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          0x00020000ULL
  43 #define SHARED_REGION_NESTING_MAX_I386          0xFFFE0000ULL
  44
  45 #define SHARED_REGION_BASE_X86_64               0x00007FFF60000000ULL
  46 #define SHARED_REGION_SIZE_X86_64               0x000000009FE00000ULL
  47 #define SHARED_REGION_NESTING_BASE_X86_64       0x00007FFF60000000ULL
  48 #define SHARED_REGION_NESTING_SIZE_X86_64       0x000000009FE00000ULL
  49 #define SHARED_REGION_NESTING_MIN_X86_64        0x0000000000020000ULL
  50 #define SHARED_REGION_NESTING_MAX_X86_64        0xFFFFFFFFFFFE0000ULL
  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                  0x30000000ULL
  67 #define SHARED_REGION_SIZE_ARM                  0x10000000ULL
  68 #define SHARED_REGION_NESTING_BASE_ARM          0x30000000ULL
  69 #define SHARED_REGION_NESTING_SIZE_ARM          0x08000000ULL
  70 #define SHARED_REGION_NESTING_MIN_ARM           ?
  71 #define SHARED_REGION_NESTING_MAX_ARM           ?
  72
  73 /*
  74  * All shared_region_* declarations are a private interface
  75  * between dyld and the kernel.
  76  *
  77  */
  78 struct shared_file_mapping_np {
  79         mach_vm_address_t       sfm_address;
  80         mach_vm_size_t          sfm_size;
  81         mach_vm_offset_t        sfm_file_offset;
  82         vm_prot_t               sfm_max_prot;
  83         vm_prot_t               sfm_init_prot;
  84 };
  85 #define VM_PROT_COW  0x8  /* must not interfere with normal prot assignments */
  86 #define VM_PROT_ZF  0x10  /* must not interfere with normal prot assignments */
  87
  88 #ifndef KERNEL
  89
  90 __BEGIN_DECLS
  91 int     shared_region_check_np(uint64_t *startaddress);
  92 int     shared_region_map_np(int fd,
  93                              uint32_t mappingCount,
  94                              const struct shared_file_mapping_np *mappings);
  95 __END_DECLS
  96
  97 #endif /* !KERNEL */
  98
  99 #endif /* _MACH_SHARED_REGION_H_ */