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Re: [Xen-devel] [PATCH V6 5/5] x86/hvm: pkeys, add pkeys support for cpuid handling

To: Huaitong Han <huaitong.han@xxxxxxxxx>
From: Wei Liu <wei.liu2@xxxxxxxxxx>
Date: Tue, 19 Jan 2016 09:19:32 +0000
Cc: keir@xxxxxxx, george.dunlap@xxxxxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxx, jbeulich@xxxxxxxx, wei.liu2@xxxxxxxxxx
Delivery-date: Tue, 19 Jan 2016 09:19:43 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Tue, Jan 19, 2016 at 03:30:59PM +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.
> 

I will (again) defer this to x86 maintainers.

Wei.

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References:
- [Xen-devel] [PATCH V6 0/5] x86/hvm: pkeys, add memory protection-key support
  - From: Huaitong Han
- [Xen-devel] [PATCH V6 5/5] x86/hvm: pkeys, add pkeys support for cpuid handling
  - From: Huaitong Han

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