Re: [PATCH 02/22] x86/srso: Set CPUID feature bits independently of bug or mitigation status
From: Borislav Petkov
Date: Thu Aug 24 2023 - 00:31:01 EST
On Wed, Aug 23, 2023 at 01:22:34PM +0100, Andrew Cooper wrote:
> In my previous reply, I explained why this goes wrong when Linux ignores
> the CPUID bit provided by the hypervisor and decides to probe manually.
Send a patch and explain in its commit message *why* this is needed.
> No.
Hell yeah!
How do you expect us to support use cases we don't know about?!
> You don't get to take my code, break it when integrating it into Linux,
> then dismiss the bug as something hypothetical that you don't want to fix.
I have no clue what you're talking about but it sounds like
a misunderstanding. All I'm saying is, the live migration use cases the
kernel should support, should be documented first. If there's no
documentation for them, *then* you have hypothetical.
So patches explaining what we're supporting are welcome.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette