From mboxrd@z Thu Jan  1 00:00:00 1970
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: Branch Trace Storage for guests and
	VPMUinitialization
Date: Wed, 25 Feb 2015 11:31:31 -0500
Message-ID: <54EDF8E3.2060609@oracle.com>
References: <5C9C3B9BEF1B354596EAE3D6800D876BA3BF8F@e1.gdata.de>
	<54ECB114.6040101@oracle.com>
	<5C9C3B9BEF1B354596EAE3D6800D876BA441F4@e1.gdata.de>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <5C9C3B9BEF1B354596EAE3D6800D876BA441F4@e1.gdata.de>
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>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: Kevin.Mayer@gdata.de
Cc: xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org
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==