From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julien Grall <julien.grall@arm.com>
Subject: Re: [PATCH 4/6] xentrace: ARM platform DOMID_XEN
 mapping support
Date: Thu, 17 Mar 2016 15:53:45 +0000
Message-ID: <56EAD309.6010807@arm.com>
References: <1458161499-15313-1-git-send-email-ben.sanda@dornerworks.com>
 <1458161499-15313-5-git-send-email-ben.sanda@dornerworks.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>
Received: from mail6.bemta3.messagelabs.com ([195.245.230.39])
 by lists.xenproject.org with esmtp (Exim 4.84_2)
 (envelope-from <julien.grall@arm.com>) id 1agaFE-0001cp-9H
 for xen-devel@lists.xenproject.org; Thu, 17 Mar 2016 15:53:52 +0000
In-Reply-To: <1458161499-15313-5-git-send-email-ben.sanda@dornerworks.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: Benjamin Sanda <ben.sanda@dornerworks.com>, xen-devel@lists.xenproject.org
Cc: Keir Fraser <keir@xen.org>, Ian Jackson <ian.jackson@eu.citrix.com>, Dario Faggioli <dario.faggioli@citrix.com>, Tim Deegan <tim@xen.org>, George Dunlap <george.dunlap@citrix.com>, Jan Beulich <jbeulich@suse.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Paul Sujkov <psujkov@gmail.com>
List-Id: xen-devel@lists.xenproject.org
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