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Re: [Qemu-devel] [PATCH v2] i386: Introduce ARAT CPU feature


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v2] i386: Introduce ARAT CPU feature
Date: Mon, 25 May 2015 16:16:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0


On 25/05/2015 16:06, Jan Kiszka wrote:
>  static void pc_compat_2_3(MachineState *machine)
>  {
> +    x86_cpu_compat_set_features("Westmere", FEAT_6_EAX, 0, CPUID_6_EAX_ARAT);
> +    x86_cpu_compat_set_features("SandyBridge", FEAT_6_EAX, 0,
> +                                CPUID_6_EAX_ARAT);
> +    x86_cpu_compat_set_features("IvyBridge", FEAT_6_EAX, 0, 
> CPUID_6_EAX_ARAT);
> +    x86_cpu_compat_set_features("Haswell-noTSX", FEAT_6_EAX, 0,
> +                                CPUID_6_EAX_ARAT);
> +    x86_cpu_compat_set_features("Haswell", FEAT_6_EAX, 0, CPUID_6_EAX_ARAT);
> +    x86_cpu_compat_set_features("Broadwell-noTSC", FEAT_6_EAX, 0,
> +                                CPUID_6_EAX_ARAT);

noTSX.

Also, I think this doesn't cover Q35.  Eduardo has patches to clean that
up so that (I think) less duplication is required.

Paolo

> +    x86_cpu_compat_set_features("Broadwell", FEAT_6_EAX, 0, 
> CPUID_6_EAX_ARAT);
>  }
>  



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