Re: [Xen-devel] collecting info on platforms with VT-d BIOS problems

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Hello Andrew,

Seems this problem is on a lot of Asus motherboards, i have a similar (not the 
same) motherboard (P5Q-EM DO), and have had the same problem.
But Weidongs recent workarounds in xen-unstable don't disable vt-d anymore but 
ignore the RMRR, so if you wish to give Xen and vt-d a try again, I think it 
will work for you as well.

--
Sander


Monday, January 25, 2010, 4:25:31 PM, you wrote:

> Kay, Allen M wrote:
>> We would like to collect information on platforms that have problem
>> with VT-d PCI device passthrough using non-IGD PCI devices.  Note
>> that IGD (integrated display device) device passthrough code is still
>> being worked on.
>> 
>> If you have encountered  VT-d problems on a particular platform using
>> latest xen-unstable, please provide the following information so that
>> we can work with OEM's to get their BIOS's fixed:

> I've had issues with the ASUS P5E-VM DO on the latest (0902) BIOS.  I
> had given up trying to get this fixed, so I don't have a Xen install on
> there at the moment.

> I investigated the problem in May last year and discovered that one of
> the RMRR entries had a base address that was greater than its limit
> address.  This didn't seem to happen when using integrated graphics.

> Let me know if this is sufficient information, or should I be getting
> Xen booting again so you can see the log, or perhaps a dump of the DMAR
> table is sufficient?

> Thanks




-- 
Best regards,
 Sander                            mailto:linux@xxxxxxxxxxxxxx


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