[Xen-devel] [Patch 0/4] Refining Xsave/Xrestore support - Versio

To:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject:	[Xen-devel] [Patch 0/4] Refining Xsave/Xrestore support - Version 2
From:	Haitao Shan <maillists.shan@xxxxxxxxx>
Date:	Fri, 29 Oct 2010 09:24:34 +0800
Cc:
Delivery-date:	Thu, 28 Oct 2010 18:25:33 -0700
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=1ssHB5pfkPVuGxvNaArUc8rsagWFPGI63vGZmpCtxhY=; b=dAw5fI9JXyLX6RroiCLmVR2t/bMS4SjznrBJ18DPXC/P538FeuApM2RIzfHT5eCU4p fsXiZg6a1dyMpr9TUbHVsnnXvVHN2abYLxXHJahMo6wLLi5kG1baLOXncX88R2QNe8oG tAYlsK8FYSodhcCp494mhz16Gkb9pVMvBbFMQ=
Domainkey-signature:	a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=BvQSvNSSB9kLQFi6pwNPHlXbu7pL0FdNGh51zIu685DNPX6JtV1Z9zUv1IG/PU/VUI I5zhRUJhOMn8N+WYUtRwCI3AcRVZj3cNXJnveJ9goAYMYU3AEXyabtL4cvLNhHFEMR75 FC0AAb+/t6nuPWRk/+5wLcA3oDW1yN8qe4Jlk=
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

Hi, Keir,

The following patches refines Xen support for CPU Xsave/Xrestore
support. There are four patches included.
Patch 1/4:
   Cleaning up existing Xsave code in Xen.
       Replace xfeature_low and xfeature_high with a u64 variable
xfeature_mask.
       In structure hvm_vcpu, rename xfeature_mask to xcr0
       Provide EDX:EAX with all bits set to 1 for XSAVE and XRSTOR as
spec recommends
Patch 2/4:
   Adding Xsave/Xrestore support for PV guests. Feature is exposed
via CPUID. XSETBV is trapped and emulated by Xen (via GP#).
Patch 3/4:
   Expose AVX to guest OSs.
Patch 4/4:
   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.

I tried to read the related the email thread and incorporated the
comments. These are version 2 of the patch series.

Shan Haitao

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

WARNING - OLD ARCHIVES

xen-devel

[Xen-devel] [Patch 0/4] Refining Xsave/Xrestore support - Version 2