From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754417AbYIVSga (ORCPT ); Mon, 22 Sep 2008 14:36:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752959AbYIVSgT (ORCPT ); Mon, 22 Sep 2008 14:36:19 -0400 Received: from casper.infradead.org ([85.118.1.10]:56196 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752822AbYIVSgS (ORCPT ); Mon, 22 Sep 2008 14:36:18 -0400 Date: Mon, 22 Sep 2008 11:36:19 -0700 From: Arjan van de Ven To: Joerg Roedel Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, iommu@lists.linux-foundation.org, David Woodhouse , Muli Ben-Yehuda , Amit Shah , Ingo Molnar , FUJITA Tomonori Subject: Re: [PATCH 0/9][RFC] stackable dma_ops for x86 Message-ID: <20080922113619.5075e7e4@infradead.org> In-Reply-To: <1222107681-8185-1-git-send-email-joerg.roedel@amd.com> References: <1222107681-8185-1-git-send-email-joerg.roedel@amd.com> Organization: Intel X-Mailer: Claws Mail 3.5.0 (GTK+ 2.12.11; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 22 Sep 2008 20:21:12 +0200 Joerg Roedel wrote: > Hi, > > this patch series implements stackable dma_ops on x86. This is useful > to be able to fall back to a different dma_ops implementation if one > can not handle a particular device (as necessary for example with > paravirtualized device passthrough or if a hardware IOMMU only > handles a subset of available devices). isn't the right answer here to have a per device DMA ops instead ? -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org