Messages in this thread | | | From | biao.lu@intel ... | Subject | Re: [RFC PATCH v1 0/4] tsm: Runtime measurement registers ABI | Date | Thu, 18 Jan 2024 11:35:15 +0800 |
| |
Samuel Ortiz wrote: > Some confidential computing architectures (Intel TDX, ARM CCA, RISC-V > CoVE) provide their guests with a set of measurements registers that can > be extended at runtime, i.e. after the initial, host-initiated > measurements of the TVM are finalized. Those runtime measurement > registers (RTMR) are isolated from the host accessible ones but TSMs > include them in their signed attestation reports. > > All architectures supporting RTMRs expose a similar interface to their > TVMs: An extension command/call that takes a measurement value and an > RTMR index to extend it with, and a readback command for reading an RTMR > value back (taking an RTMR index as an argument as well). This patch series > builds an architecture agnostic, configfs-based ABI for userspace to extend > and read RTMR values back. It extends the current TSM ops structure and > each confidential computing architecture can implement this extension to > provide RTMR support.
Hi, Samuel The ABI does not include eventlog, but eventlog is usually used with RTMR. What do you think about how to implement eventlog?
| |