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by nmgycombinator 399 days ago
I think Apple uses an L4 variant for their SEP co-processor, though I'm not sure if it's that specific one. Sounds like another OS I'll probably have to do a deep dive into at some point.
1 comments

They also run L4 variants below and besides XNU, on same cores as the rest https://randomaugustine.medium.com/on-apple-exclaves-d683a2c...
Ooh! Thanks for the links!