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arm64: Add in_vhe() to find if the kernel is in VHE
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Authored by andrew on Feb 19 2024, 3:28 PM.
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Details

Summary

Add a function to support devices that may need to know if the kernel
has enabled the Armv8.1 Virtulization Host Extensions (FEAT_VHE).
Some devices, e.g. the generic timer, will need to know, e.g. use a
different interrupt.

Sponsored by: Arm Ltd

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rG FreeBSD src repository
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Buildable 56103
Build 52992: arc lint + arc unit