From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH] [RESEND] VT-d: Fix iommu map page for mmio pages Date: Thu, 02 Oct 2008 14:56:55 +0300 Message-ID: <48E4B707.5060702@redhat.com> References: <0122C7C995D32147B66BF4F440D3016301C7D130@pdsmsx415.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, "Kay, Allen M" , "Yang, Sheng" , Anthony Liguori , Amit Shah , benami@il.ibm.com, Muli Ben-Yehuda To: "Han, Weidong" Return-path: Received: from mx2.redhat.com ([66.187.237.31]:36288 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752669AbYJBL7D (ORCPT ); Thu, 2 Oct 2008 07:59:03 -0400 In-Reply-To: <0122C7C995D32147B66BF4F440D3016301C7D130@pdsmsx415.ccr.corp.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: Han, Weidong wrote: > From 61028d958dc7c57ee02de32ea89b025dccb9650d Mon Sep 17 00:00:00 2001 > From: Weidong Han > Date: Thu, 25 Sep 2008 23:32:02 +0800 > Subject: [PATCH] Map mmio pages into VT-d page table > > Assigned device could DMA to mmio pages, so also need to map mmio pages > into VT-d page table. > > Well, Muli says at least on one machine this allows on guest to kill the host. What are we doing with this? If it's a hardware bug which is planned to be fixed (or is already fixed), great, but I need to know. -- error compiling committee.c: too many arguments to function