From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zhongze Liu <blackskygg@gmail.com>
Subject: Re: [RFC v2]Proposal to allow setting up shared memory
 areas between VMs from xl config file
Date: Tue, 18 Jul 2017 22:22:31 +0800
Message-ID: <CAHrd_jqHnp0rA9s02a-f7j1uL2xpQaUi1kScba_u6Yf8smVrTQ@mail.gmail.com>
References: <CAHrd_joL58m=ZGb-afZnuwuWo3Qys=taQ1JN-CRjZ_pbdBhx5w@mail.gmail.com>
 <1ff6bcc6-23d7-0d48-7fe1-666ec97d3a94@arm.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.bemta5.messagelabs.com ([195.245.231.135])
 by lists.xenproject.org with esmtp (Exim 4.84_2)
 (envelope-from <blackskygg@gmail.com>) id 1dXTOU-0002EH-OQ
 for xen-devel@lists.xenproject.org; Tue, 18 Jul 2017 14:22:34 +0000
Received: by mail-lf0-f53.google.com with SMTP id z78so15441833lff.0
 for <xen-devel@lists.xenproject.org>; Tue, 18 Jul 2017 07:22:33 -0700 (PDT)
In-Reply-To: <1ff6bcc6-23d7-0d48-7fe1-666ec97d3a94@arm.com>
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: Julien Grall <julien.grall@arm.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>, Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, edgari@xilinx.com, xen-devel@lists.xenproject.org, Jarvis Roach <Jarvis.Roach@dornerworks.com>
List-Id: xen-devel@lists.xenproject.org
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