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audk
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Clean up SEC implementation for Ovmf. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10770 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney 2010-08-03 07:41:54 +00:00
parent b43619d0cd
commit 42a83e80f3
14 changed files with 702 additions and 939 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
OvmfPkg/OvmfPkgIa32.dsc
View File

@ -57,7 +57,6 @@
CpuLib|MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
PeCoffLib|MdePkg/Library/BasePeCoffLib/BasePeCoffLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
CacheMaintenanceLib|MdePkg/Library/BaseCacheMaintenanceLib/BaseCacheMaintenanceLib.inf
UefiDecompressLib|MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
UefiHiiServicesLib|MdeModulePkg/Library/UefiHiiServicesLib/UefiHiiServicesLib.inf
@ -82,17 +81,23 @@
FileHandleLib|ShellPkg/Library/BaseFileHandleLib/BaseFileHandleLib.inf
UefiCpuLib|UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
SecurityManagementLib|MdeModulePkg/Library/DxeSecurityManagementLib/DxeSecurityManagementLib.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
NetLib|MdeModulePkg/Library/DxeNetLib/DxeNetLib.inf
IpIoLib|MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.inf
UdpIoLib|MdeModulePkg/Library/DxeUdpIoLib/DxeUdpIoLib.inf
DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
ResetSystemLib|PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf
[LibraryClasses.common.SEC]
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
HobLib|MdePkg/Library/PeiHobLib/PeiHobLib.inf
PeiServicesLib|MdePkg/Library/PeiServicesLib/PeiServicesLib.inf
PeiServicesTablePointerLib|MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointerLibIdt.inf
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
[LibraryClasses.common.PEI_CORE]
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf
HobLib|MdePkg/Library/PeiHobLib/PeiHobLib.inf

9
OvmfPkg/OvmfPkgIa32X64.dsc
View File

@ -57,7 +57,6 @@
CpuLib|MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
PeCoffLib|MdePkg/Library/BasePeCoffLib/BasePeCoffLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
CacheMaintenanceLib|MdePkg/Library/BaseCacheMaintenanceLib/BaseCacheMaintenanceLib.inf
UefiDecompressLib|MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
UefiHiiServicesLib|MdeModulePkg/Library/UefiHiiServicesLib/UefiHiiServicesLib.inf
@ -82,16 +81,22 @@
FileHandleLib|ShellPkg/Library/BaseFileHandleLib/BaseFileHandleLib.inf
UefiCpuLib|UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
SecurityManagementLib|MdeModulePkg/Library/DxeSecurityManagementLib/DxeSecurityManagementLib.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
NetLib|MdeModulePkg/Library/DxeNetLib/DxeNetLib.inf
IpIoLib|MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.inf
UdpIoLib|MdeModulePkg/Library/DxeUdpIoLib/DxeUdpIoLib.inf
DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
ResetSystemLib|PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf
[LibraryClasses.common.SEC]
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
HobLib|MdePkg/Library/PeiHobLib/PeiHobLib.inf
PeiServicesLib|MdePkg/Library/PeiServicesLib/PeiServicesLib.inf
PeiServicesTablePointerLib|MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointerLibIdt.inf
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
[LibraryClasses.common.PEI_CORE]
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf

9
OvmfPkg/OvmfPkgX64.dsc
View File

@ -57,7 +57,6 @@
CpuLib|MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
PerformanceLib|MdePkg/Library/BasePerformanceLibNull/BasePerformanceLibNull.inf
PeCoffLib|MdePkg/Library/BasePeCoffLib/BasePeCoffLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
CacheMaintenanceLib|MdePkg/Library/BaseCacheMaintenanceLib/BaseCacheMaintenanceLib.inf
UefiDecompressLib|MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
UefiHiiServicesLib|MdeModulePkg/Library/UefiHiiServicesLib/UefiHiiServicesLib.inf
@ -82,16 +81,22 @@
FileHandleLib|ShellPkg/Library/BaseFileHandleLib/BaseFileHandleLib.inf
UefiCpuLib|UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
SecurityManagementLib|MdeModulePkg/Library/DxeSecurityManagementLib/DxeSecurityManagementLib.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
NetLib|MdeModulePkg/Library/DxeNetLib/DxeNetLib.inf
IpIoLib|MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.inf
UdpIoLib|MdeModulePkg/Library/DxeUdpIoLib/DxeUdpIoLib.inf
DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
PeCoffExtraActionLib|MdePkg/Library/BasePeCoffExtraActionLibNull/BasePeCoffExtraActionLibNull.inf
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
ResetSystemLib|PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf
[LibraryClasses.common.SEC]
DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
ReportStatusCodeLib|MdeModulePkg/Library/PeiReportStatusCodeLib/PeiReportStatusCodeLib.inf
ExtractGuidedSectionLib|MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
HobLib|MdePkg/Library/PeiHobLib/PeiHobLib.inf
PeiServicesLib|MdePkg/Library/PeiServicesLib/PeiServicesLib.inf
PeiServicesTablePointerLib|MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointerLibIdt.inf
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
[LibraryClasses.common.PEI_CORE]
BaseMemoryLib|MdePkg/Library/BaseMemoryLibOptPei/BaseMemoryLibOptPei.inf

384
OvmfPkg/Sec/FindPeiCore.c
View File

@ -1,384 +0,0 @@
/** @file
Locate the entry point for the PEI Core
Copyright (c) 2008 - 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.
**/
#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/ExtractGuidedSectionLib.h>
#include <Library/PcdLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
#include "SecMain.h"
/**
Locates the main boot firmware volume.
@param[in,out] BootFv On input, the base of the BootFv
On output, the decompressed main firmware volume
@retval EFI_SUCCESS The main firmware volume was located and decompressed
@retval EFI_NOT_FOUND The main firmware volume was not found
**/
EFI_STATUS
FindMainFv (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **BootFv
)
{
EFI_FIRMWARE_VOLUME_HEADER *Fv;
UINTN Distance;
BOOLEAN Found;
ASSERT (((UINTN) *BootFv & EFI_PAGE_MASK) == 0);
Found = FALSE;
Fv = *BootFv;
Distance = (UINTN) (*BootFv)->FvLength;
do {
Fv = (EFI_FIRMWARE_VOLUME_HEADER*) ((UINT8*) Fv - EFI_PAGE_SIZE);
Distance += EFI_PAGE_SIZE;
if (Distance > SIZE_32MB) {
return EFI_NOT_FOUND;
}
if (Fv->Signature != EFI_FVH_SIGNATURE) {
continue;
}
if ((UINTN) Fv->FvLength > Distance) {
continue;
}
*BootFv = Fv;
return EFI_SUCCESS;
} while (TRUE);
}
/**
Locates a section within a series of sections
with the specified section type.
@param[in] Sections The sections to search
@param[in] SizeOfSections Total size of all sections
@param[in] SectionType The section type to locate
@param[out] FoundSection The FFS section if found
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
FindFfsSectionInSections (
IN VOID *Sections,
IN UINTN SizeOfSections,
IN EFI_SECTION_TYPE SectionType,
OUT EFI_COMMON_SECTION_HEADER **FoundSection
)
{
EFI_PHYSICAL_ADDRESS CurrentAddress;
UINT32 Size;
EFI_PHYSICAL_ADDRESS EndOfSections;
EFI_COMMON_SECTION_HEADER *Section;
EFI_PHYSICAL_ADDRESS EndOfSection;
//
// Loop through the FFS file sections within the PEI Core FFS file
//
EndOfSection = (EFI_PHYSICAL_ADDRESS)(UINTN) Sections;
EndOfSections = EndOfSection + SizeOfSections;
for (;;) {
if (EndOfSection == EndOfSections) {
break;
}
CurrentAddress = (EndOfSection + 3) & ~(3ULL);
if (CurrentAddress >= EndOfSections) {
return EFI_VOLUME_CORRUPTED;
}
Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress;
DEBUG ((EFI_D_INFO, "Section->Type: 0x%x\n", Section->Type));
Size = SECTION_SIZE (Section);
if (Size < sizeof (*Section)) {
return EFI_VOLUME_CORRUPTED;
}
EndOfSection = CurrentAddress + Size;
if (EndOfSection > EndOfSections) {
return EFI_VOLUME_CORRUPTED;
}
//
// Look for the requested section type
//
if (Section->Type == SectionType) {
*FoundSection = Section;
return EFI_SUCCESS;
}
DEBUG ((EFI_D_INFO, "Section->Type (0x%x) != SectionType (0x%x)\n", Section->Type, SectionType));
}
return EFI_NOT_FOUND;
}
/**
Locates a FFS file with the specified file type and a section
within that file with the specified section type.
@param[in] Fv The firmware volume to search
@param[in] FileType The file type to locate
@param[in] SectionType The section type to locate
@param[out] FoundSection The FFS section if found
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
FindFfsFileAndSection (
IN EFI_FIRMWARE_VOLUME_HEADER *Fv,
IN EFI_FV_FILETYPE FileType,
IN EFI_SECTION_TYPE SectionType,
OUT EFI_COMMON_SECTION_HEADER **FoundSection
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS CurrentAddress;
EFI_PHYSICAL_ADDRESS EndOfFirmwareVolume;
EFI_FFS_FILE_HEADER *File;
UINT32 Size;
EFI_PHYSICAL_ADDRESS EndOfFile;
if (Fv->Signature != EFI_FVH_SIGNATURE) {
DEBUG ((EFI_D_INFO, "FV at %p does not have FV header signature\n", Fv));
return EFI_VOLUME_CORRUPTED;
}
CurrentAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Fv;
EndOfFirmwareVolume = CurrentAddress + Fv->FvLength;
//
// Loop through the FFS files in the Boot Firmware Volume
//
for (EndOfFile = CurrentAddress + Fv->HeaderLength; ; ) {
CurrentAddress = (EndOfFile + 7) & ~(7ULL);
if (CurrentAddress > EndOfFirmwareVolume) {
return EFI_VOLUME_CORRUPTED;
}
File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress;
Size = *(UINT32*) File->Size & 0xffffff;
if (Size < (sizeof (*File) + sizeof (EFI_COMMON_SECTION_HEADER))) {
return EFI_VOLUME_CORRUPTED;
}
DEBUG ((EFI_D_INFO, "File->Type: 0x%x\n", File->Type));
EndOfFile = CurrentAddress + Size;
if (EndOfFile > EndOfFirmwareVolume) {
return EFI_VOLUME_CORRUPTED;
}
//
// Look for the request file type
//
if (File->Type != FileType) {
DEBUG ((EFI_D_INFO, "File->Type (0x%x) != FileType (0x%x)\n", File->Type, FileType));
continue;
}
Status = FindFfsSectionInSections (
(VOID*) (File + 1),
(UINTN) EndOfFile - (UINTN) (File + 1),
SectionType,
FoundSection
);
if (!EFI_ERROR (Status) || (Status == EFI_VOLUME_CORRUPTED)) {
return Status;
}
}
}
/**
Locates the compressed main firmware volume and decompresses it.
@param[in,out] Fv On input, the firmware volume to search
On output, the decompressed main FV
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
DecompressGuidedFv (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **Fv
)
{
EFI_STATUS Status;
EFI_GUID_DEFINED_SECTION *Section;
UINT32 OutputBufferSize;
UINT32 ScratchBufferSize;
UINT16 SectionAttribute;
UINT32 AuthenticationStatus;
VOID *OutputBuffer;
VOID *ScratchBuffer;
EFI_FIRMWARE_VOLUME_IMAGE_SECTION *NewFvSection;
EFI_FIRMWARE_VOLUME_HEADER *NewFv;
NewFvSection = (EFI_FIRMWARE_VOLUME_IMAGE_SECTION*) NULL;
Status = FindFfsFileAndSection (
*Fv,
EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE,
EFI_SECTION_GUID_DEFINED,
(EFI_COMMON_SECTION_HEADER**) &Section
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find GUID defined section\n"));
return Status;
}
Status = ExtractGuidedSectionGetInfo (
Section,
&OutputBufferSize,
&ScratchBufferSize,
&SectionAttribute
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to GetInfo for GUIDed section\n"));
return Status;
}
//PcdGet32 (PcdOvmfMemFvBase), PcdGet32 (PcdOvmfMemFvSize)
OutputBuffer = (VOID*) ((UINT8*)(UINTN) PcdGet32 (PcdOvmfMemFvBase) + SIZE_1MB);
ScratchBuffer = ALIGN_POINTER ((UINT8*) OutputBuffer + OutputBufferSize, SIZE_1MB);
Status = ExtractGuidedSectionDecode (
Section,
&OutputBuffer,
ScratchBuffer,
&AuthenticationStatus
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Error during GUID section decode\n"));
return Status;
}
Status = FindFfsSectionInSections (
OutputBuffer,
OutputBufferSize,
EFI_SECTION_FIRMWARE_VOLUME_IMAGE,
(EFI_COMMON_SECTION_HEADER**) &NewFvSection
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find FV image in extracted data\n"));
return Status;
}
NewFv = (EFI_FIRMWARE_VOLUME_HEADER*)(UINTN) PcdGet32 (PcdOvmfMemFvBase);
CopyMem (NewFv, (VOID*) (NewFvSection + 1), PcdGet32 (PcdOvmfMemFvSize));
if (NewFv->Signature != EFI_FVH_SIGNATURE) {
DEBUG ((EFI_D_ERROR, "Extracted FV at %p does not have FV header signature\n", NewFv));
CpuDeadLoop ();
return EFI_VOLUME_CORRUPTED;
}
*Fv = NewFv;
return EFI_SUCCESS;
}
/**
Locates the PEI Core entry point address
@param[in] Fv The firmware volume to search
@param[out] PeiCoreEntryPoint The entry point of the PEI Core image
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
FindPeiCoreEntryPointInFv (
IN EFI_FIRMWARE_VOLUME_HEADER *Fv,
OUT VOID **PeiCoreEntryPoint
)
{
EFI_STATUS Status;
EFI_COMMON_SECTION_HEADER *Section;
Status = FindFfsFileAndSection (
Fv,
EFI_FV_FILETYPE_PEI_CORE,
EFI_SECTION_PE32,
&Section
);
if (EFI_ERROR (Status)) {
Status = FindFfsFileAndSection (
Fv,
EFI_FV_FILETYPE_PEI_CORE,
EFI_SECTION_TE,
&Section
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find PEI Core image\n"));
return Status;
}
}
return PeCoffLoaderGetEntryPoint ((VOID*) (Section + 1), PeiCoreEntryPoint);
}
/**
Locates the PEI Core entry point address
@param[in,out] Fv The firmware volume to search
@param[out] PeiCoreEntryPoint The entry point of the PEI Core image
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
VOID
EFIAPI
FindPeiCoreEntryPoint (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **BootFv,
OUT VOID **PeiCoreEntryPoint
)
{
*PeiCoreEntryPoint = NULL;
FindMainFv (BootFv);
DecompressGuidedFv (BootFv);
FindPeiCoreEntryPointInFv (*BootFv, PeiCoreEntryPoint);
}

4
OvmfPkg/Sec/Ia32/SecEntry.S
View File

@ -17,7 +17,7 @@
#------------------------------------------------------------------------------
#include "SecMain.h"
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
@ -39,7 +39,7 @@ ASM_PFX(_ModuleEntryPoint):
# Load temporary stack top at very low memory. The C code
# can reload to a better address.
#
movl $INITIAL_TOP_OF_STACK, %eax
movl $BASE_512KB, %eax
movl %eax, %esp
nop

4
OvmfPkg/Sec/Ia32/SecEntry.asm
View File

@ -16,7 +16,7 @@
;*
;------------------------------------------------------------------------------
#include "SecMain.h"
#include <Base.h>
.686
.model flat,C
@ -41,7 +41,7 @@ _ModuleEntryPoint PROC PUBLIC
; Load temporary stack top at very low memory. The C code
; can reload to a better address.
;
mov eax, INITIAL_TOP_OF_STACK
mov eax, BASE_512KB
mov esp, eax
nop

93
OvmfPkg/Sec/Ia32/Stack.S
View File

@ -1,93 +0,0 @@
#------------------------------------------------------------------------------
#
# Copyright (c) 2008, 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:
#
# Stack.asm
#
# Abstract:
#
# Switch the stack from temporary memory to permenent memory.
#
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# VOID
# EFIAPI
# SecSwitchStack (
# UINT32 TemporaryMemoryBase,
# UINT32 PermenentMemoryBase
# );
#------------------------------------------------------------------------------
#include <ProcessorBind.h>
ASM_GLOBAL ASM_PFX(SecSwitchStack)
ASM_PFX(SecSwitchStack):
#
# Save three register: eax, ebx, ecx
#
push %eax
push %ebx
push %ecx
push %edx
#
# !!CAUTION!! this function address's is pushed into stack after
# migration of whole temporary memory, so need save it to permenent
# memory at first!
#
movl 20(%esp), %ebx # Save the first parameter
movl 24(%esp), %ecx # Save the second parameter
#
# Save this function's return address into permenent memory at first.
# Then, Fixup the esp point to permenent memory
#
movl %esp, %eax
subl %ebx, %eax
addl %ecx, %eax
movl (%esp), %edx # copy pushed register's value to permenent memory
movl %edx, (%eax)
movl 4(%esp), %edx
movl %edx, 4(%eax)
movl 8(%esp), %edx
movl %edx, 8(%eax)
movl 12(%esp), %edx
movl %edx, 12(%eax)
movl 16(%esp), %edx
movl %edx, 16(%eax)
movl %eax, %esp # From now, esp is pointed to permenent memory
#
# Fixup the ebp point to permenent memory
#
movl %ebp, %eax
subl %ebx, %eax
addl %ecx, %eax
movl %eax, %ebp # From now, ebp is pointed to permenent memory
#
# Fixup callee's ebp point for PeiDispatch
#
movl (%ebp), %eax
subl %ebx, %eax
addl %ecx, %eax
movl %eax, (%ebp) # From now, Temporary's PPI caller's stack is in permenent memory
pop %edx
pop %ecx
pop %ebx
pop %eax
ret

136
OvmfPkg/Sec/Ia32/SwitchStack.c
View File

@ -1,136 +0,0 @@
/** @file
Switch Stack functions.
Copyright (c) 2006 - 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.
**/
//
// Include common header file for this module.
//
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PeiServicesLib.h>
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
PeiSwitchStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *Context3, OPTIONAL
IN VOID *OldTopOfStack,
IN VOID *NewStack
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
ASSERT (EntryPoint != NULL);
ASSERT (NewStack != NULL);
//
// Stack should be aligned with CPU_STACK_ALIGNMENT
//
ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);
JumpBuffer.Eip = (UINTN)EntryPoint;
JumpBuffer.Esp = (UINTN)NewStack - sizeof (VOID*);
JumpBuffer.Esp -= sizeof (Context1) + sizeof (Context2) + sizeof(Context3);
((VOID**)JumpBuffer.Esp)[1] = Context1;
((VOID**)JumpBuffer.Esp)[2] = Context2;
((VOID**)JumpBuffer.Esp)[3] = Context3;
LongJump (&JumpBuffer, (UINTN)-1);
//
// InternalSwitchStack () will never return
//
ASSERT (FALSE);
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
SecSwitchStack (
IN UINTN TemporaryMemoryBase,
IN UINTN PermanentMemoryBase,
IN UINTN CopySize
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
UINTN SetJumpFlag;
ASSERT ((VOID*)TemporaryMemoryBase != NULL);
ASSERT ((VOID*)PermanentMemoryBase != NULL);
SetJumpFlag = SetJump (&JumpBuffer);
//
// The initial call to SetJump() must always return 0.
// Subsequent calls to LongJump() may cause a non-zero value to be returned by SetJump().
//
if (SetJumpFlag == 0) {
DEBUG ((EFI_D_ERROR, "SecSwitchStack+%d: Esp: 0x%xL\n", __LINE__, JumpBuffer.Esp));
JumpBuffer.Esp =
(INTN)JumpBuffer.Esp -
(INTN)TemporaryMemoryBase +
(INTN)PermanentMemoryBase;
MemoryFence ();
CopyMem((VOID*)PermanentMemoryBase, (VOID*)TemporaryMemoryBase, CopySize);
LongJump (&JumpBuffer, (UINTN)-1);
}
}

736
OvmfPkg/Sec/SecMain.c
View File

@ -14,16 +14,35 @@
**/
#include <PiPei.h>
#include <Library/PeimEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/PeiServicesLib.h>
#include <Ppi/TemporaryRamSupport.h>
#include <Library/PcdLib.h>
#include <Library/UefiCpuLib.h>
#include <Library/DebugAgentLib.h>
#include <Library/IoLib.h>
#include <Library/PeCoffLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
#include <Library/PeCoffExtraActionLib.h>
#include <Library/ExtractGuidedSectionLib.h>
#include "SecMain.h"
#include <Ppi/TemporaryRamSupport.h>
#define SEC_IDT_ENTRY_COUNT 34
typedef struct _SEC_IDT_TABLE {
EFI_PEI_SERVICES *PeiService;
IA32_IDT_GATE_DESCRIPTOR IdtTable[SEC_IDT_ENTRY_COUNT];
} SEC_IDT_TABLE;
VOID
EFIAPI
SecStartupPhase2 (
IN VOID *Context
);
EFI_STATUS
EFIAPI
@ -34,29 +53,529 @@ TemporaryRamMigration (
IN UINTN CopySize
);
STATIC TEMPORARY_RAM_SUPPORT_PPI mTempRamSupportPpi = {
(TEMPORARY_RAM_MIGRATION) TemporaryRamMigration
//
//
//
TEMPORARY_RAM_SUPPORT_PPI mTemporaryRamSupportPpi = {
TemporaryRamMigration
};
STATIC EFI_PEI_PPI_DESCRIPTOR mPrivateDispatchTable[] = {
EFI_PEI_PPI_DESCRIPTOR mPrivateDispatchTable[] = {
{
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiTemporaryRamSupportPpiGuid,
&mTempRamSupportPpi
&mTemporaryRamSupportPpi
},
};
//
// Template of an IDT entry pointing to 10:FFFFFFE4h.
//
IA32_IDT_GATE_DESCRIPTOR mIdtEntryTemplate = {
{ // Bits
0xffe4, // OffsetLow
0x10, // Selector
0x0, // Reserved_0
IA32_IDT_GATE_TYPE_INTERRUPT_32, // GateType
0xffff // OffsetHigh
}
};
VOID
InitializeIdtPtr (
IN VOID* IdtPtr
/**
Locates the main boot firmware volume.
@param[in,out] BootFv On input, the base of the BootFv
On output, the decompressed main firmware volume
@retval EFI_SUCCESS The main firmware volume was located and decompressed
@retval EFI_NOT_FOUND The main firmware volume was not found
**/
EFI_STATUS
FindMainFv (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **BootFv
)
{
IA32_DESCRIPTOR IdtDescriptor;
EFI_FIRMWARE_VOLUME_HEADER *Fv;
UINTN Distance;
BOOLEAN Found;
IdtDescriptor.Base = (UINTN)IdtPtr;
IdtDescriptor.Limit = (UINT16) 0;
AsmWriteIdtr (&IdtDescriptor);
ASSERT (((UINTN) *BootFv & EFI_PAGE_MASK) == 0);
Found = FALSE;
Fv = *BootFv;
Distance = (UINTN) (*BootFv)->FvLength;
do {
Fv = (EFI_FIRMWARE_VOLUME_HEADER*) ((UINT8*) Fv - EFI_PAGE_SIZE);
Distance += EFI_PAGE_SIZE;
if (Distance > SIZE_32MB) {
return EFI_NOT_FOUND;
}
if (Fv->Signature != EFI_FVH_SIGNATURE) {
continue;
}
if ((UINTN) Fv->FvLength > Distance) {
continue;
}
*BootFv = Fv;
return EFI_SUCCESS;
} while (TRUE);
}
/**
Locates a section within a series of sections
with the specified section type.
@param[in] Sections The sections to search
@param[in] SizeOfSections Total size of all sections
@param[in] SectionType The section type to locate
@param[out] FoundSection The FFS section if found
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
FindFfsSectionInSections (
IN VOID *Sections,
IN UINTN SizeOfSections,
IN EFI_SECTION_TYPE SectionType,
OUT EFI_COMMON_SECTION_HEADER **FoundSection
)
{
EFI_PHYSICAL_ADDRESS CurrentAddress;
UINT32 Size;
EFI_PHYSICAL_ADDRESS EndOfSections;
EFI_COMMON_SECTION_HEADER *Section;
EFI_PHYSICAL_ADDRESS EndOfSection;
//
// Loop through the FFS file sections within the PEI Core FFS file
//
EndOfSection = (EFI_PHYSICAL_ADDRESS)(UINTN) Sections;
EndOfSections = EndOfSection + SizeOfSections;
for (;;) {
if (EndOfSection == EndOfSections) {
break;
}
CurrentAddress = (EndOfSection + 3) & ~(3ULL);
if (CurrentAddress >= EndOfSections) {
return EFI_VOLUME_CORRUPTED;
}
Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress;
DEBUG ((EFI_D_INFO, "Section->Type: 0x%x\n", Section->Type));
Size = SECTION_SIZE (Section);
if (Size < sizeof (*Section)) {
return EFI_VOLUME_CORRUPTED;
}
EndOfSection = CurrentAddress + Size;
if (EndOfSection > EndOfSections) {
return EFI_VOLUME_CORRUPTED;
}
//
// Look for the requested section type
//
if (Section->Type == SectionType) {
*FoundSection = Section;
return EFI_SUCCESS;
}
DEBUG ((EFI_D_INFO, "Section->Type (0x%x) != SectionType (0x%x)\n", Section->Type, SectionType));
}
return EFI_NOT_FOUND;
}
/**
Locates a FFS file with the specified file type and a section
within that file with the specified section type.
@param[in] Fv The firmware volume to search
@param[in] FileType The file type to locate
@param[in] SectionType The section type to locate
@param[out] FoundSection The FFS section if found
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
FindFfsFileAndSection (
IN EFI_FIRMWARE_VOLUME_HEADER *Fv,
IN EFI_FV_FILETYPE FileType,
IN EFI_SECTION_TYPE SectionType,
OUT EFI_COMMON_SECTION_HEADER **FoundSection
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS CurrentAddress;
EFI_PHYSICAL_ADDRESS EndOfFirmwareVolume;
EFI_FFS_FILE_HEADER *File;
UINT32 Size;
EFI_PHYSICAL_ADDRESS EndOfFile;
if (Fv->Signature != EFI_FVH_SIGNATURE) {
DEBUG ((EFI_D_INFO, "FV at %p does not have FV header signature\n", Fv));
return EFI_VOLUME_CORRUPTED;
}
CurrentAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Fv;
EndOfFirmwareVolume = CurrentAddress + Fv->FvLength;
//
// Loop through the FFS files in the Boot Firmware Volume
//
for (EndOfFile = CurrentAddress + Fv->HeaderLength; ; ) {
CurrentAddress = (EndOfFile + 7) & ~(7ULL);
if (CurrentAddress > EndOfFirmwareVolume) {
return EFI_VOLUME_CORRUPTED;
}
File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress;
Size = *(UINT32*) File->Size & 0xffffff;
if (Size < (sizeof (*File) + sizeof (EFI_COMMON_SECTION_HEADER))) {
return EFI_VOLUME_CORRUPTED;
}
DEBUG ((EFI_D_INFO, "File->Type: 0x%x\n", File->Type));
EndOfFile = CurrentAddress + Size;
if (EndOfFile > EndOfFirmwareVolume) {
return EFI_VOLUME_CORRUPTED;
}
//
// Look for the request file type
//
if (File->Type != FileType) {
DEBUG ((EFI_D_INFO, "File->Type (0x%x) != FileType (0x%x)\n", File->Type, FileType));
continue;
}
Status = FindFfsSectionInSections (
(VOID*) (File + 1),
(UINTN) EndOfFile - (UINTN) (File + 1),
SectionType,
FoundSection
);
if (!EFI_ERROR (Status) || (Status == EFI_VOLUME_CORRUPTED)) {
return Status;
}
}
}
/**
Locates the compressed main firmware volume and decompresses it.
@param[in,out] Fv On input, the firmware volume to search
On output, the decompressed main FV
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
DecompressGuidedFv (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **Fv
)
{
EFI_STATUS Status;
EFI_GUID_DEFINED_SECTION *Section;
UINT32 OutputBufferSize;
UINT32 ScratchBufferSize;
UINT16 SectionAttribute;
UINT32 AuthenticationStatus;
VOID *OutputBuffer;
VOID *ScratchBuffer;
EFI_FIRMWARE_VOLUME_IMAGE_SECTION *NewFvSection;
EFI_FIRMWARE_VOLUME_HEADER *NewFv;
NewFvSection = (EFI_FIRMWARE_VOLUME_IMAGE_SECTION*) NULL;
Status = FindFfsFileAndSection (
*Fv,
EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE,
EFI_SECTION_GUID_DEFINED,
(EFI_COMMON_SECTION_HEADER**) &Section
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find GUID defined section\n"));
return Status;
}
Status = ExtractGuidedSectionGetInfo (
Section,
&OutputBufferSize,
&ScratchBufferSize,
&SectionAttribute
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to GetInfo for GUIDed section\n"));
return Status;
}
//PcdGet32 (PcdOvmfMemFvBase), PcdGet32 (PcdOvmfMemFvSize)
OutputBuffer = (VOID*) ((UINT8*)(UINTN) PcdGet32 (PcdOvmfMemFvBase) + SIZE_1MB);
ScratchBuffer = ALIGN_POINTER ((UINT8*) OutputBuffer + OutputBufferSize, SIZE_1MB);
Status = ExtractGuidedSectionDecode (
Section,
&OutputBuffer,
ScratchBuffer,
&AuthenticationStatus
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Error during GUID section decode\n"));
return Status;
}
Status = FindFfsSectionInSections (
OutputBuffer,
OutputBufferSize,
EFI_SECTION_FIRMWARE_VOLUME_IMAGE,
(EFI_COMMON_SECTION_HEADER**) &NewFvSection
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find FV image in extracted data\n"));
return Status;
}
NewFv = (EFI_FIRMWARE_VOLUME_HEADER*)(UINTN) PcdGet32 (PcdOvmfMemFvBase);
CopyMem (NewFv, (VOID*) (NewFvSection + 1), PcdGet32 (PcdOvmfMemFvSize));
if (NewFv->Signature != EFI_FVH_SIGNATURE) {
DEBUG ((EFI_D_ERROR, "Extracted FV at %p does not have FV header signature\n", NewFv));
CpuDeadLoop ();
return EFI_VOLUME_CORRUPTED;
}
*Fv = NewFv;
return EFI_SUCCESS;
}
/**
Locates the PEI Core entry point address
@param[in] Fv The firmware volume to search
@param[out] PeiCoreEntryPoint The entry point of the PEI Core image
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
EFI_STATUS
EFIAPI
FindPeiCoreImageBaseInFv (
IN EFI_FIRMWARE_VOLUME_HEADER *Fv,
OUT EFI_PHYSICAL_ADDRESS *PeiCoreImageBase
)
{
EFI_STATUS Status;
EFI_COMMON_SECTION_HEADER *Section;
Status = FindFfsFileAndSection (
Fv,
EFI_FV_FILETYPE_PEI_CORE,
EFI_SECTION_PE32,
&Section
);
if (EFI_ERROR (Status)) {
Status = FindFfsFileAndSection (
Fv,
EFI_FV_FILETYPE_PEI_CORE,
EFI_SECTION_TE,
&Section
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Unable to find PEI Core image\n"));
return Status;
}
}
*PeiCoreImageBase = (EFI_PHYSICAL_ADDRESS)(UINTN)(Section + 1);
return EFI_SUCCESS;
}
/**
Locates the PEI Core entry point address
@param[in,out] Fv The firmware volume to search
@param[out] PeiCoreEntryPoint The entry point of the PEI Core image
@retval EFI_SUCCESS The file and section was found
@retval EFI_NOT_FOUND The file and section was not found
@retval EFI_VOLUME_CORRUPTED The firmware volume was corrupted
**/
VOID
EFIAPI
FindPeiCoreImageBase (
IN OUT EFI_FIRMWARE_VOLUME_HEADER **BootFv,
OUT EFI_PHYSICAL_ADDRESS *PeiCoreImageBase
)
{
*PeiCoreImageBase = 0;
FindMainFv (BootFv);
DecompressGuidedFv (BootFv);
FindPeiCoreImageBaseInFv (*BootFv, PeiCoreImageBase);
}
/**
Find core image base.
**/
EFI_STATUS
EFIAPI
FindImageBase (
IN EFI_FIRMWARE_VOLUME_HEADER *BootFirmwareVolumePtr,
OUT EFI_PHYSICAL_ADDRESS *SecCoreImageBase
)
{
EFI_PHYSICAL_ADDRESS CurrentAddress;
EFI_PHYSICAL_ADDRESS EndOfFirmwareVolume;
EFI_FFS_FILE_HEADER *File;
UINT32 Size;
EFI_PHYSICAL_ADDRESS EndOfFile;
EFI_COMMON_SECTION_HEADER *Section;
EFI_PHYSICAL_ADDRESS EndOfSection;
*SecCoreImageBase = 0;
CurrentAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) BootFirmwareVolumePtr;
EndOfFirmwareVolume = CurrentAddress + BootFirmwareVolumePtr->FvLength;
//
// Loop through the FFS files in the Boot Firmware Volume
//
for (EndOfFile = CurrentAddress + BootFirmwareVolumePtr->HeaderLength; ; ) {
CurrentAddress = (EndOfFile + 7) & 0xfffffffffffffff8ULL;
if (CurrentAddress > EndOfFirmwareVolume) {
return EFI_NOT_FOUND;
}
File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress;
Size = *(UINT32*) File->Size & 0xffffff;
if (Size < sizeof (*File)) {
return EFI_NOT_FOUND;
}
EndOfFile = CurrentAddress + Size;
if (EndOfFile > EndOfFirmwareVolume) {
return EFI_NOT_FOUND;
}
//
// Look for SEC Core
//
if (File->Type != EFI_FV_FILETYPE_SECURITY_CORE) {
continue;
}
//
// Loop through the FFS file sections within the FFS file
//
EndOfSection = (EFI_PHYSICAL_ADDRESS)(UINTN) (File + 1);
for (;;) {
CurrentAddress = (EndOfSection + 3) & 0xfffffffffffffffcULL;
Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress;
Size = *(UINT32*) Section->Size & 0xffffff;
if (Size < sizeof (*Section)) {
return EFI_NOT_FOUND;
}
EndOfSection = CurrentAddress + Size;
if (EndOfSection > EndOfFile) {
return EFI_NOT_FOUND;
}
//
// Look for executable sections
//
if (Section->Type == EFI_SECTION_PE32 || Section->Type == EFI_SECTION_TE) {
if (File->Type == EFI_FV_FILETYPE_SECURITY_CORE) {
*SecCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) (Section + 1);
}
break;
}
}
//
// SEC Core image found
//
if (*SecCoreImageBase != 0) {
return EFI_SUCCESS;
}
}
}
/*
Find and return Pei Core entry point.
It also find SEC and PEI Core file debug inforamtion. It will report them if
remote debug is enabled.
**/
VOID
EFIAPI
FindAndReportEntryPoints (
IN EFI_FIRMWARE_VOLUME_HEADER **BootFirmwareVolumePtr,
OUT EFI_PEI_CORE_ENTRY_POINT *PeiCoreEntryPoint
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS SecCoreImageBase;
EFI_PHYSICAL_ADDRESS PeiCoreImageBase;
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
//
// Find SEC Core and PEI Core image base
//
Status = FindImageBase (*BootFirmwareVolumePtr, &SecCoreImageBase);
ASSERT_EFI_ERROR (Status);
FindPeiCoreImageBase (BootFirmwareVolumePtr, &PeiCoreImageBase);
ZeroMem ((VOID *) &ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));
//
// Report SEC Core debug information when remote debug is enabled
//
ImageContext.ImageAddress = SecCoreImageBase;
ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageContext.ImageAddress);
PeCoffLoaderRelocateImageExtraAction (&ImageContext);
//
// Report PEI Core debug information when remote debug is enabled
//
ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)PeiCoreImageBase;
ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageContext.ImageAddress);
PeCoffLoaderRelocateImageExtraAction (&ImageContext);
//
// Find PEI Core entry point
//
Status = PeCoffLoaderGetEntryPoint ((VOID *) (UINTN) PeiCoreImageBase, (VOID**) PeiCoreEntryPoint);
if (EFI_ERROR (Status)) {
*PeiCoreEntryPoint = 0;
}
return;
}
VOID
@ -66,92 +585,113 @@ SecCoreStartupWithStack (
IN VOID *TopOfCurrentStack
)
{
EFI_SEC_PEI_HAND_OFF *SecCoreData;
UINT8 *BottomOfTempRam;
UINT8 *TopOfTempRam;
UINTN SizeOfTempRam;
VOID *IdtPtr;
VOID *PeiCoreEntryPoint;
EFI_SEC_PEI_HAND_OFF SecCoreData;
SEC_IDT_TABLE IdtTableInStack;
IA32_DESCRIPTOR IdtDescriptor;
UINT32 Index;
DEBUG ((EFI_D_INFO,
ProcessLibraryConstructorList (NULL, NULL);
DEBUG ((EFI_D_ERROR,
"SecCoreStartupWithStack(0x%x, 0x%x)\n",
(UINT32)(UINTN)BootFv,
(UINT32)(UINTN)TopOfCurrentStack
));
ProcessLibraryConstructorList (NULL, NULL);
//
// Initialize floating point operating environment
// to be compliant with UEFI spec.
//
InitializeFloatingPointUnits ();
BottomOfTempRam = (UINT8*)(UINTN) INITIAL_TOP_OF_STACK;
SizeOfTempRam = (UINTN) SIZE_64KB;
TopOfTempRam = BottomOfTempRam + SizeOfTempRam;
//
// Initialize IDT
//
IdtTableInStack.PeiService = NULL;
for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {
CopyMem (&IdtTableInStack.IdtTable[Index], &mIdtEntryTemplate, sizeof (mIdtEntryTemplate));
}
IdtDescriptor.Base = (UINTN)&IdtTableInStack.IdtTable;
IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);
AsmWriteIdtr (&IdtDescriptor);
//
// |-------------|
// | SecCoreData | 4k
// |-------------|
// | Heap | 28k
// |-------------|
// |-------------| <-- TopOfCurrentStack
// | Stack | 32k
// |-------------| <---- INITIAL_TOP_OF_STACK
// |-------------|
// | Heap | 32k
// |-------------| <-- SecCoreData.TemporaryRamBase
//
//
// Bind this information into the SEC hand-off state
// Initialize SEC hand-off state
//
SecCoreData = (EFI_SEC_PEI_HAND_OFF*)((UINTN) TopOfTempRam - SIZE_4KB);
SecCoreData->DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
SecCoreData.DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
SecCoreData->TemporaryRamBase = (VOID*) BottomOfTempRam;
SecCoreData->TemporaryRamSize = SizeOfTempRam;
SecCoreData.TemporaryRamSize = SIZE_64KB;
SecCoreData.TemporaryRamBase = (VOID*)((UINT8 *)TopOfCurrentStack - SecCoreData.TemporaryRamSize);
SecCoreData->PeiTemporaryRamSize = 28 * SIZE_1KB;
SecCoreData->PeiTemporaryRamBase = (VOID*)((UINTN)SecCoreData - SecCoreData->PeiTemporaryRamSize);
SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
SecCoreData.PeiTemporaryRamSize = SecCoreData.TemporaryRamSize >> 1;
SecCoreData->StackBase = SecCoreData->TemporaryRamBase;
SecCoreData->StackSize = (UINTN)SecCoreData->PeiTemporaryRamBase - (UINTN)SecCoreData->TemporaryRamBase;
SecCoreData.StackBase = (UINT8 *)SecCoreData.TemporaryRamBase + SecCoreData.PeiTemporaryRamSize;
SecCoreData.StackSize = SecCoreData.TemporaryRamSize >> 1;
SecCoreData.BootFirmwareVolumeBase = BootFv;
SecCoreData.BootFirmwareVolumeSize = (UINTN) BootFv->FvLength;
//
// Initialize the IDT Pointer, since IA32 & X64 architectures
// use it to store the PEI Services pointer.
// Make sure the 8259 is masked before initializing the Debug Agent and the debug timer is enabled
//
IdtPtr = (VOID*)((UINT8*)SecCoreData + sizeof (*SecCoreData) + sizeof (UINTN));
IdtPtr = ALIGN_POINTER(IdtPtr, 16);
InitializeIdtPtr (IdtPtr);
IoWrite8 (0x21, 0xff);
IoWrite8 (0xA1, 0xff);
//
// Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.
//
InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);
}
/**
Caller provided function to be invoked at the end of InitializeDebugAgent().
FindPeiCoreEntryPoint (&BootFv, &PeiCoreEntryPoint);
Entry point to the C language phase of SEC. After the SEC assembly
code has initialized some temporary memory and set up the stack,
the control is transferred to this function.
@param[in] Context The first input parameter of InitializeDebugAgent().
**/
VOID
EFIAPI
SecStartupPhase2(
IN VOID *Context
)
{
EFI_SEC_PEI_HAND_OFF *SecCoreData;
EFI_FIRMWARE_VOLUME_HEADER *BootFv;
EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint;
SecCoreData = (EFI_SEC_PEI_HAND_OFF *) Context;
//
// Find PEI Core entry point. It will report SEC and Pei Core debug information if remote debug
// is enabled.
//
BootFv = (EFI_FIRMWARE_VOLUME_HEADER *)SecCoreData->BootFirmwareVolumeBase;
FindAndReportEntryPoints (&BootFv, &PeiCoreEntryPoint);
SecCoreData->BootFirmwareVolumeBase = BootFv;
SecCoreData->BootFirmwareVolumeSize = (UINTN) BootFv->FvLength;
if (PeiCoreEntryPoint != NULL) {
DEBUG ((EFI_D_INFO,
"Calling PEI Core entry point at 0x%x\n",
PeiCoreEntryPoint
));
//
// Transfer control to the PEI Core
//
PeiSwitchStacks (
(SWITCH_STACK_ENTRY_POINT) (UINTN) PeiCoreEntryPoint,
SecCoreData,
(VOID *) (UINTN) ((EFI_PEI_PPI_DESCRIPTOR *) &mPrivateDispatchTable),
NULL,
TopOfCurrentStack,
(VOID *)((UINTN)SecCoreData->StackBase + SecCoreData->StackSize)
);
}
//
// If we get here, then either we couldn't locate the PEI Core, or
// the PEI Core returned.
// Transfer the control to the PEI core
//
// Both of these errors are unrecoverable.
(*PeiCoreEntryPoint) (SecCoreData, (EFI_PEI_PPI_DESCRIPTOR *)&mPrivateDispatchTable);
//
// If we get here then the PEI Core returned, which is not recoverable.
//
ASSERT (FALSE);
CpuDeadLoop ();
@ -166,23 +706,61 @@ TemporaryRamMigration (
IN UINTN CopySize
)
{
IA32_DESCRIPTOR IdtDescriptor;
VOID *OldHeap;
VOID *NewHeap;
VOID *OldStack;
VOID *NewStack;
DEBUG_AGENT_CONTEXT_POSTMEM_SEC DebugAgentContext;
BOOLEAN OldStatus;
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
DEBUG ((EFI_D_ERROR, "TemporaryRamMigration(0x%x, 0x%x, 0x%x)\n", (UINTN)TemporaryMemoryBase, (UINTN)PermanentMemoryBase, CopySize));
OldHeap = (VOID*)(UINTN)TemporaryMemoryBase;
NewHeap = (VOID*)((UINTN)PermanentMemoryBase + (CopySize >> 1));
OldStack = (VOID*)((UINTN)TemporaryMemoryBase + (CopySize >> 1));
NewStack = (VOID*)(UINTN)PermanentMemoryBase;
DebugAgentContext.HeapMigrateOffset = (UINTN)NewHeap - (UINTN)OldHeap;
DebugAgentContext.StackMigrateOffset = (UINTN)NewStack - (UINTN)OldStack;
OldStatus = SaveAndSetDebugTimerInterrupt (FALSE);
InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, (VOID *) &DebugAgentContext, NULL);
//
// Migrate the whole temporary memory to permenent memory.
//
CopyMem((VOID*)(UINTN)PermanentMemoryBase, (VOID*)(UINTN)TemporaryMemoryBase, CopySize);
// Migrate Heap
//
CopyMem (NewHeap, OldHeap, CopySize >> 1);
//
// SecSwitchStack function must be invoked after the memory migration
// immediatly, also we need fixup the stack change caused by new call into
// permenent memory.
// Migrate Stack
//
CopyMem (NewStack, OldStack, CopySize >> 1);
//
// Rebase IDT table in permanent memory
//
AsmReadIdtr (&IdtDescriptor);
IdtDescriptor.Base = IdtDescriptor.Base - (UINTN)OldStack + (UINTN)NewStack;
AsmWriteIdtr (&IdtDescriptor);
//
// Use SetJump()/LongJump() to switch to a new stack.
//
SecSwitchStack (
(UINTN) TemporaryMemoryBase,
(UINTN) PermanentMemoryBase,
CopySize
);
if (SetJump (&JumpBuffer) == 0) {
#if defined (MDE_CPU_IA32)
JumpBuffer.Esp = JumpBuffer.Esp + DebugAgentContext.StackMigrateOffset;
#endif
#if defined (MDE_CPU_X64)
JumpBuffer.Rsp = JumpBuffer.Rsp + DebugAgentContext.StackMigrateOffset;
#endif
LongJump (&JumpBuffer, (UINTN)-1);
}
SaveAndSetDebugTimerInterrupt (OldStatus);
return EFI_SUCCESS;
}

57
OvmfPkg/Sec/SecMain.h
View File

@ -1,57 +0,0 @@
/** @file
Header file for SEC code
Copyright (c) 2008 - 2009, 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 _PLATFORM_SECMAIN_H_
#define _PLATFORM_SECMAIN_H_
VOID
EFIAPI
PeiSwitchStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *Context3, OPTIONAL
IN VOID *OldTopOfStack,
IN VOID *NewStack
);
VOID
EFIAPI
SecSwitchStack (
IN UINTN TemporaryMemoryBase,
IN UINTN PermanentMemoryBase,
IN UINTN CopySize
);
EFI_STATUS
EFIAPI
TemporaryRamMigration (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
IN UINTN CopySize
);
VOID
EFIAPI
FindPeiCoreEntryPoint (
IN EFI_FIRMWARE_VOLUME_HEADER **BootFirmwareVolumePtr,
OUT VOID **PeiCoreEntryPoint
);
#define INITIAL_TOP_OF_STACK BASE_512KB
#endif // _PLATFORM_SECMAIN_H_

25
OvmfPkg/Sec/SecMain.inf
View File

@ -28,31 +28,37 @@
#
[Sources]
FindPeiCore.c
SecMain.c
[Sources.IA32]
Ia32/SecEntry.asm
Ia32/SecEntry.S
Ia32/SwitchStack.c
Ia32/SecEntry.asm | MSFT
Ia32/SecEntry.asm | INTEL
Ia32/SecEntry.S | GCC
[Sources.X64]
X64/SecEntry.asm
X64/SecEntry.S
X64/SwitchStack.c
X64/SecEntry.asm | MSFT
X64/SecEntry.asm | INTEL
X64/SecEntry.S | GCC
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
UefiCpuPkg/UefiCpuPkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
BaseLib
DebugLib
BaseMemoryLib
ExtractGuidedSectionLib
PeiServicesLib
PcdLib
PeCoffGetEntryPointLib
UefiCpuLib
DebugAgentLib
IoLib
PeCoffLib
PeCoffGetEntryPointLib
PeCoffExtraActionLib
ExtractGuidedSectionLib
[Ppis]
gEfiTemporaryRamSupportPpiGuid # PPI ALWAYS_PRODUCED
@ -60,4 +66,3 @@
[Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize

4
OvmfPkg/Sec/X64/SecEntry.S
View File

@ -17,7 +17,7 @@
#------------------------------------------------------------------------------
#include "SecMain.h"
#include <Base.h>
#EXTERN ASM_PFX(SecCoreStartupWithStack)
@ -39,7 +39,7 @@ ASM_PFX(_ModuleEntryPoint):
# Load temporary stack top at very low memory. The C code
# can reload to a better address.
#
movq $INITIAL_TOP_OF_STACK, %rsp
movq $BASE_512KB, %rsp
nop
#

4
OvmfPkg/Sec/X64/SecEntry.asm
View File

@ -16,7 +16,7 @@
;*
;------------------------------------------------------------------------------
#include "SecMain.h"
#include <Base.h>
.code
@ -39,7 +39,7 @@ _ModuleEntryPoint PROC PUBLIC
; Load temporary stack top at very low memory. The C code
; can reload to a better address.
;
mov rsp, INITIAL_TOP_OF_STACK
mov rsp, BASE_512KB
nop
;

165
OvmfPkg/Sec/X64/SwitchStack.c
View File

@ -1,165 +0,0 @@
/** @file
Switch Stack functions.
Copyright (c) 2006 - 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.
**/
//
// Include common header file for this module.
//
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PeiServicesLib.h>
//
// Type define for PEI Core Entry Point function
//
typedef
VOID
(EFIAPI *PEI_CORE_ENTRY_POINT)(
IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList,
IN VOID *Data
)
;
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
PeiSwitchStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *Context3, OPTIONAL
IN VOID *OldTopOfStack,
IN VOID *NewStack
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
UINTN SizeOfStackUsed;
UINTN SetJumpFlag;
ASSERT (EntryPoint != NULL);
ASSERT (NewStack != NULL);
SetJumpFlag = SetJump (&JumpBuffer);
//
// The initial call to SetJump() must always return 0.
// Subsequent calls to LongJump() may cause a non-zero value to be returned by SetJump().
//
if (SetJumpFlag == 0) {
//
// Stack should be aligned with CPU_STACK_ALIGNMENT
//
ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);
//JumpBuffer.Rip = (UINTN)EntryPoint;
SizeOfStackUsed = (UINTN)OldTopOfStack - JumpBuffer.Rsp;
JumpBuffer.Rsp = (UINTN)NewStack - SizeOfStackUsed;
MemoryFence ();
CopyMem (
(VOID*) ((UINTN)NewStack - SizeOfStackUsed),
(VOID*) ((UINTN)OldTopOfStack - SizeOfStackUsed),
SizeOfStackUsed
);
LongJump (&JumpBuffer, (UINTN)-1);
} else {
(*(PEI_CORE_ENTRY_POINT)(EntryPoint)) (
(EFI_SEC_PEI_HAND_OFF *) Context1,
(EFI_PEI_PPI_DESCRIPTOR *) Context2,
Context3
);
}
//
// InternalSwitchStack () will never return
//
ASSERT (FALSE);
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
SecSwitchStack (
IN UINTN TemporaryMemoryBase,
IN UINTN PermanentMemoryBase,
IN UINTN CopySize
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
UINTN SetJumpFlag;
ASSERT ((VOID*)TemporaryMemoryBase != NULL);
ASSERT ((VOID*)PermanentMemoryBase != NULL);
SetJumpFlag = SetJump (&JumpBuffer);
//
// The initial call to SetJump() must always return 0.
// Subsequent calls to LongJump() may cause a non-zero value to be returned by SetJump().
//
if (SetJumpFlag == 0) {
DEBUG ((EFI_D_ERROR, "SecSwitchStack+%d: Rsp: 0x%xL\n", __LINE__, JumpBuffer.Rsp));
JumpBuffer.Rsp =
(INTN)JumpBuffer.Rsp -
(INTN)TemporaryMemoryBase +
(INTN)PermanentMemoryBase;
MemoryFence ();
CopyMem((VOID*)PermanentMemoryBase, (VOID*)TemporaryMemoryBase, CopySize);
LongJump (&JumpBuffer, (UINTN)-1);
}
}