| 1 | /* |
| 2 | * Copyright (c) 2000-2012 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 | * @OSF_COPYRIGHT@ |
| 30 | */ |
| 31 | /* |
| 32 | * Mach Operating System |
| 33 | * Copyright (c) 1991,1990,1989,1988 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 Software.Distribution@CS.CMU.EDU |
| 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 | * Copyright (c) 1994 The University of Utah and |
| 59 | * the Computer Systems Laboratory at the University of Utah (CSL). |
| 60 | * All rights reserved. |
| 61 | * |
| 62 | * Permission to use, copy, modify and distribute this software is hereby |
| 63 | * granted provided that (1) source code retains these copyright, permission, |
| 64 | * and disclaimer notices, and (2) redistributions including binaries |
| 65 | * reproduce the notices in supporting documentation, and (3) all advertising |
| 66 | * materials mentioning features or use of this software display the following |
| 67 | * acknowledgement: ``This product includes software developed by the |
| 68 | * Computer Systems Laboratory at the University of Utah.'' |
| 69 | * |
| 70 | * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS |
| 71 | * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF |
| 72 | * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| 73 | * |
| 74 | * CSL requests users of this software to return to csl-dist@cs.utah.edu any |
| 75 | * improvements that they make and grant CSL redistribution rights. |
| 76 | * |
| 77 | */ |
| 78 | |
| 79 | /* |
| 80 | * File: vm_param.h |
| 81 | * Author: Avadis Tevanian, Jr. |
| 82 | * Date: 1985 |
| 83 | * |
| 84 | * I386 machine dependent virtual memory parameters. |
| 85 | * Most of the declarations are preceeded by I386_ (or i386_) |
| 86 | * which is OK because only I386 specific code will be using |
| 87 | * them. |
| 88 | */ |
| 89 | |
| 90 | #ifndef _MACH_I386_VM_PARAM_H_ |
| 91 | #define _MACH_I386_VM_PARAM_H_ |
| 92 | |
| 93 | #if defined (__i386__) || defined (__x86_64__) |
| 94 | |
| 95 | #if !defined(KERNEL) && !defined(__ASSEMBLER__) |
| 96 | |
| 97 | #include <mach/vm_page_size.h> |
| 98 | #endif |
| 99 | |
| 100 | #define BYTE_SIZE 8 /* byte size in bits */ |
| 101 | |
| 102 | #define I386_PGBYTES 4096 /* bytes per 80386 page */ |
| 103 | #define I386_PGSHIFT 12 /* bitshift for pages */ |
| 104 | |
| 105 | |
| 106 | #if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) |
| 107 | #define PAGE_SHIFT I386_PGSHIFT |
| 108 | #define PAGE_SIZE I386_PGBYTES |
| 109 | #define PAGE_MASK (PAGE_SIZE-1) |
| 110 | #else /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */ |
| 111 | #define PAGE_SHIFT vm_page_shift |
| 112 | #define PAGE_SIZE vm_page_size |
| 113 | #define PAGE_MASK vm_page_mask |
| 114 | #endif /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */ |
| 115 | |
| 116 | #define PAGE_MAX_SHIFT 14 |
| 117 | #define PAGE_MAX_SIZE (1 << PAGE_MAX_SHIFT) |
| 118 | #define PAGE_MAX_MASK (PAGE_MAX_SIZE-1) |
| 119 | |
| 120 | #define PAGE_MIN_SHIFT 12 |
| 121 | #define PAGE_MIN_SIZE (1 << PAGE_MIN_SHIFT) |
| 122 | #define PAGE_MIN_MASK (PAGE_MIN_SIZE-1) |
| 123 | |
| 124 | |
| 125 | #define VM_MIN_ADDRESS64 ((user_addr_t) 0x0000000000000000ULL) |
| 126 | /* |
| 127 | * Default top of user stack, grows down from here. |
| 128 | * Address chosen to be 1G (3rd level page table entry) below SHARED_REGION_BASE_X86_64 |
| 129 | * minus additional 1Meg (1/2 1st level page table coverage) to allow a redzone after it. |
| 130 | */ |
| 131 | #define VM_USRSTACK64 ((user_addr_t) (0x00007FF7C0000000ull - (1024 * 1024))) |
| 132 | |
| 133 | /* |
| 134 | * XXX TODO: Obsolete? |
| 135 | */ |
| 136 | #define VM_DYLD64 ((user_addr_t) 0x00007FFF5FC00000ULL) |
| 137 | #define VM_LIB64_SHR_DATA ((user_addr_t) 0x00007FFF60000000ULL) |
| 138 | #define VM_LIB64_SHR_TEXT ((user_addr_t) 0x00007FFF80000000ULL) |
| 139 | /* |
| 140 | * the end of the usable user address space , for now about 47 bits. |
| 141 | * the 64 bit commpage is past the end of this |
| 142 | */ |
| 143 | #define VM_MAX_PAGE_ADDRESS ((user_addr_t) 0x00007FFFFFE00000ULL) |
| 144 | /* |
| 145 | * canonical end of user address space for limits checking |
| 146 | */ |
| 147 | #define VM_MAX_USER_PAGE_ADDRESS ((user_addr_t)0x00007FFFFFFFF000ULL) |
| 148 | |
| 149 | |
| 150 | /* system-wide values */ |
| 151 | #define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0) |
| 152 | #define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS) |
| 153 | |
| 154 | /* process-relative values (all 32-bit legacy only for now) */ |
| 155 | #define VM_MIN_ADDRESS ((vm_offset_t) 0) |
| 156 | #define VM_USRSTACK32 ((vm_offset_t) 0xC0000000) /* ASLR slides stack down by up to 1 MB */ |
| 157 | #define VM_MAX_ADDRESS ((vm_offset_t) 0xFFE00000) |
| 158 | |
| 159 | |
| 160 | |
| 161 | #endif /* defined (__i386__) || defined (__x86_64__) */ |
| 162 | |
| 163 | #endif /* _MACH_I386_VM_PARAM_H_ */ |