Xen users - Jul 2010 - Fwd: bogus motherboard? IOMMU does not work

Hi all,

I would like to get my system to work with IOMMU.

(The long-term goal is VGA passthru.)

System is as follows:

CPU: Core 2 Duo E6600
MB: Foxconn G9657MA-8EKRS2H (w. latest bios: 631F1P61)
Virtualization support is enabled in BIOS. (These is only one option.)

Hypervisor: xen 4.0.0 from Debian, AMD64
Xen config: iommu=verbose
output of xen dmesg is attached.

HVM domains work (lasd tried with xen 3.2), but IOMMU is disabled,
according to xen dmesg.

What can I do to increase the chances of getting this to work?

Thank you for your help:

    Kristof Csillag





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