[libvirt-users] Bypass USB to Xen VM

Lorenzo Milesi maxxer at ufficyo.com
Mon Jun 20 12:03:30 UTC 2011

Hi. I'm trying to bypass an USB device from the host to a paravirtualized Xen VM.
I found this page:
which says how to bypass usb and pci devices to guests. It says that works on KVM only, but is that notice about PCI or about ALL?

Anyway I tried both from virt-manager and from virsh edit domain by adding the following:

    <hostdev mode='subsystem' type='usb'>
        <vendor id='0x03f0'/>
        <product id='0x0114'/>

but the edit is ignored, right after I save, if I do a dumpxml the "hostdev" stanza is not present.

Why? Any other way to bypass? usbip?


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