| 基于KVM的物理资源动态分配与管理技术 |
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| 引用本文： | 姚远,戴华东,张卫华. 基于KVM的物理资源动态分配与管理技术[J]. 计算机应用与软件, 2011, 28(1) |
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| 作者姓名： | 姚远 戴华东 张卫华 |
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| 作者单位： | 国防科学技术大学计算机学院,湖南,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划项目(2007AA01Z177,2006AA01A104) |
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| 摘 要： | 针对目前虚拟环境下各种I/O设备访问模型普遍存在的性能与共享互为矛盾的问题,以虚拟化技术为基础,结合Linux设备热插拔技术,提出并实现了一种基于KVM的物理资源动态分配与管理技术。该技术基于共享内存及信号机制实现物理资源管理器与虚拟机管理进程之间的通信,利用hypercall机制实现客户操作系统与宿主操作系统之间的通信,通过向虚拟中断控制器注入虚拟中断的方式通知客户操作系统有关设备的添加与删除,最后基于PCI-Passthrough实现客户操作系统对物理设备的直接访问。测试证明这种技术在提高设备共享能力的同时,又保证了设备的访问性能。
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| 关 键 词： | PassthroughI/O 物理资源动态管理 虚拟机 |
DYNAMIC ASSIGNMENT AND MANAGEMENT METHOD FOR PHYSICAL RESOURCE BASED ON KVM |
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| Yao Yuan,Dai Huadong,Zhang Weihua. DYNAMIC ASSIGNMENT AND MANAGEMENT METHOD FOR PHYSICAL RESOURCE BASED ON KVM[J]. Computer Applications and Software, 2011, 28(1) |
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| Authors: | Yao Yuan Dai Huadong Zhang Weihua |
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| Affiliation: | Yao Yuan Dai Huadong Zhang Weihua(School of Computer,National University of Defence Technology,Changsha 410073,Hunan,China) |
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| Abstract: | At present various I/O devices' accessing models in virtual environment have ubiquitous problem that their performance and sharing mechanism are in contradiction each other.To solve the problem,this article introduces a novel dynamic assignment and management strategy for physical resource based on KVM,which uses virtualization technology and combines with Linux devices' hot-swapping technology.With the help of shared memory and signal mechanism,the strategy enables the communication between physical resour... |
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| Keywords: | Passthrough I/O Physical resource dynamic management Virtual machine |
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