From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Lan, Tianyu" <tianyu.lan@intel.com>
Subject: Re: Discussion about virtual iommu support for Xen guest
Date: Sun, 26 Jun 2016 21:42:52 +0800
Message-ID: <647d0b74-cecc-db33-1033-f7201c8a0af5@intel.com>
References: <5746B3FA.6020401@intel.com> <5746DF93.8090803@citrix.com>
 <57480327.60609@intel.com> <78d122f0-c773-7fa3-1258-c551937c508e@intel.com>
 <575081E8.6070609@citrix.com>
 <AADFC41AFE54684AB9EE6CBC0274A5D15F88B441@SHSMSX101.ccr.corp.intel.com>
 <57518B78.6060604@citrix.com>
 <alpine.DEB.2.10.1606031724280.2590@sstabellini-ThinkPad-X260>
 <AADFC41AFE54684AB9EE6CBC0274A5D15F89160A@SHSMSX101.ccr.corp.intel.com>
 <alpine.DEB.2.10.1606071056430.14126@sstabellini-ThinkPad-X260>
 <AADFC41AFE54684AB9EE6CBC0274A5D15F89EBD6@SHSMSX101.ccr.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <AADFC41AFE54684AB9EE6CBC0274A5D15F89EBD6@SHSMSX101.ccr.corp.intel.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: "Tian, Kevin" <kevin.tian@intel.com>, Stefano Stabellini <sstabellini@kernel.org>
Cc: "yang.zhang.wz@gmail.com" <yang.zhang.wz@gmail.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, "jbeulich@suse.com" <jbeulich@suse.com>, Andrew Cooper <andrew.cooper3@citrix.com>, "Dong,
 Eddie" <eddie.dong@intel.com>, "Nakajima, Jun" <jun.nakajima@intel.com>, "anthony.perard@citrix.com" <anthony.perard@citrix.com>, "ian.jackson@eu.citrix.com" <ian.jackson@eu.citrix.com>, Roger Pau Monne <roger.pau@citrix.com>
List-Id: xen-devel@lists.xenproject.org
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