[Xen-users] Unable to connect USB devices to an HVM vm

[David Kowis <david@xxxxxx>]

I'm trying to pass through USB devices from the host to an HVM VM, no 
PVUSB or anything. Unfortunately, I can only add a controller, not any 
devices.
my HVM configuration: https://pastebin.com/LGSYNYtw

I can hook up a controller, but as soon as I try to add a device:

root@nosgoth:/etc/xen/conf# xl usbdev-attach vcr hostbus=002 
hostaddr=004
libxl: error: libxl_qmp.c:341:qmp_handle_error_response: Domain 
26:received an error message from QMP server: 'usb-host' is not a valid 
device model name
libxl: error: libxl_device.c:1435:device_addrm_aocomplete: unable to add 
device
libxl_device_usbdev_add failed.


From what I understand the error message is a QEMU error. I'm running 
xen 4.12.0 built from upstream on ubuntu 18.04.
I'm hoping this is a simple configuration option or something, but I'm 
uncertain where to start, and googling the error just finds me QEMU 
problems :(
Thanks in advance!

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