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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * @OSF_COPYRIGHT@
- */
- /*
- * HISTORY
- *
- * Revision 1.1.1.1 1998/09/22 21:05:31 wsanchez
- * Import of Mac OS X kernel (~semeria)
- *
- * Revision 1.1.1.1 1998/03/07 02:25:46 wsanchez
- * Import of OSF Mach kernel (~mburg)
- *
- * Revision 1.1.5.1 1995/01/16 17:22:27 bolinger
- * Import files unchanged from osc1.3b11 into cnmk_shared.
- * [1995/01/16 17:20:37 bolinger]
- *
- * Revision 1.1.3.2 1993/10/05 22:23:22 watkins
- * Merge forward.
- * [1993/10/05 22:05:05 watkins]
- *
- * Revision 1.1.1.2 1993/09/28 19:42:50 watkins
- * Created to comply with spec.
- *
- * $EndLog$
- */
- /*
- * File: mach/vm_region.h
- *
- * Define the attributes of a task's memory region
- *
- */
-
- #ifndef _MACH_VM_REGION_H_
- #define _MACH_VM_REGION_H_
-
- #include <mach/boolean.h>
- #include <mach/vm_prot.h>
- #include <mach/vm_inherit.h>
- #include <mach/vm_behavior.h>
-
- /*
- * Types defined:
- *
- * vm_region_info_t memory region attributes
- */
-
- #define VM_REGION_INFO_MAX (1024)
- typedef int *vm_region_info_t;
- typedef int *vm_region_info_64_t;
- typedef int *vm_region_recurse_info_t;
- typedef int *vm_region_recurse_info_64_t;
- typedef int vm_region_flavor_t;
- typedef int vm_region_info_data_t[VM_REGION_INFO_MAX];
-
- #define VM_REGION_BASIC_INFO 10
-
- struct vm_region_basic_info_64 {
- vm_prot_t protection;
- vm_prot_t max_protection;
- vm_inherit_t inheritance;
- boolean_t shared;
- boolean_t reserved;
- vm_object_offset_t offset;
- vm_behavior_t behavior;
- unsigned short user_wired_count;
- };
-
- typedef struct vm_region_basic_info_64 *vm_region_basic_info_64_t;
- typedef struct vm_region_basic_info_64 vm_region_basic_info_data_64_t;
-
- #define VM_REGION_BASIC_INFO_COUNT_64 \
- (sizeof(vm_region_basic_info_data_64_t)/sizeof(int))
-
-
- struct vm_region_basic_info {
- vm_prot_t protection;
- vm_prot_t max_protection;
- vm_inherit_t inheritance;
- boolean_t shared;
- boolean_t reserved;
- #ifdef soon
- vm_object_offset_t offset;
- #else
- vm_offset_t offset;
- #endif
- vm_behavior_t behavior;
- unsigned short user_wired_count;
- };
-
- typedef struct vm_region_basic_info *vm_region_basic_info_t;
- typedef struct vm_region_basic_info vm_region_basic_info_data_t;
-
- #define VM_REGION_BASIC_INFO_COUNT \
- (sizeof(vm_region_basic_info_data_t)/sizeof(int))
-
-
-
- #define VM_REGION_EXTENDED_INFO 11
-
- #define SM_COW 1
- #define SM_PRIVATE 2
- #define SM_EMPTY 3
- #define SM_SHARED 4
- #define SM_TRUESHARED 5
- #define SM_PRIVATE_ALIASED 6
- #define SM_SHARED_ALIASED 7
-
- /*
- * For submap info, the SM flags above are overlayed when a submap
- * is encountered. The field denotes whether or not machine level mapping
- * information is being shared. PTE's etc. When such sharing is taking
- * place the value returned is SM_TRUESHARED otherwise SM_PRIVATE is passed
- * back.
- */
-
-
- struct vm_region_extended_info {
- vm_prot_t protection;
- unsigned int user_tag;
- unsigned int pages_resident;
- unsigned int pages_shared_now_private;
- unsigned int pages_swapped_out;
- unsigned int pages_dirtied;
- unsigned int ref_count;
- unsigned short shadow_depth;
- unsigned char external_pager;
- unsigned char share_mode;
- };
-
- typedef struct vm_region_extended_info *vm_region_extended_info_t;
- typedef struct vm_region_extended_info vm_region_extended_info_data_t;
-
- #define VM_REGION_EXTENDED_INFO_COUNT \
- (sizeof(vm_region_extended_info_data_t)/sizeof(int))
-
-
- #define VM_REGION_TOP_INFO 12
-
- struct vm_region_top_info {
- unsigned int obj_id;
- unsigned int ref_count;
- unsigned int private_pages_resident;
- unsigned int shared_pages_resident;
- unsigned char share_mode;
- };
-
- typedef struct vm_region_top_info *vm_region_top_info_t;
- typedef struct vm_region_top_info vm_region_top_info_data_t;
-
- #define VM_REGION_TOP_INFO_COUNT \
- (sizeof(vm_region_top_info_data_t)/sizeof(int))
-
-
-
- /*
- * vm_region_submap_info will return information on a submap or object.
- * The user supplies a nesting level on the call. When a walk of the
- * user's map is done and a submap is encountered, the nesting count is
- * checked. If the nesting count is greater than 1 the submap is entered and
- * the offset relative to the address in the base map is examined. If the
- * nesting count is zero, the information on the submap is returned.
- * The caller may thus learn about a submap and its contents by judicious
- * choice of the base map address and nesting count. The nesting count
- * allows penetration of recursively mapped submaps. If a submap is
- * encountered as a mapped entry of another submap, the caller may bump
- * the nesting count and call vm_region_recurse again on the target address
- * range. The "is_submap" field tells the caller whether or not a submap
- * has been encountered.
- *
- * Object only fields are filled in through a walking of the object shadow
- * chain (where one is present), and a walking of the resident page queue.
- *
- */
- struct vm_region_submap_info {
- vm_prot_t protection; /* present access protection */
- vm_prot_t max_protection; /* max avail through vm_prot */
- vm_inherit_t inheritance;/* behavior of map/obj on fork */
- #ifdef soon
- vm_object_offset_t offset; /* offset into object/map */
- #else
- vm_offset_t offset; /* offset into object/map */
- #endif
- unsigned int user_tag; /* user tag on map entry */
- unsigned int pages_resident; /* only valid for objects */
- unsigned int pages_shared_now_private; /* only for objects */
- unsigned int pages_swapped_out; /* only for objects */
- unsigned int pages_dirtied; /* only for objects */
- unsigned int ref_count; /* obj/map mappers, etc */
- unsigned short shadow_depth; /* only for obj */
- unsigned char external_pager; /* only for obj */
- unsigned char share_mode; /* see enumeration */
- boolean_t is_submap; /* submap vs obj */
- vm_behavior_t behavior; /* access behavior hint */
- vm_offset_t object_id; /* obj/map name, not a handle */
- unsigned short user_wired_count;
- };
-
- typedef struct vm_region_submap_info *vm_region_submap_info_t;
- typedef struct vm_region_submap_info vm_region_submap_info_data_t;
-
- #define VM_REGION_SUBMAP_INFO_COUNT \
- (sizeof(vm_region_submap_info_data_t)/sizeof(int))
-
-
-
- struct vm_region_submap_info_64 {
- vm_prot_t protection; /* present access protection */
- vm_prot_t max_protection; /* max avail through vm_prot */
- vm_inherit_t inheritance;/* behavior of map/obj on fork */
- vm_object_offset_t offset; /* offset into object/map */
- unsigned int user_tag; /* user tag on map entry */
- unsigned int pages_resident; /* only valid for objects */
- unsigned int pages_shared_now_private; /* only for objects */
- unsigned int pages_swapped_out; /* only for objects */
- unsigned int pages_dirtied; /* only for objects */
- unsigned int ref_count; /* obj/map mappers, etc */
- unsigned short shadow_depth; /* only for obj */
- unsigned char external_pager; /* only for obj */
- unsigned char share_mode; /* see enumeration */
- boolean_t is_submap; /* submap vs obj */
- vm_behavior_t behavior; /* access behavior hint */
- vm_offset_t object_id; /* obj/map name, not a handle */
- unsigned short user_wired_count;
- };
-
- typedef struct vm_region_submap_info_64 *vm_region_submap_info_64_t;
- typedef struct vm_region_submap_info_64 vm_region_submap_info_data_64_t;
-
- #define VM_REGION_SUBMAP_INFO_COUNT_64 \
- (sizeof(vm_region_submap_info_data_64_t)/sizeof(int))
-
-
- struct vm_read_entry {
- vm_address_t address;
- vm_size_t size;
- };
-
- #define VM_MAP_ENTRY_MAX (256)
-
- typedef struct vm_read_entry vm_read_entry_t[VM_MAP_ENTRY_MAX];
-
- #endif /*_MACH_VM_REGION_H_*/
-