mirror of https://github.com/acidanthera/audk.git
144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/** @file
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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FlashMap.c
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Abstract:
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Build GUIDed HOBs for platform specific flash map.
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--*/
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#include "Efi.h"
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#include "Pei.h"
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#include "PeiLib.h"
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#include "PeiLib.h"
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#include "EfiFlashMap.h"
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#include EFI_PROTOCOL_CONSUMER (FirmwareVolumeBlock)
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#include EFI_GUID_DEFINITION (FlashMapHob)
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#include EFI_GUID_DEFINITION (SystemNvDataGuid)
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#include EFI_GUID_DEFINITION (FirmwareFileSystem)
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EFI_GUID mFvBlockGuid = EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID;
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EFI_GUID mFfsGuid = EFI_FIRMWARE_FILE_SYSTEM_GUID;
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EFI_GUID mSystemDataGuid = EFI_SYSTEM_NV_DATA_HOB_GUID;
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static EFI_FLASH_AREA_DATA mFlashAreaData[] = {
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//
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// Variable area
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//
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{ FixedPcdGet32 (PcdFlashNvStorageVariableBase),
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FixedPcdGet32 (PcdFlashNvStorageVariableSize),
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EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
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EFI_FLASH_AREA_EFI_VARIABLES },
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//
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// Boot block 2nd part
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//
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{ FixedPcdGet32 (PcdFlashFvRecovery2Base),
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FixedPcdGet32 (PcdFlashFvRecovery2Size),
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EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
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EFI_FLASH_AREA_FTW_BACKUP },
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//
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// Recovery FV
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//
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{ FixedPcdGet32 (PcdFlashFvRecoveryBase),
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FixedPcdGet32 (PcdFlashFvRecoverySize),
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EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
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EFI_FLASH_AREA_RECOVERY_BIOS },
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//
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// Main FV
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//
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{ FixedPcdGet32 (PcdFlashFvMainBase),
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FixedPcdGet32 (PcdFlashFvMainSize),
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EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
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EFI_FLASH_AREA_MAIN_BIOS }
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};
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#define NUM_FLASH_AREA_DATA (ARRAY_SIZE (mFlashAreaData))
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/**
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Build GUID HOBs for platform specific flash map.
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@param FfsHeader Pointer this FFS file header.
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@param PeiServices General purpose services available to every PEIM.
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@retval EFI_SUCCESS Guid HOBs for platform flash map is built.
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@retval Otherwise Failed to build the Guid HOB data.
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**/
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EFI_STATUS
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PeimInitializeFlashMap (
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IN EFI_FFS_FILE_HEADER *FfsHeader,
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IN EFI_PEI_SERVICES **PeiServices
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)
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{
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UINTN Index;
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EFI_FLASH_AREA_HOB_DATA FlashHobData;
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//
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// Build flash area entries as GUIDed HOBs.
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//
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for (Index = 0; Index < NUM_FLASH_AREA_DATA; Index++) {
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ZeroMem(&FlashHobData, sizeof (EFI_FLASH_AREA_HOB_DATA));
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FlashHobData.AreaType = mFlashAreaData[Index].AreaType;
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FlashHobData.NumberOfEntries = 1;
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FlashHobData.SubAreaData.Attributes = mFlashAreaData[Index].Attributes;
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FlashHobData.SubAreaData.Base = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Base;
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FlashHobData.SubAreaData.Length = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Length;
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switch (FlashHobData.AreaType) {
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case EFI_FLASH_AREA_RECOVERY_BIOS:
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case EFI_FLASH_AREA_MAIN_BIOS:
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CopyMem (
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&FlashHobData.AreaTypeGuid,
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&mFfsGuid,
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sizeof (EFI_GUID)
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);
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CopyMem (
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&FlashHobData.SubAreaData.FileSystem,
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&mFvBlockGuid,
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sizeof (EFI_GUID)
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);
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break;
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case EFI_FLASH_AREA_GUID_DEFINED:
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CopyMem (
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&FlashHobData.AreaTypeGuid,
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&mSystemDataGuid,
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sizeof (EFI_GUID)
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);
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CopyMem (
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&FlashHobData.SubAreaData.FileSystem,
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&mFvBlockGuid,
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sizeof (EFI_GUID)
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);
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break;
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default:
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break;
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}
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PeiBuildHobGuidData(PeiServices,
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&gEfiFlashMapHobGuid,
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&FlashHobData,
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sizeof (EFI_FLASH_AREA_HOB_DATA)
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);
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}
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return EFI_SUCCESS;
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}
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