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Re: [Xen-devel] PCI Passthrough Problems/Questions

On Mon, 2010-10-25 at 13:40 -0400, Konrad Rzeszutek Wilk wrote:

> What do you see on your Xen serial output? I presume you cranked up logging:
> loglevel=all guest_lvl=all iommu=verbose on your Xen command line.
> Is there anything that shows up when you get the 'Failed to assign.." ?

The only messages I get on the serial console after setting those
parameters on the xen.gz kernel line in grub (and rebooting, of course)
are the following:

(XEN) [VT-D]iommu.c:1496: d0:PCI: unmap bdf = 2:0.0
(XEN) [VT-D]iommu.c:1364: d1:PCI: map bdf = 2:0.0
(XEN) domctl.c:848:d0 XEN_DOMCTL_assign_device: assign device (2:0.0)
(XEN) event_channel.c:192:d0 EVTCHNOP failure: domain 1, error -22


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