mirror of https://github.com/acidanthera/audk.git
339 lines
10 KiB
C
339 lines
10 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) 2013 Intel Corporation.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include "FwBlockService.h"
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//#define FVB_MEDIA_BLOCK_SIZE PcdGet32(PcdFlashMinEraseSize)
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#define FVB_MEDIA_BLOCK_SIZE 0x1000
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typedef struct {
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EFI_PHYSICAL_ADDRESS BaseAddress;
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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_FVB2_MEDIA_INFO;
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//
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// This data structure contains a template of all correct FV headers, which is used to restore
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// Fv header if it's corrupted.
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//
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EFI_FVB2_MEDIA_INFO mPlatformFvbMediaInfo[] = {
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//
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// Main BIOS FVB
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//
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{
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0,
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{
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{0,}, //ZeroVector[16]
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EFI_FIRMWARE_FILE_SYSTEM2_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum, check the FD for the value.
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0, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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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0,
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{
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{0,}, //ZeroVector[16]
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EFI_SYSTEM_NV_DATA_FV_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum which will be calucated dynamically.
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0, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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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// Recovery BIOS FVB
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//
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{
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0,
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{
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{0,}, //ZeroVector[16]
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EFI_FIRMWARE_FILE_SYSTEM2_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum which will be calucated dynamically.
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0, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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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// Payload FVB
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//
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{
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0,
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{
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{0,}, //ZeroVector[16]
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EFI_FIRMWARE_FILE_SYSTEM2_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum which will be calucated dynamically.
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0x60, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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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//
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// FTW working space and FTW spare space don't have FV header.
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// We need create one for them and use it for FVB protocol.
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//
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EFI_FVB2_MEDIA_INFO mPlatformFtwFvbInfo[] = {
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//
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// System variable FTW working FVB
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//
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{
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0,
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{
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{0,}, //ZeroVector[16]
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EFI_SYSTEM_NV_DATA_FV_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum which will be calucated dynamically.
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0, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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 NV variable FTW spare FVB
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//
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{
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0,
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{
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{0,}, //ZeroVector[16]
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EFI_SYSTEM_NV_DATA_FV_GUID,
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0,
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EFI_FVH_SIGNATURE,
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0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, //CheckSum which will be calucated dynamically.
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0, //ExtHeaderOffset
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{0,}, //Reserved[1]
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2, //Revision
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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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{
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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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GetFtwFvbInfo (
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IN EFI_PHYSICAL_ADDRESS FvBaseAddress,
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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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EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
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//
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// Init Fvb data
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//
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mPlatformFtwFvbInfo[0].BaseAddress = PcdGet32 (PcdFlashNvStorageFtwWorkingBase);
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mPlatformFtwFvbInfo[0].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageFtwWorkingSize);
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mPlatformFtwFvbInfo[0].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageFtwWorkingSize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFtwFvbInfo[0].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashNvStorageFtwWorkingSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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mPlatformFtwFvbInfo[1].BaseAddress = PcdGet32 (PcdFlashNvStorageFtwSpareBase);
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mPlatformFtwFvbInfo[1].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageFtwSpareSize);
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mPlatformFtwFvbInfo[1].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageFtwSpareSize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFtwFvbInfo[1].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashNvStorageFtwSpareSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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for (Index=0; Index < sizeof (mPlatformFtwFvbInfo)/sizeof (mPlatformFtwFvbInfo[0]); Index += 1) {
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if (mPlatformFtwFvbInfo[Index].BaseAddress == FvBaseAddress) {
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FvHeader = &mPlatformFtwFvbInfo[Index].FvbInfo;
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//
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// Update the checksum value of FV header.
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//
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FvHeader->Checksum = CalculateCheckSum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength / sizeof (UINT16));
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*FvbInfo = FvHeader;
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DEBUG ((EFI_D_INFO, "\nFTW BaseAddr: 0x%lx \n", FvBaseAddress));
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DEBUG ((EFI_D_INFO, "FvLength: 0x%lx \n", (*FvbInfo)->FvLength));
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DEBUG ((EFI_D_INFO, "HeaderLength: 0x%x \n", (*FvbInfo)->HeaderLength));
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DEBUG ((EFI_D_INFO, "FvBlockMap[0].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[0].NumBlocks));
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DEBUG ((EFI_D_INFO, "FvBlockMap[0].BlockLength: 0x%x \n", (*FvbInfo)->BlockMap[0].Length));
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DEBUG ((EFI_D_INFO, "FvBlockMap[1].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[1].NumBlocks));
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DEBUG ((EFI_D_INFO, "FvBlockMap[1].BlockLength: 0x%x \n\n", (*FvbInfo)->BlockMap[1].Length));
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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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EFI_STATUS
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GetFvbInfo (
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IN EFI_PHYSICAL_ADDRESS FvBaseAddress,
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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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EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
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//
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// Init Fvb data
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//
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mPlatformFvbMediaInfo[0].BaseAddress = PcdGet32 (PcdFlashFvMainBase);
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mPlatformFvbMediaInfo[0].FvbInfo.FvLength = PcdGet32 (PcdFlashFvMainSize);
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mPlatformFvbMediaInfo[0].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvMainSize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFvbMediaInfo[0].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashFvMainSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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mPlatformFvbMediaInfo[1].BaseAddress = PcdGet32 (PcdFlashNvStorageVariableBase);
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mPlatformFvbMediaInfo[1].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageVariableSize);
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mPlatformFvbMediaInfo[1].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageVariableSize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFvbMediaInfo[1].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashNvStorageVariableSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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mPlatformFvbMediaInfo[2].BaseAddress = PcdGet32 (PcdFlashFvRecoveryBase);
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mPlatformFvbMediaInfo[2].FvbInfo.FvLength = PcdGet32 (PcdFlashFvRecoverySize);
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mPlatformFvbMediaInfo[2].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvRecoverySize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFvbMediaInfo[2].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashFvRecoverySize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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mPlatformFvbMediaInfo[3].BaseAddress = PcdGet32 (PcdFlashFvPayloadBase);
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mPlatformFvbMediaInfo[3].FvbInfo.FvLength = PcdGet32 (PcdFlashFvPayloadSize);
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mPlatformFvbMediaInfo[3].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvPayloadSize) / FVB_MEDIA_BLOCK_SIZE;
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mPlatformFvbMediaInfo[3].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
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ASSERT ((PcdGet32 (PcdFlashFvPayloadSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
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for (Index=0; Index < sizeof (mPlatformFvbMediaInfo)/sizeof (mPlatformFvbMediaInfo[0]); Index += 1) {
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if (mPlatformFvbMediaInfo[Index].BaseAddress == FvBaseAddress) {
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FvHeader = &mPlatformFvbMediaInfo[Index].FvbInfo;
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//
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// Update the checksum value of FV header.
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//
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FvHeader->Checksum = CalculateCheckSum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength / sizeof (UINT16));
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*FvbInfo = FvHeader;
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DEBUG ((EFI_D_INFO, "\nBaseAddr: 0x%lx \n", FvBaseAddress));
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DEBUG ((EFI_D_INFO, "FvLength: 0x%lx \n", (*FvbInfo)->FvLength));
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DEBUG ((EFI_D_INFO, "HeaderLength: 0x%x \n", (*FvbInfo)->HeaderLength));
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DEBUG ((EFI_D_INFO, "FvBlockMap[0].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[0].NumBlocks));
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DEBUG ((EFI_D_INFO, "FvBlockMap[0].BlockLength: 0x%x \n", (*FvbInfo)->BlockMap[0].Length));
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DEBUG ((EFI_D_INFO, "FvBlockMap[1].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[1].NumBlocks));
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DEBUG ((EFI_D_INFO, "FvBlockMap[1].BlockLength: 0x%x \n\n", (*FvbInfo)->BlockMap[1].Length));
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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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