EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER Struct Reference


Data Fields

EFI_GUID Signature
UINT32 Crc
UINT8 WorkingBlockValid: 1
UINT8 WorkingBlockInvalid: 1
UINT8 Reserved: 6
UINT8 Reserved3 [3]
UINT64 WriteQueueSize

Detailed Description

The EDKII Fault tolerant working block header. The header is immediately followed by the write queue data.

Field Documentation

32bit CRC calculated for this header.

FTW working block signature. Its value has be updated from gEfiSystemNvDataFvGuid to gEdkiiWorkingBlockSignatureGuid, because its write queue data format has been updated to support the crossing archs.

Working block valid bit.

Total size of the following write queue range.


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