基于KVM-QEMU与Libvirt的虚拟化资源池构建

摘要

虚拟化是云计算平台的关键技术,桌面虚拟化是虚拟化技术的主要应用之一.利用该技术可将用户的终端设备与桌面环境解耦合,每个用户的桌面环境存放在服务器端,用户使用终端设备,通过网络访问桌面环境.其核心技术为服务器虚拟化,而虚拟化资源池是利用服务器虚拟化技术构建于Linux服务器之上,可为终端接入设备提供适合桌面系统环境的一个资源集合,是实现桌面虚拟化的基础支持.Libvirt是支持KVM虚拟化工具的C函数库,本文在深入分析Libvirt对KVM-QEMU的支持以及KVM-QEMU的虚拟化实现原理之后,借助Libvirt库设计并且实现支持资源节点动态接入的虚拟化资源池.%Virtualization is a key technology of cloud computing,and desktop virtualization is one of the main applications of virtualization technology.It can decouple of the user' s terminal device with the desktop environment,and each user' s desktop environment is stored in the server-side.Users access desktop environment through network by using terminal equipment,and the core technology is server virtualization.Virtualized resource pool is a collection of resources,which is built in the Linux servers by using server virtualization technologies.It can provide suitable desktop environments for terminal equipments,and it' s the foundation for desktop virtualization.Libvirt is a C library that supports KVM virtualization.Mter analyzing the Libvirt library and KVM-QEMU virtualization principle,this paper proposes a method to design and implement a virtualized resource pool which supports resource nodes dynamic access.