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Kernel: Remove "supervisor" bit from PhysicalPage
Instead of each PhysicalPage knowing whether it comes from the supervisor pages or from the user pages, we can just check in both sets when freeing a page. It's just a handful of pointer range checks, nothing expensive.
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9 changed files with 39 additions and 53 deletions
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@ -145,8 +145,7 @@ public:
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RefPtr<PhysicalPage> allocate_user_physical_page(ShouldZeroFill = ShouldZeroFill::Yes, bool* did_purge = nullptr);
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RefPtr<PhysicalPage> allocate_supervisor_physical_page();
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NonnullRefPtrVector<PhysicalPage> allocate_contiguous_supervisor_physical_pages(size_t size, size_t physical_alignment = PAGE_SIZE);
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void deallocate_user_physical_page(PhysicalAddress);
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void deallocate_supervisor_physical_page(PhysicalAddress);
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void deallocate_physical_page(PhysicalAddress);
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OwnPtr<Region> allocate_contiguous_kernel_region(size_t, StringView name, Region::Access access, size_t physical_alignment = PAGE_SIZE, Region::Cacheable = Region::Cacheable::Yes);
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OwnPtr<Region> allocate_kernel_region(size_t, StringView name, Region::Access access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
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