Qt Virtual Machine Manager provides a graphical tool for
administering virtual machines for QEMU/KVM, Xen, LXC, OpenVZ,
VBox, VMWare, HyperV, IBM PowerVM, Bhyve virtual machines
and other Virtual Entities.
Start, stop, add or remove virtual devices, connect to a
graphical or serial console, and see resource usage
statistics for existing VMs on local or remote machines.
Uses libvirt as the back-end management API.
Uses Spice/VNC viewers for control.