1 /* 2 * Copyright (c) 2023 Apple 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 #ifndef _VM_VM_FAULT_XNU_H_ 30 #define _VM_VM_FAULT_XNU_H_ 31 32 #ifdef XNU_KERNEL_PRIVATE 33 34 #include <sys/cdefs.h> 35 #include <vm/vm_fault.h> 36 37 __BEGIN_DECLS 38 39 #ifdef MACH_KERNEL_PRIVATE 40 41 #include <vm/vm_page.h> 42 #include <vm/vm_object_xnu.h> 43 #include <vm/vm_map_xnu.h> 44 45 extern void vm_fault_init(void); 46 47 /* exported kext version */ 48 extern kern_return_t vm_fault_external( 49 vm_map_t map, 50 vm_map_offset_t vaddr, 51 vm_prot_t fault_type, 52 boolean_t change_wiring, 53 int interruptible, 54 pmap_t caller_pmap, 55 vm_map_offset_t caller_pmap_addr); 56 57 58 extern vm_offset_t kdp_lightweight_fault( 59 vm_map_t map, 60 vm_offset_t cur_target_addr, 61 bool multi_cpu); 62 63 #endif /* MACH_KERNEL_PRIVATE */ 64 65 /* 66 * Disable vm faults on the current thread. 67 */ 68 extern void vm_fault_disable(void); 69 70 /* 71 * Enable vm faults on the current thread. 72 */ 73 extern void vm_fault_enable(void); 74 75 /* 76 * Return whether vm faults are disabled on the current thread. 77 */ 78 extern bool vm_fault_get_disabled(void); 79 80 extern boolean_t NEED_TO_HARD_THROTTLE_THIS_TASK(void); 81 82 __END_DECLS 83 84 #endif /* XNU_KERNEL_PRIVATE */ 85 #endif /* _VM_VM_FAULT_XNU_H_ */ 86