echo 0000:00:07.0 > /sys/bus/pci/devices/0000:00:07.0/driver/unbind
echo vfio-pci > /sys/bus/pci/devices/0000:00:06.0/driver_override
echo vfio-pci > /sys/bus/pci/devices/0000:00:07.0/driver_override
echo 0000:00:07.0 > /sys/bus/pci/devices/0000:00:07.0/driver/unbind
echo vfio-pci > /sys/bus/pci/devices/0000:00:06.0/driver_override
echo vfio-pci > /sys/bus/pci/devices/0000:00:07.0/driver_override