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xen-devel
Re: [Xen-devel] pci pass-through, NIC card
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To: |
"Kay, Allen M" <allen.m.kay@xxxxxxxxx> |
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Subject: |
Re: [Xen-devel] pci pass-through, NIC card |
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From: |
Jean Guyader <jean.guyader@xxxxxxxxxxxxx> |
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Date: |
Fri, 28 Mar 2008 18:51:36 +0000 |
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Cc: |
"Li, Haicheng" <haicheng.li@xxxxxxxxx>, "You, Yongkang" <yongkang.you@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Han, Weidong" <weidong.han@xxxxxxxxx> |
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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
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