Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753631AbYLAOdd (ORCPT ); Mon, 1 Dec 2008 09:33:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752006AbYLAOdX (ORCPT ); Mon, 1 Dec 2008 09:33:23 -0500 Received: from mx2.redhat.com ([66.187.237.31]:52294 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751022AbYLAOdW (ORCPT ); Mon, 1 Dec 2008 09:33:22 -0500 Message-ID: <4933F5A7.8020408@redhat.com> Date: Mon, 01 Dec 2008 16:33:11 +0200 From: Avi Kivity User-Agent: Thunderbird 2.0.0.18 (X11/20081119) MIME-Version: 1.0 To: Joerg Roedel CC: FUJITA Tomonori , muli@il.ibm.com, kvm@vger.kernel.org, weidong.han@intel.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mingo@redhat.com, amit.shah@redhat.com Subject: Re: [PATCH 3/9] add frontend implementation for the IOMMU API References: <20081201173830B.fujita.tomonori@lab.ntt.co.jp> <20081201120026.GF17719@amd.com> <20081201130209.GA21615@il.ibm.com> <20081201231852P.fujita.tomonori@lab.ntt.co.jp> <20081201142727.GL29705@8bytes.org> In-Reply-To: <20081201142727.GL29705@8bytes.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 633 Lines: 18 Joerg Roedel wrote: > Hmm, is there any hardware IOMMU with which we can't emulate domains by > partitioning the IO address space? This concept works for GART and > Calgary. > > Is partitioning secure? Domain X's user could program its hardware to dma to domain Y's addresses, zapping away Domain Y's user's memory. -- error compiling committee.c: too many arguments to function -- 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/