When assign one PCI device, qemu fail to parse the command line: qemu-system_x86 -smp 2 -m 1024 -hda /path/to/img -pcidevice host=00:19.0 Error: qemu-system-x86_64: Parameter 'id' expects an identifier Identifiers consist of letters, digits, '-', '.', '_', starting with a letter. pcidevice argument parse error; please check the help text for usage Could not add assigned device host=00:19.0 https://bugs.launchpad.net/qemu/+bug/597932 This issue caused by qemu-kvm commit b560a9ab9be06afcbb78b3791ab836dad208a239. Best Regards, Xudong Hao -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html