[RFC] SBI: Attestation Extension #108
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This patch add an attestation and measurement SBI extension (`ATST`). The `ATST` extension defines a set of functions for SBI implementations to provide attestation primitives, mostly related to the confidential computing remote attestation flows. Besides allowing SBI callers to request for attestation certificates, this extension also give them the ability to dynamically extend the TCB measurements set and read measurement registers back. SBI implementations must expose their attestation and measurement capabilities through the `ATST` FID #0: `get_capabilities`. Signed-off-by: Samuel Ortiz <[email protected]>
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This patch add an attestation and measurement SBI extension (
ATST).The
ATSTextension defines a set of functions for SBI implementations to provide attestation primitives, mostly related to the confidential computing remote attestation flows.Besides allowing SBI callers to request for attestation certificates, this extension also give them the ability to dynamically extend the TCB measurements set and read measurement registers back.
SBI implementations must expose their attestation and measurement capabilities through the
ATSTFID #0:get_capabilities.