setmem Sets the allocated memory for a guest. setmaxmem Sets maximum memory limit for the hypervisor. setvcpus Changes number of virtual CPUs assigned to a guest. vcpuinfo Displays virtual CPU information about a guest. vcpupin Controls the virtual CPU affinity of a guest. domblkstat Displays block device statistics for a running guest. domifstat Displays network interface statistics for a running guest. attach-device Attach a device to a guest, using a device definition in an XML file. attach-disk Attaches a new disk device to a guest. attach-interface Attaches a new network interface to a guest. detach-device Detach a device from a guest, takes the same kind of XML descriptions as command attach-device. detach-disk Detach a disk device from a guest. detach-interface Detach a network interface from a guest.