From mboxrd@z Thu Jan  1 00:00:00 1970
From: George Dunlap <George.Dunlap@eu.citrix.com>
Subject: Re: [PATCH 2/7] iommu: make use of type-safe BFN and
 MFN in exported functions
Date: Tue, 10 Jul 2018 15:29:02 +0100
Message-ID: <CAFLBxZawfrdo+xG4Py7V-421eyy0fmuBN8bkp7nJWYU8i+szCA@mail.gmail.com>
References: <20180212104714.1922-1-paul.durrant@citrix.com>
 <20180212104714.1922-3-paul.durrant@citrix.com>
 <5AAAA30A02000078001B2447@prv-mh.provo.novell.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=l1dt=j2=gmail.com=dunlapg@srs-us1.protection.inumbo.net>)
 id 1fctdZ-0003zH-1G
 for xen-devel@lists.xenproject.org; Tue, 10 Jul 2018 14:29:05 +0000
Received: by mail-qt0-x244.google.com with SMTP id e19-v6so4246802qtp.8
 for <xen-devel@lists.xenproject.org>; Tue, 10 Jul 2018 07:29:03 -0700 (PDT)
In-Reply-To: <5AAAA30A02000078001B2447@prv-mh.provo.novell.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: Jan Beulich <JBeulich@suse.com>
Cc: Kevin Tian <kevin.tian@intel.com>, Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Julien Grall <julien.grall@arm.com>, Paul Durrant <paul.durrant@citrix.com>, Jun Nakajima <jun.nakajima@intel.com>, xen-devel <xen-devel@lists.xenproject.org>
List-Id: xen-devel@lists.xenproject.org
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