Computer Science Location: Zoom (email presenter for link)
Add to Calendar 2021-05-17T15:00:00 2021-05-17T15:00:00 America/New_York Ph.D. Qualifying Exam Presentation by Xida Ren Exploring New Attacks on the Intel/AMD Micro-Op Cache   Abstract: Zoom (email presenter for link)

Exploring New Attacks on the Intel/AMD Micro-Op Cache

 

Abstract:

Most modern processors translate instructions into simpler internal micro-ops for execution. This decoding process costs time and power, motivating architects to avoid it for repeatedly executed code by implementing a cache for decoded micro-ops. In this report, we conclude a project that explored the security implications of the micro-op cache. We worked with the recent Zen and Skylake architectures, performing a characterization study before successfully new attacks to abuse the micro-op cache. We also discuss potential defenses for such attacks.

Committee:

  • Kevin Skadron, Chair, (CS/SEAS/UVA)
  • Ashish Venkat, Advisor, (CS/SEAS/UVA)
  • Jack Davidson (CS/SEAS/UVA)
  • Yonghwi Kwon (CS/SEAS/UVA)