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