期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2006
卷号：6
期号：5A
页码：146-152
出版社：International Journal of Computer Science and Network Security
摘要：This paper presents our experiences of building Linux/RTOS hybrid operating environments on Xen and Gandalf virtual machine monitors (VMMs). Xen is a popular open source VMM while Gandalf is our in-house virtual machine monitor that was designed and implemented from scratch to be a simple yet extremely lightweight VMM. We ported an RTOS to both Xen and Gandalf, which were enabled to host multiple RTOSes along with Linux. One significant advantage of employing a VMM to construct such a hybrid environment is that OSes executed on a VMM can be spatially and temporally protected from each other. Our experiences and evaluations show that Gandalf's approach, which combines full- and para-virtualization methods, has clear advantages in terms of both implementation cost and runtime cost.
关键词：Virtual Machine Monitors, Operating Systems, Real-Time Systems, Information Appliances
