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/** @file
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
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 (ARRAY_SIZE (mFlashAreaData))
/**
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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