更新日期: 2022/06/01 来源: https://gitee.com/weharmony/kernel_liteos_a_note
los_vm_fault.h
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1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/**
33 * @defgroup los_vm_fault vm fault definition
34 * @ingroup kernel
35 */
36
37#ifndef __LOS_VM_FAULT_H__
38#define __LOS_VM_FAULT_H__
39
40#include "los_typedef.h"
41#include "los_exc.h"
42
43#ifdef __cplusplus
44#if __cplusplus
45extern "C" {
46#endif /* __cplusplus */
47#endif /* __cplusplus */
48
49typedef struct {
53
54#define VM_MAP_PF_FLAG_WRITE (1U << 0)
55#define VM_MAP_PF_FLAG_USER (1U << 1)
56#define VM_MAP_PF_FLAG_INSTRUCTION (1U << 2)
57#define VM_MAP_PF_FLAG_NOT_PRESENT (1U << 3)
58//缺页中断处理函数
60#ifdef __cplusplus
61#if __cplusplus
62}
63#endif /* __cplusplus */
64#endif /* __cplusplus */
65
66#endif /* __LOS_VM_FAULT_H__ */
67
unsigned long VADDR_T
Definition: los_typedef.h:208
int STATUS_T
Definition: los_typedef.h:215
unsigned int UINT32
Definition: los_typedef.h:57
STATUS_T OsVmPageFaultHandler(VADDR_T vaddr, UINT32 flags, ExcContext *frame)
Definition: los_vm_fault.c:352
VADDR_T fixAddr
Definition: los_vm_fault.h:51
VADDR_T excAddr
Definition: los_vm_fault.h:50