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arm64: Remove kernel undef instruction support
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Authored by andrew on May 6 2025, 5:03 PM.
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Details

Summary

Now we don't handle any undefined instructions in the kernel remove
the support to handle them. The kernel should only ever execute valid
instructions. The only case it needed to handle was an old emulator
that is now well out of support, and the handler for this has been
removed.

Sponsored by: Arm Ltd

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rG FreeBSD src repository
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