[ovirt-users] changes in oVirt 4.3 and vGPU?

Hi, I just installed a Tesla T4 card, installed the nvidia's RPM, I see the mdev_type stuff etc. Following their instructions, I'm trying to set a Windows 10 VM to use the vGPU (the VM works without any vGPU), I get this error in the event... VM Win-10-test is down with error. Exit message: internal error: qemu unexpectedly closed the monitor: 2019-02-08T14:01:11.287955Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future 2019-02-08T14:01:11.313878Z qemu-kvm: -device vfio-pci,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/486b48a3-01c7-4a67-9727-279813bae0e8,display=off,bus=pci.0,addr=0x8: vfio error: 486b48a3-01c7-4a67-9727-279813bae0e8: error getting device from group 0: Input/output error Verify all devices in group 0 are bound to vfio-<bus> or pci-stub and not already in use. Could someone explain to me what am I missing and what to do? I don't see any docs about it. Thanks