On Wed, Jun 16, 2021 at 06:00:09AM -0500, Brijesh Singh wrote:
> I am trying to be consistent with previous VMGEXIT implementations. If
> the command itself failed then use the command specific error code to
> tell hypervisor why we terminated but if the hypervisor violated the
> GHCB specification then use the "general request termination".
I feel like we're running in circles here: I ask about debuggability
and telling the user what exactly failed and you're giving me some
explanation about what the error codes mean. I can see what they mean.
So let me try again:
Imagine you're a guest owner and you haven't written the SNP code and
you don't know how it works.
You start a guest in the public cloud and it fails because the
hypervisor violates the GHCB protocol and all that guest prints before
it dies is
"general request termination"
How are you - the guest owner - going to find out what exactly happened?
Call support?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
