From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753538Ab3KDQJw (ORCPT ); Mon, 4 Nov 2013 11:09:52 -0500 Received: from smtp.citrix.com ([66.165.176.89]:42731 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751707Ab3KDQJu (ORCPT ); Mon, 4 Nov 2013 11:09:50 -0500 X-IronPort-AV: E=Sophos;i="4.93,633,1378857600"; d="scan'208";a="70356238" Message-ID: <5277C6B3.1000500@citrix.com> Date: Mon, 4 Nov 2013 17:09:23 +0100 From: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Ian Campbell CC: , , Stefano Stabellini , David Vrabel Subject: Re: [Xen-devel] [PATCH v3] p2m: use GNTTABOP_unmap_and_duplicate if available References: <1383579524-12465-1-git-send-email-roger.pau@citrix.com> <1383580147.8826.104.camel@kazak.uk.xensource.com> In-Reply-To: <1383580147.8826.104.camel@kazak.uk.xensource.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/11/13 16:49, Ian Campbell wrote: > On Mon, 2013-11-04 at 16:38 +0100, Roger Pau Monne wrote: >> The new GNTTABOP_unmap_and_duplicate operation > > I don't see this op in mainline Xen anywhere... > > Was it part of Stefano's original swiotlb for ARM stuff? If so we've > dropped that approach for ARM and the new solution doesn't require > hypervisor changes so the upstreaming of this hypercall ended, so you'd > have to pick it up and complete that work if you want to use it. It's not part of the ARM stuff, the patch to add that OP is here: http://lists.xen.org/archives/html/xen-devel/2013-07/msg02825.html I guess I will need to resend that also.