Messages in this thread | | | Date | Fri, 02 Feb 2024 00:02:42 +0200 | Subject | Re: [RFC PATCH v2 0/4] tsm: Runtime measurement registers ABI | From | "Jarkko Sakkinen" <> |
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On Sun Jan 28, 2024 at 11:25 PM EET, 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.
Please expand "TSM" acronym and explain what it is.
> All architectures supporting RTMRs expose a similar interface to their
Please expand RTMR *everywhere* ot "measurement registers". It is totally useless terminology.
> TVMs: An extension command/call that takes a measurement value and an
What is TVM?
> 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.
This patch set should simplify its gibberish terminology to common language.
BR, Jarkko
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