Re: [Qemu-devel] [PATCH v3] uq/master: Expose CPUID leaf 7 only for -cpu host

[Jan Kiszka]

On 2012-05-25 11:12, Eduardo Habkost wrote:
> diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> index 65d9af6..91a657a 100644
> --- a/target-i386/cpu.c
> +++ b/target-i386/cpu.c
> @@ -238,6 +238,8 @@ typedef struct x86_def_t {
>      /* Store the results of Centaur's CPUID instructions */
>      uint32_t ext4_features;
>      uint32_t xlevel2;
> +    /* The feature bits on CPUID[EAX=7,ECX=0].EBX */
> +    uint32_t cpuid_7_0_ebx_features;
>  } x86_def_t;
>  
>  #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
> @@ -521,6 +523,12 @@ static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
>      x86_cpu_def->ext_features = ecx;
>      x86_cpu_def->features = edx;
>  
> +    if (kvm_enabled() && x86_cpu_def->level >= 7) {
> +        x86_cpu_def->cpuid_7_0_ebx_features = 
> kvm_arch_get_supported_cpuid(kvm_state, 0x7, 0, R_EBX);

checkpatch.pl?

Jan

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