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Re: [Xen-devel] [PATCH]x86:xsaveopt: Enable xsaveopt feature in Xen and

from [Jan Beulich] [Permanent Link][Original]
To: "keir.fraser@xxxxxxxxxxxxx" <keir.fraser@xxxxxxxxxxxxx>, "Fengzhe Zhang" <fengzhe.zhang@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH]x86:xsaveopt: Enable xsaveopt feature in Xen and guest
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Fri, 17 Dec 2010 09:09:36 +0000
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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>>> On 17.12.10 at 07:31, "Zhang, Fengzhe" <fengzhe.zhang@xxxxxxxxx> wrote:
> --- a/xen/arch/x86/i387.c     Fri Dec 03 06:37:48 2010 +0000
> @@ -152,6 +155,8 @@
>  /* Cached xcr0 for fast read */
>  DEFINE_PER_CPU(uint64_t, xcr0);
>  
> +u32 cpu_has_xsaveopt;

bool_t __read_mostly?

Jan



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