Andreas Kling 52deb09382 Kernel: Enable PAE (Physical Address Extension) ... Introduce one more (CPU) indirection layer in the paging code: the page directory pointer table (PDPT). Each PageDirectory now has 4 separate PageDirectoryEntry arrays, governing 1 GB of VM each. A really neat side-effect of this is that we can now share the physical page containing the >=3GB kernel-only address space metadata between all processes, instead of lazily cloning it on page faults. This will give us access to the NX (No eXecute) bit, allowing us to prevent execution of memory that's not supposed to be executed.		2019-12-25 13:35:57 +01:00
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boot.S	Kernel: Enable PAE (Physical Address Extension)	2019-12-25 13:35:57 +01:00