-device 'vmgenid,guid=54d1c06c-8f5b-440f-b5b2-6eab1380e13d' \
-device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' \
-device 'usb-tablet,id=tablet,bus=uhci.0,port=1' \
-device 'vmgenid,guid=54d1c06c-8f5b-440f-b5b2-6eab1380e13d' \
-device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' \
-device 'usb-tablet,id=tablet,bus=uhci.0,port=1' \