Re: [PATCH 0/2] x86: KVM: Add missing AMD features

[Maksim Davydov]

Hi!

On 11/16/24 14:47, Borislav Petkov wrote:
> On Wed, Nov 13, 2024 at 04:30:40PM +0300, Maksim Davydov wrote:
> > This series adds definition of some missing AMD features in
> > 0x80000008_EBX and 0x80000021_EAX functions. It also gives an opportunity
> > to expose these features to userspace.
>
> Any particular, concrete use for them in luserspace or this is a just-for-fun
> exercise?

Yes, BTC_NO and AMD_IBPB_RET are used by guests while choosing mitigations.

--
Best regards,
Maksim Davydov