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RE: [Xen-devel] [VT-D]iommu.c:775: iommu_page_fault: iommu->reg = ffff828bfff57000 [SOLVED]

>I found out, that the internal graphiccard and the PEG card can't work
>beside each other. i add a pci card too and the bug message is gone.
>It seems that xen was trying during the boot process to hide a non
>existing device, which caused that problem.

If possible, stick with PCIe devices.  Conventional PCI device passthrough is 
more complicated as it requires pass through all PCI devices behind the same 
PCIe-to-PCI bridge.


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