34 lines
690 B
C
34 lines
690 B
C
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#ifndef MM_H
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#define MM_H MM_H
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#include "hos_types.h"
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#include "hos_defines.h"
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#include "multiboot.h"
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typedef u32_t pagedirectory_entry_t;
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#define NUM_PAGETABLE_ENTRIES (PAGE_SIZE / sizeof(pagedirectory_entry_t))
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typedef pagedirectory_entry_t pagedirectory_t[NUM_PAGETABLE_ENTRIES];
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typedef struct
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{
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u64_t base;
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u64_t length;
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} mm_mem_range_t;
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void mm_record_mmap_entry(mb_mmap_t * mmap);
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void mm_bootstrap();
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int mm_map(u32_t virtual_address, u32_t physical_address,
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u32_t user_mode, u32_t writable);
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u32_t mm_page_alloc();
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#define set_cr3(address) \
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__asm__ __volatile__ ("movl %0, %%cr3" : : "r" (address));
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#endif
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