Device Attestation and CoRIM-based Reference Measurement Sharing
Device Attestation and CoRIM-based Reference Measurement Sharing
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NVLink6 ASIC Measurements

The measurement specification for all the indexes listed in the table below is: 0x01 (DMTF).

Version 1.2.0

Index 

Measurement 

Value 

Description 

What is measured? 

Part of CoRIM 

1

 

DMTFSpecMeasurementValueType 

0x83 

Raw bitstream, FW Config 

Interpret as Semver2.0 ((https://semver.org/). 
Byte 3: Major Version 
Byte 2-1: Minor Version 
Byte 0: is patch 

Yes

DMTFSpecMeasurementValueSize 

4 

4-byte unsigned Integer, little endian 

2

DMTFSpecMeasurementValueType 

0x01 

Hash, mutable FW 

Hash of PSC FW

Yes

DMTFSpecMeasurementValueSize 

64 

SHA2-512 hash

3

DMTFSpecMeasurementValueType 

0x03 

Hash, FW configuration 

Hash of OEM Platform FW Configuration

Yes

DMTFSpecMeasurementValueSize

 64

SHA2-512 hash

4

DMTFSpecMeasurementValueType 

0x03 

Hash, FW configuration 

 Hash of OEM NIC FW Configuration

Yes

DMTFSpecMeasurementValueSize

 64

SHA2-512 hash

5

DMTFSpecMeasurementValueType 

0x03 

Hash, FW configuration 

Hash of NVIDIA Platform FW Configuration

Yes

DMTFSpecMeasurementValueSize

 64

SHA2-512 hash

 6

DMTFSpecMeasurementValueType 

0x03 

0x03 = Hash, FW configuration 

 Hash of NVIDIA NIC FW Configuration

Yes


DMTFSpecMeasurementValueSize

64

SHA2-512 hash

7 

DMTFSpecMeasurementValueType 

0x83 

Raw bitstream, FW configuration 

Platform mutable FW version number 

Yes

DMTFSpecMeasurementValueSize

9

9 bytes, unsigned Integer, little endian 

8 

DMTFSpecMeasurementValueType

0x83 

Raw bitstream, FW configuration  

NIC mutable FW version number 

Yes

DMTFSpecMeasurementValueSize

3 

3 bytes, unsigned Integer, little endian 

9

DMTFSpecMeasurementValueType 

0x83

Raw bitstream, FW configuration 

Platform mutable FW security version number 

Yes

DMTFSpecMeasurementValueSize

3

3 bytes, unsigned Integer, little endian 

10 

DMTFSpecMeasurementValueType 

0x83 

Raw bitstream, FW configuration 

NIC mutable FW security version number 

Yes

DMTFSpecMeasurementValueSize

1

1 byte, unsigned Integer, little endian 

11

DMTFSpecMeasurementValueType 

0x01 

Hash, mutable FW 

Hash of NIC FW

Yes

DMTFSpecMeasurementValueSize

64 

SHA2-512 hash 

12 

DMTFSpecMeasurementValueType 

0x02 

Hash, HW configuration 

Hash of hardware configuration 

Yes

DMTFSpecMeasurementValueSize 

64 

SHA2-512 hash 

13 

DMTFSpecMeasurementValueType 

0x02 

Hash, HW configuration 

Hash of instance-based hardware configuration 

No

DMTFSpecMeasurementValueSize

64 

SHA2-512 hash 

14

DMTFSpecMeasurementValueType 

0x83 

Raw bitstream, FW configuration 

Debug tokens status:

Device Runtime Status (32-bit) 
     Bit 0-1: Runtime token (customer support)
     Bit 2-3: Debug FW Token
     Bit 4-5: FRC token
     Bit 6-31: reserved

Each pair consists of:
     Bit 0: Runtime Token Applied Since Last Reset (1 bit)
     Bit 1: Runtime Token Currently In Use (1 bit)

Yes, reported with all bits clear.

DMTFSpecMeasurementValueSize

4

32-bit, unsigned integer, little endian

 15

DMTFSpecMeasurementValueType 

0x81

0x81 = Raw bitstream (mutable FW)

FWID-0; This should be the same as TCG-OID extension in L5 certificate

Yes

DMTFSpecMeasurementValueSize

48

Raw bitstream of SHA-384 hash

16 

DMTFSpecMeasurementValueType 

0x81

0x81 = Raw bitstream (mutable FW)

FWID-1; This should be the same as TCG-OID extension in L6 certificate

Yes

DMTFSpecMeasurementValueSize 

48

Raw bitstream of SHA-384 hash

17

DMTFSpecMeasurementValueType 

0x81 

0x81 = Raw bitstream (Device Identifier)

Device identifier (DID, VID, SVID, SID) as defined by PCISIG and a vendor defined byte. 
Byte 1:2 - Vendor ID 
Byte 3:4 - Device ID 
Byte 5:6 - Subsystem Vendor ID 
Byte 7:8 - Subsystem ID 
Byte 9 - Vendor defined byte 
 
All multi-byte fields are little endian (uint16_t)

Yes (also in CoMID tag-id); 

DMTFSpecMeasurementValueSize

 9

Raw bitstream  

18

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

19

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

20

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

21

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

22

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

23

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

24

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

25

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

26

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

27

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

28

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

29

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

30

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

31

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

32

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

33

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

34

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

35

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

36

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

37

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

38

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

39

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

40

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

41

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

42

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

43

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

44

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

45

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

46

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

47

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

48

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

49

DMTFSpecMeasurementValueType 

0x82

0x81 = Raw bitstream, HW Configuration

Reserved. Reported as 0xFF

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

50

DMTFSpecMeasurementValueType 

0x83

0x81 = Raw bitstream, FW Configuration

Debug Token Configuration:

Byte 91-60: nonce (32B)
Byte 59-57: reserved
Byte 56-52: FW version
Byte 51-36: PSID
Byte 35-28: device unique identifier (ECID 64 msb)
Byte 27-12: Keypair UUID
Byte 11: status
Byte 10: reserved (was token opcode)
Byte 9-8: device type identifier
Byte 7-6: struct size
Byte 5: struct major version
Byte 4: struct minor version
Byte 3-0: tools magic pattern

No

DMTFSpecMeasurementValueSize 

1

Raw bitstream

51

DMTFSpecMeasurementValueType 

0x81

0x81 = Raw bitstream (Device Identifier)

PLDM device identifiers:
The format of data is based on the PLDM QueryDeviceIdentifiers response, but might not be identical to it as this index has a fixed list of descriptors with a fixed ordering.
Byte 0: 0x0 (Completion Code)
Bytes 1-4: Total length of descriptors in bytes starting at byte 6
Byte 5: Total number of descriptors
Bytes 6-N: List of device descriptors
The list of device descriptors includes:

  • PCI Vendor ID

  • PCI Device ID

  • PCI Subsystem Vendor ID

  • PCI Sybsystem ID

  • If APSKU present on the device: Vendor defined block with content:

    • APSKU

All multi-byte fields are little endian.

Yes

DMTFSpecMeasurementValueSize


Raw bitstream


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