Making a Virtual Machine Monitor Interruptible

• Ito Megumi

  IBM Research - Tokyo

• Oikawa Shuichi

  Department of Computer Science, University of Tsukuba

抄録

This paper describes our approach to making the Gandalf Virtual Machine Monitor (VMM) interruptible. Gandalf is designed to be a lightweight VMM for use in embedded systems. Hardware interrupts are directly notified to its guest operating system (OS) kernel without the interventions of the VMM, and the VMM only processes the exceptions caused by the guest kernel. Since the VMM processes those exceptions with interrupts disabled, the detailed performance analysis using PMC (Performance Monitoring Counters) revealed that the time duration while the interrupts are disabled is rather long. By making Gandalf interruptible, we are able to make VMM based systems more suitable for embedded systems. We analyzed the requirements for making Gandalf interruptible, and designed and implemented mechanisms to achieve this. The experimental results show that making Gandalf interruptible significantly reduces a duration of execution time with interrupts disabled while it does not impact performance.

収録刊行物

• Journal of Information Processing

  Journal of Information Processing 19 411-420, 2011

  一般社団法人 情報処理学会

キーワード

• Regular Paper

詳細情報

• CRID: 1390001205296290816
• NII論文ID: 130000969027
• NII書誌ID: AA00700121
• DOI: 10.2197/ipsjjip.19.411
• ISSN: 18826652
• Web Site: http://id.nii.ac.jp/1001/00075758/
• Web Site: http://www.jstage.jst.go.jp/article/ipsjjip/19/0/19_0_411/_pdf
• 本文言語コード: en
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