27 lines
913 B
C
27 lines
913 B
C
#ifndef __PAGE_TABLE_ENTRY_
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#define __PAGE_TABLE_ENTRY_
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enum __PAGE_FLAGS {
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_I86_PTE_PRESENT = 1,
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_I86_PTE_WRITABLE = 2,
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_I86_PTE_USER = 4,
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_I86_PTE_WRITETHROUGH = 8,
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_I86_PTE_NOT_CACHEABLE = 0x10,
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_I86_PTE_ACCESSED = 0x20,
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_I86_PTE_DIRTY = 0x40,
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_I86_PTE_PAT = 0x80,
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_I86_PTE_CPU_GLOBAL = 0x100,
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_I86_PTE_LV4_GLOBAL = 0x200,
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_I86_PTE_FRAME = 0x7FFFF000
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};
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typedef unsigned pt_entry;
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extern void pt_entry_add_attrib (pt_entry* entry, unsigned mask);
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extern void pt_entry_del_attrib (pt_entry* entry, unsigned mask);
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extern void pt_entry_set_frame (pt_entry* entry, unsigned address);
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extern unsigned pt_entry_get_frame (pt_entry entry);
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extern unsigned char pt_entry_is_present (pt_entry entry);
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extern unsigned char pt_entry_is_writable (pt_entry entry);
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#endif |