Hi,
I'm trying to pass an USB port (or hub) to a kvm/qemu guest, to
no avail.
To find out which physical port I can use, I plugged a device
into the port, and dmesg on the host says:
usb 3-3: new high-speed USB device number 10 using xhci_hcd
Which device on the host is that?
lspci | grep -i usb
00:14.0 USB controller: Intel Corporation C610/X99 series chipset USB xHCI Host Controller (rev 05)
00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #2 (rev 05)
00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #1 (rev 05)
lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 480M
|__ Port 6: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 13: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 14: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
I tried to add the USB port to the domain by editing it and adding:
<hostdev mode='subsystem' type='usb' managed='yes'>
<source>
<vendor id='0x1d6b'/>
<product id='0x0003'/>
</source>
</hostdev>
The domain (a windows 10) starts with that, but no USB port shows
up. The documentation about this totally sucks, and I couldn't
find any answer that would work with a search engine, either.
When I try to use the bus and port attributes, I'm getting domain
verification errors from virsh edit.
Is it even possible to pass an usb port or hub through? I just
need one USB port in the guest.
