Hi list I did some KVM testing with help from Alexander Graf and Chris Wright back in March, trying to passthrough various USB 2.0 PCI cards and onboard Intel USB hubs. I never got it to work completely, I ended up with some timing issues or similar, causing artifacts in the picture from a connected DVB-T USB tuner (http://thread.gmane.org/gmane.comp.emulators.kvm.devel/45027/focus=49764). Since then I've upgraded my system to a "more recent" VT-d capable system; an Intel DQ57TM motherboard with a Core i5 670 CPU. In addition I bought a PCIe USB card (Asrock USB 3.0 PCI Express) to see if the MSI/MSI-X support on the PCIe card would change anything. Unfortunately the new PCIe card doesn't work either - now I just get a "xhci_hcd 0000:00:07.0: WARN urb submitted to disabled ep" error on the client side, when I try to access the DVB-T device (which btw is registered correctly in the guest and its driver is also loaded correctly). This makes me wonder: Has anyone actually succeeded in doing passthrough of a internal/external USB 2.0/3.0 card with KVM+VT-d? If yes, with what hardware? Thanks Kenni -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
