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From:   Jim Mattson <jmattson@google.com>
Date:   Mon, 6 Nov 2017 10:09:39 -0800
Message-ID: <CALMp9eT24g5Vk5toF-Rzs-1bYauu593HAKgmOX4u2_atS-yOLg@mail.gmail.com>
Subject: Re: [PATCH v2 1/4] x86/kvm/cpuid: Fix CPUID function for word 6 (80000001_ECX)
To:     Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc:     kvm list <kvm@vger.kernel.org>,
        "the arch/x86 maintainers" <x86@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Radim Krcmar <rkrcmar@redhat.com>,
        Len Brown <len.brown@intel.com>, Kyle Huey <me@kylehuey.com>,
        Borislav Petkov <bp@suse.de>, Kan Liang <Kan.liang@intel.com>,
        Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Tony Luck <tony.luck@intel.com>,
        Benjamin Serebrin <serebrin@google.com>
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Reviewed-by: Jim Mattson <jmattson@google.com>

On Mon, Nov 6, 2017 at 9:44 AM, Janakarajan Natarajan
<Janakarajan.Natarajan@amd.com> wrote:
> The function for CPUID 80000001 ECX is set to 0xc0000001. Set it to
> 0x80000001.
>
> Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
> ---
>  arch/x86/kvm/cpuid.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
> index 0bc5c13..b21b1d2 100644
> --- a/arch/x86/kvm/cpuid.h
> +++ b/arch/x86/kvm/cpuid.h
> @@ -43,7 +43,7 @@ static const struct cpuid_reg reverse_cpuid[] = {
>         [CPUID_8086_0001_EDX] = {0x80860001, 0, CPUID_EDX},
>         [CPUID_1_ECX]         = {         1, 0, CPUID_ECX},
>         [CPUID_C000_0001_EDX] = {0xc0000001, 0, CPUID_EDX},
> -       [CPUID_8000_0001_ECX] = {0xc0000001, 0, CPUID_ECX},
> +       [CPUID_8000_0001_ECX] = {0x80000001, 0, CPUID_ECX},
>         [CPUID_7_0_EBX]       = {         7, 0, CPUID_EBX},
>         [CPUID_D_1_EAX]       = {       0xd, 1, CPUID_EAX},
>         [CPUID_F_0_EDX]       = {       0xf, 0, CPUID_EDX},
> --
> 2.7.4
>

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