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/** @file
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
FlashMap.c
Abstract:
Build GUIDed HOBs for platform specific flash map.
--*/
#include "Efi.h"
#include "Pei.h"
#include "PeiLib.h"
#include "PeiLib.h"
#include "EfiFlashMap.h"
#include EFI_PROTOCOL_CONSUMER (FirmwareVolumeBlock)
#include EFI_GUID_DEFINITION (FlashMapHob)
#include EFI_GUID_DEFINITION (SystemNvDataGuid)
#include EFI_GUID_DEFINITION (FirmwareFileSystem)
EFI_GUID mFvBlockGuid = EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID;
EFI_GUID mFfsGuid = EFI_FIRMWARE_FILE_SYSTEM_GUID;
EFI_GUID mSystemDataGuid = EFI_SYSTEM_NV_DATA_HOB_GUID;
static EFI_FLASH_AREA_DATA mFlashAreaData[] = {
//
// Variable area
//
{ FixedPcdGet32 (PcdFlashNvStorageVariableBase),
FixedPcdGet32 (PcdFlashNvStorageVariableSize),
EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
EFI_FLASH_AREA_EFI_VARIABLES },
//
// Boot block 2nd part
//
{ FixedPcdGet32 (PcdFlashFvRecovery2Base),
FixedPcdGet32 (PcdFlashFvRecovery2Size),
EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
EFI_FLASH_AREA_FTW_BACKUP },
//
// Recovery FV
//
{ FixedPcdGet32 (PcdFlashFvRecoveryBase),
FixedPcdGet32 (PcdFlashFvRecoverySize),
EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
EFI_FLASH_AREA_RECOVERY_BIOS },
//
// Main FV
//
{ FixedPcdGet32 (PcdFlashFvMainBase),
FixedPcdGet32 (PcdFlashFvMainSize),
EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
EFI_FLASH_AREA_MAIN_BIOS }
};
#define NUM_FLASH_AREA_DATA (sizeof (mFlashAreaData) / sizeof (mFlashAreaData[0]))
/**
Build GUID HOBs for platform specific flash map.
@param FfsHeader Pointer this FFS file header.
@param PeiServices General purpose services available to every PEIM.
@retval EFI_SUCCESS Guid HOBs for platform flash map is built.
@retval Otherwise Failed to build the Guid HOB data.
**/
EFI_STATUS
PeimInitializeFlashMap (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
{
UINTN Index;
EFI_FLASH_AREA_HOB_DATA FlashHobData;
//
// Build flash area entries as GUIDed HOBs.
//
for (Index = 0; Index < NUM_FLASH_AREA_DATA; Index++) {
ZeroMem(&FlashHobData, sizeof (EFI_FLASH_AREA_HOB_DATA));
FlashHobData.AreaType = mFlashAreaData[Index].AreaType;
FlashHobData.NumberOfEntries = 1;
FlashHobData.SubAreaData.Attributes = mFlashAreaData[Index].Attributes;
FlashHobData.SubAreaData.Base = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Base;
FlashHobData.SubAreaData.Length = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Length;
switch (FlashHobData.AreaType) {
case EFI_FLASH_AREA_RECOVERY_BIOS:
case EFI_FLASH_AREA_MAIN_BIOS:
CopyMem (
&FlashHobData.AreaTypeGuid,
&mFfsGuid,
sizeof (EFI_GUID)
);
CopyMem (
&FlashHobData.SubAreaData.FileSystem,
&mFvBlockGuid,
sizeof (EFI_GUID)
);
break;
case EFI_FLASH_AREA_GUID_DEFINED:
CopyMem (
&FlashHobData.AreaTypeGuid,
&mSystemDataGuid,
sizeof (EFI_GUID)
);
CopyMem (
&FlashHobData.SubAreaData.FileSystem,
&mFvBlockGuid,
sizeof (EFI_GUID)
);
break;
default:
break;
}
PeiBuildHobGuidData(PeiServices,
&gEfiFlashMapHobGuid,
&FlashHobData,
sizeof (EFI_FLASH_AREA_HOB_DATA)
);
}
return EFI_SUCCESS;
}
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