I have not been able to passthrough any PCI devices using the
latest xen-unstable. I have a DQ45CB, and have successfully passed devices
to guests using 3.4.1.
The latest c/s in my copy of xen-unstable is 20145. I
just started playing around with unstable yesterday, so I can’t tell you if
earlier revisions worked. I’ve tried with various dom0 kernels, the
current 2.6.18.8-xen branch, a xenified 2.6.29.6, and a pvops 2.6.31-rc6, and in
every case I get the same error. I’ve tried both putting pci= in the
config file, and hot-adding the device using xm pci-attach. In every case,
the xm command (either create or pci-attach) fails with the message “Error:
Timed out waiting for device model action”. The guests in every case are
HVM guests, some flavors of Windows, as well as the Knoppix 5.3.1
DVD.
The relevant xm dmesg output is:
(XEN) PCI add device
00:1b.0
(XEN) [VT-D]iommu.c:1292:d0 domain_context_unmap:PCIe: bdf =
0:1b.0
(XEN) [VT-D]iommu.c:1178:d0 domain_context_mapping:PCIe: bdf
= 0:1b.0
(XEN) [VT-D]io.c:284:d0 VT-d irq bind: m_irq = 37 device = 3
intx = 0
(XEN) [VT-D]iommu.c:1292:d0 domain_context_unmap:PCIe: bdf =
0:1b.0
(XEN) [VT-D]iommu.c:1178:d0 domain_context_mapping:PCIe: bdf
= 0:1b.0
And the messages from qemu-log:
dm-command: hot insert pass-through pci dev
hot add pci slot -2 exceed.
Please let me know what else I need to supply to help resolve
this problem. If I need to enable debugging messages, let me know the best
way to do this.
Doug Magee
djmagee@xxxxxxxxxxxx
