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Improving the Reliability of the Operating System Inside a VM

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Zheng Hao,
Zheng Hao
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Dong Xiaoshe,
Dong Xiaoshe
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Zhu Zhengdong,
Zhu Zhengdong*
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
*Corresponding author:[email protected]
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Chen Baoke,
Chen Baoke
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Bai Xiuxiu,
Bai Xiuxiu
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Zhang Xingjun,
Zhang Xingjun
1
Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Wang Endong
Wang Endong
2
State Key Laboratory of High-End Server & Storage Technology, Ji'nan, China
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The Computer Journal, Volume 59, Issue 5, May 2016, Pages 715–740,https://doi.org/10.1093/comjnl/bxv111
Published:
09 May 2016
Article history
Received:
02 June 2015
Revision received:
29 August 2015
Published:
09 May 2016
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Abstract

Virtualization technology can provide reusability and strong isolation between different virtual machines (VMs). However, there is no effective isolation mechanism inside a VM to solve an operating system's reliability problems, including driver faults. This paper describes Chariot, an architecture that provides effective and transparent driver isolation inside the VM, achieves fine-grained driver isolation and retains the reusability advantage of virtualization technology. First, Chariot transparently monitors an isolated driver with monitoring wrappers, and establishes an access control table (ACT) in a timely manner that records the driver write permissions. Secondly, Chariot protects the shadow page table of the VM (where the driver resides) in due time to capture its write operations. Next, the ACT examines the correctness of the write operations. Finally, if an illegal write operation is detected, Chariot recovers the faulty driver and prevents the spread of driver faults in the VM. The experimental results show that Chariot effectively isolates more than 90% of injected faults (with performance losses of|$<$|20% in most benchmarks) and effectively improves the reliability of the VM. In addition, Chariot can be easily extended to isolate new drivers and ported to other versions of OSs in the virtualization environment.

© The British Computer Society 2015. All rights reserved. For Permissions, please email:[email protected]
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Council of European Professional Informatics Societies
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