| | 1 | /* |
| | 2 | * Copyright (c) 2007 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_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. Please obtain a copy of the License at |
| | 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 11 | * file. |
| | 12 | * |
| | 13 | * The Original Code and all software distributed under the License are |
| | 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 18 | * Please see the License for the specific language governing rights and |
| | 19 | * limitations under the License. |
| | 20 | * |
| | 21 | * @APPLE_LICENSE_HEADER_END@ |
| | 22 | */ |
| | 23 | /* |
| | 24 | * |
| | 25 | * File: mach/shared_region.h |
| | 26 | * |
| | 27 | * protos and struct definitions for shared region |
| | 28 | */ |
| | 29 | |
| | 30 | #ifndef _MACH_SHARED_REGION_H_ |
| | 31 | #define _MACH_SHARED_REGION_H_ |
| | 32 | |
| | 33 | #include <sys/cdefs.h> |
| | 34 | #include <mach/vm_prot.h> |
| | 35 | #include <mach/vm_types.h> |
| | 36 | #include <mach/mach_types.h> |
| | 37 | |
| | 38 | #define SHARED_REGION_BASE_I386 0x90000000ULL |
| | 39 | #define SHARED_REGION_SIZE_I386 0x20000000ULL |
| | 40 | #define SHARED_REGION_NESTING_BASE_I386 0x90000000ULL |
| | 41 | #define SHARED_REGION_NESTING_SIZE_I386 0x20000000ULL |
| | 42 | #define SHARED_REGION_NESTING_MIN_I386 0x00200000ULL |
| | 43 | #define SHARED_REGION_NESTING_MAX_I386 0xFFE00000ULL |
| | 44 | |
| | 45 | #define SHARED_REGION_BASE_X86_64 0x00007FFF00000000ULL |
| | 46 | #define SHARED_REGION_SIZE_X86_64 0x00000000FFE00000ULL |
| | 47 | #define SHARED_REGION_NESTING_BASE_X86_64 0x00007FFF00000000ULL |
| | 48 | #define SHARED_REGION_NESTING_SIZE_X86_64 0x00000000FFE00000ULL |
| | 49 | #define SHARED_REGION_NESTING_MIN_X86_64 0x0000000000200000ULL |
| | 50 | #define SHARED_REGION_NESTING_MAX_X86_64 0xFFFFFFFFFFE00000ULL |
| | 51 | |
| | 52 | #ifdef XNU_KERNEL_PRIVATE |
| | 53 | #endif |
| | 54 | |
| | 55 | #define SHARED_REGION_BASE_PPC 0x90000000ULL |
| | 56 | #define SHARED_REGION_SIZE_PPC 0x20000000ULL |
| | 57 | #define SHARED_REGION_NESTING_BASE_PPC 0x90000000ULL |
| | 58 | #define SHARED_REGION_NESTING_SIZE_PPC 0x10000000ULL |
| | 59 | #define SHARED_REGION_NESTING_MIN_PPC 0x10000000ULL |
| | 60 | #define SHARED_REGION_NESTING_MAX_PPC 0x10000000ULL |
| | 61 | |
| | 62 | #define SHARED_REGION_BASE_PPC64 0x00007FFF60000000ULL |
| | 63 | #define SHARED_REGION_SIZE_PPC64 0x00000000A0000000ULL |
| | 64 | #define SHARED_REGION_NESTING_BASE_PPC64 0x00007FFF60000000ULL |
| | 65 | #define SHARED_REGION_NESTING_SIZE_PPC64 0x00000000A0000000ULL |
| | 66 | #define SHARED_REGION_NESTING_MIN_PPC64 0x0000000010000000ULL |
| | 67 | #define SHARED_REGION_NESTING_MAX_PPC64 0x0000000010000000ULL |
| | 68 | |
| | 69 | #define SHARED_REGION_BASE_ARM 0x40000000ULL |
| | 70 | #define SHARED_REGION_SIZE_ARM 0x40000000ULL |
| | 71 | #define SHARED_REGION_NESTING_BASE_ARM 0x40000000ULL |
| | 72 | #define SHARED_REGION_NESTING_SIZE_ARM 0x40000000ULL |
| | 73 | #define SHARED_REGION_NESTING_MIN_ARM ? |
| | 74 | #define SHARED_REGION_NESTING_MAX_ARM ? |
| | 75 | |
| | 76 | #define SHARED_REGION_BASE_ARM64_32 0x1A000000ULL |
| | 77 | #define SHARED_REGION_SIZE_ARM64_32 0x40000000ULL |
| | 78 | #define SHARED_REGION_NESTING_BASE_ARM64_32 0x1A000000ULL |
| | 79 | #define SHARED_REGION_NESTING_SIZE_ARM64_32 0x40000000ULL |
| | 80 | #define SHARED_REGION_NESTING_MIN_ARM64_32 ? |
| | 81 | #define SHARED_REGION_NESTING_MAX_ARM64_32 ? |
| | 82 | |
| | 83 | #ifdef XNU_KERNEL_PRIVATE |
| | 84 | /* ARM64_TODO: move to higher memory */ |
| | 85 | #endif |
| | 86 | #define SHARED_REGION_BASE_ARM64 0x180000000ULL |
| | 87 | #define SHARED_REGION_SIZE_ARM64 0x100000000ULL |
| | 88 | #define SHARED_REGION_NESTING_BASE_ARM64 SHARED_REGION_BASE_ARM64 |
| | 89 | #define SHARED_REGION_NESTING_SIZE_ARM64 SHARED_REGION_SIZE_ARM64 |
| | 90 | #define SHARED_REGION_NESTING_MIN_ARM64 ? |
| | 91 | #define SHARED_REGION_NESTING_MAX_ARM64 ? |
| | 92 | |
| | 93 | #if defined(__i386__) |
| | 94 | #define SHARED_REGION_BASE SHARED_REGION_BASE_I386 |
| | 95 | #define SHARED_REGION_SIZE SHARED_REGION_SIZE_I386 |
| | 96 | #define SHARED_REGION_NESTING_BASE SHARED_REGION_NESTING_BASE_I386 |
| | 97 | #define SHARED_REGION_NESTING_SIZE SHARED_REGION_NESTING_SIZE_I386 |
| | 98 | #define SHARED_REGION_NESTING_MIN SHARED_REGION_NESTING_MIN_I386 |
| | 99 | #define SHARED_REGION_NESTING_MAX SHARED_REGION_NESTING_MAX_I386 |
| | 100 | #elif defined(__x86_64__) |
| | 101 | #define SHARED_REGION_BASE SHARED_REGION_BASE_X86_64 |
| | 102 | #define SHARED_REGION_SIZE SHARED_REGION_SIZE_X86_64 |
| | 103 | #define SHARED_REGION_NESTING_BASE SHARED_REGION_NESTING_BASE_X86_64 |
| | 104 | #define SHARED_REGION_NESTING_SIZE SHARED_REGION_NESTING_SIZE_X86_64 |
| | 105 | #define SHARED_REGION_NESTING_MIN SHARED_REGION_NESTING_MIN_X86_64 |
| | 106 | #define SHARED_REGION_NESTING_MAX SHARED_REGION_NESTING_MAX_X86_64 |
| | 107 | #elif defined(__arm__) |
| | 108 | #define SHARED_REGION_BASE SHARED_REGION_BASE_ARM |
| | 109 | #define SHARED_REGION_SIZE SHARED_REGION_SIZE_ARM |
| | 110 | #define SHARED_REGION_NESTING_BASE SHARED_REGION_NESTING_BASE_ARM |
| | 111 | #define SHARED_REGION_NESTING_SIZE SHARED_REGION_NESTING_SIZE_ARM |
| | 112 | #define SHARED_REGION_NESTING_MIN SHARED_REGION_NESTING_MIN_ARM |
| | 113 | #define SHARED_REGION_NESTING_MAX SHARED_REGION_NESTING_MAX_ARM |
| | 114 | #elif defined(__arm64__) && !defined(__LP64__) |
| | 115 | #define SHARED_REGION_BASE SHARED_REGION_BASE_ARM64_32 |
| | 116 | #define SHARED_REGION_SIZE SHARED_REGION_SIZE_ARM64_32 |
| | 117 | #define SHARED_REGION_NESTING_BASE SHARED_REGION_NESTING_BASE_ARM64_32 |
| | 118 | #define SHARED_REGION_NESTING_SIZE SHARED_REGION_NESTING_SIZE_ARM64_32 |
| | 119 | #define SHARED_REGION_NESTING_MIN SHARED_REGION_NESTING_MIN_ARM64_32 |
| | 120 | #define SHARED_REGION_NESTING_MAX SHARED_REGION_NESTING_MAX_ARM64_32 |
| | 121 | #elif defined(__arm64__) && defined(__LP64__) |
| | 122 | #define SHARED_REGION_BASE SHARED_REGION_BASE_ARM64 |
| | 123 | #define SHARED_REGION_SIZE SHARED_REGION_SIZE_ARM64 |
| | 124 | #define SHARED_REGION_NESTING_BASE SHARED_REGION_NESTING_BASE_ARM64 |
| | 125 | #define SHARED_REGION_NESTING_SIZE SHARED_REGION_NESTING_SIZE_ARM64 |
| | 126 | #define SHARED_REGION_NESTING_MIN SHARED_REGION_NESTING_MIN_ARM64 |
| | 127 | #define SHARED_REGION_NESTING_MAX SHARED_REGION_NESTING_MAX_ARM64 |
| | 128 | #endif |
| | 129 | |
| | 130 | #ifdef KERNEL_PRIVATE |
| | 131 | |
| | 132 | /* |
| | 133 | * This is routine sets the current source of power. |
| | 134 | * Arguments: |
| | 135 | * 0 if it is external source (connected to power ) |
| | 136 | * 1 if it is internal power source ie battery |
| | 137 | */ |
| | 138 | |
| | 139 | void post_sys_powersource(int); |
| | 140 | |
| | 141 | #endif /* KERNEL_PRIVATE */ |
| | 142 | /* |
| | 143 | * The shared_region_* declarations are a private interface between dyld and the kernel. |
| | 144 | */ |
| | 145 | |
| | 146 | /* |
| | 147 | * This is used by legacy shared_region_map_and_slide_np() interface. |
| | 148 | * We build a shared_file_mapping_slide_np from this. |
| | 149 | */ |
| | 150 | struct shared_file_mapping_np { |
| | 151 | mach_vm_address_t sfm_address; |
| | 152 | mach_vm_size_t sfm_size; |
| | 153 | mach_vm_offset_t sfm_file_offset; |
| | 154 | vm_prot_t sfm_max_prot; |
| | 155 | vm_prot_t sfm_init_prot; |
| | 156 | }; |
| | 157 | |
| | 158 | struct shared_file_mapping_slide_np { |
| | 159 | mach_vm_address_t sms_address; /* address at which to create mapping */ |
| | 160 | mach_vm_size_t sms_size; /* size of region to map */ |
| | 161 | mach_vm_offset_t sms_file_offset; /* offset into file to be mapped */ |
| | 162 | user_addr_t sms_slide_size; /* size of data at sms_slide_start */ |
| | 163 | user_addr_t sms_slide_start; /* address from which to get relocation data */ |
| | 164 | vm_prot_t sms_max_prot; /* protections, plus flags, see below */ |
| | 165 | vm_prot_t sms_init_prot; |
| | 166 | }; |
| | 167 | struct shared_file_np { |
| | 168 | int sf_fd; /* file to be mapped into shared region */ |
| | 169 | uint32_t sf_mappings_count; /* number of mappings */ |
| | 170 | uint32_t sf_slide; /* distance in bytes of the slide */ |
| | 171 | }; |
| | 172 | |
| | 173 | /* |
| | 174 | * Extensions to sfm_max_prot that identify how to handle each mapping. |
| | 175 | * These must not interfere with normal prot assignments. |
| | 176 | * |
| | 177 | * VM_PROT_COW - copy on write pages |
| | 178 | * |
| | 179 | * VM_PROT_ZF - zero fill pages |
| | 180 | * |
| | 181 | * VM_PROT_SLIDE - file pages which require relocation and, on arm64e, signing |
| | 182 | * these will be unique per shared region. |
| | 183 | * |
| | 184 | * VM_PROT_NOAUTH - file pages which don't require signing. When combined |
| | 185 | * with VM_PROT_SLIDE, pages are shareable across different |
| | 186 | * shared regions which map the same file with the same relocation info. |
| | 187 | */ |
| | 188 | #define VM_PROT_COW 0x08 |
| | 189 | #define VM_PROT_ZF 0x10 |
| | 190 | #define VM_PROT_SLIDE 0x20 |
| | 191 | #define VM_PROT_NOAUTH 0x40 |
| | 192 | #define VM_PROT_TRANSLATED_ALLOW_EXECUTE 0x80 |
| | 193 | |
| | 194 | #ifndef KERNEL |
| | 195 | |
| | 196 | __BEGIN_DECLS |
| | 197 | int shared_region_check_np(uint64_t *startaddress); |
| | 198 | int shared_region_map_np(int fd, |
| | 199 | uint32_t mappingCount, |
| | 200 | const struct shared_file_mapping_np *mappings); |
| | 201 | int shared_region_slide_np(void); |
| | 202 | __END_DECLS |
| | 203 | |
| | 204 | #endif /* !KERNEL */ |
| | 205 | |
| | 206 | #endif /* _MACH_SHARED_REGION_H_ */ |
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