Re: [Xen-devel] pci pass-through, NIC card

[Jean Guyader <jean.guyader@xxxxxxxxxxxxx>]

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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