diff options
Diffstat (limited to 'Core/EM/PeiRamBoot/PeiRamBootFvHook.c')
| -rw-r--r-- | Core/EM/PeiRamBoot/PeiRamBootFvHook.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/Core/EM/PeiRamBoot/PeiRamBootFvHook.c b/Core/EM/PeiRamBoot/PeiRamBootFvHook.c new file mode 100644 index 0000000..bab5415 --- /dev/null +++ b/Core/EM/PeiRamBoot/PeiRamBootFvHook.c @@ -0,0 +1,184 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2012, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* + +//********************************************************************** +// $Header: /Alaska/SOURCE/Modules/PEI Ram Boot/PeiRamBootFvHook.c 4 1/16/13 6:33a Calvinchen $ +// +// $Revision: 4 $ +// +// $Date: 1/16/13 6:33a $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/PEI Ram Boot/PeiRamBootFvHook.c $ +// +// 4 1/16/13 6:33a Calvinchen +// Update Header. +// +// 3 8/08/12 4:25a Calvinchen +// 1. Changed for ReportFv2.c by Artem's suggestion. +// 2. Fixed System hangs if Memory Mapping Changed with warm boot. +// +// 2 7/18/12 3:41a Calvinchen +// +// 1 7/18/12 3:33a Calvinchen +// [TAG] EIPNone +// [Category] New Feature +// [Description] Added support for Nested Firmware Volume. +// +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: PeiRamBootFvHook.c +// +// Description: Hook File for Report Firmware Volume. +// +//<AMI_FHDR_END> +//********************************************************************** +//---------------------------------------------------------------------------- +// Includes +// Statements that include other files +#include <RomLayout.h> +#include <Token.h> +#include <AmiPeiLib.h> +#include <AmiCspLib.h> +#include <PeiRamBoot.h> +//---------------------------------------------------------------------------- +// Function Externs +extern +EFI_STATUS PublishFv( + IN EFI_PEI_SERVICES **PeiServices, + IN ROM_AREA *Area, + IN BOOLEAN Nested +); +extern +EFI_STATUS CreateFvHob2( + IN EFI_PEI_SERVICES **PeiServices, + IN ROM_AREA *Area, + IN EFI_GUID *FvName, + IN EFI_GUID *FfsName +); +extern +EFI_STATUS CreateFvInfoPpi( + IN EFI_PEI_SERVICES **PeiServices, + IN ROM_AREA *Area, + IN EFI_GUID *FvName OPTIONAL, + IN EFI_GUID *FfsName OPTIONAL +); +//---------------------------------------------------------------------------- +// Local prototypes + +//---------------------------------------------------------------------------- +// Local Variables + +//---------------------------------------------------------------------------- +// Function Definitions +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: PeiRamBootNestedFvPublishing +// +// Description: +// +// Input: EFI_PEI_SERVICES** - PeiServices +// ROM_AREA* - Area +// +// Output: EFI_STATUS +// ROM_AREA* - Area +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +PeiRamBootNestedFvPublishing ( + IN EFI_PEI_SERVICES **PeiServices, + IN OUT ROM_AREA *Area, + OUT EFI_FIRMWARE_VOLUME_HEADER **Fv, + OUT EFI_FIRMWARE_VOLUME_HEADER **NewFv, + OUT EFI_FFS_FILE_HEADER **Nfv +) +{ + VOID *p, *p2; + static UINT8 NestedFvIndex = 0; + INTN Result; + EFI_STATUS Status; + EFI_BOOT_MODE BootMode; + EFI_GUID HobRomImageGuid = ROM_IMAGE_MEMORY_HOB_GUID; + EFI_PHYSICAL_ADDRESS NestedFvBuffer = 0, NestedFvInMem = 0, TopOfMemory = 0; + UINT32 NestedFvLength = 0; + EFI_FIRMWARE_VOLUME_HEADER *pFv; + + Status = (*PeiServices)->GetBootMode (PeiServices, &BootMode); + if (EFI_ERROR(Status) || \ + (BootMode == BOOT_IN_RECOVERY_MODE) || \ + (BootMode == BOOT_ON_FLASH_UPDATE)) return EFI_UNSUPPORTED; + + for ((*PeiServices)->GetHobList(PeiServices,&p); \ + !(FindNextHobByType(EFI_HOB_TYPE_GUID_EXTENSION, &p)); ) { + Result = guidcmp(&((EFI_HOB_GUID_TYPE*)p)->Name, &HobRomImageGuid); + if (!Result) break; + } + if (Result) return EFI_UNSUPPORTED; + if (((HOB_ROM_IMAGE*)p)->HobValid == 0) { + // Try to decompress the Nested FV from memory if possible + UINT8 i; + ((HOB_ROM_IMAGE*)p)->NestedFvValid = 0; + for (i = 0; i < ((HOB_ROM_IMAGE*)p)->NumOfFv; i++) { + if ((Area->Address == ((HOB_ROM_IMAGE*)p)->FvInfo[i].FvAddress) && \ + (((HOB_ROM_IMAGE*)p)->FvInfo[i].FvMemReady == TRUE)) + *Fv = (EFI_FIRMWARE_VOLUME_HEADER*)((HOB_ROM_IMAGE*)p)->FvInfo[i].MemAddress; + } + return EFI_UNSUPPORTED; + } + pFv = (EFI_FIRMWARE_VOLUME_HEADER*)Area->Address; + NestedFvLength = ((HOB_ROM_IMAGE*)p)->NestedFvInfo[NestedFvIndex].FvLength; + NestedFvInMem = (EFI_PHYSICAL_ADDRESS)((HOB_ROM_IMAGE*)p)->NestedFvInfo[NestedFvIndex++].MemAddress; + // check whether NestFv memory is valid. + for ((*PeiServices)->GetHobList(PeiServices,&p2); \ + !(FindNextHobByType(EFI_HOB_TYPE_MEMORY_ALLOCATION, &p2)); ) { + TopOfMemory = ((EFI_HOB_MEMORY_ALLOCATION*)p2)->AllocDescriptor.MemoryBaseAddress; + } + if (TopOfMemory != ((NestedFvInMem & (EFI_PHYSICAL_ADDRESS)~0xfff) + NestedFvLength + 0x1000)) { + // Memory Mapping changed, decompress Nested FV and re-collect Nested FV information + ((HOB_ROM_IMAGE*)p)->NestedFvValid = 0; + return EFI_UNSUPPORTED; + } + + Status = (*PeiServices)->FfsFindNextFile (PeiServices, \ + EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE, pFv, Nfv); + if(EFI_ERROR(Status)) return Status; + + Status = (*PeiServices)->AllocatePages(PeiServices, \ + EfiRuntimeServicesData, (NestedFvLength >> 12) + 1, &NestedFvBuffer); + if (EFI_ERROR(Status)) return EFI_UNSUPPORTED; + if ((NestedFvInMem & (EFI_PHYSICAL_ADDRESS)~0xfff) != NestedFvBuffer) { + return EFI_UNSUPPORTED; + } + *NewFv = (EFI_FIRMWARE_VOLUME_HEADER*)(EFI_PHYSICAL_ADDRESS)NestedFvInMem; + ((HOB_ROM_IMAGE*)p)->NestedFvValid = 1; + return EFI_SUCCESS; +} +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2012, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//*************************************************************************
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