From mboxrd@z Thu Jan  1 00:00:00 1970
From: Razvan Cojocaru <rcojocaru@bitdefender.com>
Subject: Re: [for-4.7] x86/emulate: synchronize LOCKed
	instruction emulation
Date: Thu, 14 Apr 2016 08:56:49 +0300
Message-ID: <570F3121.2080009@bitdefender.com>
References: <1460550374-4344-1-git-send-email-rcojocaru@bitdefender.com>
 <570F2C3302000078000E66E6@prv-mh.provo.novell.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <570F2C3302000078000E66E6@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: tim@xen.org, wei.liu2@citrix.com, george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, xen-devel@lists.xen.org, paul.durrant@citrix.com, keir@xen.org
List-Id: xen-devel@lists.xenproject.org
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