XEN Virtual Machine Technology and Its Security Analysis

This paper interprets the essence of XEN and hardware virtualization technology, which make the virtual machine technology become the focus of people＇s attention again because of its impressive performance. The security challenges of XEN are mainly researched from the pointes of view： security bottleneck, security isolation and share, life-cycle, digital copyright protection, trusted virtual machine and managements, etc. These security problems significantly affect the security of the virtual machine system based on XEN. At the last, these security measures are put forward, which will be a useful instruction on enhancing XEN security in the future.     

XEN虚拟机分析

硬件计算能力的极大提高重新激发了人们研究虚拟机软件的热情。XEN虚拟机是目前业界广泛看好的一款开源的虚拟机管理软件，它具有良好的体系结构和优越的性能。随着虚拟机的应用，会出现新的安全问题。介绍了XEN虚拟机的系统结构，重点探讨了基于IntelVT-x的硬件虚拟技术，从处理器管理、内存管理和设备管理三个方面阐释了XEN虚拟机的基本工作原理及其实现的关黻术；在此基础之上，探讨了XEN虚拟机的安全问题并提出了一些安全措施。