On 3/17/21 5:45 AM, Melissa Nuño wrote: We've already sorted this out through IRC, but for future reference, the device in question was /dev/input device that was passed through via qemu:arg. Anything that's under qemu:arg is opaque to libvirt, it's not inspected by libvirt in any way and thus if it happens to be a device that needs to be allowed in CGroups, well bad luck. What should be used is proper XML representation. If there is none, please do open an RFE as documented in command line passhtrough: https://libvirt.org/drvqemu.html#qemucommand In this specific case, the following XML can be used: <input type='passthrough' bus='virtio'> <source evdev='/dev/input/XXX'/> </input> However, what might be missing is that currently libvirt does not support 'grab_all=on,repeat=on'. But we should file an RFE for that. Michal