mirror of https://github.com/acidanthera/audk.git
148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/*++ @file
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Defines data structure that is the volume header found.These data is intent
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to decouple FVB driver with FV header.
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Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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Portions copyright (c) 2011, Apple Inc. All rights reserved.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiDxe.h>
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#include <Guid/EventGroup.h>
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#include <Guid/FirmwareFileSystem2.h>
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#include <Guid/SystemNvDataGuid.h>
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#include <Protocol/FirmwareVolumeBlock.h>
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#include <Protocol/DevicePath.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/UefiRuntimeLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/PcdLib.h>
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#include <Library/DevicePathLib.h>
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typedef struct {
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UINT64 FvLength;
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EFI_FIRMWARE_VOLUME_HEADER FvbInfo;
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//
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// EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0
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//
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EFI_FV_BLOCK_MAP_ENTRY End[1];
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} EFI_FVB_MEDIA_INFO;
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EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {
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//
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// Recovery BOIS FVB
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//
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{
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FixedPcdGet32 (PcdEmuFlashFvRecoverySize),
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{
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{
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0,
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}, // ZeroVector[16]
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EFI_FIRMWARE_FILE_SYSTEM2_GUID,
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FixedPcdGet32 (PcdEmuFlashFvRecoverySize),
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EFI_FVH_SIGNATURE,
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EFI_FVB2_READ_ENABLED_CAP |
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EFI_FVB2_READ_STATUS |
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EFI_FVB2_WRITE_ENABLED_CAP |
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EFI_FVB2_WRITE_STATUS |
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EFI_FVB2_ERASE_POLARITY,
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, // CheckSum
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0, // ExtHeaderOffset
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{
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0,
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}, // Reserved[1]
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2, // Revision
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{
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{
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FixedPcdGet32 (PcdEmuFlashFvRecoverySize)/FixedPcdGet32 (PcdEmuFirmwareBlockSize),
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FixedPcdGet32 (PcdEmuFirmwareBlockSize),
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}
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}
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},
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{
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{
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0,
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0
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}
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}
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},
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//
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// Systen NvStorage FVB
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//
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{
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FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
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FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize),
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{
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{
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0,
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}, // ZeroVector[16]
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EFI_SYSTEM_NV_DATA_FV_GUID,
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FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
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FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize),
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EFI_FVH_SIGNATURE,
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EFI_FVB2_READ_ENABLED_CAP |
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EFI_FVB2_READ_STATUS |
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EFI_FVB2_WRITE_ENABLED_CAP |
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EFI_FVB2_WRITE_STATUS |
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EFI_FVB2_ERASE_POLARITY,
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, // CheckSum
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0, // ExtHeaderOffset
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{
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0,
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}, // Reserved[1]
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2, // Revision
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{
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{
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(FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
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FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize)) / FixedPcdGet32 (PcdEmuFirmwareBlockSize),
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FixedPcdGet32 (PcdEmuFirmwareBlockSize),
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}
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}
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},
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{
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{
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0,
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0
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}
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}
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}
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};
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EFI_STATUS
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GetFvbInfo (
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IN UINT64 FvLength,
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OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo
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)
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{
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UINTN Index;
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for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
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if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
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*FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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