apio
caa3fe8c45
A bit crude, should be replaced by a strdup_from_user() helper to avoid touching userspace memory directly. But it'll do for now.
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#pragma once
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#include <luna/Result.h>
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#include <luna/Types.h>
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namespace MemoryManager
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{
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void init();
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Result<void> protect_kernel_sections();
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Result<u64> alloc_frame();
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Result<void> free_frame(u64 frame);
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void lock_frame(u64 frame);
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void lock_frames(u64 frames, usize count);
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Result<void> remap(u64 address, usize count, int flags);
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Result<void> remap_unaligned(u64 address, usize count, int flags);
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bool validate_readable_page(u64 address);
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bool validate_writable_page(u64 address);
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bool validate_userspace_string(u64 address);
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Result<void> map_frames_at(u64 virt, u64 phys, usize count, int flags);
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Result<u64> alloc_at(u64 virt, usize count, int flags);
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Result<u64> alloc_for_kernel(usize count, int flags);
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Result<u64> get_kernel_mapping_for_frames(u64 phys, usize count, int flags);
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Result<void> unmap_owned(u64 virt, usize count);
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Result<void> unmap_owned_and_free_vm(u64 virt, usize count);
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Result<void> unmap_weak(u64 virt, usize count);
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Result<void> unmap_weak_and_free_vm(u64 virt, usize count);
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usize free();
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usize used();
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usize reserved();
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usize total();
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}
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