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Kernel: Add PML4T support for the PageDirectory class
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2 changed files with 39 additions and 1 deletions
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@ -32,7 +32,14 @@ public:
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~PageDirectory();
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u32 cr3() const { return m_directory_table->paddr().get(); }
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u32 cr3() const
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{
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#if ARCH(X86_64)
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return m_pml4t->paddr().get();
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#else
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return m_directory_table->paddr().get();
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#endif
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}
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RangeAllocator& range_allocator() { return m_range_allocator; }
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const RangeAllocator& range_allocator() const { return m_range_allocator; }
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@ -55,6 +62,9 @@ private:
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Space* m_space { nullptr };
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RangeAllocator m_range_allocator;
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RangeAllocator m_identity_range_allocator;
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#if ARCH(X86_64)
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RefPtr<PhysicalPage> m_pml4t;
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#endif
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RefPtr<PhysicalPage> m_directory_table;
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RefPtr<PhysicalPage> m_directory_pages[4];
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HashMap<u32, RefPtr<PhysicalPage>> m_page_tables;
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