linux-kernel - Re: [PATCH v2 2/8] x86/mtrr: support setting MTRR state for software defined MTRRs

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Message-ID: <Y+4hpAdn+JQEBqoG@zn.tnic>
Date:   Thu, 16 Feb 2023 13:29:24 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        lists@...dbynature.de, mikelley@...rosoft.com,
        torvalds@...ux-foundation.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v2 2/8] x86/mtrr: support setting MTRR state for software
 defined MTRRs

On Thu, Feb 16, 2023 at 01:19:22PM +0100, Juergen Gross wrote:
> Hmm, I must be blind. I can't spot it.
> 
> I'm seeing only the feature bit #define and a call of
> setup_clear_cpu_cap(X86_FEATURE_SEV_SNP) in this patch.
> 
> Or is it done by hardware or the hypervisor?

Correction - I meant CC_ATTR_GUEST_SEV_SNP not the CPUID feature flag.

Sorry for the confusion folks.

-- 
Regards/Gruss,
    Boris.

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