From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751738AbeCTPQC (ORCPT ); Tue, 20 Mar 2018 11:16:02 -0400 Received: from verein.lst.de ([213.95.11.211]:37679 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751694AbeCTPQB (ORCPT ); Tue, 20 Mar 2018 11:16:01 -0400 Date: Tue, 20 Mar 2018 16:16:00 +0100 From: Christoph Hellwig To: Konrad Rzeszutek Wilk Cc: Ingo Molnar , Christoph Hellwig , Tom Lendacky , Konrad Rzeszutek Wilk , x86@kernel.org, linux-kernel@vger.kernel.org, Muli Ben-Yehuda , iommu@lists.linux-foundation.org, David Woodhouse Subject: Re: use generic dma-direct and swiotlb code for x86 V3 Message-ID: <20180320151600.GA23920@lst.de> References: <20180319103826.12853-1-hch@lst.de> <20180319152737.GK1110@char.us.oracle.com> <20180319152840.GA28041@lst.de> <20180320083751.nrpt64dsmpqbhzc6@gmail.com> <20180320084412.GA16337@lst.de> <20180320090351.2qnwcsauhodrqxdj@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 20, 2018 at 11:25:21AM +0000, Konrad Rzeszutek Wilk wrote: > Are you testing with swiotlb=force? I've done swiotlb=force testing with earlier versions, and otherwise relied on a VM with more the 4gb of memory and emulated devices without 64-bit capability. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: use generic dma-direct and swiotlb code for x86 V3 Date: Tue, 20 Mar 2018 16:16:00 +0100 Message-ID: <20180320151600.GA23920@lst.de> References: <20180319103826.12853-1-hch@lst.de> <20180319152737.GK1110@char.us.oracle.com> <20180319152840.GA28041@lst.de> <20180320083751.nrpt64dsmpqbhzc6@gmail.com> <20180320084412.GA16337@lst.de> <20180320090351.2qnwcsauhodrqxdj@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Konrad Rzeszutek Wilk Cc: Tom Lendacky , Konrad Rzeszutek Wilk , x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig , iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Muli Ben-Yehuda , David Woodhouse , Ingo Molnar List-Id: iommu@lists.linux-foundation.org On Tue, Mar 20, 2018 at 11:25:21AM +0000, Konrad Rzeszutek Wilk wrote: > Are you testing with swiotlb=force? I've done swiotlb=force testing with earlier versions, and otherwise relied on a VM with more the 4gb of memory and emulated devices without 64-bit capability.