A system framework and API for run-time adaptable parallel software
Proceedings of the 2013 Research in Adaptive and Convergent Systems
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
A verified information-flow architecture
Proceedings of the 41st ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages
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This paper proposes Harmoni, a high performance hardware accelerator architecture that can support a broad range of run-time monitoring and bookkeeping functions. Unlike custom hardware, which offers very little configurability after it has been fabricated, Harmoni is highly configurable and can allow a wide range of different hardware monitoring and bookkeeping functions to be dynamically added to a processing core even after the chip has already been fabricated. The Harmoni architecture achieves much higher efficiency than software implementations and previously proposed monitoring platforms by closely matching the common characteristics of run-time monitoring functions that are based on the notion of tagging. We implemented an RTL prototype of Harmoni and evaluated it with several example monitoring functions for security and programmability. The prototype demonstrates that the architecture can support a wide range of monitoring functions with different characteristics. Harmoni takes moderate silicon area, has very high throughput, and incurs low overheads on monitored programs.