Re: [PATCH Part1 RFC v3 11/22] x86/sev: Add helper for validating pages in early enc attribute changes
From: Borislav Petkov <bp@alien8.de>
Date: 2021-06-16 13:02:52
Also in:
kvm, linux-crypto, linux-efi, linux-mm, lkml, platform-driver-x86
On Wed, Jun 16, 2021 at 07:49:25AM -0500, Brijesh Singh wrote:
If you still think ...
I think you should answer my question first:
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?
And let me paraphrase it again: if the error condition with which the
guest terminates is not uniquely identifiable but simply a "general
request", how are such conditions going to be debugged?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette