Fast-track extension proposal for Resumable Non-Maskable Interrupts (Smrnmi)


Andrew Waterman
 

Hi,

We're submitting for your consideration an extension for resumable non-maskable interrupt (RNMI) support.

You might recall that the current non-maskable interrupt support defined in the M-mode chapter of the priv spec is unresumable (UNMI) when actioned from within M-mode.  While the optional UNMI facility continues to exist, we expect many NMI use cases will move to the RNMI scheme.

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