From mboxrd@z Thu Jan  1 00:00:00 1970
From: Venu Busireddy <venu.busireddy@oracle.com>
Subject: Re: [early RFC] ARM PCI Passthrough design document
Date: Wed, 15 Mar 2017 10:11:35 -0500
Message-ID: <20170315151135.GA8164@vbusired-lt>
References: <20170308191209.GG8530@char.us.oracle.com>
 <20170309025951.mkhjdikddeukwwrx@MacBook-Pro-de-Roger.local>
 <20170309111759.GB12547@char.us.oracle.com>
 <e2ad9490-67da-8f27-672f-f3a90447ad09@linaro.org>
 <20170310002934.GA29177@localhost.localdomain>
 <20170310032318.sfja3vqjg5u3j4ew@MacBook-Pro-de-Roger.local>
 <20170310152843.GH15705@char.us.oracle.com>
 <20170315120728.vwnjq4aykfgtq2yv@dhcp-3-128.uk.xensource.com>
 <20170315124201.GE28643@localhost.localdomain>
 <20170315125650.h6uozbqbrxpgsech@dhcp-3-128.uk.xensource.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 <venu.busireddy@oracle.com>) id 1coAaw-0001pT-TQ
 for xen-devel@lists.xenproject.org; Wed, 15 Mar 2017 15:12:11 +0000
Content-Disposition: inline
In-Reply-To: <20170315125650.h6uozbqbrxpgsech@dhcp-3-128.uk.xensource.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: Roger Pau Monn? <roger.pau@citrix.com>
Cc: "Edgar Iglesias (edgar.iglesias@xilinx.com)" <edgar.iglesias@xilinx.com>, Stefano Stabellini <sstabellini@kernel.org>, Wei Chen <Wei.Chen@arm.com>, Steve Capper <Steve.Capper@arm.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Jiandi An <anjiandi@codeaurora.org>, Julien Grall <julien.grall@linaro.org>, Punit Agrawal <punit.agrawal@arm.com>, Campbell Sean <scampbel@codeaurora.org>, xen-devel <xen-devel@lists.xenproject.org>, alistair.francis@xilinx.com, "manish.jaggi@caviumnetworks.com" <manish.jaggi@caviumnetworks.com>, Shanker Donthineni <shankerd@codeaurora.org>
List-Id: xen-devel@lists.xenproject.org
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