From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean Guyader Subject: Re: pci pass-through, NIC card Date: Fri, 28 Mar 2008 18:51:36 +0000 Message-ID: <47ED3E38.8090301@eu.citrix.com> References: <47EBBD85.8090904@eu.citrix.com> <47ECD388.8010602@eu.citrix.com> <1FE6DD409037234FAB833C420AA843ECF23456@orsmsx424.amr.corp.intel.com> <47ED2FD2.7030509@eu.citrix.com> <1FE6DD409037234FAB833C420AA843ECF235D1@orsmsx424.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1FE6DD409037234FAB833C420AA843ECF235D1@orsmsx424.amr.corp.intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Kay, Allen M" Cc: "Li, Haicheng" , "You, Yongkang" , xen-devel@lists.xensource.com, "Han, Weidong" List-Id: xen-devel@lists.xenproject.org Kay, Allen M wrote: > I would assume you see "Intel VT-d has been enabled" in you full log > file, correct? > Yes, there is this line. > Given that dom0 devices are working OK - this means VT-d translation is > working correctly for dom0. > > The current code maps entire guest memory in VT-d by sharing with p2m > table. The vt-d page fault you are seeing should only happen if the > guest is using some DMA address that is not coverred by the P2m page > table - which is shouldn't have happened. > > I have seen this type of fault if the BIOS is not programming VT-d HW > correctly. > > Who's the vendor of this Stoakley system? We can try to duplicate the > problem here if we can get hold of the same system. Here, the reference of the machine : Phoenix TrustedCore(tm) Server Copyright 1985-2007 Phoenix Technologies Ltd. All Rights Reserved Supermicro X7DWE+/X7DWN+ BIOS Rev 1.0 CPU = 2 Processor(s) Detected, Cores per Processor = 4 Intel(R) Xeon(R) CPU X5376 @ 2.80GHz Intel(R) Xeon(R) CPU X5376 @ 2.80GHz DRAM Type : DDR2-800, FSB at 1600MHz 8192M System RAM Passed 8192 KB L2 Cache System BIOS shadowed Video BIOS shadowed Fixed Disk 0: Maxtor 6Y160M0 ATAPI CD-ROM: MATSHITADVD-ROM SR-8178 -- Jean Guyader