Unmodified device driver reuse and improved system dependability via virtual machines

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Unmodified device driver reuse and improved system dependability via virtual machines (2004)

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by Joshua Levasseur , Volkmar Uhlig , Jan Stoess , Stefan Götz

Venue:	In Proceedings of the 6th Symposium on Operating Systems Design and Implementation
Citations:	134 - 8 self

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@INPROCEEDINGS{Levasseur04unmodifieddevice,
    author = {Joshua Levasseur and Volkmar Uhlig and Jan Stoess and Stefan Götz},
    title = {Unmodified device driver reuse and improved system dependability via virtual machines},
    booktitle = {In Proceedings of the 6th Symposium on Operating Systems Design and Implementation},
    year = {2004},
    pages = {17--30}
}

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Abstract

We propose a method to reuse unmodified device drivers and to improve system dependability using virtual machines. We run the unmodified device driver, with its original operating system, in a virtual machine. This approach enables extensive reuse of existing and unmodified drivers, independent of the OS or device vendor, significantly reducing the barrier to building new OS endeavors. By allowing distinct device drivers to reside in separate virtual machines, this technique isolates faults caused by defective or malicious drivers, thus improving a system’s dependability. We show that our technique requires minimal support infrastructure and provides strong fault isolation. Our prototype’s network performance is within 3–8 % of a native Linux system. Each additional virtual machine increases the CPU utilization by about 0.12%. We have successfully reused a wide variety of unmodified Linux network, disk, and PCI device drivers. 1

Keyphrases

virtual machine unmodified device driver reuse improved system dependability unmodified device driver system dependability extensive reuse strong fault isolation malicious driver cpu utilization unmodified driver new o endeavor pci device driver device vendor additional virtual machine unmodified linux network distinct device driver separate virtual machine original operating system prototype network performance minimal support infrastructure wide variety native linux system

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