From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753625AbcBALBB (ORCPT ); Mon, 1 Feb 2016 06:01:01 -0500 Received: from smtp.citrix.com ([66.165.176.89]:3321 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753009AbcBALA7 (ORCPT ); Mon, 1 Feb 2016 06:00:59 -0500 X-IronPort-AV: E=Sophos;i="5.22,379,1449532800"; d="scan'208";a="328857270" Date: Mon, 1 Feb 2016 11:00:57 +0000 From: Wei Liu To: Andy Lutomirski CC: "Michael S. Tsirkin" , Cornelia Huck , Joerg Roedel , KVM , linux-s390 , "Benjamin Herrenschmidt" , Stefano Stabellini , Sebastian Ott , "linux-kernel@vger.kernel.org" , Christoph Hellwig , "Christian Borntraeger" , David Vrabel , , , Paolo Bonzini , Linux Virtualization , David Woodhouse , "David S. Miller" , "Martin Schwidefsky" , Subject: Re: [Xen-devel] [PATCH v5 00/10] virtio DMA API, yet again Message-ID: <20160201110057.GC10990@citrix.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-DLP: MIA2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Nice work, Andy. On Thu, Jan 28, 2016 at 06:31:13PM -0800, Andy Lutomirski wrote: > This switches virtio to use the DMA API on Xen and if requested by > module option. > > This fixes virtio on Xen, and it should break anything because it's > off by default on everything except Xen PV on x86. > What is your setup? My understanding is that virtio doesn't work on PV guest as of now because a suitable transport is missing. Wei.