1 /* 2 * Copyright (c) 2000-2020 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * @OSF_COPYRIGHT@ 30 */ 31 /* 32 * Mach Operating System 33 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University 34 * All Rights Reserved. 35 * 36 * Permission to use, copy, modify and distribute this software and its 37 * documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or [email protected] 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie Mellon 54 * the rights to redistribute these changes. 55 */ 56 /* 57 */ 58 /* 59 * File: vm/vm_fault.h 60 * 61 * Page fault handling module declarations. 62 */ 63 64 #ifndef _VM_VM_FAULT_H_ 65 #define _VM_VM_FAULT_H_ 66 67 #include <mach/mach_types.h> 68 #include <mach/kern_return.h> 69 #include <mach/boolean.h> 70 #include <mach/vm_prot.h> 71 #include <mach/vm_param.h> 72 #include <mach/vm_behavior.h> 73 74 #ifdef KERNEL_PRIVATE 75 76 typedef kern_return_t vm_fault_return_t; 77 78 #define VM_FAULT_SUCCESS 0 79 #define VM_FAULT_RETRY 1 80 #define VM_FAULT_INTERRUPTED 2 81 #define VM_FAULT_MEMORY_SHORTAGE 3 82 #define VM_FAULT_MEMORY_ERROR 5 83 #define VM_FAULT_SUCCESS_NO_VM_PAGE 6 /* success but no VM page */ 84 85 /* 86 * Page fault handling based on vm_map (or entries therein) 87 */ 88 89 extern kern_return_t vm_fault( 90 vm_map_t map, 91 vm_map_offset_t vaddr, 92 vm_prot_t fault_type, 93 boolean_t change_wiring, 94 #if XNU_KERNEL_PRIVATE 95 vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ 96 #endif 97 int interruptible, 98 pmap_t pmap, 99 vm_map_offset_t pmap_addr) 100 #if XNU_KERNEL_PRIVATE 101 __XNU_INTERNAL(vm_fault) 102 #endif 103 ; 104 105 extern void vm_pre_fault(vm_map_offset_t, vm_prot_t); 106 107 #endif /* KERNEL_PRIVATE */ 108 109 #endif /* _VM_VM_FAULT_H_ */ 110