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authorJordan Justen <jordan.l.justen@intel.com>2014-01-21 19:38:25 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2014-01-21 19:38:25 +0000
commitbb4aa855f3615352d1cbe733b1a329f6d94c7264 (patch)
tree343969111751fac11a2e702c7eb686be1c957bab /OvmfPkg
parent5300cf02b9146bddedb7585f44cebb0be4f91856 (diff)
downloadedk2-platforms-bb4aa855f3615352d1cbe733b1a329f6d94c7264.tar.xz
OvmfPkg/Sec/SecMain.c: Convert to CRLF (dos) text
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15145 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg')
-rw-r--r--OvmfPkg/Sec/SecMain.c1530
1 files changed, 765 insertions, 765 deletions
diff --git a/OvmfPkg/Sec/SecMain.c b/OvmfPkg/Sec/SecMain.c
index 3882dadd63..e235b964a8 100644
--- a/OvmfPkg/Sec/SecMain.c
+++ b/OvmfPkg/Sec/SecMain.c
@@ -1,765 +1,765 @@
-/** @file
- Main SEC phase code. Transitions to PEI.
-
- Copyright (c) 2008 - 2011, 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/PeimEntryPoint.h>
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/PeiServicesLib.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 <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
-TemporaryRamMigration (
- IN CONST EFI_PEI_SERVICES **PeiServices,
- IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
- IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
- IN UINTN CopySize
- );
-
-//
-//
-//
-EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mTemporaryRamSupportPpi = {
- TemporaryRamMigration
-};
-
-EFI_PEI_PPI_DESCRIPTOR mPrivateDispatchTable[] = {
- {
- (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
- &gEfiTemporaryRamSupportPpiGuid,
- &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
- }
-};
-
-/**
- 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;
-
- ASSERT (((UINTN) *BootFv & EFI_PAGE_MASK) == 0);
-
- 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
-EFIAPI
-SecCoreStartupWithStack (
- IN EFI_FIRMWARE_VOLUME_HEADER *BootFv,
- IN VOID *TopOfCurrentStack
- )
-{
- EFI_SEC_PEI_HAND_OFF SecCoreData;
- SEC_IDT_TABLE IdtTableInStack;
- IA32_DESCRIPTOR IdtDescriptor;
- UINT32 Index;
-
- ProcessLibraryConstructorList (NULL, NULL);
-
- DEBUG ((EFI_D_ERROR,
- "SecCoreStartupWithStack(0x%x, 0x%x)\n",
- (UINT32)(UINTN)BootFv,
- (UINT32)(UINTN)TopOfCurrentStack
- ));
-
- //
- // Initialize floating point operating environment
- // to be compliant with UEFI spec.
- //
- InitializeFloatingPointUnits ();
-
- //
- // 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);
-
- //
- // |-------------| <-- TopOfCurrentStack
- // | Stack | 32k
- // |-------------|
- // | Heap | 32k
- // |-------------| <-- SecCoreData.TemporaryRamBase
- //
-
- //
- // Initialize SEC hand-off state
- //
- SecCoreData.DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
-
- SecCoreData.TemporaryRamSize = SIZE_64KB;
- SecCoreData.TemporaryRamBase = (VOID*)((UINT8 *)TopOfCurrentStack - SecCoreData.TemporaryRamSize);
-
- SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
- SecCoreData.PeiTemporaryRamSize = SecCoreData.TemporaryRamSize >> 1;
-
- SecCoreData.StackBase = (UINT8 *)SecCoreData.TemporaryRamBase + SecCoreData.PeiTemporaryRamSize;
- SecCoreData.StackSize = SecCoreData.TemporaryRamSize >> 1;
-
- SecCoreData.BootFirmwareVolumeBase = BootFv;
- SecCoreData.BootFirmwareVolumeSize = (UINTN) BootFv->FvLength;
-
- //
- // Make sure the 8259 is masked before initializing the Debug Agent and the debug timer is enabled
- //
- 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().
-
- 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;
-
- //
- // Transfer the control to the PEI core
- //
- (*PeiCoreEntryPoint) (SecCoreData, (EFI_PEI_PPI_DESCRIPTOR *)&mPrivateDispatchTable);
-
- //
- // If we get here then the PEI Core returned, which is not recoverable.
- //
- ASSERT (FALSE);
- CpuDeadLoop ();
-}
-
-EFI_STATUS
-EFIAPI
-TemporaryRamMigration (
- IN CONST EFI_PEI_SERVICES **PeiServices,
- IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
- IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
- 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 Heap
- //
- CopyMem (NewHeap, OldHeap, CopySize >> 1);
-
- //
- // 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.
- //
- 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;
-}
-
+/** @file
+ Main SEC phase code. Transitions to PEI.
+
+ Copyright (c) 2008 - 2011, 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/PeimEntryPoint.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/PeiServicesLib.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 <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
+TemporaryRamMigration (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
+ IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
+ IN UINTN CopySize
+ );
+
+//
+//
+//
+EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mTemporaryRamSupportPpi = {
+ TemporaryRamMigration
+};
+
+EFI_PEI_PPI_DESCRIPTOR mPrivateDispatchTable[] = {
+ {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiTemporaryRamSupportPpiGuid,
+ &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
+ }
+};
+
+/**
+ 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;
+
+ ASSERT (((UINTN) *BootFv & EFI_PAGE_MASK) == 0);
+
+ 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
+EFIAPI
+SecCoreStartupWithStack (
+ IN EFI_FIRMWARE_VOLUME_HEADER *BootFv,
+ IN VOID *TopOfCurrentStack
+ )
+{
+ EFI_SEC_PEI_HAND_OFF SecCoreData;
+ SEC_IDT_TABLE IdtTableInStack;
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINT32 Index;
+
+ ProcessLibraryConstructorList (NULL, NULL);
+
+ DEBUG ((EFI_D_ERROR,
+ "SecCoreStartupWithStack(0x%x, 0x%x)\n",
+ (UINT32)(UINTN)BootFv,
+ (UINT32)(UINTN)TopOfCurrentStack
+ ));
+
+ //
+ // Initialize floating point operating environment
+ // to be compliant with UEFI spec.
+ //
+ InitializeFloatingPointUnits ();
+
+ //
+ // 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);
+
+ //
+ // |-------------| <-- TopOfCurrentStack
+ // | Stack | 32k
+ // |-------------|
+ // | Heap | 32k
+ // |-------------| <-- SecCoreData.TemporaryRamBase
+ //
+
+ //
+ // Initialize SEC hand-off state
+ //
+ SecCoreData.DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
+
+ SecCoreData.TemporaryRamSize = SIZE_64KB;
+ SecCoreData.TemporaryRamBase = (VOID*)((UINT8 *)TopOfCurrentStack - SecCoreData.TemporaryRamSize);
+
+ SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
+ SecCoreData.PeiTemporaryRamSize = SecCoreData.TemporaryRamSize >> 1;
+
+ SecCoreData.StackBase = (UINT8 *)SecCoreData.TemporaryRamBase + SecCoreData.PeiTemporaryRamSize;
+ SecCoreData.StackSize = SecCoreData.TemporaryRamSize >> 1;
+
+ SecCoreData.BootFirmwareVolumeBase = BootFv;
+ SecCoreData.BootFirmwareVolumeSize = (UINTN) BootFv->FvLength;
+
+ //
+ // Make sure the 8259 is masked before initializing the Debug Agent and the debug timer is enabled
+ //
+ 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().
+
+ 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;
+
+ //
+ // Transfer the control to the PEI core
+ //
+ (*PeiCoreEntryPoint) (SecCoreData, (EFI_PEI_PPI_DESCRIPTOR *)&mPrivateDispatchTable);
+
+ //
+ // If we get here then the PEI Core returned, which is not recoverable.
+ //
+ ASSERT (FALSE);
+ CpuDeadLoop ();
+}
+
+EFI_STATUS
+EFIAPI
+TemporaryRamMigration (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
+ IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
+ 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 Heap
+ //
+ CopyMem (NewHeap, OldHeap, CopySize >> 1);
+
+ //
+ // 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.
+ //
+ 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;
+}
+