[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


  • To: Keir Fraser <keir@xxxxxxx>
  • From: Haitao Shan <maillists.shan@xxxxxxxxx>
  • Date: Thu, 4 Nov 2010 15:21:19 +0800
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Tim Deegan <Tim.Deegan@xxxxxxxxxx>
  • Delivery-date: Thu, 04 Nov 2010 00:22:10 -0700
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=bJKBo93ttG2QSTmzTLFUfWi+jNvWXE0fSjem13eEQF4MTsTg0wc7ZyJw9i53pVvj7y uj39MVNYegIZGyerlgLKaAuitmiZ4PhxfeX4d06IjsSu9JIXA/615/ajB0t8CEJMymbp tr9Bhs2HEXYkalU3dEnxAzIqFGOsIBBKec2rA=
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

OK. I did not realize this was a stable tree. Originally, I thought it
was a testing tree, which was used for periodic 4.0 update releases.
And by default, xsave is not enabled.
I would agree with you. It is more meaningful when this feature gets
more tests before doing a backport.
Thanks!

Shan Haitao

2010/11/4 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
>>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>
>
>

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.