From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [PATCH v2 04/27] ARM: GICv3 ITS: map ITS command
	buffer
Date: Tue, 21 Mar 2017 16:48:46 -0700 (PDT)
Message-ID: <alpine.DEB.2.10.1703211648390.11679@sstabellini-ThinkPad-X260>
References: <20170316112030.20419-1-andre.przywara@arm.com>
 <20170316112030.20419-5-andre.przywara@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.bemta6.messagelabs.com ([193.109.254.103])
 by lists.xenproject.org with esmtp (Exim 4.84_2)
 (envelope-from <sstabellini@kernel.org>) id 1cqTWG-0006o8-Nw
 for xen-devel@lists.xenproject.org; Tue, 21 Mar 2017 23:48:52 +0000
In-Reply-To: <20170316112030.20419-5-andre.przywara@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: Andre Przywara <andre.przywara@arm.com>
Cc: xen-devel@lists.xenproject.org, Julien Grall <julien.grall@arm.com>, Stefano Stabellini <sstabellini@kernel.org>, Shanker Donthineni <shankerd@codeaurora.org>, Vijay Kilari <vijay.kilari@gmail.com>
List-Id: xen-devel@lists.xenproject.org
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