Re: [Xen-devel] [PATCH 4/6] x86/hvm: Move hvm_funcs.cpuid_intercept() handling into hvm_cpuid()

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 11/16/2016 07:31 AM, Andrew Cooper wrote:
> @@ -3700,6 +3701,14 @@ void hvm_cpuid(unsigned int input, unsigned int *eax, 
> unsigned int *ebx,
>  
>          *ebx &= hvm_featureset[FEATURESET_e8b];
>          break;
> +
> +    case 0x8000001c:
> +        if ( !(v->arch.xcr0 & XSTATE_LWP) )
> +            *eax = 0;
> +        else if ( cpu_has_svm && cpu_has_lwp )
> +            /* Turn on available bit and other features specified in 
> lwp_cfg. */
> +            *eax = (*edx & v->arch.hvm_svm.guest_lwp_cfg) | 1;
> +        break;
>      }

You don't think this whole case should be under cpu_has_svm (or
X86_VENDOR_AMD)?


-boris



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