From: Wei Liu <wei.liu2@citrix.com>
To: Huaitong Han <huaitong.han@intel.com>
Cc: wei.liu2@citrix.com, ian.campbell@citrix.com,
stefano.stabellini@eu.citrix.com, andrew.cooper3@citrix.com,
ian.jackson@eu.citrix.com, xen-devel@lists.xen.org,
jbeulich@suse.com, keir@xen.org
Subject: Re: [PATCH V10 5/5] x86/hvm: pkeys, add pkeys support for cpuid handling
Date: Thu, 4 Feb 2016 09:48:40 +0000 [thread overview]
Message-ID: <20160204094840.GK23178@citrix.com> (raw)
In-Reply-To: <1454569234-25283-1-git-send-email-huaitong.han@intel.com>
On Thu, Feb 04, 2016 at 03:00:34PM +0800, Huaitong Han wrote:
> This patch adds pkeys support for cpuid handing.
>
> Pkeys hardware support is CPUID.7.0.ECX[3]:PKU. software support is
> CPUID.7.0.ECX[4]:OSPKE and it reflects the support setting of CR4.PKE.
>
> X86_FEATURE_OSXSAVE depends on guest X86_FEATURE_XSAVE, but cpu_has_xsave
> function reflects hypervisor X86_FEATURE_XSAVE, it is fixed too.
>
> Signed-off-by: Huaitong Han <huaitong.han@intel.com>
> Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
prev parent reply other threads:[~2016-02-04 9:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 7:00 [PATCH V10 5/5] x86/hvm: pkeys, add pkeys support for cpuid handling Huaitong Han
2016-02-04 9:48 ` Wei Liu [this message]
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