From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergey Dyasli <sergey.dyasli@citrix.com>
Subject: [PATCH v3 7/9] x86/np2m: implement sharing of np2m
	between vCPUs
Date: Tue, 3 Oct 2017 16:21:02 +0100
Message-ID: <20171003152104.1432-8-sergey.dyasli@citrix.com>
References: <20171003152104.1432-1-sergey.dyasli@citrix.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: <20171003152104.1432-1-sergey.dyasli@citrix.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: xen-devel@lists.xen.org
Cc: Sergey Dyasli <sergey.dyasli@citrix.com>, Kevin Tian <kevin.tian@intel.com>, Jun Nakajima <jun.nakajima@intel.com>, George Dunlap <george.dunlap@eu.citrix.com>, Andrew Cooper <Andrew.Cooper3@citrix.com>, Tim Deegan <tim@xen.org>, George Dunlap <george.dunlap@citrix.com>, Jan Beulich <jbeulich@suse.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
List-Id: xen-devel@lists.xenproject.org
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