From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefano Stabellini <sstabellini@kernel.org>
Subject: [PATCH 6/6] xen/docs: how to map a page between dom0
 and domU using iomem
Date: Tue, 26 Feb 2019 15:07:07 -0800
Message-ID: <1551222427-21749-6-git-send-email-sstabellini@kernel.org>
References: <alpine.DEB.2.10.1902261501020.20689@sstabellini-ThinkPad-X260>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]
 helo=us1-amaz-eas2.inumbo.com)
 by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from
 <SRS0=CyNJ=RB=kernel.org=sstabellini@srs-us1.protection.inumbo.net>)
 id 1gylod-0002Ls-E0
 for xen-devel@lists.xenproject.org; Tue, 26 Feb 2019 23:07:11 +0000
In-Reply-To: <alpine.DEB.2.10.1902261501020.20689@sstabellini-ThinkPad-X260>
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org>
To: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <stefanos@xilinx.com>, julien.grall@arm.com, sstabellini@kernel.org
List-Id: xen-devel@lists.xenproject.org
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