From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <paul.durrant@citrix.com>
Subject: [PATCH v4 8/8] x86/hvm: serialize trap injecting
	producer and consumer
Date: Tue, 17 Jan 2017 17:29:56 +0000
Message-ID: <1484674196-19951-9-git-send-email-paul.durrant@citrix.com>
References: <1484674196-19951-1-git-send-email-paul.durrant@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>
Received: from mail6.bemta6.messagelabs.com ([193.109.254.103])
 by lists.xenproject.org with esmtp (Exim 4.84_2)
 (envelope-from <prvs=183c9fafe=Paul.Durrant@citrix.com>)
 id 1cTXa7-0000Zz-5c
 for xen-devel@lists.xenproject.org; Tue, 17 Jan 2017 17:30:03 +0000
In-Reply-To: <1484674196-19951-1-git-send-email-paul.durrant@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.xenproject.org
Cc: Paul Durrant <paul.durrant@citrix.com>, Jan Beulich <jbeulich@suse.com>
List-Id: xen-devel@lists.xenproject.org
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