From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <Paul.Durrant@citrix.com>
Subject: Re: [PATCH v6 09/14] mm / iommu: include need_iommu()
 test in iommu_use_hap_pt()
Date: Thu, 13 Sep 2018 08:34:08 +0000
Message-ID: <5062cbcfbb4840fda05640eeeeb226f7@AMSPEX02CL03.citrite.net>
References: <20180823094711.21376-1-paul.durrant@citrix.com>
 <20180823094711.21376-10-paul.durrant@citrix.com>
 <5B925EF202000078001E655B@prv1-mh.provo.novell.com>
 <1ed1d6509b3043e89ccfe352a9b64ad4@AMSPEX02CL03.citrite.net>
 <5B978F3202000078001E722A@prv1-mh.provo.novell.com>
 <AADFC41AFE54684AB9EE6CBC0274A5D191301A51@SHSMSX101.ccr.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
Received: from all-amaz-eas1.inumbo.com ([34.197.232.57])
 by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from
 <srs0=o9xv=l3=citrix.com=prvs=787a2ff47=paul.durrant@srs-us1.protection.inumbo.net>)
 id 1g0N5J-00061C-AL
 for xen-devel@lists.xenproject.org; Thu, 13 Sep 2018 08:34:45 +0000
In-Reply-To: <AADFC41AFE54684AB9EE6CBC0274A5D191301A51@SHSMSX101.ccr.corp.intel.com>
Content-Language: en-US
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org>
To: Kevin Tian <kevin.tian@intel.com>, Jan Beulich <JBeulich@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>, Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>, Andrew Cooper <Andrew.Cooper3@citrix.com>, George Dunlap <George.Dunlap@citrix.com>, Julien Grall <julien.grall@arm.com>, "Nakajima, Jun" <jun.nakajima@intel.com>, xen-devel <xen-devel@lists.xenproject.org>
List-Id: xen-devel@lists.xenproject.org
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=