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

[Paolo Bonzini]

----- Original Message -----
> From: "Borislav Petkov" <bp@xxxxxxxxx>
> To: "Paolo Bonzini" <pbonzini@xxxxxxxxxx>
> Cc: "Piotr Luc" <Piotr.Luc@xxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, "he chen" <he.chen@xxxxxxxxxxxxxxx>,
> linux-kernel@xxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, x86@xxxxxxxxxx, hpa@xxxxxxxxx, mingo@xxxxxxxxxx, "Luwei Kang"
> <luwei.kang@xxxxxxxxx>, rkrcmar@xxxxxxxxxx
> 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(â) & KVM_CPUID_EDX_7_MASK;
> 
> at the call site.

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

Paolo