linux-kernel - Re: [PATCH v3 1/2] x86/cpufeatures: Add macros for Intel's new fast rep string features

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Date:   Fri, 7 Oct 2022 01:46:59 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Jim Mattson <jmattson@...gle.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
        Babu Moger <babu.moger@....com>,
        "Chang S. Bae" <chang.seok.bae@...el.com>,
        Wyes Karny <wyes.karny@....com>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@...r.kernel.org>,
        "open list:KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)" 
        <kvm@...r.kernel.org>
Subject: Re: [PATCH v3 1/2] x86/cpufeatures: Add macros for Intel's new fast
 rep string features

On Thu, Sep 01, 2022, Jim Mattson wrote:
> KVM_GET_SUPPORTED_CPUID should reflect these host CPUID bits. The bits
> are already cached in word 12. Give the bits X86_FEATURE names, so
> that they can be easily referenced. Hide these bits from
> /proc/cpuinfo, since the host kernel makes no use of them at present.
> 
> Signed-off-by: Jim Mattson <jmattson@...gle.com>
> ---

Reviewed-by: Sean Christopherson <seanjc@...gle.com>