Re: [Xen-devel] Re: [Patch 0/3] Refining Xsave/Xrestore support - Version 3

[Keir Fraser <keir@xxxxxxx>]

On 04/11/2010 01:37, "Haitao Shan" <maillists.shan@xxxxxxxxx> wrote:

> Hi, Keir,
> 
> Can you pull the 4 xsave-related patches to Xen4.0 tree?

Are they really suitable for immediate backport to a stable branch?

 --Keir

> I have tried. Applying the patches is quite straight forward. Patch 4
> needs some minor modifications since there are some general function
> changes recently in unstable tree (while these are not in Xen4.0). I
> have made this for you.
> All patches are Signed-off-by: Haitao Shan <haitao.shan@xxxxxxxxx> and
> Han Weidong <weidong.han@xxxxxxxxx>
> 
> Thanks!
> 
> Shan Haitao
> 
> 2010/11/2 Haitao Shan <maillists.shan@xxxxxxxxx>:
>> Hi, Keir,
>> 
>> The following patches refines Xen support for CPU Xsave/Xrestore
>> support. There are three patches included.
>> Patch 1/3:
>>  Adding Xsave/Xrestore support for PV guests. Feature is exposed
>> via CPUID. XSETBV is trapped and emulated by Xen (via GP#).
>> Patch 2/3:
>>  Expose AVX to guest OSs.
>> Patch 3/3:
>>  Adding guest save/restore support when Xsave/Xrestore are available.
>>      Adding a pair of hypercalls for PV guest
>>      Adding a new data chunk for HVM guest.
>> 
>> These are version 3 of the patch series.
>> 
>> Shan Haitao
>> 
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