A survey of real-time operating systems and virtualization solutions for space systems
Sheridan-Barbian, Katherine K.
Nguyen, Thuy D.
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The Department of Defense and the intelligence community rely on space systems for a broad spectrum of services. These systems operate in highly constrained environments (in terms of space, weight and power), making virtualization and resource sharing a desirable approach. Agencies are actively exploring new architectures, such as those employing virtualization, to support their growing space mission. In this thesis, we review how virtualization architectures claim to support the real-time requirements of their guests. We survey real-time systems and virtualization architectures proposed for use in space systems. Further, we investigate the behaviors of virtualized operating systems using a method of remote network-based fingerprinting with TCP timestamps. Our work provides insights into how guests, both general purpose and real-time, behave in virtualized environments. Our survey work and experimental analysis aim to further understanding of how virtualization can be securely incorporated into space systems.
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