From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <Paul.Durrant@citrix.com>
Subject: Re: [PATCH v12 05/11] x86/mm: add HYPERVISOR_memory_op
 to acquire guest resources
Date: Fri, 20 Oct 2017 10:10:33 +0000
Message-ID: <da03957025cf4c53b33c0fe34deebc24@AMSPEX02CL03.citrite.net>
References: <20171017132432.24093-1-paul.durrant@citrix.com>
 <20171017132432.24093-6-paul.durrant@citrix.com>
 <f2077243-32dd-8907-8ba2-b11cb240c8bc@linaro.org>
 <b7e94b0469b847669f9c0f9992069d9f@AMSPEX02CL03.citrite.net>
 <759ace10-543f-346c-74fc-c2dd8f80a92a@linaro.org>
 <01fde88658c54fb6a3b903060a6a4650@AMSPEX02CL03.citrite.net>
 <1496a647-e2f9-bab3-c7f9-5a766d7c28d2@linaro.org>
 <c8e508bf672f4582ba40412ed05c9c06@AMSPEX02CL03.citrite.net>
 <59E8DCA60200007800188376@prv-mh.provo.novell.com>
 <2f17e24d-0191-e46b-64aa-ac3abba515a7@linaro.org>
 <59E8E51B020000780018840F@prv-mh.provo.novell.com>
 <1c3d3841-74bd-3548-1b2b-edf64f9994d8@linaro.org>
 <fe676649-cb9d-5a20-3ed1-93c1125eff11@linaro.org>
 <59E9B2CB020000780018872A@prv-mh.provo.novell.com>
 <89b3ddce8f934c06b9fa27ab5d766461@AMSPEX02CL03.citrite.net>
 <7b6b14ba-694d-3fcc-c8ab-878b6b4e26d4@linaro.org>
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 <prvs=45946757b=Paul.Durrant@citrix.com>)
 id 1e5UGK-00081M-5b
 for xen-devel@lists.xenproject.org; Fri, 20 Oct 2017 10:10:44 +0000
In-Reply-To: <7b6b14ba-694d-3fcc-c8ab-878b6b4e26d4@linaro.org>
Content-Language: en-US
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@linaro.org>, 'Jan Beulich' <JBeulich@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Andrew Cooper <Andrew.Cooper3@citrix.com>, "Tim (Xen.org)" <tim@xen.org>, George Dunlap <George.Dunlap@citrix.com>, Julien Grall <julien.grall@arm.com>, "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>, Ian Jackson <Ian.Jackson@citrix.com>, Daniel De Graaf <dgdegra@tycho.nsa.gov>, Roger Pau Monne <roger.pau@citrix.com>
List-Id: xen-devel@lists.xenproject.org
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