From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@suse.com>
Subject: Re: [PATCH 1/3] VMX: Properly adjuest the status of pi
 descriptor
Date: Mon, 23 May 2016 06:30:31 -0600
Message-ID: <5743140702000078000EDCE8@prv-mh.provo.novell.com>
References: <1463734431-22353-1-git-send-email-feng.wu@intel.com>
 <1463734431-22353-2-git-send-email-feng.wu@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>
In-Reply-To: <1463734431-22353-2-git-send-email-feng.wu@intel.com>
Content-Disposition: inline
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: Feng Wu <feng.wu@intel.com>
Cc: kevin.tian@intel.com, keir@xen.org, george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, dario.faggioli@citrix.com, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org
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