Suggest removing outdated reference to user-mode interrupts

riscv / riscv-isa-manual

RISC-V Instruction Set Manual

https://riscv.org/

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Suggest removing outdated reference to user-mode interrupts #1739

Closed davidharrishmc closed 4 days ago

davidharrishmc commented 5 days ago

Section 10.1.3 states

“Interrupts to S-mode take priority over any interrupts to lower privilege modes.”

This appears to be a throwback to the unratified user mode interrupt N extension. There are no longer interrupts to any lower privilege modes than S-mode, and this sentence seems it could be deleted.

pdonahue-ventana commented 4 days ago

If the H extension is implemented then this sentence seems relevant. You can have interrupts to VS mode which is less privileged than S/HS mode.

davidharrishmc commented 4 days ago

Fair enough. I wasn't thinking about VS. I'll close the issue.