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system76-edk2/CorebootPayloadPkg/Library/PlatformBdsLib/BdsPlatform.c
Maurice Ma 9c228fb031 Pkg-Module: CorebootPayloadPkg 
Initial coreboot UEFI payload code check in. It provides UEFI services on top of coreboot that allows UEFI OS boot.

CorebootPayloadPkg is source code package of coreboot Payload Modules, Provides definitions of payload image's layout and lists the modules required in DSC file.

It supports the following features:
  - Support Unified Extensible Firmware Interface (UEFI) specification 2.4.
  - Support Platform Initialization(PI) specification 1.3.
  - Support execution as a coreboot payload.
  - Support USB 3.0
  - Support SATA/ATA devices.
  - Support EFI aware OS boot.

The following features are not supported currently and have not been validated:
  - GCC Tool Chains
  - SMM Execution Environment
  - Security Boot

It was tested on a Intel Bay Trail CRB platform.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Maurice Ma <maurice.ma@intel.com>
Reviewed-by: Prince Agyeman <prince.agyeman@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17081 6f19259b-4bc3-4df7-8a09-765794883524
2015-03-31 00:56:01 +00:00

1017 lines
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/** @file
This file include all platform action which can be customized by IBV/OEM.
Copyright (c) 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.
**/
#include "BdsPlatform.h"
//
// Global data
//
BOOLEAN mDetectVgaOnly;
//
// Type definitions
//
typedef
EFI_STATUS
(EFIAPI *PROTOCOL_INSTANCE_CALLBACK)(
IN EFI_HANDLE Handle,
IN VOID *Instance,
IN VOID *Context
);
/**
@param[in] Handle - Handle of PCI device instance
@param[in] PciIo - PCI IO protocol instance
@param[in] Pci - PCI Header register block
**/
typedef
EFI_STATUS
(EFIAPI *VISIT_PCI_INSTANCE_CALLBACK)(
IN EFI_HANDLE Handle,
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN PCI_TYPE00 *Pci
);
//
// Function prototypes
//
EFI_STATUS
VisitAllInstancesOfProtocol (
IN EFI_GUID *Id,
IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
IN VOID *Context
);
EFI_STATUS
VisitAllPciInstancesOfProtocol (
IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
);
//
// BDS Platform Functions
//
/**
Platform Bds init. Include the platform firmware vendor, revision
and so crc check.
**/
VOID
EFIAPI
PlatformBdsInit (
VOID
)
{
}
EFI_STATUS
PrepareLpcBridgeDevicePath (
IN EFI_HANDLE DeviceHandle
)
/*++
Routine Description:
Add IsaKeyboard to ConIn,
add IsaSerial to ConOut, ConIn, ErrOut.
LPC Bridge: 06 01 00
Arguments:
DeviceHandle - Handle of PCIIO protocol.
Returns:
EFI_SUCCESS - LPC bridge is added to ConOut, ConIn, and ErrOut.
EFI_STATUS - No LPC bridge is added.
--*/
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
CHAR16 *DevPathStr;
DevicePath = NULL;
Status = gBS->HandleProtocol (
DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID*)&DevicePath
);
if (EFI_ERROR (Status)) {
return Status;
}
TempDevicePath = DevicePath;
//
// Register COM1
//
DevicePath = AppendDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *)NULL, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceVenderNode);
DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
//
// Print Device Path
//
DevPathStr = DevicePathToStr(DevicePath);
DEBUG((
EFI_D_INFO,
"BdsPlatform.c+%d: COM%d DevPath: %s\n",
__LINE__,
gPnp16550ComPortDeviceNode.UID + 1,
DevPathStr
));
FreePool(DevPathStr);
BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
BdsLibUpdateConsoleVariable (VarErrorOut, DevicePath, NULL);
return EFI_SUCCESS;
}
EFI_STATUS
GetGopDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *PciDevicePath,
OUT EFI_DEVICE_PATH_PROTOCOL **GopDevicePath
)
{
UINTN Index;
EFI_STATUS Status;
EFI_HANDLE PciDeviceHandle;
EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
EFI_DEVICE_PATH_PROTOCOL *TempPciDevicePath;
UINTN GopHandleCount;
EFI_HANDLE *GopHandleBuffer;
if (PciDevicePath == NULL || GopDevicePath == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Initialize the GopDevicePath to be PciDevicePath
//
*GopDevicePath = PciDevicePath;
TempPciDevicePath = PciDevicePath;
Status = gBS->LocateDevicePath (
&gEfiDevicePathProtocolGuid,
&TempPciDevicePath,
&PciDeviceHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Try to connect this handle, so that GOP dirver could start on this
// device and create child handles with GraphicsOutput Protocol installed
// on them, then we get device paths of these child handles and select
// them as possible console device.
//
#if 0
gBS->ConnectController (PciDeviceHandle, NULL, NULL, FALSE);
#else
{
ACPI_ADR_DEVICE_PATH AcpiAdr;
EFI_DEVICE_PATH_PROTOCOL *MyDevicePath = NULL;
AcpiAdr.Header.Type = ACPI_DEVICE_PATH;
AcpiAdr.Header.SubType = ACPI_ADR_DP;
//AcpiAdr.ADR= ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_VGA, 6, 0); //on bayleybay, CRT Device
AcpiAdr.ADR= ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_INTERNAL_DIGITAL, 8, 0); ; // on rambi, eDP C
SetDevicePathNodeLength (&AcpiAdr.Header, sizeof (ACPI_ADR_DEVICE_PATH));
MyDevicePath = AppendDevicePathNode(MyDevicePath, (EFI_DEVICE_PATH_PROTOCOL*)&AcpiAdr);
gBS->ConnectController (PciDeviceHandle, NULL, MyDevicePath, FALSE);
FreePool(MyDevicePath);
}
#endif
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiGraphicsOutputProtocolGuid,
NULL,
&GopHandleCount,
&GopHandleBuffer
);
if (!EFI_ERROR (Status)) {
//
// Add all the child handles as possible Console Device
//
for (Index = 0; Index < GopHandleCount; Index++) {
Status = gBS->HandleProtocol (GopHandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID*)&TempDevicePath);
if (EFI_ERROR (Status)) {
continue;
}
if (CompareMem (
PciDevicePath,
TempDevicePath,
GetDevicePathSize (PciDevicePath) - END_DEVICE_PATH_LENGTH
) == 0) {
//
// In current implementation, we only enable one of the child handles
// as console device, i.e. sotre one of the child handle's device
// path to variable "ConOut"
// In futhure, we could select all child handles to be console device
//
*GopDevicePath = TempDevicePath;
//
// Delete the PCI device's path that added by GetPlugInPciVgaDevicePath()
// Add the integrity GOP device path.
//
BdsLibUpdateConsoleVariable (VarConsoleOutDev, NULL, PciDevicePath);
BdsLibUpdateConsoleVariable (VarConsoleOutDev, TempDevicePath, NULL);
}
}
gBS->FreePool (GopHandleBuffer);
}
return EFI_SUCCESS;
}
EFI_STATUS
PreparePciVgaDevicePath (
IN EFI_HANDLE DeviceHandle
)
/*++
Routine Description:
Add PCI VGA to ConOut.
PCI VGA: 03 00 00
Arguments:
DeviceHandle - Handle of PCIIO protocol.
Returns:
EFI_SUCCESS - PCI VGA is added to ConOut.
EFI_STATUS - No PCI VGA device is added.
--*/
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *GopDevicePath;
DevicePath = NULL;
Status = gBS->HandleProtocol (
DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID*)&DevicePath
);
if (EFI_ERROR (Status)) {
return Status;
}
GetGopDevicePath (DevicePath, &GopDevicePath);
DevicePath = GopDevicePath;
BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
return EFI_SUCCESS;
}
EFI_STATUS
PreparePciSerialDevicePath (
IN EFI_HANDLE DeviceHandle
)
/*++
Routine Description:
Add PCI Serial to ConOut, ConIn, ErrOut.
PCI Serial: 07 00 02
Arguments:
DeviceHandle - Handle of PCIIO protocol.
Returns:
EFI_SUCCESS - PCI Serial is added to ConOut, ConIn, and ErrOut.
EFI_STATUS - No PCI Serial device is added.
--*/
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
DevicePath = NULL;
Status = gBS->HandleProtocol (
DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID*)&DevicePath
);
if (EFI_ERROR (Status)) {
return Status;
}
DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
BdsLibUpdateConsoleVariable (VarConsoleOut, DevicePath, NULL);
BdsLibUpdateConsoleVariable (VarConsoleInp, DevicePath, NULL);
BdsLibUpdateConsoleVariable (VarErrorOut, DevicePath, NULL);
return EFI_SUCCESS;
}
EFI_STATUS
VisitAllInstancesOfProtocol (
IN EFI_GUID *Id,
IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
IN VOID *Context
)
{
EFI_STATUS Status;
UINTN HandleCount;
EFI_HANDLE *HandleBuffer;
UINTN Index;
VOID *Instance;
//
// Start to check all the PciIo to find all possible device
//
HandleCount = 0;
HandleBuffer = NULL;
Status = gBS->LocateHandleBuffer (
ByProtocol,
Id,
NULL,
&HandleCount,
&HandleBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
for (Index = 0; Index < HandleCount; Index++) {
Status = gBS->HandleProtocol (HandleBuffer[Index], Id, &Instance);
if (EFI_ERROR (Status)) {
continue;
}
Status = (*CallBackFunction) (
HandleBuffer[Index],
Instance,
Context
);
}
gBS->FreePool (HandleBuffer);
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
VisitingAPciInstance (
IN EFI_HANDLE Handle,
IN VOID *Instance,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
PCI_TYPE00 Pci;
PciIo = (EFI_PCI_IO_PROTOCOL*) Instance;
//
// Check for all PCI device
//
Status = PciIo->Pci.Read (
PciIo,
EfiPciIoWidthUint32,
0,
sizeof (Pci) / sizeof (UINT32),
&Pci
);
if (EFI_ERROR (Status)) {
return Status;
}
return (*(VISIT_PCI_INSTANCE_CALLBACK)(UINTN) Context) (
Handle,
PciIo,
&Pci
);
}
EFI_STATUS
VisitAllPciInstances (
IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
)
{
return VisitAllInstancesOfProtocol (
&gEfiPciIoProtocolGuid,
VisitingAPciInstance,
(VOID*)(UINTN) CallBackFunction
);
}
/**
Do platform specific PCI Device check and add them to
ConOut, ConIn, ErrOut.
@param[in] Handle - Handle of PCI device instance
@param[in] PciIo - PCI IO protocol instance
@param[in] Pci - PCI Header register block
@retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
@retval EFI_STATUS - PCI Device check or Console variable update fail.
**/
EFI_STATUS
EFIAPI
DetectAndPreparePlatformPciDevicePath (
IN EFI_HANDLE Handle,
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN PCI_TYPE00 *Pci
)
{
EFI_STATUS Status;
Status = PciIo->Attributes (
PciIo,
EfiPciIoAttributeOperationEnable,
EFI_PCI_DEVICE_ENABLE,
NULL
);
ASSERT_EFI_ERROR (Status);
if (!mDetectVgaOnly) {
//
// Here we decide whether it is LPC Bridge
//
if ((IS_PCI_LPC (Pci)) ||
((IS_PCI_ISA_PDECODE (Pci)) &&
(Pci->Hdr.VendorId == 0x8086)
)
) {
//
// Add IsaKeyboard to ConIn,
// add IsaSerial to ConOut, ConIn, ErrOut
//
DEBUG ((EFI_D_INFO, "Found LPC Bridge device\n"));
PrepareLpcBridgeDevicePath (Handle);
return EFI_SUCCESS;
}
//
// Here we decide which Serial device to enable in PCI bus
//
if (IS_PCI_16550SERIAL (Pci)) {
//
// Add them to ConOut, ConIn, ErrOut.
//
DEBUG ((EFI_D_INFO, "Found PCI 16550 SERIAL device\n"));
PreparePciSerialDevicePath (Handle);
return EFI_SUCCESS;
}
}
//
// Here we decide which VGA device to enable in PCI bus
//
if (IS_PCI_VGA (Pci)) {
//
// Add them to ConOut.
//
DEBUG ((EFI_D_INFO, "Found PCI VGA device\n"));
PreparePciVgaDevicePath (Handle);
return EFI_SUCCESS;
}
return Status;
}
/**
Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
@param[in] DetectVgaOnly - Only detect VGA device if it's TRUE.
@retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
@retval EFI_STATUS - PCI Device check or Console variable update fail.
**/
EFI_STATUS
DetectAndPreparePlatformPciDevicePaths (
BOOLEAN DetectVgaOnly
)
{
mDetectVgaOnly = DetectVgaOnly;
return VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);
}
/**
Connect the predefined platform default console device. Always try to find
and enable the vga device if have.
@param PlatformConsole Predefined platform default console device array.
@retval EFI_SUCCESS Success connect at least one ConIn and ConOut
device, there must have one ConOut device is
active vga device.
@return Return the status of BdsLibConnectAllDefaultConsoles ()
**/
EFI_STATUS
PlatformBdsConnectConsole (
IN BDS_CONSOLE_CONNECT_ENTRY *PlatformConsole
)
{
EFI_STATUS Status;
UINTN Index;
EFI_DEVICE_PATH_PROTOCOL *VarConout;
EFI_DEVICE_PATH_PROTOCOL *VarConin;
UINTN DevicePathSize;
//
// Connect RootBridge
//
VarConout = BdsLibGetVariableAndSize (
VarConsoleOut,
&gEfiGlobalVariableGuid,
&DevicePathSize
);
VarConin = BdsLibGetVariableAndSize (
VarConsoleInp,
&gEfiGlobalVariableGuid,
&DevicePathSize
);
if (VarConout == NULL || VarConin == NULL) {
//
// Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
//
DetectAndPreparePlatformPciDevicePaths (FALSE);
//
// Have chance to connect the platform default console,
// the platform default console is the minimue device group
// the platform should support
//
for (Index = 0; PlatformConsole[Index].DevicePath != NULL; ++Index) {
//
// Update the console variable with the connect type
//
if ((PlatformConsole[Index].ConnectType & CONSOLE_IN) == CONSOLE_IN) {
BdsLibUpdateConsoleVariable (VarConsoleInp, PlatformConsole[Index].DevicePath, NULL);
}
if ((PlatformConsole[Index].ConnectType & CONSOLE_OUT) == CONSOLE_OUT) {
BdsLibUpdateConsoleVariable (VarConsoleOut, PlatformConsole[Index].DevicePath, NULL);
}
if ((PlatformConsole[Index].ConnectType & STD_ERROR) == STD_ERROR) {
BdsLibUpdateConsoleVariable (VarErrorOut, PlatformConsole[Index].DevicePath, NULL);
}
}
} else {
//
// Only detect VGA device and add them to ConOut
//
DetectAndPreparePlatformPciDevicePaths (TRUE);
}
//
// Connect the all the default console with current cosole variable
//
Status = BdsLibConnectAllDefaultConsoles ();
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
}
/**
Connect with predefined platform connect sequence,
the OEM/IBV can customize with their own connect sequence.
**/
VOID
PlatformBdsConnectSequence (
VOID
)
{
UINTN Index;
DEBUG ((EFI_D_INFO, "PlatformBdsConnectSequence\n"));
Index = 0;
//
// Here we can get the customized platform connect sequence
// Notes: we can connect with new variable which record the
// last time boots connect device path sequence
//
while (gPlatformConnectSequence[Index] != NULL) {
//
// Build the platform boot option
//
BdsLibConnectDevicePath (gPlatformConnectSequence[Index]);
Index++;
}
}
/**
Load the predefined driver option, OEM/IBV can customize this
to load their own drivers
@param BdsDriverLists - The header of the driver option link list.
**/
VOID
PlatformBdsGetDriverOption (
IN OUT LIST_ENTRY *BdsDriverLists
)
{
UINTN Index;
Index = 0;
DEBUG ((EFI_D_INFO, "PlatformBdsGetDriverOption\n"));
//
// Here we can get the customized platform driver option
//
while (gPlatformDriverOption[Index] != NULL) {
//
// Build the platform boot option
//
BdsLibRegisterNewOption (BdsDriverLists, gPlatformDriverOption[Index], NULL, L"DriverOrder");
Index ++;
}
}
/**
Perform the platform diagnostic, such like test memory. OEM/IBV also
can customize this function to support specific platform diagnostic.
@param MemoryTestLevel The memory test intensive level
@param QuietBoot Indicate if need to enable the quiet boot
@param BaseMemoryTest A pointer to BdsMemoryTest()
**/
VOID
PlatformBdsDiagnostics (
IN EXTENDMEM_COVERAGE_LEVEL MemoryTestLevel,
IN BOOLEAN QuietBoot,
IN BASEM_MEMORY_TEST BaseMemoryTest
)
{
EFI_STATUS Status;
DEBUG ((EFI_D_INFO, "PlatformBdsDiagnostics\n"));
//
// Here we can decide if we need to show
// the diagnostics screen
// Notes: this quiet boot code should be remove
// from the graphic lib
//
if (QuietBoot) {
EnableQuietBoot (PcdGetPtr(PcdLogoFile));
//
// Perform system diagnostic
//
Status = BaseMemoryTest (MemoryTestLevel);
if (EFI_ERROR (Status)) {
DisableQuietBoot ();
}
return;
}
//
// Perform system diagnostic
//
Status = BaseMemoryTest (MemoryTestLevel);
}
/**
The function will connect root bridge
@return EFI_SUCCESS Connect RootBridge successfully.
**/
EFI_STATUS
ConnectRootBridge (
VOID
)
{
EFI_STATUS Status;
EFI_HANDLE RootHandle;
//
// Make all the PCI_IO protocols on PCI Seg 0 show up
//
BdsLibConnectDevicePath (gPlatformRootBridges[0]);
Status = gBS->LocateDevicePath (
&gEfiDevicePathProtocolGuid,
&gPlatformRootBridges[0],
&RootHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->ConnectController (RootHandle, NULL, NULL, FALSE);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
}
/**
The function will execute with as the platform policy, current policy
is driven by boot mode. IBV/OEM can customize this code for their specific
policy action.
@param DriverOptionList The header of the driver option link list
@param BootOptionList The header of the boot option link list
@param ProcessCapsules A pointer to ProcessCapsules()
@param BaseMemoryTest A pointer to BaseMemoryTest()
**/
VOID
EFIAPI
PlatformBdsPolicyBehavior (
IN LIST_ENTRY *DriverOptionList,
IN LIST_ENTRY *BootOptionList,
IN PROCESS_CAPSULES ProcessCapsules,
IN BASEM_MEMORY_TEST BaseMemoryTest
)
{
EFI_STATUS Status;
UINT16 Timeout;
EFI_EVENT UserInputDurationTime;
LIST_ENTRY *Link;
BDS_COMMON_OPTION *BootOption;
UINTN Index;
EFI_INPUT_KEY Key;
EFI_TPL OldTpl;
EFI_BOOT_MODE BootMode;
DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior\n"));
ConnectRootBridge ();
//
// Init the time out value
//
Timeout = PcdGet16 (PcdPlatformBootTimeOut);
//
// Load the driver option as the driver option list
//
PlatformBdsGetDriverOption (DriverOptionList);
//
// Get current Boot Mode
//
Status = BdsLibGetBootMode (&BootMode);
DEBUG ((EFI_D_ERROR, "Boot Mode:%x\n", BootMode));
//
// Go the different platform policy with different boot mode
// Notes: this part code can be change with the table policy
//
ASSERT (BootMode == BOOT_WITH_FULL_CONFIGURATION);
//
// Connect platform console
//
Status = PlatformBdsConnectConsole (gPlatformConsole);
if (EFI_ERROR (Status)) {
//
// Here OEM/IBV can customize with defined action
//
PlatformBdsNoConsoleAction ();
}
//
// Create a 300ms duration event to ensure user has enough input time to enter Setup
//
Status = gBS->CreateEvent (
EVT_TIMER,
0,
NULL,
NULL,
&UserInputDurationTime
);
ASSERT (Status == EFI_SUCCESS);
Status = gBS->SetTimer (UserInputDurationTime, TimerRelative, 3000000);
ASSERT (Status == EFI_SUCCESS);
//
// Memory test and Logo show
//
PlatformBdsDiagnostics (IGNORE, TRUE, BaseMemoryTest);
//
// Perform some platform specific connect sequence
//
PlatformBdsConnectSequence ();
//
// In BOOT_WITH_FULL_CONFIGURATION boot mode, should always connect every device
// and do enumerate all the default boot options. But in development system board, the boot mode
// cannot be BOOT_ASSUMING_NO_CONFIGURATION_CHANGES because the machine box
// is always open. So the following code only do the ConnectAll and EnumerateAll at first boot.
//
Status = BdsLibBuildOptionFromVar (BootOptionList, L"BootOrder");
if (EFI_ERROR(Status)) {
//
// If cannot find "BootOrder" variable, it may be first boot.
// Try to connect all devices and enumerate all boot options here.
//
BdsLibConnectAll ();
BdsLibEnumerateAllBootOption (BootOptionList);
}
//
// To give the User a chance to enter Setup here, if user set TimeOut is 0.
// BDS should still give user a chance to enter Setup
//
// Connect first boot option, and then check user input before exit
//
for (Link = BootOptionList->ForwardLink; Link != BootOptionList;Link = Link->ForwardLink) {
BootOption = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);
if (!IS_LOAD_OPTION_TYPE (BootOption->Attribute, LOAD_OPTION_ACTIVE)) {
//
// skip the header of the link list, becuase it has no boot option
//
continue;
} else {
//
// Make sure the boot option device path connected, but ignore the BBS device path
//
if (DevicePathType (BootOption->DevicePath) != BBS_DEVICE_PATH) {
BdsLibConnectDevicePath (BootOption->DevicePath);
}
break;
}
}
//
// Check whether the user input after the duration time has expired
//
OldTpl = EfiGetCurrentTpl();
gBS->RestoreTPL (TPL_APPLICATION);
gBS->WaitForEvent (1, &UserInputDurationTime, &Index);
gBS->CloseEvent (UserInputDurationTime);
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
gBS->RaiseTPL (OldTpl);
if (!EFI_ERROR (Status)) {
//
// Enter Setup if user input
//
Timeout = 0xffff;
PlatformBdsEnterFrontPage (Timeout, FALSE);
}
}
/**
Hook point after a boot attempt succeeds. We don't expect a boot option to
return, so the UEFI 2.0 specification defines that you will default to an
interactive mode and stop processing the BootOrder list in this case. This
is also a platform implementation and can be customized by IBV/OEM.
@param Option Pointer to Boot Option that succeeded to boot.
**/
VOID
EFIAPI
PlatformBdsBootSuccess (
IN BDS_COMMON_OPTION *Option
)
{
CHAR16 *TmpStr;
DEBUG ((EFI_D_INFO, "PlatformBdsBootSuccess\n"));
//
// If Boot returned with EFI_SUCCESS and there is not in the boot device
// select loop then we need to pop up a UI and wait for user input.
//
TmpStr = Option->StatusString;
if (TmpStr != NULL) {
BdsLibOutputStrings (gST->ConOut, TmpStr, Option->Description, L"\n\r", NULL);
FreePool (TmpStr);
}
}
/**
Hook point after a boot attempt fails.
@param Option Pointer to Boot Option that failed to boot.
@param Status Status returned from failed boot.
@param ExitData Exit data returned from failed boot.
@param ExitDataSize Exit data size returned from failed boot.
**/
VOID
EFIAPI
PlatformBdsBootFail (
IN BDS_COMMON_OPTION *Option,
IN EFI_STATUS Status,
IN CHAR16 *ExitData,
IN UINTN ExitDataSize
)
{
CHAR16 *TmpStr;
DEBUG ((EFI_D_INFO, "PlatformBdsBootFail\n"));
//
// If Boot returned with failed status then we need to pop up a UI and wait
// for user input.
//
TmpStr = Option->StatusString;
if (TmpStr != NULL) {
BdsLibOutputStrings (gST->ConOut, TmpStr, Option->Description, L"\n\r", NULL);
FreePool (TmpStr);
}
}
/**
This function is remained for IBV/OEM to do some platform action,
if there no console device can be connected.
@return EFI_SUCCESS Direct return success now.
**/
EFI_STATUS
PlatformBdsNoConsoleAction (
VOID
)
{
DEBUG ((EFI_D_INFO, "PlatformBdsNoConsoleAction\n"));
return EFI_SUCCESS;
}
/**
This function locks platform flash that is not allowed to be updated during normal boot path.
The flash layout is platform specific.
**/
VOID
EFIAPI
PlatformBdsLockNonUpdatableFlash (
VOID
)
{
DEBUG ((EFI_D_INFO, "PlatformBdsLockNonUpdatableFlash\n"));
return ;
}
/**
Lock the ConsoleIn device in system table. All key
presses will be ignored until the Password is typed in. The only way to
disable the password is to type it in to a ConIn device.
@param Password Password used to lock ConIn device.
@retval EFI_SUCCESS lock the Console In Spliter virtual handle successfully.
@retval EFI_UNSUPPORTED Password not found
**/
EFI_STATUS
EFIAPI
LockKeyboards (
IN CHAR16 *Password
)
{
return EFI_UNSUPPORTED;
}
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