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DxeIpl
ConPlatform
ConSplitter
GraphicsConsole
Terminal
DevicePath

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3069 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xgu3
2007-07-05 07:05:28 +00:00
parent 8a7f0c4c6b
commit 95276127e3
63 changed files with 23601 additions and 7 deletions
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56
MdeModulePkg/Core/DxeIplPeim/CommonHeader.h Normal file
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/**@file
Common header file shared by all source files.
This file includes package header files, library classes and protocol, PPI & GUID definitions.
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. 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 __COMMON_HEADER_H_
#define __COMMON_HEADER_H_
//
// The package level header files this module uses
//
#include <PiPei.h>
//
// The protocols, PPI and GUID defintions for this module
//
#include <Ppi/DxeIpl.h>
#include <Ppi/S3Resume.h>
#include <Protocol/EdkDecompress.h>
#include <Ppi/EndOfPeiPhase.h>
#include <Protocol/CustomizedDecompress.h>
#include <Protocol/Decompress.h>
#include <Ppi/Security.h>
#include <Ppi/SectionExtraction.h>
#include <Ppi/LoadFile.h>
#include <Ppi/RecoveryModule.h>
#include <Ppi/MemoryDiscovered.h>
//
// The Library classes this module consumes
//
#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/PeCoffLoaderLib.h>
#include <Library/UefiDecompressLib.h>
#include <Library/CustomDecompressLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/PeCoffLib.h>
#endif

28
MdeModulePkg/Core/DxeIplPeim/DxeIpl.dxs Normal file
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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
DxeIpl.dxs
Abstract:
Dependency expression file for DXE Initial Program Loader PEIM.
--*/
#include <PeimDepex.h>
DEPENDENCY_START
EFI_PEI_PERMANENT_MEMORY_INSTALLED_PPI_GUID
DEPENDENCY_END

117
MdeModulePkg/Core/DxeIplPeim/DxeIpl.h Normal file
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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
DxeIpl.h
Abstract:
--*/
#ifndef __PEI_DXEIPL_H__
#define __PEI_DXEIPL_H__
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#define STACK_SIZE 0x20000
#define BSP_STORE_SIZE 0x4000
#define GET_OCCUPIED_SIZE(ActualSize, Alignment) ((ActualSize + (Alignment - 1)) & ~(Alignment - 1))
extern BOOLEAN gInMemory;
EFI_STATUS
PeiFindFile (
IN UINT8 Type,
IN UINT16 SectionType,
OUT EFI_GUID *FileName,
OUT VOID **Pe32Data
)
;
EFI_STATUS
PeiLoadFile (
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader,
IN VOID *Pe32Data,
OUT EFI_PHYSICAL_ADDRESS *ImageAddress,
OUT UINT64 *ImageSize,
OUT EFI_PHYSICAL_ADDRESS *EntryPoint
)
;
EFI_STATUS
GetImageReadFunction (
IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
;
EFI_STATUS
PeiImageRead (
IN VOID *FileHandle,
IN UINTN FileOffset,
IN OUT UINTN *ReadSize,
OUT VOID *Buffer
)
;
EFI_STATUS
EFIAPI
DxeIplLoadFile (
IN EFI_PEI_FV_FILE_LOADER_PPI *This,
IN EFI_FFS_FILE_HEADER *FfsHeader,
OUT EFI_PHYSICAL_ADDRESS *ImageAddress,
OUT UINT64 *ImageSize,
OUT EFI_PHYSICAL_ADDRESS *EntryPoint
);
EFI_STATUS
ShadowDxeIpl (
IN EFI_FFS_FILE_HEADER *DxeIpl,
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader
);
EFI_STATUS
EFIAPI
DxeLoadCore (
IN EFI_DXE_IPL_PPI *This,
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_HOB_POINTERS HobList
);
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList,
IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal
);
EFI_STATUS
PeiProcessFile (
IN UINT16 SectionType,
IN EFI_FFS_FILE_HEADER *FfsFileHeader,
OUT VOID **Pe32Data,
IN EFI_PEI_HOB_POINTERS *OrigHob
);
EFI_STATUS
EFIAPI
PeimInitializeDxeIpl (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
);
#endif

171
MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf Normal file
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#/** @file
# Component description file for DxeIpl module
#
# The responsibility of this module is to load the DXE Core from a Firmware Volume. This implementation i used to load a 32-bit DXE Core.
# Copyright (c) 2006 - 2007, Intel Corporation
#
# All rights reserved. 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 Section - statements that will be processed to create a Makefile.
#
################################################################################
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DxeIpl
FILE_GUID = 86D70125-BAA3-4296-A62F-602BEBBB9081
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = PeimInitializeDxeIpl
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
################################################################################
#
# Sources Section - list of files that are required for the build to succeed.
#
################################################################################
[Sources.common]
DxeIpl.h
DxeLoad.c
CommonHeader.h
[Sources.Ia32]
Ia32/VirtualMemory.h
Ia32/VirtualMemory.c
Ia32/DxeLoadFunc.c
Ia32/ImageRead.c
[Sources.X64]
X64/DxeLoadFunc.c
Ia32/ImageRead.c
[Sources.IPF]
Ipf/DxeLoadFunc.c
Ipf/ImageRead.c
[Sources.EBC]
X64/DxeLoadFunc.c
Ia32/ImageRead.c
################################################################################
#
# Package Dependency Section - list of Package files that are required for
# this module.
#
################################################################################
[Packages]
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec
################################################################################
#
# Library Class Section - list of Library Classes that are required for
# this module.
#
################################################################################
[LibraryClasses]
PeCoffLib
PcdLib
MemoryAllocationLib
BaseMemoryLib
PeiServicesTablePointerLib
CustomDecompressLib
TianoDecompressLib
UefiDecompressLib
EdkPeCoffLoaderLib
CacheMaintenanceLib
ReportStatusCodeLib
PeiServicesLib
HobLib
BaseLib
PeimEntryPoint
DebugLib
################################################################################
#
# Guid C Name Section - list of Guids that this module uses or produces.
#
################################################################################
################################################################################
#
# Protocol C Name Section - list of Protocol and Protocol Notify C Names
# that this module uses or produces.
#
################################################################################
[Protocols]
gEfiCustomizedDecompressProtocolGuid # PROTOCOL SOMETIMES_PRODUCED
gEfiTianoDecompressProtocolGuid # PROTOCOL SOMETIMES_PRODUCED
gEfiDecompressProtocolGuid # PROTOCOL SOMETIMES_PRODUCED
################################################################################
#
# PPI C Name Section - list of PPI and PPI Notify C Names that this module
# uses or produces.
#
################################################################################
[Ppis]
gEfiPeiSecurityPpiGuid # PPI SOMETIMES_CONSUMED
gEfiPeiSectionExtractionPpiGuid # PPI SOMETIMES_CONSUMED
gEfiPeiS3ResumePpiGuid # PPI SOMETIMES_CONSUMED
gEfiPeiRecoveryModulePpiGuid # PPI SOMETIMES_CONSUMED
gEfiEndOfPeiSignalPpiGuid # PPI SOMETIMES_PRODUCED
gEfiPeiFvFileLoaderPpiGuid # PPI SOMETIMES_PRODUCED
gEfiDxeIplPpiGuid # PPI SOMETIMES_PRODUCED
gEfiPeiPeCoffLoaderGuid
################################################################################
#
# Pcd FEATURE_FLAG - list of PCDs that this module is coded for.
#
################################################################################
[PcdsFeatureFlag.common]
PcdDxeIplSupportCustomDecompress|gEfiEdkModulePkgTokenSpaceGuid
PcdDxeIplSupportTianoDecompress|gEfiEdkModulePkgTokenSpaceGuid
PcdDxeIplSupportEfiDecompress|gEfiEdkModulePkgTokenSpaceGuid
PcdDxeIplBuildShareCodeHobs|gEfiEdkModulePkgTokenSpaceGuid
[PcdsFeatureFlag.IA32]
PcdDxeIplSwitchToLongMode|gEfiMdeModulePkgTokenSpaceGuid
################################################################################
#
# Dependency Expression Section - list of Dependency expressions that are required for
# this module.
#
################################################################################
[Depex]
gEfiPeiMemoryDiscoveredPpiGuid

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MdeModulePkg/Core/DxeIplPeim/DxeIpl.msa Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<MsaHeader>
<ModuleName>DxeIpl</ModuleName>
<ModuleType>PEIM</ModuleType>
<GuidValue>86D70125-BAA3-4296-A62F-602BEBBB9081</GuidValue>
<Version>1.0</Version>
<Abstract>Component description file for DxeIpl module</Abstract>
<Description>The responsibility of this module is to load the DXE Core from a Firmware Volume. This implementation i used to load a 32-bit DXE Core.</Description>
<Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
<License>All rights reserved. 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.</License>
<Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
</MsaHeader>
<ModuleDefinitions>
<SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
<BinaryModule>false</BinaryModule>
<OutputFileBasename>DxeIpl</OutputFileBasename>
</ModuleDefinitions>
<LibraryClassDefinitions>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>DebugLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>PeimEntryPoint</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>BaseLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>HobLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>PeiServicesLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>ReportStatusCodeLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>CacheMaintenanceLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>EdkPeCoffLoaderLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>UefiDecompressLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>TianoDecompressLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>CustomDecompressLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>PeiServicesTablePointerLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>BaseMemoryLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>MemoryAllocationLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>PcdLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>PeCoffLib</Keyword>
</LibraryClass>
</LibraryClassDefinitions>
<SourceFiles>
<Filename>DxeLoad.c</Filename>
<Filename>DxeIpl.h</Filename>
<Filename>DxeIpl.dxs</Filename>
<Filename SupArchList="IA32 X64 EBC">Ia32/ImageRead.c</Filename>
<Filename SupArchList="IA32">Ia32/DxeLoadFunc.c</Filename>
<Filename SupArchList="IA32">Ia32/VirtualMemory.c</Filename>
<Filename SupArchList="IA32">Ia32/VirtualMemory.h</Filename>
<Filename SupArchList="X64 EBC">X64/DxeLoadFunc.c</Filename>
<Filename SupArchList="IPF">Ipf/ImageRead.c</Filename>
<Filename SupArchList="IPF">Ipf/DxeLoadFunc.c</Filename>
</SourceFiles>
<PackageDependencies>
<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
<Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
</PackageDependencies>
<Protocols>
<Protocol Usage="SOMETIMES_PRODUCED">
<ProtocolCName>gEfiDecompressProtocolGuid</ProtocolCName>
</Protocol>
<Protocol Usage="SOMETIMES_PRODUCED">
<ProtocolCName>gEfiTianoDecompressProtocolGuid</ProtocolCName>
</Protocol>
<Protocol Usage="SOMETIMES_PRODUCED">
<ProtocolCName>gEfiCustomizedDecompressProtocolGuid</ProtocolCName>
</Protocol>
</Protocols>
<PPIs>
<Ppi Usage="SOMETIMES_PRODUCED">
<PpiCName>gEfiDxeIplPpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_PRODUCED">
<PpiCName>gEfiPeiFvFileLoaderPpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_PRODUCED">
<PpiCName>gEfiEndOfPeiSignalPpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_CONSUMED">
<PpiCName>gEfiPeiRecoveryModulePpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_CONSUMED">
<PpiCName>gEfiPeiS3ResumePpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_CONSUMED">
<PpiCName>gEfiPeiSectionExtractionPpiGuid</PpiCName>
</Ppi>
<Ppi Usage="SOMETIMES_CONSUMED">
<PpiCName>gEfiPeiSecurityPpiGuid</PpiCName>
</Ppi>
</PPIs>
<Guids>
<GuidCNames Usage="SOMETIMES_CONSUMED">
<GuidCName>gEfiPeiPeCoffLoaderGuid</GuidCName>
</GuidCNames>
</Guids>
<Externs>
<Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
<Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
<Extern>
<ModuleEntryPoint>PeimInitializeDxeIpl</ModuleEntryPoint>
</Extern>
</Externs>
<PcdCoded>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED" SupArchList="IA32">
<C_Name>PcdDxeIplSwitchToLongMode</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL will load a 64-bit DxeCore.</HelpText>
</PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplBuildShareCodeHobs</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>FALSE</DefaultValue>
<HelpText>If this feature is enabled, DXE IPL will build a series of HOBs to share code with DXE Core.</HelpText>
</PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplSupportEfiDecompress</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL must support decompressing files compressed with the EFI Compression algorithm</HelpText>
</PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplSupportTianoDecompress</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL must support decompressing files compressed with the Tiano Compression algorithm</HelpText>
</PcdEntry>
<PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
<C_Name>PcdDxeIplSupportCustomDecompress</C_Name>
<TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
<DefaultValue>TRUE</DefaultValue>
<HelpText>If this feature is enabled, then the DXE IPL must support decompressing files compressed with the Custom Compression algorithm</HelpText>
</PcdEntry>
</PcdCoded>
</ModuleSurfaceArea>

980
MdeModulePkg/Core/DxeIplPeim/DxeLoad.c Normal file
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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
DxeLoad.c
Abstract:
Last PEIM.
Responsibility of this module is to load the DXE Core from a Firmware Volume.
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
// porting note remove later
#include "Common/DecompressLibraryHob.h"
#include "FrameworkPei.h"
// end of remove later
BOOLEAN gInMemory = FALSE;
//
// Module Globals used in the DXE to PEI handoff
// These must be module globals, so the stack can be switched
//
static EFI_DXE_IPL_PPI mDxeIplPpi = {
DxeLoadCore
};
static EFI_PEI_FV_FILE_LOADER_PPI mLoadFilePpi = {
DxeIplLoadFile
};
static EFI_PEI_PPI_DESCRIPTOR mPpiList[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gEfiPeiFvFileLoaderPpiGuid,
&mLoadFilePpi
},
{
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiDxeIplPpiGuid,
&mDxeIplPpi
}
};
static EFI_PEI_PPI_DESCRIPTOR mPpiSignal = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiEndOfPeiSignalPpiGuid,
NULL
};
GLOBAL_REMOVE_IF_UNREFERENCED DECOMPRESS_LIBRARY gEfiDecompress = {
UefiDecompressGetInfo,
UefiDecompress
};
GLOBAL_REMOVE_IF_UNREFERENCED DECOMPRESS_LIBRARY gCustomDecompress = {
CustomDecompressGetInfo,
CustomDecompress
};
EFI_STATUS
EFIAPI
PeimInitializeDxeIpl (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Initializes the Dxe Ipl PPI
Arguments:
FfsHeader - Pointer to FFS file header
PeiServices - General purpose services available to every PEIM.
Returns:
EFI_SUCCESS
--*/
{
EFI_STATUS Status;
EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;
EFI_BOOT_MODE BootMode;
Status = PeiServicesGetBootMode (&BootMode);
ASSERT_EFI_ERROR (Status);
if (!gInMemory && (BootMode != BOOT_ON_S3_RESUME)) {
//
// The DxeIpl has not yet been shadowed
//
PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();
//
// Shadow DxeIpl and then re-run its entry point
//
Status = ShadowDxeIpl (FfsHeader, PeiEfiPeiPeCoffLoader);
} else {
//
// Install FvFileLoader and DxeIpl PPIs.
//
Status = PeiServicesInstallPpi (mPpiList);
ASSERT_EFI_ERROR(Status);
}
return Status;
}
EFI_STATUS
EFIAPI
DxeLoadCore (
IN EFI_DXE_IPL_PPI *This,
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_HOB_POINTERS HobList
)
/*++
Routine Description:
Main entry point to last PEIM
Arguments:
This - Entry point for DXE IPL PPI
PeiServices - General purpose services available to every PEIM.
HobList - Address to the Pei HOB list
Returns:
EFI_SUCCESS - DEX core was successfully loaded.
EFI_OUT_OF_RESOURCES - There are not enough resources to load DXE core.
--*/
{
EFI_STATUS Status;
EFI_GUID DxeCoreFileName;
EFI_GUID FirmwareFileName;
VOID *Pe32Data;
VOID *FvImageData;
EFI_PHYSICAL_ADDRESS DxeCoreAddress;
UINT64 DxeCoreSize;
EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint;
EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;
EFI_BOOT_MODE BootMode;
EFI_PEI_RECOVERY_MODULE_PPI *PeiRecovery;
EFI_PEI_S3_RESUME_PPI *S3Resume;
// PERF_START (PeiServices, L"DxeIpl", NULL, 0);
//
// if in S3 Resume, restore configure
//
Status = PeiServicesGetBootMode (&BootMode);
ASSERT_EFI_ERROR(Status);
if (BootMode == BOOT_ON_S3_RESUME) {
Status = PeiServicesLocatePpi (
&gEfiPeiS3ResumePpiGuid,
0,
NULL,
(VOID **)&S3Resume
);
ASSERT_EFI_ERROR (Status);
Status = S3Resume->S3RestoreConfig (PeiServices);
ASSERT_EFI_ERROR (Status);
} else if (BootMode == BOOT_IN_RECOVERY_MODE) {
Status = PeiServicesLocatePpi (
&gEfiPeiRecoveryModulePpiGuid,
0,
NULL,
(VOID **)&PeiRecovery
);
ASSERT_EFI_ERROR (Status);
Status = PeiRecovery->LoadRecoveryCapsule (PeiServices, PeiRecovery);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Load Recovery Capsule Failed.(Status = %r)\n", Status));
CpuDeadLoop ();
}
//
// Now should have a HOB with the DXE core w/ the old HOB destroyed
//
}
//
// Install the PEI Protocols that are shared between PEI and DXE
//
PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();
ASSERT (PeiEfiPeiPeCoffLoader != NULL);
//
// Find the EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE type compressed Firmware Volume file
// The file found will be processed by PeiProcessFile: It will first be decompressed to
// a normal FV, then a corresponding FV type hob will be built.
//
Status = PeiFindFile (
EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE,
EFI_SECTION_FIRMWARE_VOLUME_IMAGE,
&FirmwareFileName,
&FvImageData
);
//
// Find the DXE Core in a Firmware Volume
//
Status = PeiFindFile (
EFI_FV_FILETYPE_DXE_CORE,
EFI_SECTION_PE32,
&DxeCoreFileName,
&Pe32Data
);
ASSERT_EFI_ERROR (Status);
//
// Load the DXE Core from a Firmware Volume
//
Status = PeiLoadFile (
PeiEfiPeiPeCoffLoader,
Pe32Data,
&DxeCoreAddress,
&DxeCoreSize,
&DxeCoreEntryPoint
);
ASSERT_EFI_ERROR (Status);
//
// Add HOB for the DXE Core
//
BuildModuleHob (
&DxeCoreFileName,
DxeCoreAddress,
DxeCoreSize,
DxeCoreEntryPoint
);
//
// Report Status Code EFI_SW_PEI_PC_HANDOFF_TO_NEXT
//
REPORT_STATUS_CODE (
EFI_PROGRESS_CODE,
EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_CORE_PC_HANDOFF_TO_NEXT
);
if (FeaturePcdGet (PcdDxeIplBuildShareCodeHobs)) {
if (FeaturePcdGet (PcdDxeIplSupportEfiDecompress)) {
//
// Add HOB for the EFI Decompress Protocol
//
BuildGuidDataHob (
&gEfiDecompressProtocolGuid,
(VOID *)&gEfiDecompress,
sizeof (gEfiDecompress)
);
}
if (FeaturePcdGet (PcdDxeIplSupportCustomDecompress)) {
//
// Add HOB for the user customized Decompress Protocol
//
BuildGuidDataHob (
&gEfiCustomizedDecompressProtocolGuid,
(VOID *)&gCustomDecompress,
sizeof (gCustomDecompress)
);
}
//
// Add HOB for the PE/COFF Loader Protocol
//
BuildGuidDataHob (
&gEfiPeiPeCoffLoaderGuid,
(VOID *)&PeiEfiPeiPeCoffLoader,
sizeof (VOID *)
);
}
//
// Transfer control to the DXE Core
// The handoff state is simply a pointer to the HOB list
//
DEBUG ((EFI_D_INFO, "DXE Core Entry Point 0x%08x\n", (UINTN) DxeCoreEntryPoint));
HandOffToDxeCore (DxeCoreEntryPoint, HobList, &mPpiSignal);
//
// If we get here, then the DXE Core returned. This is an error
// Dxe Core should not return.
//
ASSERT (FALSE);
CpuDeadLoop ();
return EFI_OUT_OF_RESOURCES;
}
EFI_STATUS
PeiFindFile (
IN UINT8 Type,
IN UINT16 SectionType,
OUT EFI_GUID *FileName,
OUT VOID **Pe32Data
)
/*++
Routine Description:
Finds a PE/COFF of a specific Type and SectionType in the Firmware Volumes
described in the HOB list. Able to search in a compression set in a FFS file.
But only one level of compression is supported, that is, not able to search
in a compression set that is within another compression set.
Arguments:
Type - The Type of file to retrieve
SectionType - The type of section to retrieve from a file
FileName - The name of the file found in the Firmware Volume
Pe32Data - Pointer to the beginning of the PE/COFF file found in the Firmware Volume
Returns:
EFI_SUCCESS - The file was found, and the name is returned in FileName, and a pointer to
the PE/COFF image is returned in Pe32Data
EFI_NOT_FOUND - The file was not found in the Firmware Volumes present in the HOB List
--*/
{
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
EFI_FFS_FILE_HEADER *FfsFileHeader;
EFI_STATUS Status;
EFI_PEI_HOB_POINTERS Hob;
FwVolHeader = NULL;
FfsFileHeader = NULL;
Status = EFI_SUCCESS;
//
// For each Firmware Volume, look for a specified type
// of file and break out until no one is found
//
Hob.Raw = GetHobList ();
while ((Hob.Raw = GetNextHob (EFI_HOB_TYPE_FV, Hob.Raw)) != NULL) {
FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) (Hob.FirmwareVolume->BaseAddress);
//
// Make sure the FV HOB does not get corrupted.
//
ASSERT (FwVolHeader->Signature == EFI_FVH_SIGNATURE);
Status = PeiServicesFfsFindNextFile (
Type,
FwVolHeader,
&FfsFileHeader
);
if (!EFI_ERROR (Status)) {
Status = PeiProcessFile (
SectionType,
FfsFileHeader,
Pe32Data,
&Hob
);
CopyMem (FileName, &FfsFileHeader->Name, sizeof (EFI_GUID));
//
// Find all Fv type ffs to get all FvImage and add them into FvHob
//
if (!EFI_ERROR (Status) && (Type != EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE)) {
return EFI_SUCCESS;
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
}
return EFI_NOT_FOUND;
}
EFI_STATUS
PeiLoadFile (
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader,
IN VOID *Pe32Data,
OUT EFI_PHYSICAL_ADDRESS *ImageAddress,
OUT UINT64 *ImageSize,
OUT EFI_PHYSICAL_ADDRESS *EntryPoint
)
/*++
Routine Description:
Loads and relocates a PE/COFF image into memory.
Arguments:
PeiEfiPeiPeCoffLoader - Pointer to a PE COFF loader protocol
Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated
ImageAddress - The base address of the relocated PE/COFF image
ImageSize - The size of the relocated PE/COFF image
EntryPoint - The entry point of the relocated PE/COFF image
Returns:
EFI_SUCCESS - The file was loaded and relocated
EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file
--*/
{
EFI_STATUS Status;
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
ZeroMem (&ImageContext, sizeof (ImageContext));
ImageContext.Handle = Pe32Data;
Status = GetImageReadFunction (&ImageContext);
ASSERT_EFI_ERROR (Status);
Status = PeiEfiPeiPeCoffLoader->GetImageInfo (PeiEfiPeiPeCoffLoader, &ImageContext);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Allocate Memory for the image
//
ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) AllocatePages (EFI_SIZE_TO_PAGES ((UINT32) ImageContext.ImageSize));
ASSERT (ImageContext.ImageAddress != 0);
//
// Load the image to our new buffer
//
Status = PeiEfiPeiPeCoffLoader->LoadImage (PeiEfiPeiPeCoffLoader, &ImageContext);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Relocate the image in our new buffer
//
Status = PeiEfiPeiPeCoffLoader->RelocateImage (PeiEfiPeiPeCoffLoader, &ImageContext);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Flush the instruction cache so the image data is written before we execute it
//
InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);
*ImageAddress = ImageContext.ImageAddress;
*ImageSize = ImageContext.ImageSize;
*EntryPoint = ImageContext.EntryPoint;
return EFI_SUCCESS;
}
EFI_STATUS
ShadowDxeIpl (
IN EFI_FFS_FILE_HEADER *DxeIplFileHeader,
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader
)
/*++
Routine Description:
Shadow the DXE IPL to a different memory location. This occurs after permanent
memory has been discovered.
Arguments:
DxeIplFileHeader - Pointer to the FFS file header of the DXE IPL driver
PeiEfiPeiPeCoffLoader - Pointer to a PE COFF loader protocol
Returns:
EFI_SUCCESS - DXE IPL was successfully shadowed to a different memory location.
EFI_ ERROR - The shadow was unsuccessful.
--*/
{
UINTN SectionLength;
UINTN OccupiedSectionLength;
EFI_PHYSICAL_ADDRESS DxeIplAddress;
UINT64 DxeIplSize;
EFI_PHYSICAL_ADDRESS DxeIplEntryPoint;
EFI_STATUS Status;
EFI_COMMON_SECTION_HEADER *Section;
Section = (EFI_COMMON_SECTION_HEADER *) (DxeIplFileHeader + 1);
while ((Section->Type != EFI_SECTION_PE32) && (Section->Type != EFI_SECTION_TE)) {
SectionLength = *(UINT32 *) (Section->Size) & 0x00ffffff;
OccupiedSectionLength = GET_OCCUPIED_SIZE (SectionLength, 4);
Section = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) Section + OccupiedSectionLength);
}
//
// Relocate DxeIpl into memory by using loadfile service
//
Status = PeiLoadFile (
PeiEfiPeiPeCoffLoader,
(VOID *) (Section + 1),
&DxeIplAddress,
&DxeIplSize,
&DxeIplEntryPoint
);
if (Status == EFI_SUCCESS) {
//
// Set gInMemory global variable to TRUE to indicate the dxeipl is shadowed.
//
*(BOOLEAN *) ((UINTN) &gInMemory + (UINTN) DxeIplEntryPoint - (UINTN) _ModuleEntryPoint) = TRUE;
Status = ((EFI_PEIM_ENTRY_POINT) (UINTN) DxeIplEntryPoint) ((EFI_PEI_FILE_HANDLE *) DxeIplFileHeader, GetPeiServicesTablePointer());
}
return Status;
}
EFI_STATUS
EFIAPI
DxeIplLoadFile (
IN EFI_PEI_FV_FILE_LOADER_PPI *This,
IN EFI_FFS_FILE_HEADER *FfsHeader,
OUT EFI_PHYSICAL_ADDRESS *ImageAddress,
OUT UINT64 *ImageSize,
OUT EFI_PHYSICAL_ADDRESS *EntryPoint
)
/*++
Routine Description:
Given a pointer to an FFS file containing a PE32 image, get the
information on the PE32 image, and then "load" it so that it
can be executed.
Arguments:
This - pointer to our file loader protocol
FfsHeader - pointer to the FFS file header of the FFS file that
contains the PE32 image we want to load
ImageAddress - returned address where the PE32 image is loaded
ImageSize - returned size of the loaded PE32 image
EntryPoint - entry point to the loaded PE32 image
Returns:
EFI_SUCCESS - The FFS file was successfully loaded.
EFI_ERROR - Unable to load the FFS file.
--*/
{
EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;
EFI_STATUS Status;
VOID *Pe32Data;
Pe32Data = NULL;
PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();
//
// Preprocess the FFS file to get a pointer to the PE32 information
// in the enclosed PE32 image.
//
Status = PeiProcessFile (
EFI_SECTION_PE32,
FfsHeader,
&Pe32Data,
NULL
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Load the PE image from the FFS file
//
Status = PeiLoadFile (
PeiEfiPeiPeCoffLoader,
Pe32Data,
ImageAddress,
ImageSize,
EntryPoint
);
return Status;
}
EFI_STATUS
PeiProcessFile (
IN UINT16 SectionType,
IN EFI_FFS_FILE_HEADER *FfsFileHeader,
OUT VOID **Pe32Data,
IN EFI_PEI_HOB_POINTERS *OrigHob
)
/*++
Routine Description:
Arguments:
SectionType - The type of section in the FFS file to process.
FfsFileHeader - Pointer to the FFS file to process, looking for the
specified SectionType
Pe32Data - returned pointer to the start of the PE32 image found
in the FFS file.
Returns:
EFI_SUCCESS - found the PE32 section in the FFS file
--*/
{
EFI_STATUS Status;
VOID *SectionData;
DECOMPRESS_LIBRARY *DecompressLibrary;
UINT8 *DstBuffer;
UINT8 *ScratchBuffer;
UINT32 DstBufferSize;
UINT32 ScratchBufferSize;
EFI_COMMON_SECTION_HEADER *CmpSection;
UINTN CmpSectionLength;
UINTN OccupiedCmpSectionLength;
VOID *CmpFileData;
UINTN CmpFileSize;
EFI_COMMON_SECTION_HEADER *Section;
UINTN SectionLength;
UINTN OccupiedSectionLength;
UINT64 FileSize;
UINT32 AuthenticationStatus;
EFI_PEI_SECTION_EXTRACTION_PPI *SectionExtract;
UINT32 BufferSize;
UINT8 *Buffer;
EFI_PEI_SECURITY_PPI *Security;
BOOLEAN StartCrisisRecovery;
EFI_GUID TempGuid;
EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
EFI_COMPRESSION_SECTION *CompressionSection;
//
// Initialize local variables.
//
DecompressLibrary = NULL;
DstBuffer = NULL;
DstBufferSize = 0;
Status = PeiServicesFfsFindSectionData (
EFI_SECTION_COMPRESSION,
FfsFileHeader,
&SectionData
);
//
// First process the compression section
//
if (!EFI_ERROR (Status)) {
//
// Yes, there is a compression section, so extract the contents
// Decompress the image here
//
Section = (EFI_COMMON_SECTION_HEADER *) (UINTN) (VOID *) ((UINT8 *) (FfsFileHeader) + (UINTN) sizeof (EFI_FFS_FILE_HEADER));
do {
SectionLength = *(UINT32 *) (Section->Size) & 0x00ffffff;
OccupiedSectionLength = GET_OCCUPIED_SIZE (SectionLength, 4);
//
// Was the DXE Core file encapsulated in a GUID'd section?
//
if (Section->Type == EFI_SECTION_GUID_DEFINED) {
//
// This following code constitutes the addition of the security model
// to the DXE IPL.
//
//
// Set a default authenticatino state
//
AuthenticationStatus = 0;
Status = PeiServicesLocatePpi (
&gEfiPeiSectionExtractionPpiGuid,
0,
NULL,
(VOID **)&SectionExtract
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Verify Authentication State
//
CopyMem (&TempGuid, Section + 1, sizeof (EFI_GUID));
Status = SectionExtract->PeiGetSection (
GetPeiServicesTablePointer(),
SectionExtract,
(EFI_SECTION_TYPE *) &SectionType,
&TempGuid,
0,
(VOID **) &Buffer,
&BufferSize,
&AuthenticationStatus
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// If not ask the Security PPI, if exists, for disposition
//
//
Status = PeiServicesLocatePpi (
&gEfiPeiSecurityPpiGuid,
0,
NULL,
(VOID **)&Security
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = Security->AuthenticationState (
GetPeiServicesTablePointer(),
(struct _EFI_PEI_SECURITY_PPI *) Security,
AuthenticationStatus,
FfsFileHeader,
&StartCrisisRecovery
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// If there is a security violation, report to caller and have
// the upper-level logic possible engender a crisis recovery
//
if (StartCrisisRecovery) {
return EFI_SECURITY_VIOLATION;
}
}
if (Section->Type == EFI_SECTION_PE32) {
//
// This is what we want
//
*Pe32Data = (VOID *) (Section + 1);
return EFI_SUCCESS;
} else if (Section->Type == EFI_SECTION_COMPRESSION) {
//
// This is a compression set, expand it
//
CompressionSection = (EFI_COMPRESSION_SECTION *) Section;
switch (CompressionSection->CompressionType) {
case EFI_STANDARD_COMPRESSION:
//
// Load EFI standard compression.
//
if (FeaturePcdGet (PcdDxeIplSupportTianoDecompress)) {
DecompressLibrary = &gEfiDecompress;
} else {
ASSERT (FALSE);
return EFI_NOT_FOUND;
}
break;
// porting note the original branch for customized compress is removed, it should be change to use GUID compress
case EFI_NOT_COMPRESSED:
//
// Allocate destination buffer
//
DstBufferSize = CompressionSection->UncompressedLength;
DstBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize));
if (DstBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// stream is not actually compressed, just encapsulated. So just copy it.
//
CopyMem (DstBuffer, CompressionSection + 1, DstBufferSize);
break;
default:
//
// Don't support other unknown compression type.
//
ASSERT_EFI_ERROR (Status);
return EFI_NOT_FOUND;
}
if (CompressionSection->CompressionType != EFI_NOT_COMPRESSED) {
//
// For compressed data, decompress them to dstbuffer.
//
Status = DecompressLibrary->GetInfo (
(UINT8 *) ((EFI_COMPRESSION_SECTION *) Section + 1),
(UINT32) SectionLength - sizeof (EFI_COMPRESSION_SECTION),
&DstBufferSize,
&ScratchBufferSize
);
if (EFI_ERROR (Status)) {
//
// GetInfo failed
//
DEBUG ((EFI_D_ERROR, "Decompress GetInfo Failed - %r\n", Status));
return EFI_NOT_FOUND;
}
//
// Allocate scratch buffer
//
ScratchBuffer = AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));
if (ScratchBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Allocate destination buffer
//
DstBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize));
if (DstBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Call decompress function
//
Status = DecompressLibrary->Decompress (
(CHAR8 *) ((EFI_COMPRESSION_SECTION *) Section + 1),
DstBuffer,
ScratchBuffer
);
if (EFI_ERROR (Status)) {
//
// Decompress failed
//
DEBUG ((EFI_D_ERROR, "Decompress Failed - %r\n", Status));
return EFI_NOT_FOUND;
}
}
//
// Decompress successfully.
// Loop the decompressed data searching for expected section.
//
CmpSection = (EFI_COMMON_SECTION_HEADER *) DstBuffer;
CmpFileData = (VOID *) DstBuffer;
CmpFileSize = DstBufferSize;
do {
CmpSectionLength = *(UINT32 *) (CmpSection->Size) & 0x00ffffff;
if (CmpSection->Type == SectionType) {
//
// This is what we want
//
if (SectionType == EFI_SECTION_PE32) {
*Pe32Data = (VOID *) (CmpSection + 1);
return EFI_SUCCESS;
} else if (SectionType == EFI_SECTION_FIRMWARE_VOLUME_IMAGE) {
//
// Firmware Volume Image in this Section
// Skip the section header to get FvHeader
//
FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (CmpSection + 1);
if (FvHeader->Signature == EFI_FVH_SIGNATURE) {
//
// Because FvLength in FvHeader is UINT64 type,
// so FvHeader must meed at least 8 bytes alignment.
// If current FvImage base address doesn't meet its alignment,
// we need to reload this FvImage to another correct memory address.
//
if (((UINTN) FvHeader % sizeof (UINT64)) != 0) {
DstBuffer = AllocateAlignedPages (EFI_SIZE_TO_PAGES ((UINTN) CmpSectionLength - sizeof (EFI_COMMON_SECTION_HEADER)), sizeof (UINT64));
if (DstBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DstBuffer, FvHeader, (UINTN) CmpSectionLength - sizeof (EFI_COMMON_SECTION_HEADER));
FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) DstBuffer;
}
//
// Build new FvHob for new decompressed Fv image.
//
BuildFvHob ((EFI_PHYSICAL_ADDRESS) (UINTN) FvHeader, FvHeader->FvLength);
//
// Set the original FvHob to unused.
//
if (OrigHob != NULL) {
OrigHob->Header->HobType = EFI_HOB_TYPE_UNUSED;
}
//
// return found FvImage data.
//
*Pe32Data = (VOID *) FvHeader;
return EFI_SUCCESS;
}
}
}
OccupiedCmpSectionLength = GET_OCCUPIED_SIZE (CmpSectionLength, 4);
CmpSection = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) CmpSection + OccupiedCmpSectionLength);
} while (CmpSection->Type != 0 && (UINTN) ((UINT8 *) CmpSection - (UINT8 *) CmpFileData) < CmpFileSize);
}
//
// End of the decompression activity
//
Section = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) Section + OccupiedSectionLength);
FileSize = FfsFileHeader->Size[0] & 0xFF;
FileSize += (FfsFileHeader->Size[1] << 8) & 0xFF00;
FileSize += (FfsFileHeader->Size[2] << 16) & 0xFF0000;
FileSize &= 0x00FFFFFF;
} while (Section->Type != 0 && (UINTN) ((UINT8 *) Section - (UINT8 *) FfsFileHeader) < FileSize);
//
// search all sections (compression and non compression) in this FFS, don't
// find expected section.
//
return EFI_NOT_FOUND;
} else {
//
// For those FFS that doesn't contain compression section, directly search
// PE or TE section in this FFS.
//
Status = PeiServicesFfsFindSectionData (
EFI_SECTION_PE32,
FfsFileHeader,
&SectionData
);
if (EFI_ERROR (Status)) {
Status = PeiServicesFfsFindSectionData (
EFI_SECTION_TE,
FfsFileHeader,
&SectionData
);
if (EFI_ERROR (Status)) {
return Status;
}
}
}
*Pe32Data = SectionData;
return EFI_SUCCESS;
}

136
MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c Normal file
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@@ -0,0 +1,136 @@
/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
DxeLoadFunc.c
Abstract:
Ia32-specifc functionality for DxeLoad.
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
#include "VirtualMemory.h"
//
// Global Descriptor Table (GDT)
//
GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT gGdtEntries [] = {
/* selector { Global Segment Descriptor } */
/* 0x00 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //null descriptor
/* 0x08 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear data segment descriptor
/* 0x10 */ {{0xffff, 0, 0, 0xf, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear code segment descriptor
/* 0x18 */ {{0xffff, 0, 0, 0x3, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
/* 0x20 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system code segment descriptor
/* 0x28 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
/* 0x30 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
/* 0x38 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 1, 0, 1, 0}}, //system code segment descriptor
/* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
};
//
// IA32 Gdt register
//
GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR gGdt = {
sizeof (gGdtEntries) - 1,
(UINTN) gGdtEntries
};
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList,
IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS BaseOfStack;
EFI_PHYSICAL_ADDRESS TopOfStack;
UINTN PageTables;
Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);
ASSERT_EFI_ERROR (Status);
if (FeaturePcdGet(PcdDxeIplSwitchToLongMode)) {
//
// Compute the top of the stack we were allocated, which is used to load X64 dxe core.
// Pre-allocate a 32 bytes which confroms to x64 calling convention.
//
// The first four parameters to a function are passed in rcx, rdx, r8 and r9.
// Any further parameters are pushed on the stack. Furthermore, space (4 * 8bytes) for the
// register parameters is reserved on the stack, in case the called function
// wants to spill them; this is important if the function is variadic.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - 32;
//
// X64 Calling Conventions requires that the stack must be aligned to 16 bytes
//
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
//
// Load the GDT of Go64. Since the GDT of 32-bit Tiano locates in the BS_DATA
// memory, it may be corrupted when copying FV to high-end memory
//
AsmWriteGdtr (&gGdt);
//
// Create page table and save PageMapLevel4 to CR3
//
PageTables = CreateIdentityMappingPageTables ();
//
// End of PEI phase singal
//
Status = PeiServicesInstallPpi (EndOfPeiSignal);
ASSERT_EFI_ERROR (Status);
AsmWriteCr3 (PageTables);
//
// Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.
// Call x64 drivers passing in single argument, a pointer to the HOBs.
//
AsmEnablePaging64 (
SYS_CODE64_SEL,
DxeCoreEntryPoint,
(EFI_PHYSICAL_ADDRESS)(UINTN)(HobList.Raw),
0,
TopOfStack
);
} else {
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT;
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
//
// End of PEI phase singal
//
Status = PeiServicesInstallPpi (EndOfPeiSignal);
ASSERT_EFI_ERROR (Status);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
(VOID *) (UINTN) TopOfStack
);
}
}

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
ImageRead.c
Abstract:
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
EFI_STATUS
EFIAPI
PeiImageRead (
IN VOID *FileHandle,
IN UINTN FileOffset,
IN OUT UINTN *ReadSize,
OUT VOID *Buffer
)
/*++
Routine Description:
Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file
Arguments:
FileHandle - The handle to the PE/COFF file
FileOffset - The offset, in bytes, into the file to read
ReadSize - The number of bytes to read from the file starting at FileOffset
Buffer - A pointer to the buffer to read the data into.
Returns:
EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset
--*/
{
UINT8 *Destination32;
UINT8 *Source32;
UINTN Length;
Destination32 = Buffer;
Source32 = (UINT8 *) ((UINTN) FileHandle + FileOffset);
//
// This function assumes 32-bit alignment to increase performance
//
// ASSERT (ALIGN_POINTER (Destination32, sizeof (UINT32)) == Destination32);
// ASSERT (ALIGN_POINTER (Source32, sizeof (UINT32)) == Source32);
Length = *ReadSize;
while (Length--) {
*(Destination32++) = *(Source32++);
}
return EFI_SUCCESS;
}
EFI_STATUS
GetImageReadFunction (
IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
/*++
Routine Description:
Support routine to return the PE32 Image Reader.
If the PeiImageRead() function is less than a page
in legnth. If the function is more than a page the DXE IPL will crash!!!!
Arguments:
ImageContext - The context of the image being loaded
Returns:
EFI_SUCCESS - If Image function location is found
--*/
{
VOID *MemoryBuffer;
if (gInMemory) {
ImageContext->ImageRead = PeiImageRead;
return EFI_SUCCESS;
}
//
// BugBug; This code assumes PeiImageRead() is less than a page in size!
// Allocate a page so we can shaddow the read function from FLASH into
// memory to increase performance.
//
MemoryBuffer = AllocateCopyPool (0x400, (VOID *)(UINTN) PeiImageRead);
ASSERT (MemoryBuffer != NULL);
ImageContext->ImageRead = (PE_COFF_LOADER_READ_FILE) (UINTN) MemoryBuffer;
return EFI_SUCCESS;
}

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
VirtualMemory.c
Abstract:
x64 Virtual Memory Management Services in the form of an IA-32 driver.
Used to establish a 1:1 Virtual to Physical Mapping that is required to
enter Long Mode (x64 64-bit mode).
While we make a 1:1 mapping (identity mapping) for all physical pages
we still need to use the MTRR's to ensure that the cachability attirbutes
for all memory regions is correct.
The basic idea is to use 2MB page table entries where ever possible. If
more granularity of cachability is required then 4K page tables are used.
References:
1) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 1:Basic Architecture, Intel
2) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 2:Instruction Set Reference, Intel
3) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 3:System Programmer's Guide, Intel
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "VirtualMemory.h"
UINTN
CreateIdentityMappingPageTables (
VOID
)
/*++
Routine Description:
Allocates and fills in the Page Directory and Page Table Entries to
establish a 1:1 Virtual to Physical mapping.
Arguments:
NumberOfProcessorPhysicalAddressBits - Number of processor address bits to use.
Limits the number of page table entries
to the physical address space.
Returns:
EFI_SUCCESS The 1:1 Virtual to Physical identity mapping was created
--*/
{
UINT8 PhysicalAddressBits;
EFI_PHYSICAL_ADDRESS PageAddress;
UINTN IndexOfPml4Entries;
UINTN IndexOfPdpEntries;
UINTN IndexOfPageDirectoryEntries;
UINTN NumberOfPml4EntriesNeeded;
UINTN NumberOfPdpEntriesNeeded;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel4Entry;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;
PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;
PAGE_TABLE_ENTRY *PageDirectoryEntry;
UINTN TotalPagesNum;
UINTN BigPageAddress;
VOID *Hob;
//
// Get physical address bits supported from CPU HOB.
//
PhysicalAddressBits = 36;
Hob = GetFirstHob (EFI_HOB_TYPE_CPU);
if (Hob != NULL) {
PhysicalAddressBits = ((EFI_HOB_CPU *) Hob)->SizeOfMemorySpace;
}
//
// Calculate the table entries needed.
//
if (PhysicalAddressBits <= 39 ) {
NumberOfPml4EntriesNeeded = 1;
NumberOfPdpEntriesNeeded = 1 << (PhysicalAddressBits - 30);
} else {
NumberOfPml4EntriesNeeded = 1 << (PhysicalAddressBits - 39);
NumberOfPdpEntriesNeeded = 512;
}
//
// Pre-allocate big pages to avoid later allocations.
//
TotalPagesNum = (NumberOfPdpEntriesNeeded + 1) * NumberOfPml4EntriesNeeded + 1;
BigPageAddress = (UINTN) AllocatePages (TotalPagesNum);
ASSERT (BigPageAddress != 0);
//
// By architecture only one PageMapLevel4 exists - so lets allocate storage for it.
//
PageMap = (VOID *) BigPageAddress;
BigPageAddress += EFI_PAGE_SIZE;
PageMapLevel4Entry = PageMap;
PageAddress = 0;
for (IndexOfPml4Entries = 0; IndexOfPml4Entries < NumberOfPml4EntriesNeeded; IndexOfPml4Entries++, PageMapLevel4Entry++) {
//
// Each PML4 entry points to a page of Page Directory Pointer entires.
// So lets allocate space for them and fill them in in the IndexOfPdpEntries loop.
//
PageDirectoryPointerEntry = (VOID *) BigPageAddress;
BigPageAddress += EFI_PAGE_SIZE;
//
// Make a PML4 Entry
//
PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry;
PageMapLevel4Entry->Bits.ReadWrite = 1;
PageMapLevel4Entry->Bits.Present = 1;
for (IndexOfPdpEntries = 0; IndexOfPdpEntries < NumberOfPdpEntriesNeeded; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {
//
// Each Directory Pointer entries points to a page of Page Directory entires.
// So allocate space for them and fill them in in the IndexOfPageDirectoryEntries loop.
//
PageDirectoryEntry = (VOID *) BigPageAddress;
BigPageAddress += EFI_PAGE_SIZE;
//
// Fill in a Page Directory Pointer Entries
//
PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry;
PageDirectoryPointerEntry->Bits.ReadWrite = 1;
PageDirectoryPointerEntry->Bits.Present = 1;
for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectoryEntry++, PageAddress += 0x200000) {
//
// Fill in the Page Directory entries
//
PageDirectoryEntry->Uint64 = (UINT64)PageAddress;
PageDirectoryEntry->Bits.ReadWrite = 1;
PageDirectoryEntry->Bits.Present = 1;
PageDirectoryEntry->Bits.MustBe1 = 1;
}
}
}
//
// For the PML4 entries we are not using fill in a null entry.
// For now we just copy the first entry.
//
for (; IndexOfPml4Entries < 512; IndexOfPml4Entries++, PageMapLevel4Entry++) {
CopyMem (
PageMapLevel4Entry,
PageMap,
sizeof (PAGE_MAP_AND_DIRECTORY_POINTER)
);
}
return (UINTN)PageMap; // FIXME
}

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
VirtualMemory.h
Abstract:
x64 Long Mode Virtual Memory Management Definitions
References:
1) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 1:Basic Architecture, Intel
2) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 2:Instruction Set Reference, Intel
3) IA-32 Intel(R) Atchitecture Software Developer's Manual Volume 3:System Programmer's Guide, Intel
4) AMD64 Architecture Programmer's Manual Volume 2: System Programming
--*/
#ifndef _VIRTUAL_MEMORY_H_
#define _VIRTUAL_MEMORY_H_
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#define SYS_CODE64_SEL 0x38
#pragma pack(1)
typedef union {
struct {
UINT32 LimitLow : 16;
UINT32 BaseLow : 16;
UINT32 BaseMid : 8;
UINT32 Type : 4;
UINT32 System : 1;
UINT32 Dpl : 2;
UINT32 Present : 1;
UINT32 LimitHigh : 4;
UINT32 Software : 1;
UINT32 Reserved : 1;
UINT32 DefaultSize : 1;
UINT32 Granularity : 1;
UINT32 BaseHigh : 8;
} Bits;
UINT64 Uint64;
} IA32_GDT;
//
// Page-Map Level-4 Offset (PML4) and
// Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB
//
typedef union {
struct {
UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
UINT64 Reserved:1; // Reserved
UINT64 MustBeZero:2; // Must Be Zero
UINT64 Available:3; // Available for use by system software
UINT64 PageTableBaseAddress:40; // Page Table Base Address
UINT64 AvabilableHigh:11; // Available for use by system software
UINT64 Nx:1; // No Execute bit
} Bits;
UINT64 Uint64;
} PAGE_MAP_AND_DIRECTORY_POINTER;
//
// Page Table Entry 2MB
//
typedef union {
struct {
UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page
UINT64 MustBe1:1; // Must be 1
UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write
UINT64 Available:3; // Available for use by system software
UINT64 PAT:1; //
UINT64 MustBeZero:8; // Must be zero;
UINT64 PageTableBaseAddress:31; // Page Table Base Address
UINT64 AvabilableHigh:11; // Available for use by system software
UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution
} Bits;
UINT64 Uint64;
} PAGE_TABLE_ENTRY;
#pragma pack()
UINTN
CreateIdentityMappingPageTables (
VOID
)
;
#endif

77
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/*++
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. 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:
IpfDxeLoad.c
Abstract:
Ipf-specifc functionality for DxeLoad.
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList,
IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal
)
{
VOID *BaseOfStack;
VOID *TopOfStack;
VOID *BspStore;
EFI_STATUS Status;
//
// Allocate 128KB for the Stack
//
BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != NULL);
//
// Allocate 16KB for the BspStore
//
BspStore = AllocatePages (EFI_SIZE_TO_PAGES (BSP_STORE_SIZE));
ASSERT (BspStore != NULL);
//
// Build BspStoreHob
//
BuildBspStoreHob ((EFI_PHYSICAL_ADDRESS) (UINTN) BspStore, BSP_STORE_SIZE, EfiBootServicesData);
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
//
// End of PEI phase singal
//
Status = PeiServicesInstallPpi (EndOfPeiSignal);
ASSERT_EFI_ERROR (Status);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
TopOfStack,
BspStore
);
}

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
ImageRead.c
Abstract:
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
EFI_STATUS
PeiImageRead (
IN VOID *FileHandle,
IN UINTN FileOffset,
IN OUT UINTN *ReadSize,
OUT VOID *Buffer
)
/*++
Routine Description:
Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file
Arguments:
FileHandle - The handle to the PE/COFF file
FileOffset - The offset, in bytes, into the file to read
ReadSize - The number of bytes to read from the file starting at FileOffset
Buffer - A pointer to the buffer to read the data into.
Returns:
EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset
--*/
{
CHAR8 *Destination8;
CHAR8 *Source8;
volatile UINTN Length;
Destination8 = Buffer;
Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset);
Length = *ReadSize;
while (Length--) {
*(Destination8++) = *(Source8++);
}
return EFI_SUCCESS;
}
EFI_STATUS
GetImageReadFunction (
IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
{
ImageContext->ImageRead = PeiImageRead;
return EFI_SUCCESS;
}

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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:
DxeLoadFunc.c
Abstract:
Ia32-specifc functionality for DxeLoad.
--*/
//
// Include common header file for this module.
//
#include "CommonHeader.h"
#include "DxeIpl.h"
VOID
HandOffToDxeCore (
IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
IN EFI_PEI_HOB_POINTERS HobList,
IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal
)
{
VOID *BaseOfStack;
VOID *TopOfStack;
EFI_STATUS Status;
//
// Allocate 128KB for the Stack
//
BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != NULL);
//
// Compute the top of the stack we were allocated. Pre-allocate a UINTN
// for safety.
//
TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
//
// End of PEI phase singal
//
Status = PeiServicesInstallPpi (EndOfPeiSignal);
ASSERT_EFI_ERROR (Status);
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
NULL,
TopOfStack
);
}