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| 龙芯3号处理器多核虚拟化技术 |
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阮利1,2, 徐鹏1,2, 王慧祥1,2, 祝明发1,2, 肖利民1,2, 唐浩夫1,2
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1.软件开发环境国家重点实验室. 北京航空航天大学, 北京 100191;2.北京航空航天大学 计算机学院, 北京 100191
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| 摘要: |
| MIPS 处理器是精简指令集（RISC）处理器中的一个重要代表，通常应用于嵌入式系统中.近年来，随着MIPS处理器性能的大幅度提升，其应用渐渐扩展到了高性能服务器领域.龙芯3号处理器是MIPS架构的典型代表.在目前的服务器研究领域中，多核技术是一项重要的技术指标，而虚拟化技术是另一项重要的技术指标.当前，虽然虚拟化技术得到了快速发展，但是龙芯3号处理器上的虚拟化技术却鲜有成果.基于龙芯3号处理器的多核虚拟化技术面临许多问题，虚拟多核架构结构复杂、核间通信方式难以模拟等都会为龙芯3号处理器上的多核虚拟化带来困难.分析了多核龙芯3号处理器的硬件结构以及物理多核的核间中断通信方式，在此基础上介绍了龙芯3号处理器上多核虚拟化关键技术.主要在多核处理器虚拟化总体架构设计、虚拟多核结构设计以及虚拟多核的核间通信方式等方面进行了讨论.实验的结果表明，在龙芯3号处理器上，该多核虚拟化方法具有良好的效果. |
| 关键词: MIPS 龙芯3 号 虚拟化 多核 中断通信 |
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| 基金项目:国家自然科学基金（61003015， 61232009）；国家高技术研究发展计划（863）（2011AA01A205）；教育部博士点专项基金（2010110 2110018）；北京市自然科学基金（4122042）；软件开发环境国家重点实验室自主研究课题（SKLSDE-2012ZX-23） |
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| Multi-Core Virtualization on Loongson-3 Processor |
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RUAN Li1,2, XU Peng1,2, WANG Hui-Xiang1,2, ZHU Ming-Fa1,2, XIAO Li-Min1,2, TANG Hao-Fu1,2
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1.State Key Laboratory of Software Development Environment. BeiHang University, Beijing 100191, China;2.School of Computer Science and Engineering, BeiHang University, Beijing 100191, China
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| Abstract: |
| MIPS architecture is an important member of RISC processor family, and it is mainly applied in embedded systems. With its performance improvement, the MIPS processor is gradually used in the field of high-performance servers. The Loongson-3 processor is a typical representative of the MIPS architecture. As a main feature of high-performance server, the multi-core architecture is indispensible. Meanwhile, virtualization technology is another important application for the server, however in recent years the technology rarely has success on the Loongson-3 processor. Combining virtualization technology and multi-core technology on the Loongson-3 processor has much more difficulties as the method to simulate the multi-core architecture is hard and collaborative mechanism among different cores is complex. This paper analyzes the multi-core architecture and communication mechanisms of the multi-core architecture Loongson-3 processor and introduces a virtualization method for the multi-core architecture Loongson-3 processor. It mainly discusses the overall design of virtualization method of the multi-core Loongson-3 processor, the simulation of Loongson-3 multi-core architecture and the virtual inter-processor interrupt communication in the virtual machine. Experimental results show that the presented method provides useful and efficient multi-core virtualization support for the Loongson-3 processor. |
| Key words: MIPS Loongson-3 virtualization multi-core interrupt communication |
