EFI_NVDIMM_LABEL_INDEX_BLOCK Struct Reference

#include <NvdimmLabel.h>

Public Attributes
CHAR8	Sig [EFI_NVDIMM_LABEL_INDEX_SIG_LEN]
UINT8	Flags [3]
UINT8	LabelSize
UINT32	Seq
UINT64	MyOff
UINT64	MySize
UINT64	OtherOff
UINT64	LabelOff
UINT32	NSlot
UINT16	Major
UINT16	Minor
UINT64	Checksum
UINT8	Free []

Member Data Documentation

Checksum

UINT64 EFI_NVDIMM_LABEL_INDEX_BLOCK::Checksum

64-bit Fletcher64 checksum of all fields in this Index Block.

Flags

UINT8 EFI_NVDIMM_LABEL_INDEX_BLOCK::Flags[3]

Attributes of this Label Storage Area.

Free

UINT8 EFI_NVDIMM_LABEL_INDEX_BLOCK::Free[]

Array of unsigned bytes implementing a bitmask that tracks which label slots are free. A bit value of 0 indicates in use, 1 indicates free. The size of this field is the number of bytes required to hold the bitmask with NSlot bits, padded with additional zero bytes to make the Index Block size a multiple of EFI_NVDIMM_LABEL_INDEX_ALIGN. Any bits allocated beyond NSlot bits must be zero.

LabelOff

UINT64 EFI_NVDIMM_LABEL_INDEX_BLOCK::LabelOff

The offset of the first slot where labels are stored in this Label Storage Area.

LabelSize

UINT8 EFI_NVDIMM_LABEL_INDEX_BLOCK::LabelSize

Size of each label in bytes, 128 bytes << LabelSize. 1 means 256 bytes, 2 means 512 bytes, etc. Shall be 1 or greater.

Major

UINT16 EFI_NVDIMM_LABEL_INDEX_BLOCK::Major

Major version number. Value shall be 1.

Minor

UINT16 EFI_NVDIMM_LABEL_INDEX_BLOCK::Minor

Minor version number. Value shall be 2.

MyOff

UINT64 EFI_NVDIMM_LABEL_INDEX_BLOCK::MyOff

The offset of this Index Block in the Label Storage Area.

MySize

UINT64 EFI_NVDIMM_LABEL_INDEX_BLOCK::MySize

The size of this Index Block in bytes. This field must be a multiple of the EFI_NVDIMM_LABEL_INDEX_ALIGN.

NSlot

UINT32 EFI_NVDIMM_LABEL_INDEX_BLOCK::NSlot

The total number of slots for storing labels in this Label Storage Area.

OtherOff

UINT64 EFI_NVDIMM_LABEL_INDEX_BLOCK::OtherOff

The offset of the other Index Block paired with this one.

Seq

UINT32 EFI_NVDIMM_LABEL_INDEX_BLOCK::Seq

Sequence number used to identify which of the two Index Blocks is current.

Sig

CHAR8 EFI_NVDIMM_LABEL_INDEX_BLOCK::Sig[EFI_NVDIMM_LABEL_INDEX_SIG_LEN]

Signature of the Index Block data structure. Must be "NAMESPACE_INDEX\0".

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The documentation for this struct was generated from the following file:

• XenevaOS/Boot/include/Protocol/NvdimmLabel.h