35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
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/*
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Copyright (C) 2015-2019 The University of Notre Dame
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This software is distributed under the GNU General Public License.
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See the file LICENSE for details.
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*/
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#ifndef PAGETABLE_H
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#define PAGETABLE_H
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#define PAGE_SIZE 4096
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#define PAGE_FLAG_USER 0
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#define PAGE_FLAG_KERNEL 1
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#define PAGE_FLAG_EXISTS 0
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#define PAGE_FLAG_ALLOC 2
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#define PAGE_FLAG_READONLY 0
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#define PAGE_FLAG_READWRITE 4
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#define PAGE_FLAG_NOCLEAR 0
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#define PAGE_FLAG_CLEAR 8
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struct pagetable *pagetable_create();
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void pagetable_init(struct pagetable *p);
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int pagetable_map(struct pagetable *p, unsigned vaddr, unsigned paddr, int flags);
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int pagetable_getmap(struct pagetable *p, unsigned vaddr, unsigned *paddr, int *flags);
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void pagetable_unmap(struct pagetable *p, unsigned vaddr);
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void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags);
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void pagetable_free(struct pagetable *p, unsigned vaddr, unsigned length);
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void pagetable_delete(struct pagetable *p);
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struct pagetable *pagetable_duplicate(struct pagetable *p);
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struct pagetable *pagetable_load(struct pagetable *p);
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void pagetable_enable();
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void pagetable_refresh();
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#endif
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