Abstract
x86 ISA has implemented a very complex protection mechanism, and to fully emulate which means a great labor for system emulators. The paper provides a technic, named protection cache, that can accelerate x86 protection mechanism emulation, by caching and reusing recently accessed descriptors and recently generated protection checking results. Evaluation demonstrates that, when protection cache is enabled, emulation performance of x86 instructions or operations related to protection checking gets a speedup of 11%~24.5%, and performance of system call, page fault handling and I/O intensive applications that frequently using aforementioned instructions or operations are all steadily improved.
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© 2012 Springer-Verlag GmbH Berlin Heidelberg
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Dong, W., Jiang, L., Zeng, Y., Guo, Y. (2012). Accelerate x86 System Emulation with Protection Cache. In: Jin, D., Lin, S. (eds) Advances in Future Computer and Control Systems. Advances in Intelligent and Soft Computing, vol 159. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29387-0_43
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DOI: https://doi.org/10.1007/978-3-642-29387-0_43
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-29386-3
Online ISBN: 978-3-642-29387-0
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