summaryrefslogtreecommitdiff
path: root/include/kernel/mm.h
blob: e3de09aac2737f0698ca73a6faea725235ba758a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2026 Richard QIn
 */

#pragma once
#include "common/types.h"

namespace VM
{
    extern uint64 *kernel_pagetable;

    void kvminit();
    void kvminithart();

    uint64 *uvmcreate();
    void uvminit(uint64 *pagetable, uchar *src, uint64 sz);
    uint64 uvmalloc(uint64 *pagetable, uint64 oldsz, uint64 newsz, int xperm);
    uint64 uvmdealloc(uint64 *pagetable, uint64 oldsz, uint64 newsz);
    void uvmfree(uint64 *pagetable, uint64 sz);
    int uvmcopy(uint64 *oldpt, uint64 *newpt, uint64 sz);
    void uvmunmap(uint64 *pagetable, uint64 va, uint64 npages, int do_free);

    int copyout(uint64 *pagetable, uint64 dstva, char *src, uint64 len);
    int copyin(uint64 *pagetable, char *dst, uint64 srcva, uint64 len);
    int copyinstr(uint64 *pagetable, char *dst, uint64 srcva, uint64 max);

    int handle_cow_fault(uint64 *pagetable, uint64 va);
    int mappages(uint64 *pagetable, uint64 va, uint64 size, uint64 pa, int perm);

    uint64 walkaddr(uint64 *pagetable, uint64 va);
}