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Question on Attestation Firmware Manifest Data Structure #1

Open PrakashK94 opened 8 months ago

PrakashK94 commented 8 months ago

Do you know what Policy field indicates in attestation firmware manifest data structure in Intel PFR spec?

hangsuan commented 8 months ago

The policy define what user want PFR take an action, example: when failure happened or PFR should attest do pre-reset attest, etc.

PrakashK94 commented 8 months ago
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When bit 2 is set, what does protocol error means?

hangsuan commented 8 months ago

it means any SPDM protocol error (such as attest device is not response), what pfr should do.

PrakashK94 commented 6 months ago

When bit 3 is set, what does challenge the device means?

hangsuan commented 6 months ago

bit 3 is set when we want to do attestation during boot time.

PrakashK94 commented 6 months ago
image

Could you please explain about the information present at Data field offset 0x004?