Re: [PATCH v2 0/3] Expose TDX Module version

[dan.j.williams]

Chao Gao wrote:
[..]
> And in my opinion, exposing version information to guests is also unnecessary
> since the module version can already be read from the host with this series.
> In debugging scenarios, I'm not sure why the TDX module would be so special
> that guests should know its version but not other host information, such as
> host kernel version, microcode version, etc. None of these are exposed to guest
> kernel (not to mention guest userspace).

Agree, and note that the guest already has full launch attestation
details available via the common
Documentation/ABI/testing/configfs-tsm-report transport.

I assume the primary need for version information is debug, but if you
are debugging a guest problem might as well get the entire launch
attestation with the version of "all the things" included.