On Fri, 16 Jun 2023 11:23:05 +0800
Tao Su <[email protected]> wrote:
> Considering the case of FEAT_7_1_EAX being 0 and FEAT_7_1_EDX being
> non-zero,
Can you clarify when/why that happens?
> guest may report wrong maximum number sub-leaves in leaf
> 07H. So add FEAT_7_1_EDX to adjust feature level.
>
> Fixes: eaaa197d5b11 ("target/i386: Add support for AVX-VNNI-INT8 in CPUID
> enumeration")
>
> Signed-off-by: Tao Su <[email protected]>
> Reviewed-by: Xiaoyao Li <[email protected]>
> ---
> target/i386/cpu.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index 1242bd541a..e8a70c35d2 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -6778,6 +6778,7 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **errp)
> x86_cpu_adjust_feat_level(cpu, FEAT_6_EAX);
> x86_cpu_adjust_feat_level(cpu, FEAT_7_0_ECX);
> x86_cpu_adjust_feat_level(cpu, FEAT_7_1_EAX);
> + x86_cpu_adjust_feat_level(cpu, FEAT_7_1_EDX);
> x86_cpu_adjust_feat_level(cpu, FEAT_8000_0001_EDX);
> x86_cpu_adjust_feat_level(cpu, FEAT_8000_0001_ECX);
> x86_cpu_adjust_feat_level(cpu, FEAT_8000_0007_EDX);
