设备虚拟化方法研究与实现

摘要

针对虚拟机监控器在IO虚拟化方面存在的性能瓶颈,分析了现有IO虚拟化模型存在的问题,提出了一种基于IO处理机的协作型虚拟机监控器.建立了基于IO处理机的IO虚拟化模型,实现了对客户机操作系统IO访问请求的处理,并进一步给出了该方法下从设备发现到功能模拟等关键技术.实验结果表明,基于IO处理机的IO虚拟化模型能够提供更为稳定的系统环境,并能有效提高整个系统性能.%To avoid the performance bottleneck of virtual machine monitor in IO virtualization, problems in current model of IO virtua-lization are analyzed, then a collaborative virtual machine monitor based on IO process machine is proposed. IO virtualization model based on IO process machine is constructed, and processing of IO access request from guest OS is implemented, further, key technologies from device-finding to functional simulation in this model are presented. Implementation principle indicated that IO virtualization model based on IO process machine can provide a stable system environment, and effectively improve the whole system performance.