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//*************************************************************************
//*************************************************************************
//** **
//** (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 **
//** **
//*************************************************************************
//*************************************************************************
|
