From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jean-Philippe Brucker <jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
Subject: Re: [PATCH v3 03/10] iommu/sva: Manage process address spaces
Date: Tue, 25 Sep 2018 11:32:32 +0100
Message-ID: <5aff8dc0-9ce7-5018-e78e-770279681cbc@arm.com>
References: <20180920170046.20154-1-jean-philippe.brucker@arm.com>
	<20180920170046.20154-4-jean-philippe.brucker@arm.com>
	<09933fce-b959-32e1-b1f3-0d4389abf735@linux.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
In-Reply-To: <09933fce-b959-32e1-b1f3-0d4389abf735-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Content-Language: en-US
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/iommu>,
	<mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/iommu/>
List-Post: <mailto:iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
List-Help: <mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/iommu>,
	<mailto:iommu-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=subscribe>
Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
To: Lu Baolu <baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>, "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" <iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
Cc: "kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org" <kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, "ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org" <ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, "linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "ilias.apalodimas-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org" <ilias.apalodimas-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Will Deacon <Will.Deacon-5wv7dgnIgG8@public.gmane.org>, "okaya-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org" <okaya-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, "alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org" <alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, "liguozhu-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org" <liguozhu-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>, Robin Murphy <Robin.Murphy-5wv7dgnIgG8@public.gmane.org>, "christian.koenig-5C7GfCeVMHo@public.gmane.org" <christian.koenig-5C7GfCeVMHo@public.gmane.org>
List-Id: iommu@lists.linux-foundation.org
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