From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.xen@gmail.com>
Subject: Re: [PATCH] x86/Intel: don't probe CPUID faulting on
	family 0xf CPUs
Date: Mon, 11 Nov 2013 09:41:00 +0000
Message-ID: <CEA656AC.3DB95%keir.xen@gmail.com>
References: <52809F870200007800101A09@nat28.tlf.novell.com>
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To: Jan Beulich <JBeulich@suse.com>, xen-devel <xen-devel@lists.xenproject.org>
Cc: Jinsong Liu <jinsong.liu@intel.com>, Jun Nakajima <jun.nakajima@intel.com>
List-Id: xen-devel@lists.xenproject.org

On 11/11/2013 08:12, "Jan Beulich" <JBeulich@suse.com> wrote:

> These are known to not support the feature, so we can save ourselves
> from emitting the resulting #GP fault recovery related message (which
> might worry people looking at the logs).
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Keir Fraser <keir@xen.org>

> --- a/xen/arch/x86/cpu/intel.c
> +++ b/xen/arch/x86/cpu/intel.c
> @@ -204,7 +204,7 @@ static void __devinit init_intel(struct
> detect_ht(c);
> }
>  
> - if (smp_processor_id() == 0) {
> + if (c == &boot_cpu_data && c->x86 == 6) {
> if (probe_intel_cpuid_faulting())
> set_bit(X86_FEATURE_CPUID_FAULTING, c->x86_capability);
> } else if (boot_cpu_has(X86_FEATURE_CPUID_FAULTING)) {
> 
> 
>