Libvirt是一套在linux上用C编写的虚拟化操作工具接口。其目的是提供一个稳定的支持Xen，QEME和KVM虚拟化平台的C（也支持Python) API

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes).The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms, it currently also support QEmu and KVM.