/** @file\r
Pei Core Load Image Support\r
- \r
-Copyright (c) 2006 - 2010, 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
+Copyright (c) 2006 - 2010, 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
**/\r
\r
\r
return EFI_SUCCESS;\r
}\r
+/**\r
+ To check memory usage bit map arry to figure out if the memory range the image will be loaded in is available or not. If \r
+ memory range is avaliable, the function will mark the correponding bits to 1 which indicates the memory range is used.\r
+ The function is only invoked when load modules at fixed address feature is enabled. \r
+ \r
+ @param Private Pointer to the private data passed in from caller\r
+ @param ImageBase The base addres the image will be loaded at.\r
+ @param ImageSize The size of the image\r
+ \r
+ @retval EFI_SUCCESS The memory range the image will be loaded in is available\r
+ @retval EFI_NOT_FOUND The memory range the image will be loaded in is not available\r
+**/\r
+EFI_STATUS\r
+CheckAndMarkFixLoadingMemoryUsageBitMap (\r
+ IN PEI_CORE_INSTANCE *Private,\r
+ IN EFI_PHYSICAL_ADDRESS ImageBase,\r
+ IN UINT32 ImageSize\r
+ )\r
+{\r
+ UINT32 DxeCodePageNumber;\r
+ UINT64 ReservedCodeSize;\r
+ EFI_PHYSICAL_ADDRESS PeiCodeBase;\r
+ UINT32 BaseOffsetPageNumber;\r
+ UINT32 TopOffsetPageNumber;\r
+ UINT32 Index;\r
+ UINT64 *MemoryUsageBitMap;\r
+ \r
+\r
+ //\r
+ // The reserved code range includes RuntimeCodePage range, Boot time code range and PEI code range.\r
+ //\r
+ DxeCodePageNumber = PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);\r
+ DxeCodePageNumber += PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);\r
+ ReservedCodeSize = EFI_PAGES_TO_SIZE(DxeCodePageNumber + PcdGet32(PcdLoadFixAddressPeiCodePageNumber));\r
+ PeiCodeBase = Private->LoadModuleAtFixAddressTopAddress - ReservedCodeSize;\r
+ \r
+ //\r
+ // Test the memory range for loading the image in the PEI code range.\r
+ //\r
+ if ((Private->LoadModuleAtFixAddressTopAddress - EFI_PAGES_TO_SIZE(DxeCodePageNumber)) < (ImageBase + ImageSize) ||\r
+ (PeiCodeBase > ImageBase)) { \r
+ return EFI_NOT_FOUND; \r
+ }\r
+ \r
+ //\r
+ // Test if the memory is avalaible or not.\r
+ //\r
+ MemoryUsageBitMap = Private->PeiCodeMemoryRangeUsageBitMap; \r
+ BaseOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase - PeiCodeBase));\r
+ TopOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase + ImageSize - PeiCodeBase));\r
+ for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {\r
+ if ((MemoryUsageBitMap[Index / 64] & LShiftU64(1, (Index % 64))) != 0) {\r
+ //\r
+ // This page is already used.\r
+ //\r
+ return EFI_NOT_FOUND; \r
+ }\r
+ }\r
+ \r
+ //\r
+ // Being here means the memory range is available. So mark the bits for the memory range\r
+ // \r
+ for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {\r
+ MemoryUsageBitMap[Index / 64] |= LShiftU64(1, (Index % 64));\r
+ }\r
+ return EFI_SUCCESS; \r
+}\r
+/**\r
+\r
+ Get the fixed loadding address from image header assigned by build tool. This function only be called\r
+ when Loading module at Fixed address feature enabled.\r
+\r
+ @param ImageContext Pointer to the image context structure that describes the PE/COFF\r
+ image that needs to be examined by this function.\r
+ @param Private Pointer to the private data passed in from caller\r
+\r
+ @retval EFI_SUCCESS An fixed loading address is assigned to this image by build tools .\r
+ @retval EFI_NOT_FOUND The image has no assigned fixed loadding address.\r
\r
+**/\r
+EFI_STATUS\r
+GetPeCoffImageFixLoadingAssignedAddress(\r
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
+ IN PEI_CORE_INSTANCE *Private\r
+ )\r
+{\r
+ UINTN SectionHeaderOffset;\r
+ EFI_STATUS Status;\r
+ EFI_IMAGE_SECTION_HEADER SectionHeader;\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *ImgHdr;\r
+ EFI_PHYSICAL_ADDRESS FixLoaddingAddress;\r
+ UINT16 Index;\r
+ UINTN Size;\r
+ UINT16 NumberOfSections;\r
+ UINT64 ValueInSectionHeader;\r
+ \r
+\r
+ FixLoaddingAddress = 0;\r
+ Status = EFI_NOT_FOUND;\r
+\r
+ //\r
+ // Get PeHeader pointer\r
+ //\r
+ ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((CHAR8* )ImageContext->Handle + ImageContext->PeCoffHeaderOffset);\r
+ if (ImageContext->IsTeImage) {\r
+ //\r
+ // for TE image, the fix loadding address is saved in first section header that doesn't point\r
+ // to code section.\r
+ //\r
+ SectionHeaderOffset = sizeof (EFI_TE_IMAGE_HEADER);\r
+ NumberOfSections = ImgHdr->Te.NumberOfSections;\r
+ } else {\r
+ SectionHeaderOffset = (UINTN)(\r
+ ImageContext->PeCoffHeaderOffset +\r
+ sizeof (UINT32) +\r
+ sizeof (EFI_IMAGE_FILE_HEADER) +\r
+ ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader\r
+ );\r
+ NumberOfSections = ImgHdr->Pe32.FileHeader.NumberOfSections;\r
+ }\r
+ //\r
+ // Get base address from the first section header that doesn't point to code section.\r
+ //\r
+ for (Index = 0; Index < NumberOfSections; Index++) {\r
+ //\r
+ // Read section header from file\r
+ //\r
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ SectionHeaderOffset,\r
+ &Size,\r
+ &SectionHeader\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = EFI_NOT_FOUND;\r
+\r
+ if ((SectionHeader.Characteristics & EFI_IMAGE_SCN_CNT_CODE) == 0) {\r
+ //\r
+ // Build tool will save the address in PointerToRelocations & PointerToLineNumbers fields in the first section header\r
+ // that doesn't point to code section in image header, as well as ImageBase field of image header. A notable thing is\r
+ // that for PEIM, the value in ImageBase field may not be equal to the value in PointerToRelocations & PointerToLineNumbers because\r
+ // for XIP PEIM, ImageBase field holds the image base address running on the Flash. And PointerToRelocations & PointerToLineNumbers\r
+ // hold the image base address when it is shadow to the memory. And there is an assumption that when the feature is enabled, if a\r
+ // module is assigned a loading address by tools, PointerToRelocations & PointerToLineNumbers fields should NOT be Zero, or\r
+ // else, these 2 fileds should be set to Zero\r
+ //\r
+ ValueInSectionHeader = ReadUnaligned64((UINT64*)&SectionHeader.PointerToRelocations);\r
+ if (ValueInSectionHeader != 0) {\r
+ //\r
+ // Found first section header that doesn't point to code section.\r
+ //\r
+ if ((INT64)FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) > 0) {\r
+ //\r
+ // When LMFA feature is configured as Load Module at Fixed Absolute Address mode, PointerToRelocations & PointerToLineNumbers field\r
+ // hold the absolute address of image base runing in memory\r
+ //\r
+ FixLoaddingAddress = ValueInSectionHeader;\r
+ } else {\r
+ //\r
+ // When LMFA feature is configured as Load Module at Fixed offset mode, PointerToRelocations & PointerToLineNumbers field\r
+ // hold the offset relative to a platform-specific top address.\r
+ //\r
+ FixLoaddingAddress = (EFI_PHYSICAL_ADDRESS)(Private->LoadModuleAtFixAddressTopAddress + (INT64)ValueInSectionHeader);\r
+ }\r
+ //\r
+ // Check if the memory range is avaliable.\r
+ //\r
+ Status = CheckAndMarkFixLoadingMemoryUsageBitMap (Private, FixLoaddingAddress, (UINT32) ImageContext->ImageSize);\r
+ if (!EFI_ERROR(Status)) {\r
+ //\r
+ // The assigned address is valid. Return the specified loadding address\r
+ //\r
+ ImageContext->ImageAddress = FixLoaddingAddress;\r
+ }\r
+ }\r
+ break;\r
+ }\r
+ SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ }\r
+ DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED INFO: Loading module at fixed address %lx. Status= %r \n", FixLoaddingAddress, Status));\r
+ return Status;\r
+}\r
/**\r
\r
Loads and relocates a PE/COFF image into memory.\r
// When Image has no reloc section, it can't be relocated into memory.\r
//\r
if (ImageContext.RelocationsStripped && (Private->PeiMemoryInstalled) && (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
- DEBUG ((EFI_D_INFO, "The image at 0x%08x without reloc section can't be loaded into memory\n", (UINTN) Pe32Data));\r
+ DEBUG ((EFI_D_INFO|EFI_D_LOAD, "The image at 0x%08x without reloc section can't be loaded into memory\n", (UINTN) Pe32Data));\r
}\r
\r
//\r
// Set default base address to current image address.\r
//\r
ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Pe32Data;\r
- \r
+\r
//\r
// Allocate Memory for the image when memory is ready, boot mode is not S3, and image is relocatable.\r
//\r
if ((!ImageContext.RelocationsStripped) && (Private->PeiMemoryInstalled) && (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
- ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) AllocatePages (EFI_SIZE_TO_PAGES ((UINT32) ImageContext.ImageSize));\r
+ if (FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) != 0) {\r
+ Status = GetPeCoffImageFixLoadingAssignedAddress(&ImageContext, Private);\r
+ if (EFI_ERROR (Status)){\r
+ DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED ERROR: Failed to load module at fixed address. \n"));\r
+ //\r
+ // The PEIM is not assiged valid address, try to allocate page to load it.\r
+ //\r
+ ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) AllocatePages (EFI_SIZE_TO_PAGES ((UINT32) ImageContext.ImageSize));\r
+ }\r
+ } else {\r
+ ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) AllocatePages (EFI_SIZE_TO_PAGES ((UINT32) ImageContext.ImageSize));\r
+ }\r
ASSERT (ImageContext.ImageAddress != 0);\r
if (ImageContext.ImageAddress == 0) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
- \r
+\r
//\r
// Skip the reserved space for the stripped PeHeader when load TeImage into memory.\r
//\r
if (ImageContext.IsTeImage) {\r
- ImageContext.ImageAddress = ImageContext.ImageAddress + \r
+ ImageContext.ImageAddress = ImageContext.ImageAddress +\r
((EFI_TE_IMAGE_HEADER *) Pe32Data)->StrippedSize -\r
sizeof (EFI_TE_IMAGE_HEADER);\r
}\r
}\r
\r
/**\r
- Loads a PEIM into memory for subsequent execution. If there are compressed \r
- images or images that need to be relocated into memory for performance reasons, \r
+ Loads a PEIM into memory for subsequent execution. If there are compressed\r
+ images or images that need to be relocated into memory for performance reasons,\r
this service performs that transformation.\r
\r
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r
}\r
\r
//\r
- // Try to find a first exe section (if PcdPeiCoreImageLoaderSearchTeSectionFirst \r
+ // Try to find a first exe section (if PcdPeiCoreImageLoaderSearchTeSectionFirst\r
// is true, TE will be searched first).\r
//\r
Status = PeiServicesFfsFindSectionData (\r
return Status;\r
}\r
}\r
- \r
+\r
//\r
// If memory is installed, perform the shadow operations\r
//\r
//\r
Pe32Data = (VOID *) ((UINTN) ImageAddress);\r
*EntryPoint = ImageEntryPoint;\r
- \r
+\r
Machine = PeCoffLoaderGetMachineType (Pe32Data);\r
- \r
+\r
if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Machine)) {\r
if (!EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Machine)) {\r
return EFI_UNSUPPORTED;\r
if (ImageSizeArg != NULL) {\r
*ImageSizeArg = ImageSize;\r
}\r
- \r
+\r
DEBUG_CODE_BEGIN ();\r
CHAR8 *AsciiString;\r
CHAR8 AsciiBuffer[512];\r
//\r
DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Loading PEIM at 0x%11p EntryPoint=0x%11p ", (VOID *)(UINTN)ImageAddress, (VOID *)(UINTN)(*(UINT64 *)(UINTN)*EntryPoint)));\r
}\r
- \r
+\r
//\r
// Print Module Name by PeImage PDB file name.\r
//\r
AsciiString = PeCoffLoaderGetPdbPointer (Pe32Data);\r
- \r
+\r
if (AsciiString != NULL) {\r
for (Index = (INT32) AsciiStrLen (AsciiString) - 1; Index >= 0; Index --) {\r
if (AsciiString[Index] == '\\') {\r
\r
/**\r
Routine to load image file for subsequent execution by LoadFile Ppi.\r
- If any LoadFile Ppi is not found, the build-in support function for the PE32+/TE \r
+ If any LoadFile Ppi is not found, the build-in support function for the PE32+/TE\r
XIP image format is used.\r
\r
@param PeiServices - An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r
);\r
if (!EFI_ERROR (PpiStatus)) {\r
Status = LoadFile->LoadFile (\r
- LoadFile, \r
- FileHandle, \r
- &ImageAddress, \r
+ LoadFile,\r
+ FileHandle,\r
+ &ImageAddress,\r
&ImageSize,\r
EntryPoint,\r
AuthenticationState\r
PeiServicesInstallPpi (PrivateData->XipLoadFile);\r
} else {\r
//\r
- // 2nd time we are running from memory so replace the XIP version with the \r
- // new memory version. \r
+ // 2nd time we are running from memory so replace the XIP version with the\r
+ // new memory version.\r
//\r
- PeiServicesReInstallPpi (PrivateData->XipLoadFile, &gPpiLoadFilePpiList); \r
+ PeiServicesReInstallPpi (PrivateData->XipLoadFile, &gPpiLoadFilePpiList);\r
}\r
}\r
\r
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