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[PATCH] Wait for Interrupt: pause cycle performance counter
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As alluded to in the unprivileged spec, what you propose is de facto legal because the definition of "cycle" is inherently fuzzy and implementation-dependent. See this lengthy discussion: https://github.com/riscv/riscv-isa-manual/blob/69c3cd6323381827f3199d0f19ad0cb72ef97155/src/counters.tex#L66-L113
For the same reason, mandating any particular behavior is impractical (and anyway would be a backwards-incompatible change).
On Sat, Feb 12, 2022 at 9:10 PM <guoren@...> wrote:
From: Guo Ren <guoren@...>
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