978   IN CONST EFI_FIRMWARE_VOLUME_HEADER    *FwVolHeader  in IsFvHeaderValid()
982 …  if (CompareMem (&FwVolHeader->FileSystemGuid, &gEfiSystemNvDataFvGuid, sizeof(EFI_GUID)) != 0 ) {  in IsFvHeaderValid()
986 …if (CompareMem (&FwVolHeader->FileSystemGuid, &gEfiFirmwareFileSystem2Guid, sizeof(EFI_GUID)) != 0…  in IsFvHeaderValid()
990   if ( (FwVolHeader->Revision != EFI_FVH_REVISION)   ||  in IsFvHeaderValid()
991        (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||  in IsFvHeaderValid()
992        (FwVolHeader->FvLength == ((UINTN) -1))       ||  in IsFvHeaderValid()
993        ((FwVolHeader->HeaderLength & 0x01 ) !=0) ) {  in IsFvHeaderValid()
997   if (CalculateCheckSum16 ((UINT16 *) FwVolHeader, FwVolHeader->HeaderLength) != 0) {  in IsFvHeaderValid()
1019   EFI_FIRMWARE_VOLUME_HEADER            *FwVolHeader;  in FvbInitialize()
1052     FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;  in FvbInitialize()
1054     if (!IsFvHeaderValid (BaseAddress, FwVolHeader)) {  in FvbInitialize()
1061       Status          = GetFvbInfo (BaseAddress, &FwVolHeader);  in FvbInitialize()
1067       LibFvbFlashDeviceBlockLock ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length, FALSE);  in FvbInitialize()
1069       Status = LibFvbFlashDeviceBlockErase ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length);  in FvbInitialize()
1071       TmpHeaderLength = (UINTN) FwVolHeader->HeaderLength;  in FvbInitialize()
1075                  (UINT8 *) FwVolHeader  in FvbInitialize()
1078       LibFvbFlashDeviceBlockLock ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length, TRUE);  in FvbInitialize()
1082         FwVolHeader->BlockMap->Length  in FvbInitialize()
1087     CopyMem (&(FwhInstance->VolumeHeader), FwVolHeader, FwVolHeader->HeaderLength);  in FvbInitialize()
1089     FwVolHeader = &(FwhInstance->VolumeHeader);  in FvbInitialize()
1096 …for (PtrBlockMapEntry = FwVolHeader->BlockMap; PtrBlockMapEntry->NumBlocks != 0; PtrBlockMapEntry+…  in FvbInitialize()
1116                                           FwVolHeader->HeaderLength +  in FvbInitialize()