Re: [Libvir] how to setup usb/serial ports with libvirt & kvm (Fedora 7)

John Davey wrote:

I am experimenting with the following Redhat 9 kvm on Fedora 7.

How do I add a USB device with Libvirt? Specifically I'd like to add a usb-serial converter for logging data. "Man qemu-kvm" shows -usbdevice devname to add a USB device but I cannot find out how to do this with libvirt.

Libvirt will only use "-usbdevice table" or "-usbdevice mouse" depending on the input device you've selected. A hack I've found useful for modifying the kvm command-line arguments is to change the <emulator> tag to point to a shell script that invokes kvm as you'd like. For example, /etc/libvirt/kvm-wrapper containing: #!/bin/sh exec /usr/bin/qemu-kvm "$@" -usbdevice host:1234:5678 might do the trick. -jim