Sönke Holz 6654021655 Kernel/riscv64: Don't hard-code the page fault reason on RISC-V ...

Instead, rewrite the region page fault handling code to not use
PageFault::type() on RISC-V.

I split Region::handle_fault into having a RISC-V-specific
implementation, as I am not sure if I cover all page fault handling edge
cases by solely relying on MM's own region metadata.
We should probably also take the processor-provided page fault reason
into account, if we decide to merge these two implementations in the
future.

2024-03-25 14:18:38 -06:00

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