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SubjectRe: [PATCH] x86/cpuid: expose AVX512_4VNNIW and AVX512_4FMAPS features to kvm guest


----- Original Message -----
> From: "Borislav Petkov" <bp@alien8.de>
> To: "Paolo Bonzini" <pbonzini@redhat.com>
> Cc: "Piotr Luc" <Piotr.Luc@intel.com>, kvm@vger.kernel.org, "he chen" <he.chen@linux.intel.com>,
> linux-kernel@vger.kernel.org, tglx@linutronix.de, x86@kernel.org, hpa@zytor.com, mingo@redhat.com, "Luwei Kang"
> <luwei.kang@intel.com>, rkrcmar@redhat.com
> Sent: Saturday, October 29, 2016 2:53:10 PM
> Subject: Re: [PATCH] x86/cpuid: expose AVX512_4VNNIW and AVX512_4FMAPS features to kvm guest
>
> On Sat, Oct 29, 2016 at 08:36:11AM -0400, Paolo Bonzini wrote:
> > Because then it wouldn't be in processor.h.
>
> Easy:
>
> return cpuid_edx(…) & KVM_CPUID_EDX_7_MASK;
>
> at the call site.

Yup. That's what I said before (entry->edx &= cpuid_count_edx(7, 0)).

Paolo

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