July 26, 2022, 1:20 a.m. | You Wu, Xuehai Qian

cs.CR updates on arXiv.org arxiv.org

This paper proposes RCP, a new reversible coherence protocol that ensures
invisible speculative load execution (ISLE) with low overhead. RCP can be
combined with processor mechanisms that eliminate the effects of speculative
instructions on other instructions to achieve low overhead invisible
speculative execution (ISE). ISE provides protection that is at least as strong
as speculative privacy tracking (SPT) and stronger than speculative taint
tracking (STT). RCP is designed by systematically extending the existing
coherence protocol to incorporate speculative loads and …

ar protocol

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