osfmk/mach/shared_region.h

   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 #define SHARED_REGION_BASE_PPC                  0x90000000ULL
  53 #define SHARED_REGION_SIZE_PPC                  0x20000000ULL
  54 #define SHARED_REGION_NESTING_BASE_PPC          0x90000000ULL
  55 #define SHARED_REGION_NESTING_SIZE_PPC          0x10000000ULL
  56 #define SHARED_REGION_NESTING_MIN_PPC           0x10000000ULL
  57 #define SHARED_REGION_NESTING_MAX_PPC           0x10000000ULL
  58
  59 #define SHARED_REGION_BASE_PPC64                0x00007FFF60000000ULL
  60 #define SHARED_REGION_SIZE_PPC64                0x00000000A0000000ULL
  61 #define SHARED_REGION_NESTING_BASE_PPC64        0x00007FFF60000000ULL
  62 #define SHARED_REGION_NESTING_SIZE_PPC64        0x00000000A0000000ULL
  63 #define SHARED_REGION_NESTING_MIN_PPC64         0x0000000010000000ULL
  64 #define SHARED_REGION_NESTING_MAX_PPC64         0x0000000010000000ULL
  65
  66 #define SHARED_REGION_BASE_ARM                  0x1A000000ULL
  67 #define SHARED_REGION_SIZE_ARM                  0x26000000ULL
  68 #define SHARED_REGION_NESTING_BASE_ARM          0x1A000000ULL
  69 #define SHARED_REGION_NESTING_SIZE_ARM          0x26000000ULL
  70 #define SHARED_REGION_NESTING_MIN_ARM           ?
  71 #define SHARED_REGION_NESTING_MAX_ARM           ?
  72
  73
  74 #ifdef XNU_KERNEL_PRIVATE
  75 /* ARM64_TODO: move to higher memory */
  76 #endif
  77 #define SHARED_REGION_BASE_ARM64                0x180000000ULL
  78 #define SHARED_REGION_SIZE_ARM64                0x100000000ULL
  79 #define SHARED_REGION_NESTING_BASE_ARM64        0x180000000ULL
  80 #define SHARED_REGION_NESTING_SIZE_ARM64        0x100000000ULL
  81 #define SHARED_REGION_NESTING_MIN_ARM64         ?
  82 #define SHARED_REGION_NESTING_MAX_ARM64         ?
  83
  84 #if defined(__i386__)
  85 #define SHARED_REGION_BASE                      SHARED_REGION_BASE_I386
  86 #define SHARED_REGION_SIZE                      SHARED_REGION_SIZE_I386
  87 #define SHARED_REGION_NESTING_BASE              SHARED_REGION_NESTING_BASE_I386
  88 #define SHARED_REGION_NESTING_SIZE              SHARED_REGION_NESTING_SIZE_I386
  89 #define SHARED_REGION_NESTING_MIN               SHARED_REGION_NESTING_MIN_I386
  90 #define SHARED_REGION_NESTING_MAX               SHARED_REGION_NESTING_MAX_I386
  91 #elif defined(__x86_64__)
  92 #define SHARED_REGION_BASE                      SHARED_REGION_BASE_X86_64
  93 #define SHARED_REGION_SIZE                      SHARED_REGION_SIZE_X86_64
  94 #define SHARED_REGION_NESTING_BASE              SHARED_REGION_NESTING_BASE_X86_64
  95 #define SHARED_REGION_NESTING_SIZE              SHARED_REGION_NESTING_SIZE_X86_64
  96 #define SHARED_REGION_NESTING_MIN               SHARED_REGION_NESTING_MIN_X86_64
  97 #define SHARED_REGION_NESTING_MAX               SHARED_REGION_NESTING_MAX_X86_64
  98 #elif defined(__arm__)
  99 #define SHARED_REGION_BASE                      SHARED_REGION_BASE_ARM
 100 #define SHARED_REGION_SIZE                      SHARED_REGION_SIZE_ARM
 101 #define SHARED_REGION_NESTING_BASE              SHARED_REGION_NESTING_BASE_ARM
 102 #define SHARED_REGION_NESTING_SIZE              SHARED_REGION_NESTING_SIZE_ARM
 103 #define SHARED_REGION_NESTING_MIN               SHARED_REGION_NESTING_MIN_ARM
 104 #define SHARED_REGION_NESTING_MAX               SHARED_REGION_NESTING_MAX_ARM
 105 #elif defined(__arm64__) && defined(__LP64__)
 106 #define SHARED_REGION_BASE                      SHARED_REGION_BASE_ARM64
 107 #define SHARED_REGION_SIZE                      SHARED_REGION_SIZE_ARM64
 108 #define SHARED_REGION_NESTING_BASE              SHARED_REGION_NESTING_BASE_ARM64
 109 #define SHARED_REGION_NESTING_SIZE              SHARED_REGION_NESTING_SIZE_ARM64
 110 #define SHARED_REGION_NESTING_MIN               SHARED_REGION_NESTING_MIN_ARM64
 111 #define SHARED_REGION_NESTING_MAX               SHARED_REGION_NESTING_MAX_ARM64
 112 #endif
 113
 114 #ifdef KERNEL_PRIVATE
 115
 116 /*
 117  * This is routine sets  the current source of power.
 118  * Arguments:
 119  * 0 if it is external source (connected to power )
 120  * 1 if it is internal power source ie battery
 121  */
 122
 123 void post_sys_powersource(int);
 124
 125 #endif /* KERNEL_PRIVATE */
 126 /*
 127  * All shared_region_* declarations are a private interface
 128  * between dyld and the kernel.
 129  *
 130  */
 131 struct shared_file_mapping_np {
 132         mach_vm_address_t       sfm_address;
 133         mach_vm_size_t          sfm_size;
 134         mach_vm_offset_t        sfm_file_offset;
 135         vm_prot_t               sfm_max_prot;
 136         vm_prot_t               sfm_init_prot;
 137 };
 138 #define VM_PROT_COW  0x8  /* must not interfere with normal prot assignments */
 139 #define VM_PROT_ZF  0x10  /* must not interfere with normal prot assignments */
 140 #define VM_PROT_SLIDE  0x20  /* must not interfere with normal prot assignments */
 141
 142 #ifndef KERNEL
 143
 144 __BEGIN_DECLS
 145 int     shared_region_check_np(uint64_t *startaddress);
 146 int     shared_region_map_np(int fd,
 147     uint32_t mappingCount,
 148     const struct shared_file_mapping_np *mappings);
 149 int     shared_region_slide_np(void);
 150 __END_DECLS
 151
 152 #endif /* !KERNEL */
 153
 154 #endif /* _MACH_SHARED_REGION_H_ */