Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756304AbZFRSPb (ORCPT ); Thu, 18 Jun 2009 14:15:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753717AbZFRSPV (ORCPT ); Thu, 18 Jun 2009 14:15:21 -0400 Received: from mx2.redhat.com ([66.187.237.31]:36229 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751920AbZFRSPU (ORCPT ); Thu, 18 Jun 2009 14:15:20 -0400 Date: Thu, 18 Jun 2009 11:13:37 -0700 From: Chris Wright To: Muli Ben-Yehuda Cc: Fenghua Yu , David Woodhouse , "'Linus Torvalds'" , "'Stephen Rothwell'" , "'Andrew Morton'" , "'Ingo Molnar'" , "'Christopher Wright'" , "'Allen Kay'" , "'lkml'" , "'iommu'" Subject: Re: [PATCH 1/2] IOMMU Identity Mapping Support: iommu_identity_mapping definition Message-ID: <20090618181337.GA2500@x200.localdomain> References: <20090327212241.234500000@intel.com> <20090327212321.070229000@intel.com> <20090416001957.GA1527@linux-os.sc.intel.com> <1240135508.3589.75.camel@macbook.infradead.org> <20090513231351.GA22386@linux-os.sc.intel.com> <1242314271.3393.11.camel@macbook.infradead.org> <20090514175944.GA5168@linux-os.sc.intel.com> <20090618180514.GA24082@linux-os.sc.intel.com> <20090618180835.GB6838@il.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090618180835.GB6838@il.ibm.com> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 627 Lines: 16 * Muli Ben-Yehuda (muli@il.ibm.com) wrote: > On Thu, Jun 18, 2009 at 11:05:14AM -0700, Fenghua Yu wrote: > > > IOMMU Identity Mapping Support: iommu_identity_mapping definition > > > > Identity mapping for IOMMU defines a single domain to 1:1 map all > > pci devices to all usable memory. > > Why use VT-d at all in this case? Do you have a use-case in mind? Device assignment. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/