On 09/07/2015 10:17, Richard Henderson wrote:
> @@ -405,7 +405,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
> {
>      },
>      [FEAT_XSAVE] = {
>          .feat_names = cpuid_xsave_feature_name,
> -        .cpuid_eax = 0xd,
> +        .cpuid_eax = CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XGETBV1,

KVM does implements CPUID_XSAVE_XSAVEC though.  Should you set
.tcg_features instead?

Paolo

>          .cpuid_needs_ecx = true, .cpuid_ecx = 1,
>          .cpuid_reg = R_EAX,
>          .tcg_features = 0,

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