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Affordable Separation on Embedded Platforms: Soft Reboot Enabled Virtualization on a Dual Mode System
Number of Authors: 3
2014 (English)Conference paper (Refereed)
Abstract [en]

While security has become important in embedded systems, commodity operating systems often fail in effectively separating processes, mainly due to a too large trusted computing base. System virtualization can establish isolation already with a small code base, but many existing embedded CPU architectures have very limited virtualization hardware support, so that the performance impact is often non-negligible. Targeting both security and performance, we investigate an approach in which a few minor hardware additions together with virtualization offer protected execution in embedded systems while still allowing non-virtualized execution when secure services are not needed. Benchmarks of a prototype implementation on an emulated ARM Cortex A8 platform confirm that switching between those two execution forms can be done efficiently.

Place, publisher, year, edition, pages
2014, 8. 37-54 p.
Keyword [en]
Dual Mode Separation Soft Reboot Virtualization Hypervisor Embedded Systems Security
National Category
Computer and Information Science
URN: urn:nbn:se:ri:diva-15514OAI: diva2:1036831
Trust & Trustworthy Computing (TRUST) 2014
This is the author version of the correspondent paper published in the proceedings of TRUST 2014 (editors: Thorsten Holz, Sotiris Ioannidis), Springer LNCS 8564. The publisher is Springer International Publishing Switzerland. The final publication is available at from: 2016-10-13 Created: 2016-10-13

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