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 45 extern "C" { 46 #endif /* __cplusplus */ 47 #endif /* __cplusplus */ 48 49 typedef struct { 50 VADDR_T excAddr; 51 VADDR_T fixAddr; 52 } LosExcTable; 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 59 STATUS_T OsVmPageFaultHandler(VADDR_T vaddr, UINT32 flags, ExcContext *frame); 60 #ifdef __cplusplus 61 #if __cplusplus 62 } 63 #endif /* __cplusplus */ 64 #endif /* __cplusplus */ 65 66 #endif /* __LOS_VM_FAULT_H__ */ 67 68