Gunnar Beutner b5aad1c81d Kernel: Fix GDT and segment selectors to make userland work on x86_64 ...

Userland faulted on the very first instruction before because the
PML4T/PDPT/etc. weren't marked as user-accessible. For some reason
x86 doesn't care about that.

Also, we need to provide an appropriate userspace stack segment
selector to iretq.

2021-06-28 22:29:28 +02:00

6.0 KiB

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