From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shuai Ruan <shuai.ruan@linux.intel.com>
Subject: Re: [V3] x86/xsaves: fix overwriting between
 non-lazy/lazy xsaves
Date: Wed, 9 Mar 2016 17:46:51 +0800
Message-ID: <14070.3770136044$1457517088@news.gmane.org>
References: <1457421564-17288-1-git-send-email-shuai.ruan@linux.intel.com>
 <56DEB48D02000078000DA499@prv-mh.provo.novell.com>
Reply-To: Shuai Ruan <shuai.ruan@linux.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
Content-Disposition: inline
In-Reply-To: <56DEB48D02000078000DA499@prv-mh.provo.novell.com>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
To: Jan Beulich <JBeulich@suse.com>
Cc: andrew.cooper3@citrix.com, keir@xen.org, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org
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