCI_MAX_FUNC; ThisFunc++) {
+        Address = EFI_PCI_ADDRESS (ThisBus, ThisDevice, ThisFunc, 0);
+        ZeroMem (PciPtr, sizeof (PCI_TYPE01));
+        Private->DeviceIo.Pci.Read (
+                                &Private->DeviceIo,
+                                IO_UINT32,
+                                Address,
+                                1,
+                                &(PciPtr->Hdr.VendorId)
+                                );
+        if ((PciPtr->Hdr.VendorId == 0xffff) && (ThisFunc == 0)) {
+          break;
+        }
+        if (PciPtr->Hdr.VendorId == 0xffff) {
+          continue;
+        }
+
+        Private->DeviceIo.Pci.Read (
+                                &Private->DeviceIo,
+                                IO_UINT32,
+                                Address,
+                                sizeof (PCI_TYPE01) / sizeof (UINT32),
+                                PciPtr
+                                );
+        if (IS_PCI_BRIDGE (PciPtr)) {
+          if (Bus >= PciPtr->Bridge.SecondaryBus && Bus <= PciPtr->Bridge.SubordinateBus) {
+
+            PciNode.Header.Type     = HARDWARE_DEVICE_PATH;
+            PciNode.Header.SubType  = HW_PCI_DP;
+            SetDevicePathNodeLength (&PciNode.Header, sizeof (PciNode));
+
+            PciNode.Device        = ThisDevice;
+            PciNode.Function      = ThisFunc;
+            ReturnDevicePath      = AppendDevicePathNode (DevicePath, &PciNode.Header);
+
+            *BridgePrimaryBus     = PciPtr->Bridge.SecondaryBus;
+            *BridgeSubordinateBus = PciPtr->Bridge.SubordinateBus;
+            return ReturnDevicePath;
+          }
+        }
+
+        if ((ThisFunc == 0) && ((PciPtr->Hdr.HeaderType & HEADER_TYPE_MULTI_FUNCTION) == 0x0)) {
+          //
+          // Skip sub functions, this is not a multi function device
+          //
+          break;
+        }
+      }
+    }
+  }
+
+  ZeroMem (&PciNode, sizeof (PciNode));
+  PciNode.Header.Type     = HARDWARE_DEVICE_PATH;
+  PciNode.Header.SubType  = HW_PCI_DP;
+  SetDevicePathNodeLength (&PciNode.Header, sizeof (PciNode));
+  PciNode.Device        = Device;
+  PciNode.Function      = Function;
+
+  ReturnDevicePath      = AppendDevicePathNode (DevicePath, &PciNode.Header);
+
+  *BridgePrimaryBus     = 0xffff;
+  *BridgeSubordinateBus = 0xffff;
+  return ReturnDevicePath;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciDevicePath (
+  IN     EFI_DEVICE_IO_PROTOCOL        *This,
+  IN     UINT64                        Address,
+  IN OUT EFI_DEVICE_PATH_PROTOCOL      **PciDevicePath
+  )
+/*++
+
+Routine Description:
+  
+  Provides an EFI Device Path for a PCI device with the given PCI configuration space address.
+
+Arguments:
+  
+  This           -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.  
+  Address        -  The PCI configuration space address of the device whose Device Path
+                    is going to be returned.           
+  PciDevicePath  -  A pointer to the pointer for the EFI Device Path for PciAddress.
+                    Memory for the Device Path is allocated from the pool.
+
+Returns:
+  
+  EFI_SUCCESS           -  The PciDevicePath returns a pointer to a valid EFI Device Path.
+  EFI_UNSUPPORTED       -  The PciAddress does not map to a valid EFI Device Path. 
+  EFI_OUT_OF_RESOURCES  -  The request could not be completed due to a lack of resources.
+
+--*/
+{
+  DEVICE_IO_PRIVATE_DATA  *Private;
+  UINT16                  PrimaryBus;
+  UINT16                  SubordinateBus;
+  UINT8                   Bus;
+  UINT8                   Device;
+  UINT8                   Func;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  Bus     = (UINT8) (((UINT32) Address >> 24) & 0xff);
+  Device  = (UINT8) (((UINT32) Address >> 16) & 0xff);
+  Func    = (UINT8) (((UINT32) Address >> 8) & 0xff);
+
+  if (Bus < Private->PrimaryBus || Bus > Private->SubordinateBus) {
+    return EFI_UNSUPPORTED;
+  }
+
+  *PciDevicePath  = Private->DevicePath;
+  PrimaryBus      = Private->PrimaryBus;
+  SubordinateBus  = Private->SubordinateBus;
+  do {
+    *PciDevicePath = AppendPciDevicePath (
+                       Private,
+                       Bus,
+                       Device,
+                       Func,
+                       *PciDevicePath,
+                       &PrimaryBus,
+                       &SubordinateBus
+                       );
+    if (*PciDevicePath == NULL) {
+      return EFI_OUT_OF_RESOURCES;
+    }
+  } while (PrimaryBus != 0xffff);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoMap (
+  IN     EFI_DEVICE_IO_PROTOCOL   *This,
+  IN     EFI_IO_OPERATION_TYPE    Operation,
+  IN     EFI_PHYSICAL_ADDRESS     *HostAddress,
+  IN OUT UINTN                    *NumberOfBytes,
+  OUT    EFI_PHYSICAL_ADDRESS     *DeviceAddress,
+  OUT    VOID                     **Mapping
+  )
+/*++
+
+Routine Description:
+  
+  Provides the device-specific addresses needed to access system memory.
+
+Arguments:
+  
+  This           -  A pointer to the EFI_DEVICE_IO_INTERFACE instance. 
+  Operation      -  Indicates if the bus master is going to read or write to system memory.  
+  HostAddress    -  The system memory address to map to the device.
+  NumberOfBytes  -  On input the number of bytes to map. On output the number of bytes
+                    that were mapped.
+  DeviceAddress  -  The resulting map address for the bus master device to use to access the
+                    hosts HostAddress.
+  Mapping        -  A resulting value to pass to Unmap().
+
+Returns:
+  
+  EFI_SUCCESS            -  The range was mapped for the returned NumberOfBytes. 
+  EFI_INVALID_PARAMETER  -  The Operation or HostAddress is undefined. 
+  EFI_UNSUPPORTED        -  The HostAddress cannot be mapped as a common buffer.
+  EFI_DEVICE_ERROR       -  The system hardware could not map the requested address. 
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to a lack of resources.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  if ((UINT32)Operation > EfiBusMasterCommonBuffer) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (((UINTN) (*HostAddress) != (*HostAddress)) && Operation == EfiBusMasterCommonBuffer) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Status = Private->PciRootBridgeIo->Map (
+                                       Private->PciRootBridgeIo,
+                                       (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION) Operation,
+                                       (VOID *) (UINTN) (*HostAddress),
+                                       NumberOfBytes,
+                                       DeviceAddress,
+                                       Mapping
+                                       );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoUnmap (
+  IN EFI_DEVICE_IO_PROTOCOL   *This,
+  IN VOID                     *Mapping
+  )
+/*++
+
+Routine Description:
+  
+  Completes the Map() operation and releases any corresponding resources.
+
+Arguments:
+  
+  This     -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Mapping  -  The mapping value returned from Map().
+
+Returns:
+  
+  EFI_SUCCESS       -  The range was unmapped.
+  EFI_DEVICE_ERROR  -  The data was not committed to the target system memory.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  Status = Private->PciRootBridgeIo->Unmap (
+                                       Private->PciRootBridgeIo,
+                                       Mapping
+                                       );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoAllocateBuffer (
+  IN     EFI_DEVICE_IO_PROTOCOL    *This,
+  IN     EFI_ALLOCATE_TYPE         Type,
+  IN     EFI_MEMORY_TYPE           MemoryType,
+  IN     UINTN                     Pages,
+  IN OUT EFI_PHYSICAL_ADDRESS      *PhysicalAddress
+  )
+/*++
+
+Routine Description:
+  
+  Allocates pages that are suitable for an EFIBusMasterCommonBuffer mapping.
+
+Arguments:
+  
+  This             -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Type             -  The type allocation to perform.
+  MemoryType       -  The type of memory to allocate, EfiBootServicesData or
+                      EfiRuntimeServicesData.
+  Pages            -  The number of pages to allocate.
+  PhysicalAddress  -  A pointer to store the base address of the allocated range.
+
+Returns:
+  
+  EFI_SUCCESS            -  The requested memory pages were allocated.
+  EFI_OUT_OF_RESOURCES   -  The memory pages could not be allocated.
+  EFI_INVALID_PARAMETER  -  The requested memory type is invalid.
+  EFI_UNSUPPORTED        -  The requested PhysicalAddress is not supported on
+                            this platform.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_PHYSICAL_ADDRESS  HostAddress;
+
+  HostAddress = *PhysicalAddress;
+
+  if ((MemoryType != EfiBootServicesData) && (MemoryType != EfiRuntimeServicesData)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if ((UINT32)Type >= MaxAllocateType) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if ((Type == AllocateAddress) && (HostAddress + EFI_PAGES_TO_SIZE (Pages) - 1 > MAX_COMMON_BUFFER)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  if ((AllocateAnyPages == Type) || (AllocateMaxAddress == Type && HostAddress > MAX_COMMON_BUFFER)) {
+    Type        = AllocateMaxAddress;
+    HostAddress = MAX_COMMON_BUFFER;
+  }
+
+  Status = gBS->AllocatePages (
+                  Type,
+                  MemoryType,
+                  Pages,
+                  &HostAddress
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+
+  *PhysicalAddress = HostAddress;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoFlush (
+  IN EFI_DEVICE_IO_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+  
+  Flushes any posted write data to the device.
+
+Arguments:
+  
+  This  -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+
+Returns:
+  
+  EFI_SUCCESS       -  The buffers were flushed.
+  EFI_DEVICE_ERROR  -  The buffers were not flushed due to a hardware error.
+
+--*/
+{
+  EFI_STATUS              Status;
+  DEVICE_IO_PRIVATE_DATA  *Private;
+
+  Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
+
+  Status  = Private->PciRootBridgeIo->Flush (Private->PciRootBridgeIo);
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+DeviceIoFreeBuffer (
+  IN EFI_DEVICE_IO_PROTOCOL   *This,
+  IN UINTN                    Pages,
+  IN EFI_PHYSICAL_ADDRESS     HostAddress
+  )
+/*++
+
+Routine Description:
+  
+  Frees pages that were allocated with AllocateBuffer().
+
+Arguments:
+  
+  This         -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Pages        -  The number of pages to free.
+  HostAddress  -  The base address of the range to free.
+
+Returns:
+  
+  EFI_SUCCESS            -  The requested memory pages were freed.
+  EFI_NOT_FOUND          -  The requested memory pages were not allocated with
+                            AllocateBuffer().               
+  EFI_INVALID_PARAMETER  -  HostAddress is not page aligned or Pages is invalid.
+
+--*/
+{
+  if (((HostAddress & EFI_PAGE_MASK) != 0) || (Pages <= 0)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  return gBS->FreePages (HostAddress, Pages);
+}

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/DeviceIo.h

@@ -0,0 +1,449 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+    DeviceIo.h
+    
+Abstract:
+
+    Private Data definition for Device IO driver
+
+--*/
+
+#ifndef _DEVICE_IO_H
+#define _DEVICE_IO_H
+
+
+
+#define DEVICE_IO_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('d', 'e', 'v', 'I')
+
+#define MAX_COMMON_BUFFER                 0x00000000FFFFFFFF
+
+typedef struct {
+  UINTN                           Signature;
+  EFI_HANDLE                      Handle;
+  EFI_DEVICE_IO_PROTOCOL          DeviceIo;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+  EFI_DEVICE_PATH_PROTOCOL        *DevicePath;
+  UINT16                          PrimaryBus;
+  UINT16                          SubordinateBus;
+} DEVICE_IO_PRIVATE_DATA;
+
+#define DEVICE_IO_PRIVATE_DATA_FROM_THIS(a) CR (a, DEVICE_IO_PRIVATE_DATA, DeviceIo, DEVICE_IO_PRIVATE_DATA_SIGNATURE)
+
+EFI_STATUS
+DeviceIoConstructor (
+  IN EFI_HANDLE                      Handle,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
+  IN EFI_DEVICE_PATH_PROTOCOL        *DevicePath,
+  IN UINT16                          PrimaryBus,
+  IN UINT16                          SubordinateBus
+  )
+/*++
+
+Routine Description:
+
+  Initialize and install a Device IO protocol on a empty device path handle.
+
+Arguments:
+
+  Handle               - Handle of PCI RootBridge IO instance
+  PciRootBridgeIo      - PCI RootBridge IO instance
+  DevicePath           - Device Path of PCI RootBridge IO instance
+  PrimaryBus           - Primary Bus
+  SubordinateBus       - Subordinate Bus
+
+Returns:
+
+  EFI_SUCCESS          -  This driver is added to ControllerHandle.  
+  EFI_ALREADY_STARTED  -  This driver is already running on ControllerHandle.   
+  Others               -  This driver does not support this device.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoMemRead (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading memory mapped I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations.  
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.           
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.  
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoMemWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing memory mapped I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.  
+  Address  -  The base address of I/O operations.   
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.            
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoIoRead (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.          
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoIoWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing I/O space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations.
+  Address  -  The base address of I/O operations.
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.        
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciRead (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform reading PCI configuration space of device
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.  
+  Width    -  Width of I/O operations. 
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.           
+  Buffer   -  The destination buffer to store results.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was read from the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciWrite (
+  IN     EFI_DEVICE_IO_PROTOCOL *This,
+  IN     EFI_IO_WIDTH           Width,
+  IN     UINT64                 Address,
+  IN     UINTN                  Count,
+  IN OUT VOID                   *Buffer
+  )
+/*++
+
+Routine Description:
+  
+  Perform writing PCI configuration space of device.
+
+Arguments:
+  
+  This     -  A pointer to EFI_DEVICE_IO protocol instance.   
+  Width    -  Width of I/O operations. 
+  Address  -  The base address of I/O operations. 
+  Count    -  The number of I/O operations to perform. 
+              Bytes moves is Width size * Count, starting at Address.         
+  Buffer   -  The source buffer of data to be written.
+
+Returns:
+    
+  EFI_SUCCESS            -  The data was written to the device.
+  EFI_INVALID_PARAMETER  -  Width is invalid.
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoPciDevicePath (
+  IN     EFI_DEVICE_IO_PROTOCOL        *This,
+  IN     UINT64                        Address,
+  IN OUT EFI_DEVICE_PATH_PROTOCOL      **PciDevicePath
+  )
+/*++
+
+Routine Description:
+  
+  Append a PCI device path node to another device path.
+
+Arguments:
+  
+  This                  -  A pointer to EFI_DEVICE_IO_PROTOCOL.  
+  Address               -  PCI bus,device, function.
+  PciDevicePath         -  PCI device path.
+
+Returns:
+  
+  Pointer to the appended PCI device path.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoMap (
+  IN     EFI_DEVICE_IO_PROTOCOL   *This,
+  IN     EFI_IO_OPERATION_TYPE    Operation,
+  IN     EFI_PHYSICAL_ADDRESS     *HostAddress,
+  IN OUT UINTN                    *NumberOfBytes,
+  OUT    EFI_PHYSICAL_ADDRESS     *DeviceAddress,
+  OUT    VOID                     **Mapping
+  )
+/*++
+
+Routine Description:
+  
+  Provides the device-specific addresses needed to access system memory.
+
+Arguments:
+  
+  This           -  A pointer to the EFI_DEVICE_IO_INTERFACE instance. 
+  Operation      -  Indicates if the bus master is going to read or write to system memory.  
+  HostAddress    -  The system memory address to map to the device.
+  NumberOfBytes  -  On input the number of bytes to map. On output the number of bytes
+                    that were mapped.
+  DeviceAddress  -  The resulting map address for the bus master device to use to access the
+                    hosts HostAddress.
+  Mapping        -  A resulting value to pass to Unmap().
+
+Returns:
+  
+  EFI_SUCCESS            -  The range was mapped for the returned NumberOfBytes. 
+  EFI_INVALID_PARAMETER  -  The Operation or HostAddress is undefined. 
+  EFI_UNSUPPORTED        -  The HostAddress cannot be mapped as a common buffer.
+  EFI_DEVICE_ERROR       -  The system hardware could not map the requested address. 
+  EFI_OUT_OF_RESOURCES   -  The request could not be completed due to a lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoUnmap (
+  IN EFI_DEVICE_IO_PROTOCOL   *This,
+  IN VOID                     *Mapping
+  )
+/*++
+
+Routine Description:
+  
+  Completes the Map() operation and releases any corresponding resources.
+
+Arguments:
+  
+  This     -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Mapping  -  The mapping value returned from Map().
+
+Returns:
+  
+  EFI_SUCCESS       -  The range was unmapped.
+  EFI_DEVICE_ERROR  -  The data was not committed to the target system memory.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoAllocateBuffer (
+  IN     EFI_DEVICE_IO_PROTOCOL    *This,
+  IN     EFI_ALLOCATE_TYPE         Type,
+  IN     EFI_MEMORY_TYPE           MemoryType,
+  IN     UINTN                     Pages,
+  IN OUT EFI_PHYSICAL_ADDRESS      *HostAddress
+  )
+/*++
+
+Routine Description:
+  
+  Allocates pages that are suitable for an EFIBusMasterCommonBuffer mapping.
+
+Arguments:
+  
+  This             -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Type             -  The type allocation to perform.
+  MemoryType       -  The type of memory to allocate, EfiBootServicesData or
+                      EfiRuntimeServicesData.
+  Pages            -  The number of pages to allocate.
+  HostAddress      -  A pointer to store the base address of the allocated range.
+
+Returns:
+  
+  EFI_SUCCESS            -  The requested memory pages were allocated.
+  EFI_OUT_OF_RESOURCES   -  The memory pages could not be allocated.
+  EFI_INVALID_PARAMETER  -  The requested memory type is invalid.
+  EFI_UNSUPPORTED        -  The requested PhysicalAddress is not supported on
+                            this platform.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoFlush (
+  IN EFI_DEVICE_IO_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+  
+  Flushes any posted write data to the device.
+
+Arguments:
+  
+  This  -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+
+Returns:
+  
+  EFI_SUCCESS       -  The buffers were flushed.
+  EFI_DEVICE_ERROR  -  The buffers were not flushed due to a hardware error.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+DeviceIoFreeBuffer (
+  IN EFI_DEVICE_IO_PROTOCOL   *This,
+  IN UINTN                    Pages,
+  IN EFI_PHYSICAL_ADDRESS     HostAddress
+  )
+/*++
+
+Routine Description:
+  
+  Frees pages that were allocated with AllocateBuffer().
+
+Arguments:
+  
+  This         -  A pointer to the EFI_DEVICE_IO_INTERFACE instance.
+  Pages        -  The number of pages to free.
+  HostAddress  -  The base address of the range to free.
+
+Returns:
+  
+  EFI_SUCCESS            -  The requested memory pages were freed.
+  EFI_NOT_FOUND          -  The requested memory pages were not allocated with
+                            AllocateBuffer().               
+  EFI_INVALID_PARAMETER  -  HostAddress is not page aligned or Pages is invalid.
+
+--*/
+;
+
+#endif
+

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/Ia32/PcatIo.c

@@ -0,0 +1,738 @@
+/*++
+
+Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+    PcatPciRootBridgeIo.c
+    
+Abstract:
+
+    EFI PC AT PCI Root Bridge Io Protocol
+
+Revision History
+
+--*/
+
+#include "PcatPciRootBridge.h"
+
+BOOLEAN                  mPciOptionRomTableInstalled = FALSE;
+EFI_PCI_OPTION_ROM_TABLE mPciOptionRomTable          = {0, NULL};
+
+EFI_STATUS
+EFIAPI
+PcatRootBridgeIoIoRead (
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN     UINT64                                 UserAddress,
+  IN     UINTN                                  Count,
+  IN OUT VOID                                   *UserBuffer
+  )
+{
+  return gCpuIo->Io.Read (
+                      gCpuIo,
+                      (EFI_CPU_IO_PROTOCOL_WIDTH) Width,
+                      UserAddress,
+                      Count,
+                      UserBuffer
+                      );
+}
+
+EFI_STATUS
+EFIAPI
+PcatRootBridgeIoIoWrite (
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN UINT64                                 UserAddress,
+  IN UINTN                                  Count,
+  IN OUT VOID                               *UserBuffer
+  )
+{
+  return gCpuIo->Io.Write (
+                      gCpuIo,
+                      (EFI_CPU_IO_PROTOCOL_WIDTH) Width,
+                      UserAddress,
+                      Count,
+                      UserBuffer
+                      );
+
+}
+
+EFI_STATUS
+PcatRootBridgeIoGetIoPortMapping (
+  OUT EFI_PHYSICAL_ADDRESS  *IoPortMapping,
+  OUT EFI_PHYSICAL_ADDRESS  *MemoryPortMapping
+  )
+/*++
+
+  Get the IO Port Mapping.  For IA-32 it is always 0.
+  
+--*/
+{
+  *IoPortMapping = 0;
+  *MemoryPortMapping = 0;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+PcatRootBridgeIoPciRW (
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN BOOLEAN                                Write,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN UINT64                                 UserAddress,
+  IN UINTN                                  Count,
+  IN OUT VOID                               *UserBuffer
+  )
+{
+  PCI_CONFIG_ACCESS_CF8             Pci;
+  PCI_CONFIG_ACCESS_CF8             PciAligned;
+  UINT32                            InStride;
+  UINT32                            OutStride;
+  UINTN                             PciData;
+  UINTN                             PciDataStride;
+  PCAT_PCI_ROOT_BRIDGE_INSTANCE     *PrivateData;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS  PciAddress;
+  UINT64                            PciExpressRegAddr;
+  BOOLEAN                           UsePciExpressAccess;
+
+  if ((UINT32)Width >= EfiPciWidthMaximum) {
+    return EFI_INVALID_PARAMETER;
+  }
+  
+  if ((Width & 0x03) >= EfiPciWidthUint64) {
+    return EFI_INVALID_PARAMETER;
+  }
+  
+  PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS(This);
+
+  InStride    = 1 << (Width & 0x03);
+  OutStride   = InStride;
+  if (Width >= EfiPciWidthFifoUint8 && Width <= EfiPciWidthFifoUint64) {
+    InStride = 0;
+  }
+
+  if (Width >= EfiPciWidthFillUint8 && Width <= EfiPciWidthFillUint64) {
+    OutStride = 0;
+  }
+
+  UsePciExpressAccess = FALSE;
+
+  CopyMem (&PciAddress, &UserAddress, sizeof(UINT64));
+
+  if (PciAddress.ExtendedRegister > 0xFF) {
+    //
+    // Check PciExpressBaseAddress
+    //
+    if ((PrivateData->PciExpressBaseAddress == 0) ||
+        (PrivateData->PciExpressBaseAddress >= MAX_ADDRESS)) {
+      return EFI_UNSUPPORTED;
+    } else {
+      UsePciExpressAccess = TRUE;
+    }
+  } else {
+    if (PciAddress.ExtendedRegister != 0) {
+      Pci.Bits.Reg = PciAddress.ExtendedRegister & 0xFF;
+    } else {
+      Pci.Bits.Reg = PciAddress.Register;
+    }
+    //
+    // Note: We can also use PciExpress access here, if wanted.
+    //
+  }
+
+  if (!UsePciExpressAccess) {
+    Pci.Bits.Func     = PciAddress.Function;
+    Pci.Bits.Dev      = PciAddress.Device;
+    Pci.Bits.Bus      = PciAddress.Bus;
+    Pci.Bits.Reserved = 0;
+    Pci.Bits.Enable   = 1;
+
+    //
+    // PCI Config access are all 32-bit alligned, but by accessing the
+    //  CONFIG_DATA_REGISTER (0xcfc) with different widths more cycle types
+    //  are possible on PCI.
+    //
+    // To read a byte of PCI config space you load 0xcf8 and 
+    //  read 0xcfc, 0xcfd, 0xcfe, 0xcff
+    //
+    PciDataStride = Pci.Bits.Reg & 0x03;
+
+    while (Count) {
+      PciAligned = Pci;
+      PciAligned.Bits.Reg &= 0xfc;
+      PciData = (UINTN)PrivateData->PciData + PciDataStride;
+      EfiAcquireLock(&PrivateData->PciLock);
+      This->Io.Write (This, EfiPciWidthUint32, PrivateData->PciAddress, 1, &PciAligned);
+      if (Write) {
+        This->Io.Write (This, Width, PciData, 1, UserBuffer);
+      } else {
+        This->Io.Read (This, Width, PciData, 1, UserBuffer);
+      }
+      EfiReleaseLock(&PrivateData->PciLock);
+      UserBuffer = ((UINT8 *)UserBuffer) + OutStride;
+      PciDataStride = (PciDataStride + InStride) % 4;
+      Pci.Bits.Reg += InStride;
+      Count -= 1;
+    }
+  } else {
+    //
+    // Access PCI-Express space by using memory mapped method.
+    //
+    PciExpressRegAddr = (PrivateData->PciExpressBaseAddress) |
+                        (PciAddress.Bus      << 20) |
+                        (PciAddress.Device   << 15) |
+                        (PciAddress.Function << 12);
+    if (PciAddress.ExtendedRegister != 0) {
+      PciExpressRegAddr += PciAddress.ExtendedRegister;
+    } else {
+      PciExpressRegAddr += PciAddress.Register;
+    }
+    while (Count) {
+      if (Write) {
+        This->Mem.Write (This, Width, (UINTN) PciExpressRegAddr, 1, UserBuffer);
+      } else {
+        This->Mem.Read (This, Width, (UINTN) PciExpressRegAddr, 1, UserBuffer);
+      }
+
+      UserBuffer = ((UINT8 *) UserBuffer) + OutStride;
+      PciExpressRegAddr += InStride;
+      Count -= 1;
+    }
+  }
+  
+  return EFI_SUCCESS;
+}
+
+VOID
+ScanPciBus(
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev,
+  UINT16                           MinBus,
+  UINT16                           MaxBus,
+  UINT16                           MinDevice,
+  UINT16                           MaxDevice,
+  UINT16                           MinFunc,
+  UINT16                           MaxFunc,
+  EFI_PCI_BUS_SCAN_CALLBACK        Callback,
+  VOID                             *Context
+  )
+  
+{
+  UINT16      Bus;
+  UINT16      Device;
+  UINT16      Func;
+  UINT64      Address;
+  PCI_TYPE00  PciHeader;
+
+  //
+  // Loop through all busses
+  //
+  for (Bus = MinBus; Bus <= MaxBus; Bus++) {
+    //  
+    // Loop 32 devices per bus
+    //
+    for (Device = MinDevice; Device <= MaxDevice; Device++) {
+      //
+      // Loop through 8 functions per device
+      //
+      for (Func = MinFunc; Func <= MaxFunc; Func++) {
+
+        //
+        // Compute the EFI Address required to access the PCI Configuration Header of this PCI Device
+        //
+        Address = EFI_PCI_ADDRESS (Bus, Device, Func, 0);
+
+        //
+        // Read the VendorID from this PCI Device's Confioguration Header
+        //
+        IoDev->Pci.Read (IoDev, EfiPciWidthUint16, Address, 1, &PciHeader.Hdr.VendorId);
+    
+        //
+        // If VendorId = 0xffff, there does not exist a device at this 
+        // location. For each device, if there is any function on it, 
+        // there must be 1 function at Function 0. So if Func = 0, there
+        // will be no more functions in the same device, so we can break
+        // loop to deal with the next device.
+        //  
+        if (PciHeader.Hdr.VendorId == 0xffff && Func == 0) {
+          break;
+        }
+        
+        if (PciHeader.Hdr.VendorId != 0xffff) {
+
+          //
+          // Read the HeaderType to determine if this is a multi-function device
+          //
+          IoDev->Pci.Read (IoDev, EfiPciWidthUint8, Address + 0x0e, 1, &PciHeader.Hdr.HeaderType);
+
+          //
+          // Call the callback function for the device that was found
+          //
+          Callback(
+            IoDev, 
+            MinBus, MaxBus,
+            MinDevice, MaxDevice,
+            MinFunc, MaxFunc,
+            Bus,
+            Device,
+            Func,
+            Context
+            );
+
+          //
+          // If this is not a multi-function device, we can leave the loop 
+          // to deal with the next device.
+          //
+          if ((PciHeader.Hdr.HeaderType & HEADER_TYPE_MULTI_FUNCTION) == 0x00 && Func == 0) {
+            break;
+          }
+        }  
+      }
+    }
+  }
+}
+
+VOID
+CheckForRom (
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev,
+  UINT16                           MinBus,
+  UINT16                           MaxBus,
+  UINT16                           MinDevice,
+  UINT16                           MaxDevice,
+  UINT16                           MinFunc,
+  UINT16                           MaxFunc,
+  UINT16                           Bus,
+  UINT16                           Device,
+  UINT16                           Func,
+  IN VOID                          *VoidContext
+  )
+{
+  EFI_STATUS                                 Status;
+  PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT  *Context;
+  UINT64                                     Address;
+  PCI_TYPE00                                 PciHeader;
+  PCI_TYPE01                                 *PciBridgeHeader;
+  UINT32                                     Register;
+  UINT32                                     RomBar;
+  UINT32                                     RomBarSize;
+  EFI_PHYSICAL_ADDRESS                       RomBuffer;
+  UINT32                                     MaxRomSize;
+  EFI_PCI_EXPANSION_ROM_HEADER               EfiRomHeader;
+  PCI_DATA_STRUCTURE                         Pcir;
+  EFI_PCI_OPTION_ROM_DESCRIPTOR              *TempPciOptionRomDescriptors;
+  BOOLEAN                                    LastImage;
+
+  Context = (PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT *)VoidContext;
+
+  Address = EFI_PCI_ADDRESS (Bus, Device, Func, 0);
+
+  //
+  // Save the contents of the PCI Configuration Header
+  //
+  IoDev->Pci.Read (IoDev, EfiPciWidthUint32, Address, sizeof(PciHeader)/sizeof(UINT32), &PciHeader);
+
+  if (IS_PCI_BRIDGE(&PciHeader)) {
+
+    PciBridgeHeader = (PCI_TYPE01 *)(&PciHeader);
+
+    //
+    // See if the PCI-PCI Bridge has its secondary interface enabled.
+    //
+    if (PciBridgeHeader->Bridge.SubordinateBus >= PciBridgeHeader->Bridge.SecondaryBus) {
+
+      //
+      // Disable the Prefetchable Memory Window
+      //
+      Register = 0x00000000;
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 0x26, 1, &Register);
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint32, Address + 0x2c, 1, &Register);
+      Register = 0xffffffff;
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 0x24, 1, &Register);
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 0x28, 1, &Register);
+
+      //
+      // Program Memory Window to the PCI Root Bridge Memory Window
+      //
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 0x20, 4, &Context->PpbMemoryWindow);
+
+      //
+      // Enable the Memory decode for the PCI-PCI Bridge
+      //
+      IoDev->Pci.Read (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+      Register |= 0x02;
+      IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+
+      //
+      // Recurse on the Secondary Bus Number
+      //
+      ScanPciBus(
+        IoDev,
+        PciBridgeHeader->Bridge.SecondaryBus, PciBridgeHeader->Bridge.SecondaryBus, 
+        0, PCI_MAX_DEVICE, 
+        0, PCI_MAX_FUNC, 
+        CheckForRom, Context
+        );
+    }
+  } else {
+
+    //
+    // Check if an Option ROM Register is present and save the Option ROM Window Register
+    //
+    RomBar = 0xffffffff;
+    IoDev->Pci.Write (IoDev, EfiPciWidthUint32, Address + 0x30, 1, &RomBar);
+    IoDev->Pci.Read (IoDev, EfiPciWidthUint32, Address + 0x30, 1, &RomBar);
+
+    RomBarSize = (~(RomBar & 0xfffff800)) + 1;
+
+    //
+    // Make sure the size of the ROM is between 0 and 16 MB
+    //
+    if (RomBarSize > 0 && RomBarSize <= 0x01000000) {
+
+      //
+      // Program Option ROM Window Register to the PCI Root Bridge Window and Enable the Option ROM Window
+      //
+      RomBar = (Context->PpbMemoryWindow & 0xffff) << 16;
+      RomBar = ((RomBar - 1) & (~(RomBarSize - 1))) + RomBarSize;
+      if (RomBar < (Context->PpbMemoryWindow & 0xffff0000)) {
+        MaxRomSize = (Context->PpbMemoryWindow & 0xffff0000) - RomBar;
+        RomBar = RomBar + 1;
+        IoDev->Pci.Write (IoDev, EfiPciWidthUint32, Address + 0x30, 1, &RomBar);
+        IoDev->Pci.Read  (IoDev, EfiPciWidthUint32, Address + 0x30, 1, &RomBar);
+        RomBar = RomBar - 1;
+
+        //
+        // Enable the Memory decode for the PCI Device
+        //
+        IoDev->Pci.Read (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+        Register |= 0x02;
+        IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+
+        //
+        // Follow the chain of images to determine the size of the Option ROM present
+        // Keep going until the last image is found by looking at the Indicator field
+        // or the size of an image is 0, or the size of all the images is bigger than the
+        // size of the window programmed into the PPB.
+        //
+        RomBarSize = 0;
+        do {
+
+          LastImage = TRUE;
+
+          ZeroMem (&EfiRomHeader, sizeof(EfiRomHeader));
+          IoDev->Mem.Read (
+            IoDev, 
+            EfiPciWidthUint8, 
+            RomBar + RomBarSize, 
+            sizeof(EfiRomHeader),
+            &EfiRomHeader
+            );
+
+          Pcir.ImageLength = 0;
+
+          if (EfiRomHeader.Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE &&
+              EfiRomHeader.PcirOffset != 0 &&
+              (EfiRomHeader.PcirOffset & 3) == 0 &&
+              RomBarSize + EfiRomHeader.PcirOffset + sizeof (PCI_DATA_STRUCTURE) <= MaxRomSize) {
+            ZeroMem (&Pcir, sizeof(Pcir));
+            IoDev->Mem.Read (
+              IoDev, 
+              EfiPciWidthUint8, 
+              RomBar + RomBarSize + EfiRomHeader.PcirOffset, 
+              sizeof(Pcir),
+              &Pcir
+              );
+
+            if (Pcir.Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
+              break;
+            }
+            if (RomBarSize + Pcir.ImageLength * 512 > MaxRomSize) {
+              break;
+            }
+            if ((Pcir.Indicator & 0x80) == 0x00) {
+              LastImage = FALSE;
+            }
+
+            RomBarSize += Pcir.ImageLength * 512;
+          }
+        } while (!LastImage && RomBarSize < MaxRomSize && Pcir.ImageLength !=0);
+
+        if (RomBarSize > 0) {
+
+          //
+          // Allocate a memory buffer for the Option ROM contents.
+          //
+          Status = gBS->AllocatePages(
+                          AllocateAnyPages,
+                          EfiBootServicesData,
+                          EFI_SIZE_TO_PAGES(RomBarSize),
+                          &RomBuffer
+                          );
+
+          if (!EFI_ERROR (Status)) {
+
+            //
+            // Copy the contents of the Option ROM to the memory buffer
+            //
+            IoDev->Mem.Read (IoDev, EfiPciWidthUint32, RomBar, RomBarSize / sizeof(UINT32), (VOID *)(UINTN)RomBuffer);
+
+            Status = gBS->AllocatePool(
+                            EfiBootServicesData,
+                            ((UINT32)mPciOptionRomTable.PciOptionRomCount + 1) * sizeof(EFI_PCI_OPTION_ROM_DESCRIPTOR),
+                            (VOID*)&TempPciOptionRomDescriptors
+                            );
+            if (mPciOptionRomTable.PciOptionRomCount > 0) {
+              CopyMem(
+                TempPciOptionRomDescriptors, 
+                mPciOptionRomTable.PciOptionRomDescriptors, 
+                (UINT32)mPciOptionRomTable.PciOptionRomCount * sizeof(EFI_PCI_OPTION_ROM_DESCRIPTOR)
+                );
+
+              gBS->FreePool(mPciOptionRomTable.PciOptionRomDescriptors);
+            }
+
+            mPciOptionRomTable.PciOptionRomDescriptors = TempPciOptionRomDescriptors; 
+
+            TempPciOptionRomDescriptors = &(mPciOptionRomTable.PciOptionRomDescriptors[(UINT32)mPciOptionRomTable.PciOptionRomCount]);
+
+            TempPciOptionRomDescriptors->RomAddress              = RomBuffer;
+            TempPciOptionRomDescriptors->MemoryType              = EfiBootServicesData;
+            TempPciOptionRomDescriptors->RomLength               = RomBarSize;
+            TempPciOptionRomDescriptors->Seg                     = (UINT32)IoDev->SegmentNumber;
+            TempPciOptionRomDescriptors->Bus                     = (UINT8)Bus;
+            TempPciOptionRomDescriptors->Dev                     = (UINT8)Device;
+            TempPciOptionRomDescriptors->Func                    = (UINT8)Func;
+            TempPciOptionRomDescriptors->ExecutedLegacyBiosImage = TRUE;
+            TempPciOptionRomDescriptors->DontLoadEfiRom          = FALSE;
+
+            mPciOptionRomTable.PciOptionRomCount++;
+          }
+        }
+
+        //
+        // Disable the Memory decode for the PCI-PCI Bridge
+        //
+        IoDev->Pci.Read (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+        Register &= (~0x02);
+        IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address + 4, 1, &Register);
+      }
+    }
+  }
+
+  //
+  // Restore the PCI Configuration Header 
+  //
+  IoDev->Pci.Write (IoDev, EfiPciWidthUint32, Address, sizeof(PciHeader)/sizeof(UINT32), &PciHeader);
+}
+
+VOID
+SaveCommandRegister (
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev,
+  UINT16                           MinBus,
+  UINT16                           MaxBus,
+  UINT16                           MinDevice,
+  UINT16                           MaxDevice,
+  UINT16                           MinFunc,
+  UINT16                           MaxFunc,
+  UINT16                           Bus,
+  UINT16                           Device,
+  UINT16                           Func,
+  IN VOID                          *VoidContext
+  )
+
+{
+  PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT  *Context;
+  UINT64  Address;
+  UINTN   Index;
+  UINT16  Command;
+
+  Context = (PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT *)VoidContext;
+
+  Address = EFI_PCI_ADDRESS (Bus, Device, Func, 4);
+
+  Index = (Bus - MinBus) * (PCI_MAX_DEVICE+1) * (PCI_MAX_FUNC+1) + Device * (PCI_MAX_FUNC+1) + Func;
+
+  IoDev->Pci.Read (IoDev, EfiPciWidthUint16, Address, 1, &Context->CommandRegisterBuffer[Index]);
+
+  //
+  // Clear the memory enable bit
+  //
+  Command = (UINT16) (Context->CommandRegisterBuffer[Index] & (~0x02));
+
+  IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address, 1, &Command);
+}
+
+VOID
+RestoreCommandRegister (
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev,
+  UINT16                           MinBus,
+  UINT16                           MaxBus,
+  UINT16                           MinDevice,
+  UINT16                           MaxDevice,
+  UINT16                           MinFunc,
+  UINT16                           MaxFunc,
+  UINT16                           Bus,
+  UINT16                           Device,
+  UINT16                           Func,
+  IN VOID                          *VoidContext
+  )
+
+{
+  PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT  *Context;
+  UINT64                                     Address;
+  UINTN                                      Index;
+
+  Context = (PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT *)VoidContext;
+
+  Address = EFI_PCI_ADDRESS (Bus, Device, Func, 4);
+
+  Index = (Bus - MinBus) * (PCI_MAX_DEVICE+1) * (PCI_MAX_FUNC+1) + Device * (PCI_MAX_FUNC+1) + Func;
+
+  IoDev->Pci.Write (IoDev, EfiPciWidthUint16, Address, 1, &Context->CommandRegisterBuffer[Index]);
+}
+
+EFI_STATUS
+ScanPciRootBridgeForRoms(
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev
+  )
+  
+{
+  EFI_STATUS                                 Status;
+  EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR          *Descriptors; 
+  UINT16                                     MinBus;
+  UINT16                                     MaxBus;
+  UINT64                                     RootWindowBase;
+  UINT64                                     RootWindowLimit;
+  PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT  Context;
+
+  if (mPciOptionRomTableInstalled == FALSE) {
+    gBS->InstallConfigurationTable(&gEfiPciOptionRomTableGuid, &mPciOptionRomTable);
+    mPciOptionRomTableInstalled = TRUE;
+  }
+
+  Status = IoDev->Configuration(IoDev, (VOID **)&Descriptors);
+  if (EFI_ERROR (Status) || Descriptors == NULL) {
+    return EFI_NOT_FOUND;
+  }
+
+  MinBus = 0xffff;
+  MaxBus = 0xffff;
+  RootWindowBase  = 0;
+  RootWindowLimit = 0;
+  while (Descriptors->Desc != ACPI_END_TAG_DESCRIPTOR) {
+    //
+    // Find bus range
+    //
+    if (Descriptors->ResType == ACPI_ADDRESS_SPACE_TYPE_BUS) {
+      MinBus = (UINT16)Descriptors->AddrRangeMin;
+      MaxBus = (UINT16)Descriptors->AddrRangeMax;
+    }
+    //
+    // Find memory descriptors that are not prefetchable
+    //
+    if (Descriptors->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM && Descriptors->SpecificFlag == 0) {
+      //
+      // Find Memory Descriptors that are less than 4GB, so the PPB Memory Window can be used for downstream devices
+      //
+      if (Descriptors->AddrRangeMax < 0x100000000ULL) {
+        //
+        // Find the largest Non-Prefetchable Memory Descriptor that is less than 4GB
+        //
+        if ((Descriptors->AddrRangeMax - Descriptors->AddrRangeMin) > (RootWindowLimit - RootWindowBase)) {
+          RootWindowBase  = Descriptors->AddrRangeMin;
+          RootWindowLimit = Descriptors->AddrRangeMax;
+        }
+      }
+    }
+    Descriptors ++;
+  }
+
+  //
+  // Make sure a bus range was found
+  //
+  if (MinBus == 0xffff || MaxBus == 0xffff) {
+    return EFI_NOT_FOUND;
+  }
+
+  //
+  // Make sure a non-prefetchable memory region was found
+  //
+  if (RootWindowBase == 0 && RootWindowLimit == 0) {
+    return EFI_NOT_FOUND;
+  }
+
+  //
+  // Round the Base and Limit values to 1 MB boudaries
+  //
+  RootWindowBase  = ((RootWindowBase - 1) & 0xfff00000) + 0x00100000;
+  RootWindowLimit = ((RootWindowLimit + 1) & 0xfff00000) - 1;
+
+  //
+  // Make sure that the size of the rounded window is greater than zero
+  //
+  if (RootWindowLimit <= RootWindowBase) {
+    return EFI_NOT_FOUND;
+  }
+
+  //
+  // Allocate buffer to save the Command register from all the PCI devices
+  //
+  Context.CommandRegisterBuffer = NULL;
+  Status = gBS->AllocatePool(
+                  EfiBootServicesData,
+                  sizeof(UINT16) * (MaxBus - MinBus + 1) * (PCI_MAX_DEVICE+1) * (PCI_MAX_FUNC+1),
+                  (VOID **)&Context.CommandRegisterBuffer
+                  );
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Context.PpbMemoryWindow   = (((UINT32)RootWindowBase) >> 16) | ((UINT32)RootWindowLimit & 0xffff0000);
+
+  //
+  // Save the Command register from all the PCI devices, and disable the I/O, Mem, and BusMaster bits
+  //
+  ScanPciBus(
+    IoDev,
+    MinBus, MaxBus, 
+    0, PCI_MAX_DEVICE, 
+    0, PCI_MAX_FUNC, 
+    SaveCommandRegister, &Context
+    );
+
+  //
+  // Recursively scan all the busses for PCI Option ROMs
+  //
+  ScanPciBus(
+    IoDev,
+    MinBus, MinBus, 
+    0, PCI_MAX_DEVICE, 
+    0, PCI_MAX_FUNC, 
+    CheckForRom, &Context
+    );
+
+  //
+  // Restore the Command register in all the PCI devices
+  //
+  ScanPciBus(
+    IoDev,
+    MinBus, MaxBus, 
+    0, PCI_MAX_DEVICE, 
+    0, PCI_MAX_FUNC, 
+    RestoreCommandRegister, &Context
+    );
+
+  //
+  // Free the buffer used to save all the Command register values
+  //
+  gBS->FreePool(Context.CommandRegisterBuffer);
+
+  return EFI_SUCCESS;
+}

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/PcatPciRootBridge.h

@@ -0,0 +1,244 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+  PcatPciRootBridge.h
+
+Abstract:
+
+  The driver for the host to pci bridge (root bridge).
+
+--*/
+
+#ifndef _PCAT_PCI_ROOT_BRIDGE_H_
+#define _PCAT_PCI_ROOT_BRIDGE_H_
+
+#include <PiDxe.h>
+#include <Protocol/PciRootBridgeIo.h>
+#include <Protocol/DeviceIo.h>
+#include <Protocol/CpuIo2.h>
+
+#include <Library/UefiLib.h>
+#include <Library/BaseLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/HobLib.h>
+
+#include <Guid/PciOptionRomTable.h>
+#include <Guid/HobList.h>
+#include <Guid/PciExpressBaseAddress.h>
+
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/Pci.h>
+
+#define PCI_MAX_SEGMENT   0
+//
+// Driver Instance Data Prototypes
+//
+#define PCAT_PCI_ROOT_BRIDGE_SIGNATURE  SIGNATURE_32('p', 'c', 'r', 'b')
+
+typedef struct {
+  UINT32                            Signature;
+  EFI_HANDLE                        Handle;
+                                    
+  EFI_DEVICE_PATH_PROTOCOL          *DevicePath;
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL   Io;
+  EFI_CPU_IO2_PROTOCOL              *CpuIo;
+
+  UINT32                            RootBridgeNumber;
+  UINT32                            PrimaryBus;
+  UINT32                            SubordinateBus;
+                                     
+  UINT64                            MemBase;     // Offsets host to bus memory addr.
+  UINT64                            MemLimit;    // Max allowable memory access
+                                    
+  UINT64                            IoBase;      // Offsets host to bus io addr.
+  UINT64                            IoLimit;     // Max allowable io access
+                                    
+  UINT64                            PciAddress;
+  UINT64                            PciData;
+                                    
+  UINT64                            PhysicalMemoryBase;
+  UINT64                            PhysicalIoBase;
+                                     
+  EFI_LOCK                          PciLock;
+                                    
+  UINT64                            Attributes;
+                                    
+  UINT64                            Mem32Base;
+  UINT64                            Mem32Limit;
+  UINT64                            Pmem32Base;
+  UINT64                            Pmem32Limit;
+  UINT64                            Mem64Base;
+  UINT64                            Mem64Limit;
+  UINT64                            Pmem64Base;
+  UINT64                            Pmem64Limit;
+
+  UINT64                            PciExpressBaseAddress;
+
+  EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Configuration;
+
+  LIST_ENTRY                    MapInfo;
+} PCAT_PCI_ROOT_BRIDGE_INSTANCE;
+
+//
+// Driver Instance Data Macros
+//
+#define DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS(a) \
+  CR(a, PCAT_PCI_ROOT_BRIDGE_INSTANCE, Io, PCAT_PCI_ROOT_BRIDGE_SIGNATURE)
+
+//
+// Private data types
+//
+typedef union {
+  UINT8   volatile  *buf;
+  UINT8   volatile  *ui8;
+  UINT16  volatile  *ui16;
+  UINT32  volatile  *ui32;
+  UINT64  volatile  *ui64;
+  UINTN   volatile  ui;
+} PTR;
+
+typedef struct {
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION  Operation;
+  UINTN                                      NumberOfBytes;
+  UINTN                                      NumberOfPages;
+  EFI_PHYSICAL_ADDRESS                       HostAddress;
+  EFI_PHYSICAL_ADDRESS                       MappedHostAddress;
+} MAP_INFO;
+
+typedef struct {
+  LIST_ENTRY Link;
+  MAP_INFO * Map;  
+} MAP_INFO_INSTANCE;
+
+typedef
+VOID
+(*EFI_PCI_BUS_SCAN_CALLBACK) (
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev,
+  UINT16                           MinBus,
+  UINT16                           MaxBus,
+  UINT16                           MinDevice,
+  UINT16                           MaxDevice,
+  UINT16                           MinFunc,
+  UINT16                           MaxFunc,
+  UINT16                           Bus,
+  UINT16                           Device,
+  UINT16                           Func,
+  IN VOID                          *Context
+  );
+
+typedef struct {
+  UINT16                    *CommandRegisterBuffer;
+  UINT32                    PpbMemoryWindow;     
+} PCAT_PCI_ROOT_BRIDGE_SCAN_FOR_ROM_CONTEXT;
+
+typedef struct {
+  UINT8 Register;
+  UINT8 Function;
+  UINT8 Device;
+  UINT8 Bus;
+  UINT8 Reserved[4];
+} DEFIO_PCI_ADDR;
+
+//
+// Driver Protocol Constructor Prototypes
+//
+EFI_STATUS 
+ConstructConfiguration(
+  IN OUT PCAT_PCI_ROOT_BRIDGE_INSTANCE  *PrivateData
+  );
+
+EFI_STATUS
+PcatPciRootBridgeParseBars (
+  IN PCAT_PCI_ROOT_BRIDGE_INSTANCE  *PrivateData,
+  IN UINT16                         Command,
+  IN UINTN                          Bus,
+  IN UINTN                          Device,
+  IN UINTN                          Function
+  );
+
+EFI_STATUS
+ScanPciRootBridgeForRoms(
+  EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *IoDev
+  );
+
+EFI_STATUS
+PcatRootBridgeDevicePathConstructor (
+  IN EFI_DEVICE_PATH_PROTOCOL  **Protocol,
+  IN UINTN                     RootBridgeNumber,
+  IN BOOLEAN                   IsPciExpress
+  );
+
+EFI_STATUS
+PcatRootBridgeIoConstructor (
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *Protocol,
+  IN UINTN                            SegmentNumber
+  );
+
+EFI_STATUS
+PcatRootBridgeIoGetIoPortMapping (
+  OUT EFI_PHYSICAL_ADDRESS  *IoPortMapping,
+  OUT EFI_PHYSICAL_ADDRESS  *MemoryPortMapping
+  );
+
+EFI_STATUS
+PcatRootBridgeIoPciRW (
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN BOOLEAN                                Write,
+  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN UINT64                                 UserAddress,
+  IN UINTN                                  Count,
+  IN OUT VOID                               *UserBuffer
+  );
+
+UINT64
+GetPciExpressBaseAddressForRootBridge (
+  IN UINTN    HostBridgeNumber,
+  IN UINTN    RootBridgeNumber
+  );
+
+EFI_STATUS
+EFIAPI
+PcatRootBridgeIoIoRead (
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN     UINT64                                 UserAddress,
+  IN     UINTN                                  Count,
+  IN OUT VOID                                   *UserBuffer
+  );
+
+EFI_STATUS
+EFIAPI
+PcatRootBridgeIoIoWrite (
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *This,
+  IN     EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,
+  IN     UINT64                                 UserAddress,
+  IN     UINTN                                  Count,
+  IN OUT VOID                                   *UserBuffer
+  );
+
+//
+// Driver entry point prototype
+//
+EFI_STATUS
+EFIAPI
+InitializePcatPciRootBridge (
+  IN EFI_HANDLE       ImageHandle,
+  IN EFI_SYSTEM_TABLE *SystemTable
+  );
+
+extern EFI_CPU_IO2_PROTOCOL  *gCpuIo;
+
+#endif

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/PcatPciRootBridgeDevicePath.c

@@ -0,0 +1,93 @@
+/*++
+
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+    PcatPciRootBridgeDevicePath.c
+    
+Abstract:
+
+    EFI PCAT PCI Root Bridge Device Path Protocol
+
+Revision History
+
+--*/
+
+#include "PcatPciRootBridge.h"
+
+//
+// Static device path declarations for this driver.
+//
+
+typedef struct {
+  ACPI_HID_DEVICE_PATH              AcpiDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
+} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
+
+EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {
+  {
+    {
+      ACPI_DEVICE_PATH,
+      ACPI_DP,
+      {
+        (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),
+        (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8),
+      }
+    },
+    EISA_PNP_ID(0x0A03),
+    0
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      END_DEVICE_PATH_LENGTH,
+      0
+    }
+  }
+};
+
+EFI_STATUS
+PcatRootBridgeDevicePathConstructor (
+  IN EFI_DEVICE_PATH_PROTOCOL  **Protocol,
+  IN UINTN                     RootBridgeNumber,
+  IN BOOLEAN                   IsPciExpress
+  )
+/*++
+
+Routine Description:
+
+    Construct the device path protocol
+
+Arguments:
+
+    Protocol - protocol to initialize
+    
+Returns:
+
+    None
+
+--*/
+{
+  ACPI_HID_DEVICE_PATH  *AcpiDevicePath;
+ 
+  *Protocol = DuplicateDevicePath((EFI_DEVICE_PATH_PROTOCOL *)(&mEfiPciRootBridgeDevicePath));
+
+  AcpiDevicePath = (ACPI_HID_DEVICE_PATH *)(*Protocol);
+ 
+  AcpiDevicePath->UID = (UINT32)RootBridgeNumber;
+
+  if (IsPciExpress) {
+    AcpiDevicePath->HID = EISA_PNP_ID(0x0A08);
+  }
+
+  return EFI_SUCCESS;
+}
+

UefiPayloadPkg/PciRootBridgeNoEnumerationDxe/PciRootBridgeNoEnumeration.inf

@@ -0,0 +1,66 @@
+## @file
+# 
+# Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
+# This program and the accompanying materials                          
+# are licensed and made available under the terms and conditions of the BSD License         
+# which accompanies this distribution.  The full text of the license may be found at        
+# http://opensource.org/licenses/bsd-license.php                                            
+#                                                                                           
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+#
+#  Module Name:
+#
+#  Abstract:
+#
+##
+
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PcatPciRootBridge
+  FILE_GUID                      = 0F7EC77A-1EE1-400f-A99D-7CBD1FEB181E
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+
+  ENTRY_POINT                    = InitializePcatPciRootBridge
+
+[Packages]
+  MdePkg/MdePkg.dec
+  UefiPayloadPkg/UefiPayloadPkg.dec
+
+[LibraryClasses]
+  UefiDriverEntryPoint
+  UefiLib
+  MemoryAllocationLib
+  UefiBootServicesTableLib
+  DebugLib
+  BaseMemoryLib
+  DevicePathLib
+  HobLib
+
+[Sources]
+  PcatPciRootBridge.h
+  PcatPciRootBridge.c
+  PcatPciRootBridgeDevicePath.c
+  PcatPciRootBridgeIo.c
+  DeviceIo.h
+  DeviceIo.c
+
+[Sources.ia32]
+  Ia32/PcatIo.c
+  
+[Sources.x64]
+  X64/PcatIo.c
+
+[Protocols]
+  gEfiPciRootBridgeIoProtocolGuid
+  gEfiDeviceIoProtocolGuid
+  gEfiCpuIo2ProtocolGuid
+
+[Guids]
+  gEfiPciOptionRomTableGuid
+  gEfiPciExpressBaseAddressGuid
+
+[Depex]
+  gEfiCpuIo2ProtocolGuid