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


  • To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Haitao Shan <maillists.shan@xxxxxxxxx>
  • Date: Tue, 2 Nov 2010 11:46:22 +0800
  • Cc:
  • Delivery-date: Mon, 01 Nov 2010 20:47:06 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

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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