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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 | /* * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * Copyright (c) 1994 The University of Utah and * the Computer Systems Laboratory at the University of Utah (CSL). * All rights reserved. * * Permission to use, copy, modify and distribute this software is hereby * granted provided that (1) source code retains these copyright, permission, * and disclaimer notices, and (2) redistributions including binaries * reproduce the notices in supporting documentation, and (3) all advertising * materials mentioning features or use of this software display the following * acknowledgement: ``This product includes software developed by the * Computer Systems Laboratory at the University of Utah.'' * * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSL requests users of this software to return to csl-dist@cs.utah.edu any * improvements that they make and grant CSL redistribution rights. * */ /* * File: vm_param.h * Author: Avadis Tevanian, Jr. * Date: 1985 * * I386 machine dependent virtual memory parameters. * Most of the declarations are preceeded by I386_ (or i386_) * which is OK because only I386 specific code will be using * them. */ #ifndef _MACH_I386_VM_PARAM_H_ #define _MACH_I386_VM_PARAM_H_ #if defined (__i386__) || defined (__x86_64__) #if !defined(KERNEL) && !defined(__ASSEMBLER__) #include <mach/vm_page_size.h> #endif #define BYTE_SIZE 8 /* byte size in bits */ #define I386_PGBYTES 4096 /* bytes per 80386 page */ #define I386_PGSHIFT 12 /* bitshift for pages */ #if defined(KERNEL) #define PAGE_SIZE I386_PGBYTES #define PAGE_SHIFT I386_PGSHIFT #define PAGE_MASK (PAGE_SIZE - 1) #define PAGE_MAX_SHIFT PAGE_SHIFT #define PAGE_MAX_SIZE PAGE_SIZE #define PAGE_MAX_MASK PAGE_MASK #define PAGE_MIN_SHIFT PAGE_SHIFT #define PAGE_MIN_SIZE PAGE_SIZE #define PAGE_MIN_MASK PAGE_MASK #define I386_LPGBYTES 2*1024*1024 /* bytes per large page */ #define I386_LPGSHIFT 21 /* bitshift for large pages */ #define I386_LPGMASK (I386_LPGBYTES-1) /* * Convert bytes to pages and convert pages to bytes. * No rounding is used. */ #define i386_btop(x) ((ppnum_t)((x) >> I386_PGSHIFT)) #define machine_btop(x) i386_btop(x) #define i386_ptob(x) (((pmap_paddr_t)(x)) << I386_PGSHIFT) #define machine_ptob(x) i386_ptob(x) /* * Round off or truncate to the nearest page. These will work * for either addresses or counts. (i.e. 1 byte rounds to 1 page * bytes. */ #define i386_round_page(x) ((((pmap_paddr_t)(x)) + I386_PGBYTES - 1) & \ ~(I386_PGBYTES-1)) #define i386_trunc_page(x) (((pmap_paddr_t)(x)) & ~(I386_PGBYTES-1)) #else /* KERNEL */ #if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) #define PAGE_SHIFT I386_PGSHIFT #define PAGE_SIZE I386_PGBYTES #define PAGE_MASK (PAGE_SIZE-1) #else /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */ #define PAGE_SHIFT vm_page_shift #define PAGE_SIZE vm_page_size #define PAGE_MASK vm_page_mask #endif /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */ #define PAGE_MAX_SHIFT 14 #define PAGE_MAX_SIZE (1 << PAGE_MAX_SHIFT) #define PAGE_MAX_MASK (PAGE_MAX_SIZE-1) #define PAGE_MIN_SHIFT 12 #define PAGE_MIN_SIZE (1 << PAGE_MIN_SHIFT) #define PAGE_MIN_MASK (PAGE_MIN_SIZE-1) #endif /* KERNEL */ #define VM_MIN_ADDRESS64 ((user_addr_t) 0x0000000000000000ULL) /* * Default top of user stack, grows down from here. * Address chosen to be 1G (3rd level page table entry) below SHARED_REGION_BASE_X86_64 * minus additional 1Meg (1/2 1st level page table coverage) to allow a redzone after it. */ #define VM_USRSTACK64 ((user_addr_t) (0x00007FF7C0000000ull - (1024 * 1024))) /* * XXX TODO: Obsolete? */ #define VM_DYLD64 ((user_addr_t) 0x00007FFF5FC00000ULL) #define VM_LIB64_SHR_DATA ((user_addr_t) 0x00007FFF60000000ULL) #define VM_LIB64_SHR_TEXT ((user_addr_t) 0x00007FFF80000000ULL) /* * the end of the usable user address space , for now about 47 bits. * the 64 bit commpage is past the end of this */ #define VM_MAX_PAGE_ADDRESS ((user_addr_t) 0x00007FFFFFE00000ULL) /* * canonical end of user address space for limits checking */ #define VM_MAX_USER_PAGE_ADDRESS ((user_addr_t)0x00007FFFFFFFF000ULL) /* system-wide values */ #define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0) #define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS) /* process-relative values (all 32-bit legacy only for now) */ #define VM_MIN_ADDRESS ((vm_offset_t) 0) #define VM_USRSTACK32 ((vm_offset_t) 0xC0000000) /* ASLR slides stack down by up to 1 MB */ #define VM_MAX_ADDRESS ((vm_offset_t) 0xFFE00000) #ifdef KERNEL_PRIVATE #define TEST_PAGE_SIZE_16K FALSE #define TEST_PAGE_SIZE_4K TRUE /* Kernel-wide values */ #define KB (1024ULL) #define MB (1024*KB) #define GB (1024*MB) /* * Maximum physical memory supported. */ #define K64_MAXMEM (2048*GB) #define KERNEL_MAXMEM K64_MAXMEM /* * +-----------------------+--------+--------+------------------------+ * | 0xffff_ffff_ffff_efff | -4096 | ~512GB | VM_MAX_KERNEL_ADDRESS | * +-----------------------+--------+--------+------------------------+ * | 0xffff_ff80_0000_0000 | -512GB | 0GB | VM_MIN_KERNEL_ADDRESS | * | | | | PMAP_HEAP_RANGE_START | * +-----------------------+--------+--------+------------------------+ */ #define KERNEL_IMAGE_TO_PHYS(x) (x) #define VM_KERNEL_POINTER_SIGNIFICANT_BITS 39 #define VM_MIN_KERNEL_ADDRESS ((vm_offset_t) 0xFFFFFF8000000000UL) #define VM_MIN_KERNEL_PAGE ((ppnum_t)0) #define VM_MIN_KERNEL_AND_KEXT_ADDRESS (VM_MIN_KERNEL_ADDRESS - 0x80000000ULL) #define VM_MAX_KERNEL_ADDRESS ((vm_offset_t) 0xFFFFFFFFFFFFEFFFUL) #define VM_MAX_KERNEL_ADDRESS_EFI32 ((vm_offset_t) 0xFFFFFF80FFFFEFFFUL) #define KEXT_ALLOC_MAX_OFFSET (2 * 1024 * 1024 * 1024UL) #define KEXT_ALLOC_BASE(x) ((x) - KEXT_ALLOC_MAX_OFFSET) #define KEXT_ALLOC_SIZE(x) (KEXT_ALLOC_MAX_OFFSET - (x)) #define VM_USER_STRIP_PTR(_v) (_v) #define VM_KERNEL_STRIP_PTR(_v) (_v) #define VM_KERNEL_STRIP_UPTR(_v) (_v) #define VM_KERNEL_ADDRESS(va) \ (((vm_address_t)(va) >= VM_MIN_KERNEL_AND_KEXT_ADDRESS) && \ ((vm_address_t)(va) <= VM_MAX_KERNEL_ADDRESS)) #define VM_MAP_MIN_ADDRESS MACH_VM_MIN_ADDRESS #define VM_MAP_MAX_ADDRESS MACH_VM_MAX_ADDRESS /* FIXME - always leave like this? */ #if KASAN /* Increase the stack sizes to account for the redzones that get added to every * stack object. */ # define INTSTACK_SIZE (I386_PGBYTES*4*4) # define KERNEL_STACK_SIZE (I386_PGBYTES*4*4) #elif DEBUG # define INTSTACK_SIZE (I386_PGBYTES*4) # define KERNEL_STACK_SIZE (I386_PGBYTES*6) #else /* * KERNEL_STACK_MULTIPLIER can be defined externally to get a larger * kernel stack size. For example, adding "-DKERNEL_STACK_MULTIPLIER=2" * helps avoid kernel stack overflows when compiling with "-O0". */ #ifndef KERNEL_STACK_MULTIPLIER #define KERNEL_STACK_MULTIPLIER (1) #endif /* KERNEL_STACK_MULTIPLIER */ # define INTSTACK_SIZE (I386_PGBYTES*4) # define KERNEL_STACK_SIZE (I386_PGBYTES*4*KERNEL_STACK_MULTIPLIER) #endif #ifdef MACH_KERNEL_PRIVATE /* For implementing legacy 32-bit interfaces */ #define VM32_SUPPORT 1 #define VM32_MIN_ADDRESS ((vm32_offset_t) 0) #define VM32_MAX_ADDRESS ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF)) /* * kalloc() parameters: * * Historically kalloc's underlying zones were power-of-2 sizes, with a * KALLOC_MINSIZE of 16 bytes. The allocator ensured that * (sizeof == alignof) >= 16 for all kalloc allocations. * * Today kalloc may use zones with intermediate sizes, constrained by * KALLOC_MINSIZE and a minimum alignment, expressed by KALLOC_LOG2_MINALIGN. * * The common alignment for LP64 is for longs and pointers i.e. 8 bytes. */ #define KALLOC_MINSIZE 16 /* minimum allocation size */ #define KALLOC_LOG2_MINALIGN 4 /* log2 minimum alignment */ #define LINEAR_KERNEL_ADDRESS ((vm_offset_t) 0x00000000) #define VM_MIN_KERNEL_LOADED_ADDRESS ((vm_offset_t) 0xFFFFFF8000000000UL) #define VM_MAX_KERNEL_LOADED_ADDRESS ((vm_offset_t) 0xFFFFFF801FFFFFFFUL) /* * Conversion between 80386 pages and VM pages */ #define trunc_i386_to_vm(p) (atop(trunc_page(i386_ptob(p)))) #define round_i386_to_vm(p) (atop(round_page(i386_ptob(p)))) #define vm_to_i386(p) (i386_btop(ptoa(p))) #define PMAP_SET_CACHE_ATTR(mem, object, cache_attr, batch_pmap_op) \ MACRO_BEGIN \ pmap_set_cache_attributes(VM_PAGE_GET_PHYS_PAGE(mem), (cache_attr)); \ (object)->set_cache_attr = TRUE; \ (void) batch_pmap_op; \ MACRO_END #define PMAP_BATCH_SET_CACHE_ATTR(object, user_page_list, cache_attr, num_pages, batch_pmap_op) \ MACRO_BEGIN \ (void) user_page_list; \ (void) num_pages; \ (void) batch_pmap_op; \ MACRO_END #define IS_USERADDR64_CANONICAL(addr) \ ((addr) < (VM_MAX_USER_PAGE_ADDRESS)) #endif /* MACH_KERNEL_PRIVATE */ #ifdef XNU_KERNEL_PRIVATE #define ML_ADDRPERM(addr, slide) ((addr) + (slide)) #endif /* XNU_KERNEL_PRIVATE */ #endif /* KERNEL_PRIVATE */ #endif /* defined (__i386__) || defined (__x86_64__) */ #endif /* _MACH_I386_VM_PARAM_H_ */ |