From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zhongze Liu <blackskygg@gmail.com>
Subject: [RFC] DOMCTL_memattrs_op : a new DOMCTL to play with
	stage-2 page attributes
Date: Sat, 1 Jul 2017 04:15:41 +0800
Message-ID: <CAHrd_joO-DWyK=x_piKC6Pfx2LY3HDLQGMUoRF4PFoauDSSiaA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
List-Unsubscribe: <https://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: <https://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: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, zhongzeliu <zhongzeliu@hustunique.com>, Jan Beulich <jbeulich@suse.com>, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org
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