Hi Stefan, > "core serialization" is a meaningless sequence of words for RISC-V users, The expression is inherited from MEMBARRIER(2). Quoting from the RFC discussion (cf. [3] in the cover letter), "RISC-V does not have "core serializing instructions", meaning that there is no occurence of such a term in the RISC-V ISA. The discussion and git history about the SYNC_CORE command suggested the implementation below: a FENCE.I instruction [...]" > The feature seems useful, but it should document what it does using > terminology actually used in the RISC-V specifications. In _current RISC-V parlance, it's pretty clear: we are doing FENCE.I. As Palmer and others mentioned in the RFC, there're proposals for ISA extensions aiming to "replace" FENCE.I, but those are still WIP. (*) Andrea (*) https://github.com/riscv/riscv-j-extension
