50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#pragma once
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#include <luna/Result.h>
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#ifdef ARCH_X86_64
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#include "arch/x86_64/MMU.h"
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#else
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#error "Unknown architecture."
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#endif
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constexpr u64 PAGES_PER_HUGE_PAGE = ARCH_HUGE_PAGE_SIZE / ARCH_PAGE_SIZE;
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namespace MMU
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{
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enum Flags
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{
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None = 0,
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ReadWrite = 1,
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User = 2,
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NoExecute = 4,
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WriteThrough = 8,
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CacheDisable = 16,
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};
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enum class UseHugePages
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{
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No = 0,
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Yes = 1
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};
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u64 translate_physical_address(u64 phys);
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void switch_page_directory(PageDirectory* dir);
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PageDirectory* get_page_directory();
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Result<void> map(u64 virt, u64 phys, int flags, UseHugePages use_huge_pages, PageDirectory* directory = nullptr);
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Result<u64> unmap(u64 virt, PageDirectory* directory = nullptr);
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Result<u64> get_physical(u64 virt, PageDirectory* directory = nullptr);
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Result<int> get_flags(u64 virt, PageDirectory* directory = nullptr);
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Result<void> remap(u64 virt, int flags);
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void flush_all();
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Result<PageDirectory*> create_page_directory_for_userspace();
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Result<void> delete_userspace_page_directory(PageDirectory* directory);
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Result<PageDirectory*> clone_userspace_page_directory(PageDirectory* directory);
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void setup_initial_page_directory();
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PageDirectory* kernel_page_directory();
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}
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