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Mon 14 Oct 23:06:38 CEST 2024

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sbosse 2024-10-14 23:07:25 +02:00
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commit 28d3407af5
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kernel/pagetable.h Normal file
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/*
Copyright (C) 2015-2019 The University of Notre Dame
This software is distributed under the GNU General Public License.
See the file LICENSE for details.
*/
#ifndef PAGETABLE_H
#define PAGETABLE_H
#define PAGE_SIZE 4096
#define PAGE_FLAG_USER 0
#define PAGE_FLAG_KERNEL 1
#define PAGE_FLAG_EXISTS 0
#define PAGE_FLAG_ALLOC 2
#define PAGE_FLAG_READONLY 0
#define PAGE_FLAG_READWRITE 4
#define PAGE_FLAG_NOCLEAR 0
#define PAGE_FLAG_CLEAR 8
struct pagetable *pagetable_create();
void pagetable_init(struct pagetable *p);
int pagetable_map(struct pagetable *p, unsigned vaddr, unsigned paddr, int flags);
int pagetable_getmap(struct pagetable *p, unsigned vaddr, unsigned *paddr, int *flags);
void pagetable_unmap(struct pagetable *p, unsigned vaddr);
void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags);
void pagetable_free(struct pagetable *p, unsigned vaddr, unsigned length);
void pagetable_delete(struct pagetable *p);
struct pagetable *pagetable_duplicate(struct pagetable *p);
struct pagetable *pagetable_load(struct pagetable *p);
void pagetable_enable();
void pagetable_refresh();
#endif