From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <Paul.Durrant@citrix.com>
Subject: Re: [PATCH v2 3/3] x86/ioreq server: Add HVMOP to map
 guest ram with p2m_ioreq_server to an ioreq server
Date: Tue, 19 Apr 2016 10:01:50 +0000
Message-ID: <6394687c22c74a9494f3687a79a828a1@AMSPEX02CL03.citrite.net>
References: <1459421618-5991-1-git-send-email-yu.c.zhang@linux.intel.com>
 <1459421618-5991-4-git-send-email-yu.c.zhang@linux.intel.com>
 <57083EA202000078000E623A@prv-mh.provo.novell.com>
 <570B871E.7040703@linux.intel.com>
 <570BDF8E02000078000E63F1@prv-mh.provo.novell.com>
 <570CC1E2.1010408@linux.intel.com>
 <570D1D6E02000078000E64E4@prv-mh.provo.novell.com>
 <570F695E.4080907@linux.intel.com>
 <AADFC41AFE54684AB9EE6CBC0274A5D15F821907@SHSMSX101.ccr.corp.intel.com>
 <9caaef74564d4f51b3d6c535d5a927b1@AMSPEX02CL03.citrite.net>
 <5715F9F6.30407@linux.intel.com>
 <95bd969136a642e59ef576a9ea26ccef@AMSPEX02CL03.citrite.net>
 <5715FF19.6030909@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>
In-Reply-To: <5715FF19.6030909@linux.intel.com>
Content-Language: en-US
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: "Yu, Zhang" <yu.c.zhang@linux.intel.com>, Kevin Tian <kevin.tian@intel.com>, Jan Beulich <jbeulich@suse.com>, "Nakajima, Jun" <jun.nakajima@intel.com>
Cc: "Keir (Xen.org)" <keir@xen.org>, Andrew Cooper <Andrew.Cooper3@citrix.com>, "Tim (Xen.org)" <tim@xen.org>, George Dunlap <George.Dunlap@citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, "Lv,
 Zhiyuan" <zhiyuan.lv@intel.com>
List-Id: xen-devel@lists.xenproject.org
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