diff options
author | jyao1 <jyao1> | 2014-07-24 06:52:43 +0000 |
---|---|---|
committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-07-24 06:52:43 +0000 |
commit | a33a2f62218e6e49a25d63474b7fe423d8ee4b71 (patch) | |
tree | ca8e4dd491a71f4a7e36fbc17c5e95276d555b43 /IntelFspWrapperPkg/FspInitPei/FindPeiCore.c | |
parent | 34717ef034ed275a15683dafd29cb518af50fff0 (diff) | |
download | edk2-a33a2f62218e6e49a25d63474b7fe423d8ee4b71.tar.gz edk2-a33a2f62218e6e49a25d63474b7fe423d8ee4b71.tar.bz2 edk2-a33a2f62218e6e49a25d63474b7fe423d8ee4b71.zip |
Add IntelFspWrapper to support boot EDKII on FSP bin.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Ravi Rangarajan <ravi.p.rangarajan@intel.com>
Reviewed by: Maurice Ma <maurice.ma@intel.com>
Reviewed by: Giri Mudusuru <giri.p.mudusuru@intel.com>
Reviewed by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15676 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFspWrapperPkg/FspInitPei/FindPeiCore.c')
-rw-r--r-- | IntelFspWrapperPkg/FspInitPei/FindPeiCore.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/IntelFspWrapperPkg/FspInitPei/FindPeiCore.c b/IntelFspWrapperPkg/FspInitPei/FindPeiCore.c new file mode 100644 index 0000000000..ce003d056f --- /dev/null +++ b/IntelFspWrapperPkg/FspInitPei/FindPeiCore.c @@ -0,0 +1,199 @@ +/** @file
+ Locate the entry point for the PEI Core
+
+ Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/PeCoffGetEntryPointLib.h>
+
+#include "SecMain.h"
+
+/**
+ Find core image base.
+
+ @param[in] BootFirmwareVolumePtr Point to the boot firmware volume.
+ @param[out] SecCoreImageBase The base address of the SEC core image.
+ @param[out] PeiCoreImageBase The base address of the PEI core image.
+
+**/
+EFI_STATUS
+EFIAPI
+FindImageBase (
+ IN EFI_FIRMWARE_VOLUME_HEADER *BootFirmwareVolumePtr,
+ OUT EFI_PHYSICAL_ADDRESS *SecCoreImageBase,
+ OUT EFI_PHYSICAL_ADDRESS *PeiCoreImageBase
+ )
+{
+ 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;
+ *PeiCoreImageBase = 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;
+ if (IS_FFS_FILE2 (File)) {
+ Size = FFS_FILE2_SIZE (File);
+ if (Size <= 0x00FFFFFF) {
+ return EFI_NOT_FOUND;
+ }
+ } else {
+ Size = FFS_FILE_SIZE (File);
+ if (Size < sizeof (EFI_FFS_FILE_HEADER)) {
+ return EFI_NOT_FOUND;
+ }
+ }
+
+ EndOfFile = CurrentAddress + Size;
+ if (EndOfFile > EndOfFirmwareVolume) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Look for SEC Core / PEI Core files
+ //
+ if (File->Type != EFI_FV_FILETYPE_SECURITY_CORE &&
+ File->Type != EFI_FV_FILETYPE_PEI_CORE) {
+ continue;
+ }
+
+ //
+ // Loop through the FFS file sections within the FFS file
+ //
+ if (IS_FFS_FILE2 (File)) {
+ EndOfSection = (EFI_PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) File + sizeof (EFI_FFS_FILE_HEADER2));
+ } else {
+ EndOfSection = (EFI_PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) File + sizeof (EFI_FFS_FILE_HEADER));
+ }
+ for (;;) {
+ CurrentAddress = (EndOfSection + 3) & 0xfffffffffffffffcULL;
+ Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress;
+
+ if (IS_SECTION2 (Section)) {
+ Size = SECTION2_SIZE (Section);
+ if (Size <= 0x00FFFFFF) {
+ return EFI_NOT_FOUND;
+ }
+ } else {
+ Size = SECTION_SIZE (Section);
+ if (Size < sizeof (EFI_COMMON_SECTION_HEADER)) {
+ 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) {
+ if (IS_SECTION2 (Section)) {
+ *SecCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER2));
+ } else {
+ *SecCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER));
+ }
+ } else {
+ if (IS_SECTION2 (Section)) {
+ *PeiCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER2));
+ } else {
+ *PeiCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER));
+ }
+ }
+ break;
+ }
+ }
+
+ //
+ // Both SEC Core and PEI Core images found
+ //
+ if (*SecCoreImageBase != 0 && *PeiCoreImageBase != 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.
+
+ @param[in] BootFirmwareVolumePtr Point to the boot firmware volume.
+ @param[out] PeiCoreEntryPoint The entry point of the PEI core.
+
+**/
+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, &PeiCoreImageBase);
+ ASSERT_EFI_ERROR (Status);
+
+ 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 = 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;
+}
+
|