+++ /dev/null
-/** @file\r
- Locate the entry point for the PEI Core\r
-\r
- Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r
- SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include <PiPei.h>\r
-#include <Library/BaseLib.h>\r
-#include <Library/PeCoffGetEntryPointLib.h>\r
-\r
-#include "SecMain.h"\r
-\r
-/**\r
- Find core image base.\r
-\r
- @param[in] BootFirmwareVolumePtr Point to the boot firmware volume.\r
- @param[out] SecCoreImageBase The base address of the SEC core image.\r
- @param[out] PeiCoreImageBase The base address of the PEI core image.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-FindImageBase (\r
- IN EFI_FIRMWARE_VOLUME_HEADER *BootFirmwareVolumePtr,\r
- OUT EFI_PHYSICAL_ADDRESS *SecCoreImageBase,\r
- OUT EFI_PHYSICAL_ADDRESS *PeiCoreImageBase\r
- )\r
-{\r
- EFI_PHYSICAL_ADDRESS CurrentAddress;\r
- EFI_PHYSICAL_ADDRESS EndOfFirmwareVolume;\r
- EFI_FFS_FILE_HEADER *File;\r
- UINT32 Size;\r
- EFI_PHYSICAL_ADDRESS EndOfFile;\r
- EFI_COMMON_SECTION_HEADER *Section;\r
- EFI_PHYSICAL_ADDRESS EndOfSection;\r
-\r
- *SecCoreImageBase = 0;\r
- *PeiCoreImageBase = 0;\r
-\r
- CurrentAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) BootFirmwareVolumePtr;\r
- EndOfFirmwareVolume = CurrentAddress + BootFirmwareVolumePtr->FvLength;\r
-\r
- //\r
- // Loop through the FFS files in the Boot Firmware Volume\r
- //\r
- for (EndOfFile = CurrentAddress + BootFirmwareVolumePtr->HeaderLength; ; ) {\r
-\r
- CurrentAddress = (EndOfFile + 7) & 0xfffffffffffffff8ULL;\r
- if (CurrentAddress > EndOfFirmwareVolume) {\r
- return EFI_NOT_FOUND;\r
- }\r
-\r
- File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress;\r
- if (IS_FFS_FILE2 (File)) {\r
- Size = FFS_FILE2_SIZE (File);\r
- if (Size <= 0x00FFFFFF) {\r
- return EFI_NOT_FOUND;\r
- }\r
- } else {\r
- Size = FFS_FILE_SIZE (File);\r
- if (Size < sizeof (EFI_FFS_FILE_HEADER)) {\r
- return EFI_NOT_FOUND;\r
- }\r
- }\r
-\r
- EndOfFile = CurrentAddress + Size;\r
- if (EndOfFile > EndOfFirmwareVolume) {\r
- return EFI_NOT_FOUND;\r
- }\r
-\r
- //\r
- // Look for SEC Core / PEI Core files\r
- //\r
- if (File->Type != EFI_FV_FILETYPE_SECURITY_CORE &&\r
- File->Type != EFI_FV_FILETYPE_PEI_CORE) {\r
- continue;\r
- }\r
-\r
- //\r
- // Loop through the FFS file sections within the FFS file\r
- //\r
- if (IS_FFS_FILE2 (File)) {\r
- EndOfSection = (EFI_PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) File + sizeof (EFI_FFS_FILE_HEADER2));\r
- } else {\r
- EndOfSection = (EFI_PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) File + sizeof (EFI_FFS_FILE_HEADER));\r
- }\r
- for (;;) {\r
- CurrentAddress = (EndOfSection + 3) & 0xfffffffffffffffcULL;\r
- Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress;\r
-\r
- if (IS_SECTION2 (Section)) {\r
- Size = SECTION2_SIZE (Section);\r
- if (Size <= 0x00FFFFFF) {\r
- return EFI_NOT_FOUND;\r
- }\r
- } else {\r
- Size = SECTION_SIZE (Section);\r
- if (Size < sizeof (EFI_COMMON_SECTION_HEADER)) {\r
- return EFI_NOT_FOUND;\r
- }\r
- }\r
-\r
- EndOfSection = CurrentAddress + Size;\r
- if (EndOfSection > EndOfFile) {\r
- return EFI_NOT_FOUND;\r
- }\r
-\r
- //\r
- // Look for executable sections\r
- //\r
- if (Section->Type == EFI_SECTION_PE32 || Section->Type == EFI_SECTION_TE) {\r
- if (File->Type == EFI_FV_FILETYPE_SECURITY_CORE) {\r
- if (IS_SECTION2 (Section)) {\r
- *SecCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER2));\r
- } else {\r
- *SecCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER));\r
- }\r
- } else {\r
- if (IS_SECTION2 (Section)) {\r
- *PeiCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER2));\r
- } else {\r
- *PeiCoreImageBase = (PHYSICAL_ADDRESS) (UINTN) ((UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER));\r
- }\r
- }\r
- break;\r
- }\r
- }\r
-\r
- //\r
- // Both SEC Core and PEI Core images found\r
- //\r
- if (*SecCoreImageBase != 0 && *PeiCoreImageBase != 0) {\r
- return EFI_SUCCESS;\r
- }\r
- }\r
-}\r
-\r
-/**\r
- Find and return Pei Core entry point.\r
-\r
- It also find SEC and PEI Core file debug information. It will report them if\r
- remote debug is enabled.\r
-\r
- @param[in] BootFirmwareVolumePtr Point to the boot firmware volume.\r
- @param[out] PeiCoreEntryPoint The entry point of the PEI core.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-FindAndReportEntryPoints (\r
- IN EFI_FIRMWARE_VOLUME_HEADER *BootFirmwareVolumePtr,\r
- OUT EFI_PEI_CORE_ENTRY_POINT *PeiCoreEntryPoint\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS SecCoreImageBase;\r
- EFI_PHYSICAL_ADDRESS PeiCoreImageBase;\r
- PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r
-\r
- //\r
- // Find SEC Core and PEI Core image base\r
- //\r
- Status = FindImageBase (BootFirmwareVolumePtr, &SecCoreImageBase, &PeiCoreImageBase);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- ZeroMem ((VOID *) &ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));\r
- //\r
- // Report SEC Core debug information when remote debug is enabled\r
- //\r
- ImageContext.ImageAddress = SecCoreImageBase;\r
- ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageContext.ImageAddress);\r
- PeCoffLoaderRelocateImageExtraAction (&ImageContext);\r
-\r
- //\r
- // Report PEI Core debug information when remote debug is enabled\r
- //\r
- ImageContext.ImageAddress = PeiCoreImageBase;\r
- ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) ImageContext.ImageAddress);\r
- PeCoffLoaderRelocateImageExtraAction (&ImageContext);\r
-\r
- //\r
- // Find PEI Core entry point\r
- //\r
- Status = PeCoffLoaderGetEntryPoint ((VOID *) (UINTN) PeiCoreImageBase, (VOID**) PeiCoreEntryPoint);\r
- if (EFI_ERROR (Status)) {\r
- *PeiCoreEntryPoint = 0;\r
- }\r
-\r
- return;\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff