RTEMS | RISC-V implementation does not support Smdbltrp extension (#5274)

Fri Nov 21 07:41:58 UTC 2025

Lucian Silistru commented on a discussion: https://gitlab.rtems.org/rtems/rtos/rtems/-/issues/5274#note_136192

Wouldn't NMIE be cleared jumping to RNMI handler in all cases according to spec?
As I read it, you can't get RNMIs with NMIE == 0 but you can get exceptions. And with NMIE == 0 those exceptions jump to RNMI handler not mtvec.
NMIE == 0 -> no interrupts, no rnmi, yes exceptions that jump to RNMI handler
NMIE == 1 -> interrupts and exceptions jump to exception handler, rnmi jump to RNMI handler

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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/issues/5274#note_136192
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