I was setting up my last server tonight and was having issues getting a vm running via passing through a gpu, getting iommu error as follows:   internal error: process exited while connecting to monitor: 2016-12-18T02:12:40.093534Z qemu-system-x86_64: -device vfio-pci,host=07:00.0,id=hostdev0,bus=pci.2,addr=0x1: vfio: failed to set iommu for container: Operation not permitted 2016-12-18T02:12:40.093567Z qemu-system-x86_64: -device vfio-pci,host=07:00.0,id=hostdev0,bus=pci.2,addr=0x1: vfio: