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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) 2013 Intel Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiDxe.h>
#include "FwBlockService.h"
//#define FVB_MEDIA_BLOCK_SIZE PcdGet32(PcdFlashMinEraseSize)
#define FVB_MEDIA_BLOCK_SIZE 0x1000
typedef struct {
EFI_PHYSICAL_ADDRESS BaseAddress;
EFI_FIRMWARE_VOLUME_HEADER FvbInfo;
//
//EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0
//
EFI_FV_BLOCK_MAP_ENTRY End[1];
} EFI_FVB2_MEDIA_INFO;
//
// This data structure contains a template of all correct FV headers, which is used to restore
// Fv header if it's corrupted.
//
EFI_FVB2_MEDIA_INFO mPlatformFvbMediaInfo[] = {
//
// Main BIOS FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_FIRMWARE_FILE_SYSTEM2_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum, check the FD for the value.
0, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
},
//
// Systen NvStorage FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_SYSTEM_NV_DATA_FV_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum which will be calucated dynamically.
0, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
},
//
// Recovery BIOS FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_FIRMWARE_FILE_SYSTEM2_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum which will be calucated dynamically.
0, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
},
//
// Payload FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_FIRMWARE_FILE_SYSTEM2_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum which will be calucated dynamically.
0x60, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
}
};
//
// FTW working space and FTW spare space don't have FV header.
// We need create one for them and use it for FVB protocol.
//
EFI_FVB2_MEDIA_INFO mPlatformFtwFvbInfo[] = {
//
// System variable FTW working FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_SYSTEM_NV_DATA_FV_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum which will be calucated dynamically.
0, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
},
//
// Systen NV variable FTW spare FVB
//
{
0,
{
{0,}, //ZeroVector[16]
EFI_SYSTEM_NV_DATA_FV_GUID,
0,
EFI_FVH_SIGNATURE,
0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, //CheckSum which will be calucated dynamically.
0, //ExtHeaderOffset
{0,}, //Reserved[1]
2, //Revision
{
{
0,
0,
}
}
},
{
{
0,
0
}
}
}
};
EFI_STATUS
GetFtwFvbInfo (
IN EFI_PHYSICAL_ADDRESS FvBaseAddress,
OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo
)
{
UINTN Index;
EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
//
// Init Fvb data
//
mPlatformFtwFvbInfo[0].BaseAddress = PcdGet32 (PcdFlashNvStorageFtwWorkingBase);
mPlatformFtwFvbInfo[0].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageFtwWorkingSize);
mPlatformFtwFvbInfo[0].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageFtwWorkingSize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFtwFvbInfo[0].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashNvStorageFtwWorkingSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
mPlatformFtwFvbInfo[1].BaseAddress = PcdGet32 (PcdFlashNvStorageFtwSpareBase);
mPlatformFtwFvbInfo[1].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageFtwSpareSize);
mPlatformFtwFvbInfo[1].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageFtwSpareSize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFtwFvbInfo[1].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashNvStorageFtwSpareSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
for (Index=0; Index < sizeof (mPlatformFtwFvbInfo)/sizeof (mPlatformFtwFvbInfo[0]); Index += 1) {
if (mPlatformFtwFvbInfo[Index].BaseAddress == FvBaseAddress) {
FvHeader = &mPlatformFtwFvbInfo[Index].FvbInfo;
//
// Update the checksum value of FV header.
//
FvHeader->Checksum = CalculateCheckSum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength / sizeof (UINT16));
*FvbInfo = FvHeader;
DEBUG ((EFI_D_INFO, "\nFTW BaseAddr: 0x%lx \n", FvBaseAddress));
DEBUG ((EFI_D_INFO, "FvLength: 0x%lx \n", (*FvbInfo)->FvLength));
DEBUG ((EFI_D_INFO, "HeaderLength: 0x%x \n", (*FvbInfo)->HeaderLength));
DEBUG ((EFI_D_INFO, "FvBlockMap[0].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[0].NumBlocks));
DEBUG ((EFI_D_INFO, "FvBlockMap[0].BlockLength: 0x%x \n", (*FvbInfo)->BlockMap[0].Length));
DEBUG ((EFI_D_INFO, "FvBlockMap[1].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[1].NumBlocks));
DEBUG ((EFI_D_INFO, "FvBlockMap[1].BlockLength: 0x%x \n\n", (*FvbInfo)->BlockMap[1].Length));
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
EFI_STATUS
GetFvbInfo (
IN EFI_PHYSICAL_ADDRESS FvBaseAddress,
OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo
)
{
UINTN Index;
EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
//
// Init Fvb data
//
mPlatformFvbMediaInfo[0].BaseAddress = PcdGet32 (PcdFlashFvMainBase);
mPlatformFvbMediaInfo[0].FvbInfo.FvLength = PcdGet32 (PcdFlashFvMainSize);
mPlatformFvbMediaInfo[0].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvMainSize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFvbMediaInfo[0].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashFvMainSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
mPlatformFvbMediaInfo[1].BaseAddress = PcdGet32 (PcdFlashNvStorageVariableBase);
mPlatformFvbMediaInfo[1].FvbInfo.FvLength = PcdGet32 (PcdFlashNvStorageVariableSize);
mPlatformFvbMediaInfo[1].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashNvStorageVariableSize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFvbMediaInfo[1].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashNvStorageVariableSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
mPlatformFvbMediaInfo[2].BaseAddress = PcdGet32 (PcdFlashFvRecoveryBase);
mPlatformFvbMediaInfo[2].FvbInfo.FvLength = PcdGet32 (PcdFlashFvRecoverySize);
mPlatformFvbMediaInfo[2].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvRecoverySize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFvbMediaInfo[2].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashFvRecoverySize) % FVB_MEDIA_BLOCK_SIZE) == 0);
mPlatformFvbMediaInfo[3].BaseAddress = PcdGet32 (PcdFlashFvPayloadBase);
mPlatformFvbMediaInfo[3].FvbInfo.FvLength = PcdGet32 (PcdFlashFvPayloadSize);
mPlatformFvbMediaInfo[3].FvbInfo.BlockMap[0].NumBlocks = PcdGet32 (PcdFlashFvPayloadSize) / FVB_MEDIA_BLOCK_SIZE;
mPlatformFvbMediaInfo[3].FvbInfo.BlockMap[0].Length = FVB_MEDIA_BLOCK_SIZE;
ASSERT ((PcdGet32 (PcdFlashFvPayloadSize) % FVB_MEDIA_BLOCK_SIZE) == 0);
for (Index=0; Index < sizeof (mPlatformFvbMediaInfo)/sizeof (mPlatformFvbMediaInfo[0]); Index += 1) {
if (mPlatformFvbMediaInfo[Index].BaseAddress == FvBaseAddress) {
FvHeader = &mPlatformFvbMediaInfo[Index].FvbInfo;
//
// Update the checksum value of FV header.
//
FvHeader->Checksum = CalculateCheckSum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength / sizeof (UINT16));
*FvbInfo = FvHeader;
DEBUG ((EFI_D_INFO, "\nBaseAddr: 0x%lx \n", FvBaseAddress));
DEBUG ((EFI_D_INFO, "FvLength: 0x%lx \n", (*FvbInfo)->FvLength));
DEBUG ((EFI_D_INFO, "HeaderLength: 0x%x \n", (*FvbInfo)->HeaderLength));
DEBUG ((EFI_D_INFO, "FvBlockMap[0].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[0].NumBlocks));
DEBUG ((EFI_D_INFO, "FvBlockMap[0].BlockLength: 0x%x \n", (*FvbInfo)->BlockMap[0].Length));
DEBUG ((EFI_D_INFO, "FvBlockMap[1].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[1].NumBlocks));
DEBUG ((EFI_D_INFO, "FvBlockMap[1].BlockLength: 0x%x \n\n", (*FvbInfo)->BlockMap[1].Length));
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
|
