los_vm_fault.h

/*
 * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
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 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
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 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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/**
 * @defgroup los_vm_fault vm fault definition
 * @ingroup kernel
 */

#ifndef __LOS_VM_FAULT_H__
#define __LOS_VM_FAULT_H__

#include "los_typedef.h"
#include "los_exc.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

typedef struct {
    VADDR_T excAddr;
    VADDR_T fixAddr;
} LosExcTable;

#define     VM_MAP_PF_FLAG_WRITE            (1U << 0)
#define     VM_MAP_PF_FLAG_USER             (1U << 1)
#define     VM_MAP_PF_FLAG_INSTRUCTION      (1U << 2)
#define     VM_MAP_PF_FLAG_NOT_PRESENT      (1U << 3)

STATUS_T OsVmPageFaultHandler(VADDR_T vaddr, UINT32 flags, ExcContext *frame);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* __LOS_VM_FAULT_H__ */