From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <paul.durrant@citrix.com>
Subject: [PATCH v2 5/6] x86/viridian: make the threshold for
	HvNotifyLongSpinWait tunable
Date: Mon, 20 Mar 2017 17:08:20 +0000
Message-ID: <1490029701-4311-6-git-send-email-paul.durrant@citrix.com>
References: <1490029701-4311-1-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=245da84ed=Paul.Durrant@citrix.com>)
 id 1cq0nZ-00074p-0q
 for xen-devel@lists.xenproject.org; Mon, 20 Mar 2017 17:08:49 +0000
In-Reply-To: <1490029701-4311-1-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: Andrew Cooper <andrew.cooper3@citrix.com>, Paul Durrant <paul.durrant@citrix.com>, Jan Beulich <jbeulich@suse.com>
List-Id: xen-devel@lists.xenproject.org
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