From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH v3] xen: prevent PVH Dom0 from having pages
 with more than one ref
Date: Wed, 18 Jun 2014 12:20:44 +0100
Message-ID: <53A1760C.1060606@citrix.com>
References: <1403090283-8858-1-git-send-email-roger.pau@citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
Received: from mail6.bemta4.messagelabs.com ([85.158.143.247])
	by lists.xen.org with esmtp (Exim 4.72)
	(envelope-from <Andrew.Cooper3@citrix.com>) id 1WxDv7-0000v0-0u
	for xen-devel@lists.xenproject.org; Wed, 18 Jun 2014 11:20:49 +0000
In-Reply-To: <1403090283-8858-1-git-send-email-roger.pau@citrix.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>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: Roger Pau Monne <roger.pau@citrix.com>
Cc: xen-devel@lists.xenproject.org, Keir Fraser <keir@xen.org>, Jan Beulich <jbeulich@suse.com>
List-Id: xen-devel@lists.xenproject.org
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