Xen是一个监视与x86兼容的计算机的开源虚拟机程序。Xen使用一个叫做hypervisor的软件层来调节对真实硬件的访问，实现在一台单独的计算机上运行多个子操作系统。本指南将介绍Xen的原理以及虚拟化解决方案之SUSE Linux Enterprise Server-Xen is an x86-compatible computer monitoring and open source virtual machine program. Xen uses a software layer called a hypervisor to regulate access to the real hardware to achieve on a single computer run multiple sub-operating system. This guide will introduce the principles of Xen virtualization solutions as well as SUSE Linux Enterprise Server