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Why current memory management units are not suited for automotive ECUs

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2012

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Gesellschaft für Informatik e.V.

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A major trend in automotive industry is to enrich driver and passenger experience with an increasing amount of consumer electronics and car-2-x functionality. A close interaction between this added functionality and the classical automotive domains allows for innovations that are valuable to the end customer and cannot be outplayed easily by devices with a pure consumer electronic origin. Innovations of this class require a tight coupling, for instance by executing programs from both worlds on the same microprocessor. The latter introduces many challenges, especially regarding reliability, security and safety of such systems. A unified memory management fulfilling the requirements of the consumer electronics and automotive application could help to address these issues and is a challenge by itself. This paper shows that the prevailing implementation scheme for memory management units (MMUs) is not suited for the needs of such systems and points out a solution direction.

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Schneider, Jörn (2012): Why current memory management units are not suited for automotive ECUs. Automotive - Safety & Security 2012. Bonn: Gesellschaft für Informatik e.V.. PISSN: 1617-5468. ISBN: 978-3-88579-604-6. pp. 99-114. Regular Research Papers. Karlsruhe. 14.-15. November 2012

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