From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH v2] iommu/intel: Exclude devices using RMRRs
 from IOMMU API domains
Date: Tue, 17 Jun 2014 15:44:08 +0200
Message-ID: <20140617134408.GM5821@phenom.ffwll.local>
References: <20140613162901.4550.94476.stgit@bling.home>
 <1402983303.3707.94.camel@ul30vt.home>
 <1402988692.7595.106.camel@i7.infradead.org>
 <1403007757.3707.100.camel@ul30vt.home>
 <1403008864.7595.144.camel@i7.infradead.org>
 <1403010982.3707.123.camel@ul30vt.home>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Content-Disposition: inline
In-Reply-To: <1403010982.3707.123.camel@ul30vt.home>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: chegu_vinod@hp.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Intel Graphics Development <intel-gfx@lists.freedesktop.org>
List-Id: iommu@lists.linux-foundation.org
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