From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Durrant <paul.durrant@citrix.com>
Subject: [PATCH v2 2/2] x86/hvm/emulate: make sure rep I/O
 emulation does not cross GFN boundaries
Date: Fri, 10 Aug 2018 15:48:03 +0100
Message-ID: <20180810144803.12652-3-paul.durrant@citrix.com>
References: <20180810144803.12652-1-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.xenproject.org>
Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6])
 by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from
 <srs0=3eyy=kz=citrix.com=prvs=753083691=paul.durrant@srs-us1.protection.inumbo.net>)
 id 1fo8i0-0006j9-1S
 for xen-devel@lists.xenproject.org; Fri, 10 Aug 2018 14:48:08 +0000
In-Reply-To: <20180810144803.12652-1-paul.durrant@citrix.com>
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.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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