An error i can't understand

[Xovos]

hi

 

my error : internal error: early end of file from monitor, possible problem: 2017-01-16T17:59:10.191482Z qemu-system-x86_64: -device vfio-pci,host=04:00.0,id=hostdev0,x-vga=on,bus=pci.0,addr=0x5: vfio: failed to set iommu for container: Operation not permitted

2017-01-16T17:59:10.191518Z qemu-system-x86_64: -device vfio-pci,host=04:00.0,id=hostdev0,x-vga=on,bus=pci.0,addr=0x5: vfio: failed to setup container for group 16

2017-01-16T17:59:10.191525Z qemu-system-x86_64: -device vfio-pci,host=04:00.0,id=hostdev0,x-vga=on,bus=pci.0,addr=0x5: vfio: failed to get group 16

2017-01-16T17:59:10.191541Z qemu-system-x86_64: -device vfio-pci,host=04:00.0,id=hostdev0,x-vga=on,bus=pci.0,addr=0x5: Device initialization failed

 

i don't know what to do

 

thx for the help