--- /dev/null
+/*++\r
+\r
+Copyright (c) 2006, Intel Corporation \r
+All rights reserved. This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+Module Name:\r
+\r
+ DxeLoad.c\r
+\r
+Abstract:\r
+\r
+ Last PEIM.\r
+ Responsibility of this module is to load the DXE Core from a Firmware Volume.\r
+\r
+--*/\r
+\r
+#include <DxeIpl.h>\r
+\r
+#pragma warning( disable : 4305 )\r
+\r
+BOOLEAN gInMemory = FALSE;\r
+\r
+//\r
+// GUID for EM64T\r
+//\r
+#define EFI_PPI_NEEDED_BY_DXE \\r
+ { \\r
+ 0x4d37da42, 0x3a0c, 0x4eda, 0xb9, 0xeb, 0xbc, 0x0e, 0x1d, 0xb4, 0x71, 0x3b \\r
+ }\r
+EFI_GUID mPpiNeededByDxeGuid = EFI_PPI_NEEDED_BY_DXE;\r
+\r
+//\r
+// Module Globals used in the DXE to PEI handoff\r
+// These must be module globals, so the stack can be switched\r
+//\r
+static EFI_DXE_IPL_PPI mDxeIplPpi = {\r
+ DxeLoadCore\r
+};\r
+\r
+static EFI_PEI_FV_FILE_LOADER_PPI mLoadFilePpi = {\r
+ DxeIplLoadFile\r
+};\r
+\r
+static EFI_PEI_PPI_DESCRIPTOR mPpiLoadFile = {\r
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
+ &gEfiPeiFvFileLoaderPpiGuid,\r
+ &mLoadFilePpi\r
+};\r
+\r
+static EFI_PEI_PPI_DESCRIPTOR mPpiList = {\r
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
+ &gEfiDxeIplPpiGuid,\r
+ &mDxeIplPpi\r
+};\r
+\r
+static EFI_PEI_PPI_DESCRIPTOR mPpiPeiInMemory = {\r
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
+ &gPeiInMemoryGuid,\r
+ NULL\r
+};\r
+\r
+static EFI_PEI_PPI_DESCRIPTOR mPpiSignal = {\r
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
+ &gEfiEndOfPeiSignalPpiGuid,\r
+ NULL\r
+};\r
+\r
+DECOMPRESS_LIBRARY gEfiDecompress = {\r
+ UefiDecompressGetInfo,\r
+ UefiDecompress\r
+};\r
+\r
+DECOMPRESS_LIBRARY gTianoDecompress = {\r
+ TianoDecompressGetInfo,\r
+ TianoDecompress\r
+};\r
+\r
+DECOMPRESS_LIBRARY gCustomDecompress = {\r
+ CustomDecompressGetInfo,\r
+ CustomDecompress\r
+};\r
+\r
+STATIC\r
+UINTN\r
+GetOccupiedSize (\r
+ IN UINTN ActualSize,\r
+ IN UINTN Alignment\r
+ )\r
+{\r
+ UINTN OccupiedSize;\r
+\r
+ OccupiedSize = ActualSize;\r
+ while ((OccupiedSize & (Alignment - 1)) != 0) {\r
+ OccupiedSize++;\r
+ }\r
+\r
+ return OccupiedSize;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+PeimInitializeDxeIpl (\r
+ IN EFI_FFS_FILE_HEADER *FfsHeader,\r
+ IN EFI_PEI_SERVICES **PeiServices\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Initializes the Dxe Ipl PPI\r
+\r
+Arguments:\r
+\r
+ FfsHeader - Pointer to FFS file header\r
+ PeiServices - General purpose services available to every PEIM.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;\r
+ EFI_BOOT_MODE BootMode;\r
+\r
+ Status = PeiServicesGetBootMode (&BootMode);\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = PeiServicesLocatePpi (\r
+ &gPeiInMemoryGuid,\r
+ 0,\r
+ NULL,\r
+ NULL\r
+ );\r
+\r
+ if (EFI_ERROR (Status) && (BootMode != BOOT_ON_S3_RESUME)) { \r
+ //\r
+ // The DxeIpl has not yet been shadowed\r
+ //\r
+ PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();\r
+\r
+ //\r
+ // Shadow DxeIpl and then re-run its entry point\r
+ //\r
+ Status = ShadowDxeIpl (FfsHeader, PeiEfiPeiPeCoffLoader);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ } else {\r
+ if (BootMode != BOOT_ON_S3_RESUME) {\r
+ //\r
+ // The DxeIpl has been shadowed\r
+ //\r
+ gInMemory = TRUE;\r
+\r
+ //\r
+ // Install LoadFile PPI\r
+ //\r
+ Status = PeiServicesInstallPpi (&mPpiLoadFile);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+ //\r
+ // Install DxeIpl PPI\r
+ //\r
+ PeiServicesInstallPpi (&mPpiList);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+DxeLoadCore (\r
+ IN EFI_DXE_IPL_PPI *This,\r
+ IN EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_HOB_POINTERS HobList\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Main entry point to last PEIM\r
+\r
+Arguments:\r
+\r
+ This - Entry point for DXE IPL PPI\r
+ PeiServices - General purpose services available to every PEIM.\r
+ HobList - Address to the Pei HOB list\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - DEX core was successfully loaded.\r
+ EFI_OUT_OF_RESOURCES - There are not enough resources to load DXE core.\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PHYSICAL_ADDRESS TopOfStack;\r
+ EFI_PHYSICAL_ADDRESS BaseOfStack;\r
+ EFI_PHYSICAL_ADDRESS BspStore;\r
+ EFI_GUID DxeCoreFileName;\r
+ VOID *DxeCorePe32Data;\r
+ EFI_PHYSICAL_ADDRESS DxeCoreAddress;\r
+ UINT64 DxeCoreSize;\r
+ EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint;\r
+ EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;\r
+ EFI_BOOT_MODE BootMode;\r
+ EFI_PEI_RECOVERY_MODULE_PPI *PeiRecovery;\r
+ EFI_PEI_S3_RESUME_PPI *S3Resume;\r
+ EFI_PHYSICAL_ADDRESS PageTables;\r
+ \r
+ TopOfStack = 0;\r
+ BaseOfStack = 0;\r
+ BspStore = 0;\r
+ Status = EFI_SUCCESS;\r
+\r
+ //\r
+ // if in S3 Resume, restore configure\r
+ //\r
+ Status = PeiServicesGetBootMode (&BootMode);\r
+\r
+ if (!EFI_ERROR (Status) && (BootMode == BOOT_ON_S3_RESUME)) {\r
+ Status = PeiServicesLocatePpi (\r
+ &gEfiPeiS3ResumePpiGuid,\r
+ 0,\r
+ NULL,\r
+ (VOID **)&S3Resume\r
+ );\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = S3Resume->S3RestoreConfig (PeiServices);\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ Status = EFI_SUCCESS;\r
+\r
+ //\r
+ // Install the PEI Protocols that are shared between PEI and DXE\r
+ //\r
+#ifdef EFI_NT_EMULATOR\r
+ PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();\r
+ ASSERT (PeiEfiPeiPeCoffLoader != NULL);\r
+#else\r
+ PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderX64Protocol ();\r
+#endif \r
+\r
+#if 0\r
+ Status = InstallEfiPeiPeCoffLoader64 (PeiServices, &PeiEfiPeiPeCoffLoader, NULL);\r
+ ASSERT_EFI_ERROR (Status);\r
+#endif\r
+ //\r
+ // Allocate 128KB for the Stack\r
+ //\r
+ PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);\r
+ ASSERT (BaseOfStack != 0);\r
+\r
+ //\r
+ // Compute the top of the stack we were allocated. Pre-allocate a 32 bytes\r
+ // for safety (PpisNeededByDxe and DxeCore).\r
+ //\r
+ TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - 32;\r
+\r
+ //\r
+ // Add architecture-specifc HOBs (including the BspStore HOB)\r
+ //\r
+ Status = CreateArchSpecificHobs (&BspStore);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // See if we are in crisis recovery\r
+ //\r
+ Status = PeiServicesGetBootMode (&BootMode);\r
+ if (!EFI_ERROR (Status) && (BootMode == BOOT_IN_RECOVERY_MODE)) {\r
+ Status = PeiServicesLocatePpi (\r
+ &gEfiPeiRecoveryModulePpiGuid,\r
+ 0,\r
+ NULL,\r
+ (VOID **)&PeiRecovery\r
+ );\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+ Status = PeiRecovery->LoadRecoveryCapsule (PeiServices, PeiRecovery);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ //\r
+ // Find the DXE Core in a Firmware Volume\r
+ //\r
+ Status = PeiFindFile (\r
+ EFI_FV_FILETYPE_DXE_CORE,\r
+ EFI_SECTION_PE32,\r
+ &DxeCoreFileName,\r
+ &DxeCorePe32Data\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // Transfer control to the DXE Core\r
+ // The handoff state is simply a pointer to the HOB list\r
+ //\r
+ // PEI_PERF_END (PeiServices, L"DxeIpl", NULL, 0);\r
+\r
+ Status = PeiServicesInstallPpi (&mPpiSignal);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // Load the GDT of Go64. Since the GDT of 32-bit Tiano locates in the BS_DATA \\r
+ // memory, it may be corrupted when copying FV to high-end memory \r
+ LoadGo64Gdt();\r
+\r
+ //\r
+ // Limit to 36 bits of addressing for debug. Should get it from CPU\r
+ //\r
+ PageTables = CreateIdentityMappingPageTables (36);\r
+\r
+\r
+ //\r
+ // Load the DXE Core from a Firmware Volume\r
+ //\r
+ Status = PeiLoadx64File (\r
+ PeiEfiPeiPeCoffLoader,\r
+ DxeCorePe32Data,\r
+ EfiBootServicesData,\r
+ &DxeCoreAddress,\r
+ &DxeCoreSize,\r
+ &DxeCoreEntryPoint\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ //\r
+ // Add HOB for the DXE Core\r
+ //\r
+ BuildModuleHob (\r
+ &DxeCoreFileName,\r
+ DxeCoreAddress,\r
+ DxeCoreSize,\r
+ DxeCoreEntryPoint\r
+ );\r
+\r
+ //\r
+ // Report Status Code EFI_SW_PEI_PC_HANDOFF_TO_NEXT\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_PROGRESS_CODE,\r
+ EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_CORE_PC_HANDOFF_TO_NEXT\r
+ );\r
+\r
+ DEBUG ((EFI_D_INFO, "DXE Core Entry\n"));\r
+ //\r
+ // Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.\r
+ // Call x64 drivers passing in single argument, a pointer to the HOBs.\r
+ //\r
+ ActivateLongMode (\r
+ PageTables, \r
+ (EFI_PHYSICAL_ADDRESS)(UINTN)(HobList.Raw), \r
+ TopOfStack,\r
+ 0x00000000,\r
+ DxeCoreEntryPoint\r
+ );\r
+\r
+ //\r
+ // If we get here, then the DXE Core returned. This is an error\r
+ //\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return EFI_OUT_OF_RESOURCES;\r
+}\r
+\r
+EFI_STATUS\r
+PeiFindFile (\r
+ IN UINT8 Type,\r
+ IN UINT16 SectionType,\r
+ OUT EFI_GUID *FileName,\r
+ OUT VOID **Pe32Data\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Finds a PE/COFF of a specific Type and SectionType in the Firmware Volumes\r
+ described in the HOB list. Able to search in a compression set in a FFS file.\r
+ But only one level of compression is supported, that is, not able to search\r
+ in a compression set that is within another compression set.\r
+\r
+Arguments:\r
+\r
+ Type - The Type of file to retrieve\r
+\r
+ SectionType - The type of section to retrieve from a file\r
+\r
+ FileName - The name of the file found in the Firmware Volume\r
+\r
+ Pe32Data - Pointer to the beginning of the PE/COFF file found in the Firmware Volume\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file was found, and the name is returned in FileName, and a pointer to\r
+ the PE/COFF image is returned in Pe32Data\r
+\r
+ EFI_NOT_FOUND - The file was not found in the Firmware Volumes present in the HOB List\r
+\r
+--*/\r
+{\r
+ EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r
+ EFI_FFS_FILE_HEADER *FfsFileHeader;\r
+ VOID *SectionData;\r
+ EFI_STATUS Status;\r
+ EFI_PEI_HOB_POINTERS Hob;\r
+\r
+\r
+ FwVolHeader = NULL;\r
+ FfsFileHeader = NULL;\r
+ SectionData = NULL;\r
+\r
+ //\r
+ // Foreach Firmware Volume, look for a specified type\r
+ // of file and break out when one is found\r
+ //\r
+ Hob.Raw = GetHobList ();\r
+ while ((Hob.Raw = GetNextHob (EFI_HOB_TYPE_FV, Hob.Raw)) != NULL) {\r
+ FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) (Hob.FirmwareVolume->BaseAddress);\r
+ Status = PeiServicesFfsFindNextFile (\r
+ Type,\r
+ FwVolHeader,\r
+ &FfsFileHeader\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = PeiProcessFile (\r
+ SectionType,\r
+ &FfsFileHeader,\r
+ Pe32Data\r
+ );\r
+ CopyMem (FileName, &FfsFileHeader->Name, sizeof (EFI_GUID));\r
+ return Status;\r
+ }\r
+ Hob.Raw = GET_NEXT_HOB (Hob);\r
+ }\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
+EFI_STATUS\r
+PeiLoadx64File (\r
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader,\r
+ IN VOID *Pe32Data,\r
+ IN EFI_MEMORY_TYPE MemoryType,\r
+ OUT EFI_PHYSICAL_ADDRESS *ImageAddress,\r
+ OUT UINT64 *ImageSize,\r
+ OUT EFI_PHYSICAL_ADDRESS *EntryPoint\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Loads and relocates a PE/COFF image into memory.\r
+\r
+Arguments:\r
+\r
+ PeiEfiPeiPeCoffLoader - Pointer to a PE COFF loader protocol\r
+\r
+ Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated\r
+\r
+ ImageAddress - The base address of the relocated PE/COFF image\r
+\r
+ ImageSize - The size of the relocated PE/COFF image\r
+\r
+ EntryPoint - The entry point of the relocated PE/COFF image\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file was loaded and relocated\r
+ EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r
+ EFI_PHYSICAL_ADDRESS MemoryBuffer;\r
+\r
+ ZeroMem (&ImageContext, sizeof (ImageContext));\r
+ ImageContext.Handle = Pe32Data;\r
+ Status = GetImageReadFunction (&ImageContext);\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = PeiEfiPeiPeCoffLoader->GetImageInfo (PeiEfiPeiPeCoffLoader, &ImageContext);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // Allocate Memory for the image\r
+ //\r
+ //\r
+ // Allocate Memory for the image\r
+ //\r
+ PeiServicesAllocatePages (MemoryType, EFI_SIZE_TO_PAGES ((UINT32) ImageContext.ImageSize), &MemoryBuffer);\r
+ ImageContext.ImageAddress = MemoryBuffer;\r
+ ASSERT (ImageContext.ImageAddress != 0);\r
+\r
+ //\r
+ // Load the image to our new buffer\r
+ //\r
+\r
+ Status = PeiEfiPeiPeCoffLoader->LoadImage (PeiEfiPeiPeCoffLoader, &ImageContext);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ \r
+ //\r
+ // Relocate the image in our new buffer\r
+ //\r
+ Status = PeiEfiPeiPeCoffLoader->RelocateImage (PeiEfiPeiPeCoffLoader, &ImageContext);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Flush the instruction cache so the image data is written before we execute it\r
+ //\r
+ InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);\r
+\r
+ *ImageAddress = ImageContext.ImageAddress;\r
+ *ImageSize = ImageContext.ImageSize;\r
+ *EntryPoint = ImageContext.EntryPoint;\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+ShadowDxeIpl (\r
+ IN EFI_FFS_FILE_HEADER *DxeIplFileHeader,\r
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Shadow the DXE IPL to a different memory location. This occurs after permanent\r
+ memory has been discovered.\r
+\r
+Arguments:\r
+\r
+ DxeIplFileHeader - Pointer to the FFS file header of the DXE IPL driver\r
+\r
+ PeiEfiPeiPeCoffLoader - Pointer to a PE COFF loader protocol\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - DXE IPL was successfully shadowed to a different memory location.\r
+\r
+ EFI_ ERROR - The shadow was unsuccessful.\r
+\r
+\r
+--*/\r
+{\r
+ UINTN SectionLength;\r
+ UINTN OccupiedSectionLength;\r
+ EFI_PHYSICAL_ADDRESS DxeIplAddress;\r
+ UINT64 DxeIplSize;\r
+ EFI_PHYSICAL_ADDRESS DxeIplEntryPoint;\r
+ EFI_STATUS Status;\r
+ EFI_COMMON_SECTION_HEADER *Section;\r
+\r
+ Section = (EFI_COMMON_SECTION_HEADER *) (DxeIplFileHeader + 1);\r
+\r
+ while ((Section->Type != EFI_SECTION_PE32) && (Section->Type != EFI_SECTION_TE)) {\r
+ SectionLength = *(UINT32 *) (Section->Size) & 0x00ffffff;\r
+ OccupiedSectionLength = GetOccupiedSize (SectionLength, 4);\r
+ Section = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) Section + OccupiedSectionLength);\r
+ }\r
+ \r
+ //\r
+ // Relocate DxeIpl into memory by using loadfile service\r
+ //\r
+ Status = PeiLoadx64File (\r
+ PeiEfiPeiPeCoffLoader,\r
+ (VOID *) (Section + 1),\r
+ EfiBootServicesData,\r
+ &DxeIplAddress,\r
+ &DxeIplSize,\r
+ &DxeIplEntryPoint\r
+ );\r
+ \r
+ if (Status == EFI_SUCCESS) {\r
+ //\r
+ // Install PeiInMemory to indicate the Dxeipl is shadowed\r
+ //\r
+ Status = PeiServicesInstallPpi (&mPpiPeiInMemory);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = ((EFI_PEIM_ENTRY_POINT) (UINTN) DxeIplEntryPoint) (DxeIplFileHeader, GetPeiServicesTablePointer());\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+DxeIplLoadFile (\r
+ IN EFI_PEI_FV_FILE_LOADER_PPI *This,\r
+ IN EFI_FFS_FILE_HEADER *FfsHeader,\r
+ OUT EFI_PHYSICAL_ADDRESS *ImageAddress,\r
+ OUT UINT64 *ImageSize,\r
+ OUT EFI_PHYSICAL_ADDRESS *EntryPoint\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Given a pointer to an FFS file containing a PE32 image, get the\r
+ information on the PE32 image, and then "load" it so that it\r
+ can be executed.\r
+\r
+Arguments:\r
+\r
+ This - pointer to our file loader protocol\r
+ FfsHeader - pointer to the FFS file header of the FFS file that\r
+ contains the PE32 image we want to load\r
+ ImageAddress - returned address where the PE32 image is loaded\r
+ ImageSize - returned size of the loaded PE32 image\r
+ EntryPoint - entry point to the loaded PE32 image\r
+\r
+Returns:\r
+ \r
+ EFI_SUCCESS - The FFS file was successfully loaded.\r
+ EFI_ERROR - Unable to load the FFS file.\r
+\r
+--*/\r
+{\r
+ EFI_PEI_PE_COFF_LOADER_PROTOCOL *PeiEfiPeiPeCoffLoader;\r
+ EFI_STATUS Status;\r
+ VOID *Pe32Data;\r
+\r
+ Pe32Data = NULL;\r
+ PeiEfiPeiPeCoffLoader = (EFI_PEI_PE_COFF_LOADER_PROTOCOL *)GetPeCoffLoaderProtocol ();\r
+\r
+ //\r
+ // Preprocess the FFS file to get a pointer to the PE32 information\r
+ // in the enclosed PE32 image.\r
+ //\r
+ Status = PeiProcessFile (\r
+ EFI_SECTION_PE32,\r
+ &FfsHeader,\r
+ &Pe32Data\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // Load the PE image from the FFS file\r
+ //\r
+ Status = PeiLoadx64File (\r
+ PeiEfiPeiPeCoffLoader,\r
+ Pe32Data,\r
+ EfiBootServicesData,\r
+ ImageAddress,\r
+ ImageSize,\r
+ EntryPoint\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+PeiProcessFile (\r
+ IN UINT16 SectionType,\r
+ IN OUT EFI_FFS_FILE_HEADER **RealFfsFileHeader,\r
+ OUT VOID **Pe32Data\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+Arguments:\r
+\r
+ SectionType - The type of section in the FFS file to process.\r
+\r
+ FfsFileHeader - Pointer to the FFS file to process, looking for the\r
+ specified SectionType\r
+\r
+ Pe32Data - returned pointer to the start of the PE32 image found\r
+ in the FFS file.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - found the PE32 section in the FFS file\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ VOID *SectionData;\r
+ DECOMPRESS_LIBRARY *DecompressLibrary;\r
+ UINT8 *DstBuffer;\r
+ UINT8 *ScratchBuffer;\r
+ UINT32 DstBufferSize;\r
+ UINT32 ScratchBufferSize;\r
+ EFI_COMMON_SECTION_HEADER *CmpSection;\r
+ UINTN CmpSectionLength;\r
+ UINTN OccupiedCmpSectionLength;\r
+ VOID *CmpFileData;\r
+ UINTN CmpFileSize;\r
+ EFI_COMMON_SECTION_HEADER *Section;\r
+ UINTN SectionLength;\r
+ UINTN OccupiedSectionLength;\r
+ UINT64 FileSize;\r
+ EFI_GUID_DEFINED_SECTION *GuidedSectionHeader;\r
+ UINT32 AuthenticationStatus;\r
+ EFI_PEI_SECTION_EXTRACTION_PPI *SectionExtract;\r
+ UINT32 BufferSize;\r
+ UINT8 *Buffer;\r
+ EFI_PEI_SECURITY_PPI *Security;\r
+ BOOLEAN StartCrisisRecovery;\r
+ EFI_GUID TempGuid;\r
+ EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r
+ EFI_COMPRESSION_SECTION *CompressionSection;\r
+ EFI_FFS_FILE_HEADER *FfsFileHeader;\r
+ \r
+ FfsFileHeader = *RealFfsFileHeader;\r
+\r
+ Status = PeiServicesFfsFindSectionData (\r
+ EFI_SECTION_COMPRESSION,\r
+ FfsFileHeader,\r
+ &SectionData\r
+ );\r
+\r
+ //\r
+ // Upon finding a DXE Core file, see if there is first a compression section\r
+ //\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Yes, there is a compression section, so extract the contents\r
+ // Decompress the image here\r
+ //\r
+ Section = (EFI_COMMON_SECTION_HEADER *) (UINTN) (VOID *) ((UINT8 *) (FfsFileHeader) + (UINTN) sizeof (EFI_FFS_FILE_HEADER));\r
+\r
+ do {\r
+ SectionLength = *(UINT32 *) (Section->Size) & 0x00ffffff;\r
+ OccupiedSectionLength = GetOccupiedSize (SectionLength, 4);\r
+\r
+ //\r
+ // Was the DXE Core file encapsulated in a GUID'd section?\r
+ //\r
+ if (Section->Type == EFI_SECTION_GUID_DEFINED) {\r
+ //\r
+ // Locate the GUID'd Section Extractor\r
+ //\r
+ GuidedSectionHeader = (VOID *) (Section + 1);\r
+\r
+ //\r
+ // This following code constitutes the addition of the security model\r
+ // to the DXE IPL.\r
+ //\r
+ //\r
+ // Set a default authenticatino state\r
+ //\r
+ AuthenticationStatus = 0;\r
+\r
+ Status = PeiServicesLocatePpi (\r
+ &gEfiPeiSectionExtractionPpiGuid,\r
+ 0,\r
+ NULL,\r
+ (VOID **)&SectionExtract\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // Verify Authentication State\r
+ //\r
+ CopyMem (&TempGuid, Section + 1, sizeof (EFI_GUID));\r
+\r
+ Status = SectionExtract->PeiGetSection (\r
+ GetPeiServicesTablePointer(),\r
+ SectionExtract,\r
+ (EFI_SECTION_TYPE *) &SectionType,\r
+ &TempGuid,\r
+ 0,\r
+ (VOID **) &Buffer,\r
+ &BufferSize,\r
+ &AuthenticationStatus\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // If not ask the Security PPI, if exists, for disposition\r
+ //\r
+ //\r
+ Status = PeiServicesLocatePpi (\r
+ &gEfiPeiSecurityPpiGuid,\r
+ 0,\r
+ NULL,\r
+ (VOID **)&Security\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = Security->AuthenticationState (\r
+ GetPeiServicesTablePointer(),\r
+ (struct _EFI_PEI_SECURITY_PPI *) Security,\r
+ AuthenticationStatus,\r
+ FfsFileHeader,\r
+ &StartCrisisRecovery\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // If there is a security violation, report to caller and have\r
+ // the upper-level logic possible engender a crisis recovery\r
+ //\r
+ if (StartCrisisRecovery) {\r
+ return EFI_SECURITY_VIOLATION;\r
+ }\r
+ }\r
+\r
+ if (Section->Type == EFI_SECTION_PE32) {\r
+ //\r
+ // This is what we want\r
+ //\r
+ *Pe32Data = (VOID *) (Section + 1);\r
+ return EFI_SUCCESS;\r
+ } else if (Section->Type == EFI_SECTION_COMPRESSION) {\r
+ //\r
+ // This is a compression set, expand it\r
+ //\r
+ CompressionSection = (EFI_COMPRESSION_SECTION *) Section;\r
+\r
+ switch (CompressionSection->CompressionType) {\r
+ case EFI_STANDARD_COMPRESSION:\r
+ DecompressLibrary = &gTianoDecompress;\r
+ break;\r
+\r
+ case EFI_CUSTOMIZED_COMPRESSION:\r
+ //\r
+ // Load user customized compression protocol.\r
+ //\r
+ DecompressLibrary = &gCustomDecompress;\r
+ break;\r
+\r
+ case EFI_NOT_COMPRESSED:\r
+ default:\r
+ //\r
+ // Need to support not compressed file\r
+ //\r
+ ASSERT_EFI_ERROR (Status);\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ Status = DecompressLibrary->GetInfo (\r
+ (UINT8 *) ((EFI_COMPRESSION_SECTION *) Section + 1),\r
+ (UINT32) SectionLength - sizeof (EFI_COMPRESSION_SECTION),\r
+ &DstBufferSize,\r
+ &ScratchBufferSize\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // GetInfo failed\r
+ //\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ //\r
+ // Allocate scratch buffer\r
+ //\r
+ ScratchBuffer = AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));\r
+ if (ScratchBuffer == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ //\r
+ // Allocate destination buffer\r
+ //\r
+ DstBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize));\r
+ if (DstBuffer == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ //\r
+ // Call decompress function\r
+ //\r
+ Status = DecompressLibrary->Decompress (\r
+ (CHAR8 *) ((EFI_COMPRESSION_SECTION *) Section + 1),\r
+ DstBuffer,\r
+ ScratchBuffer\r
+ );\r
+\r
+ CmpSection = (EFI_COMMON_SECTION_HEADER *) DstBuffer;\r
+ if (CmpSection->Type == EFI_SECTION_RAW) {\r
+ //\r
+ // Skip the section header and\r
+ // adjust the pointer alignment to 16\r
+ //\r
+ FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (DstBuffer + 16);\r
+\r
+ if (FvHeader->Signature == EFI_FVH_SIGNATURE) {\r
+ FfsFileHeader = NULL;\r
+ BuildFvHob ((EFI_PHYSICAL_ADDRESS) (UINTN) FvHeader, FvHeader->FvLength);\r
+ Status = PeiServicesFfsFindNextFile (\r
+ EFI_FV_FILETYPE_DXE_CORE,\r
+ FvHeader,\r
+ &FfsFileHeader\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ //\r
+ // Reture the FfsHeader that contain Pe32Data.\r
+ //\r
+ *RealFfsFileHeader = FfsFileHeader;\r
+ return PeiProcessFile (SectionType, RealFfsFileHeader, Pe32Data);\r
+ }\r
+ }\r
+ //\r
+ // Decompress successfully.\r
+ // Loop the decompressed data searching for expected section.\r
+ //\r
+ CmpFileData = (VOID *) DstBuffer;\r
+ CmpFileSize = DstBufferSize;\r
+ do {\r
+ CmpSectionLength = *(UINT32 *) (CmpSection->Size) & 0x00ffffff;\r
+ if (CmpSection->Type == EFI_SECTION_PE32) {\r
+ //\r
+ // This is what we want\r
+ //\r
+ *Pe32Data = (VOID *) (CmpSection + 1);\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ OccupiedCmpSectionLength = GetOccupiedSize (CmpSectionLength, 4);\r
+ CmpSection = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) CmpSection + OccupiedCmpSectionLength);\r
+ } while (CmpSection->Type != 0 && (UINTN) ((UINT8 *) CmpSection - (UINT8 *) CmpFileData) < CmpFileSize);\r
+ }\r
+\r
+ Section = (EFI_COMMON_SECTION_HEADER *) ((UINT8 *) Section + OccupiedSectionLength);\r
+ FileSize = FfsFileHeader->Size[0] & 0xFF;\r
+ FileSize += (FfsFileHeader->Size[1] << 8) & 0xFF00;\r
+ FileSize += (FfsFileHeader->Size[2] << 16) & 0xFF0000;\r
+ FileSize &= 0x00FFFFFF;\r
+ } while (Section->Type != 0 && (UINTN) ((UINT8 *) Section - (UINT8 *) FfsFileHeader) < FileSize);\r
+\r
+ //\r
+ // End of the decompression activity\r
+ //\r
+ } else {\r
+\r
+ Status = PeiServicesFfsFindSectionData (\r
+ EFI_SECTION_PE32,\r
+ FfsFileHeader,\r
+ &SectionData\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ Status = PeiServicesFfsFindSectionData (\r
+ EFI_SECTION_TE,\r
+ FfsFileHeader,\r
+ &SectionData\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+ }\r
+\r
+ *Pe32Data = SectionData;\r
+\r
+ return EFI_SUCCESS;\r
+}
\ No newline at end of file
projects / mirror_edk2.git / blobdiff