30 lines
543 B
C
30 lines
543 B
C
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#pragma once
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#include <stdint.h>
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#define NOT_PRESENT (1 << 0)
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#define RW (1 << 1)
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#define SUPERVISOR (0 << 2)
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#define INIT_FLAGS (NOT_PRESENT | RW | SUPERVISOR)
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struct page_directory_entry {
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uint32_t present : 1;
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uint32_t rw : 1;
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uint32_t user : 1;
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uint32_t page_size : 1;
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uint32_t unused : 8;
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uint32_t frame : 20;
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};
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struct page_table_entry {
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uint32_t present : 1;
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uint32_t rw : 1;
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uint32_t user : 1;
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uint32_t accessed : 1;
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uint32_t dirty : 1;
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uint32_t unused : 7;
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uint32_t frame : 20;
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};
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void init_memory(void);
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