From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com>
Subject: Re: [PATCH V3 12/29] x86/vvtd: Add MMIO handler for VVTD
Date: Fri, 20 Oct 2017 10:51:56 +0100
Message-ID: <20171020095156.onsvfwbcm54pcs5r@dhcp-3-128.uk.xensource.com>
References: <1506049330-11196-1-git-send-email-tianyu.lan@intel.com>
 <1506049330-11196-13-git-send-email-tianyu.lan@intel.com>
 <20171019113454.oeknwbrszunu7acp@dhcp-3-128.uk.xensource.com>
 <20171020025832.GF74825@op-computing>
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: <20171020025832.GF74825@op-computing>
List-Unsubscribe: <https://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: <https://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: Chao Gao <chao.gao@intel.com>, Lan Tianyu <tianyu.lan@intel.com>, xen-devel@lists.xen.org, andrew.cooper3@citrix.com, George.Dunlap@eu.citrix.com, ian.jackson@eu.citrix.com, jbeulich@suse.com, konrad.wilk@oracle.com, sstabellini@kernel.org, tim@xen.org, wei.liu2@citrix.com, kevin.tian@intel.com
List-Id: xen-devel@lists.xenproject.org
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