摘 要
随着计算机技术的不断发展，尤其是硬件技术的不断革新，计算机性能取得了巨大的提高。然而，性能过剩带来的浪费与低使用率成了当下计算机科技领域的一大痛点。计算机虚拟化（Virtualization）技术在这样的背景下诞生，就是为了解决上述问题。虚拟化技术是一种软硬件协同工作的方式，它对计算机硬件资源或系统服务进行合理的分化与重组。使同一个硬件设备或系统服务能够服务于不同的应用环境中。现阶段虚拟化技术在很多领域都有很高的实用价值，如云计算机，嵌入式系统等。
首先，通过分析研究当前虚拟化技术的研究现状和不足。然后，在此基础上设计并实现了虚拟机通信层Hypervisor Communication Layer（HCL），使用跨虚拟机通信的方法，解决了虚拟机之间通信的难题。进而解决了专用设备虚拟化的问题。最后，对HCL的特点进行总结并对其发展方向进行了展望。
关键词 虚拟化，专用设备驱动，虚拟机通信层，硬件虚拟化，跨系统通信
ABSTRACT
With the continuous development of information and computer technology, especially the improvement of the hardware capabilities, the performance of the computer equipment has been greatly enhanced. However the waste caused by the overqualified performance has been a big pain in the field of computer science and technology.Virtualization was born in this context, which aim to solve above problems. Virtualization is a way to cooperate closely with both hardware and software,which divide and reorganize hardware resources and software services, rationally. So that the same hardware device or system service can serve in different system environments. At this stage, virtualization technology has high practical value in many fields, such as cloud computers and embedded systems.First of all, to clarify the deficiency of current virtualization research. Based on this, a Hypervisor Communication Layer is designed and implemented to solve the problem of communication between virtual machines by using cross virtual machine communication. With the help of Hypervisor Communication Layer the virtualization problems for dedicated devices can be solved. Finally, the characteristics of HCL are summarized and its development direction also forecasted. Key Words Virtualization, Dedicated device Driver, Hypervisor Communication Layer, Hardware Virtualization, Cross OS communication
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