From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shannon Zhao <zhaoshenglong@huawei.com>
Subject: Re: [PATCH] xen/arm: map_dev_mmio_region: The iomem
 permission check should be done on MFN
Date: Wed, 15 Jun 2016 09:43:25 +0800
Message-ID: <5760B2BD.8090804@huawei.com>
References: <1465905026-12887-1-git-send-email-julien.grall@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>
In-Reply-To: <1465905026-12887-1-git-send-email-julien.grall@arm.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: Julien Grall <julien.grall@arm.com>, xen-devel@lists.xen.org
Cc: sstabellini@kernel.org, wei.liu2@citrix.com, Shannon Zhao <shannon.zhao@linaro.org>
List-Id: xen-devel@lists.xenproject.org
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