linux-kernel - Re: [PATCH 1/2] x86/cpufeatures: Add "Allowed SEV Features" Feature

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Message-ID: <87o7642u7w.ffs@tglx>
Date: Wed, 07 Aug 2024 18:06:27 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Kim Phillips <kim.phillips@....com>, kvm@...r.kernel.org,
 linux-kernel@...r.kernel.org, x86@...nel.org
Cc: Tom Lendacky <thomas.lendacky@....com>, Michael Roth
 <michael.roth@....com>, Ashish Kalra <ashish.kalra@....com>, Nikunj A
 Dadhania <nikunj@....com>, Borislav Petkov <bp@...en8.de>, Dave Hansen
 <dave.hansen@...ux.intel.com>, Sean Christopherson <seanjc@...gle.com>,
 Paolo Bonzini <pbonzini@...hat.com>, Ingo Molnar <mingo@...hat.com>, "H.
 Peter Anvin" <hpa@...or.com>, Kishon
 Vijay Abraham I <kvijayab@....com>, Kim Phillips <kim.phillips@....com>
Subject: Re: [PATCH 1/2] x86/cpufeatures: Add "Allowed SEV Features" Feature

On Thu, Aug 01 2024 at 20:57, Kim Phillips wrote:
> From: Kishon Vijay Abraham I <kvijayab@....com>
>
> Add CPU feature detection for "Allowed SEV Features" to allow the
> Hypervisor to enforce that SEV-ES and SEV-SNP guest VMs cannot
> enable features (via SEV_FEATURES) that the Hypervisor does not
> support or wish to be enabled.

Can you please add this new feature bit to the CPUID database

    https://gitlab.com/x86-cpuid.org/x86-cpuid-db

Thanks,

        tglx