A. Libvit is a set of library functions, called by other techniques, to manage virtual machines on the machine
B. KVM, Xen and LXC, etc., can call the api provided by Libvir to manage the virtualization platform
C. Libvit is a closed source project, it is a very powerful management tool
D. Libvirt provides programming interfaces in multiple languages, which can be directly programmed to call the external interface provided by Libvir to realize the operation of the virtual machine
