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[apple/xnu.git] / osfmk / vm / vm_map.h
diff --git a/osfmk/vm/vm_map.h b/osfmk/vm/vm_map.h
index 02bf60eea1ce82fcf741f79dc6081f81f314e5e0..44c9879254af3838e272ff4e20f827150a3fa44e 100644 (file)
--- a/osfmk/vm/vm_map.h
+++ b/osfmk/vm/vm_map.h
@@ -1,23 +1,29 @@
 /*
 /*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
  *
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
  * 
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
  * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -83,6 +89,13 @@ __BEGIN_DECLS
 extern void    vm_map_reference(vm_map_t       map);
 extern vm_map_t current_map(void);
 
 extern void    vm_map_reference(vm_map_t       map);
 extern vm_map_t current_map(void);
 
+/* Setup reserved areas in a new VM map */
+extern kern_return_t   vm_map_exec(
+                               vm_map_t                new_map,
+                               task_t                  task,
+                               void                    *fsroot,
+                               cpu_type_t              cpu);
+
 __END_DECLS
 
 #ifdef MACH_KERNEL_PRIVATE
 __END_DECLS
 
 #ifdef MACH_KERNEL_PRIVATE
@@ -92,7 +105,7 @@ __END_DECLS
 
 #include <vm/vm_object.h>
 #include <vm/vm_page.h>
 
 #include <vm/vm_object.h>
 #include <vm/vm_page.h>
-#include <kern/lock.h>
+#include <kern/locks.h>
 #include <kern/zalloc.h>
 #include <kern/macro_help.h>
 
 #include <kern/zalloc.h>
 #include <kern/macro_help.h>
 
@@ -101,6 +114,9 @@ __END_DECLS
 #define current_map_fast()     (current_thread()->map)
 #define        current_map()           (current_map_fast())
 
 #define current_map_fast()     (current_thread()->map)
 #define        current_map()           (current_map_fast())
 
+#include <vm/vm_map_store.h>
+
+
 /*
  *     Types defined:
  *
 /*
  *     Types defined:
  *
@@ -122,13 +138,14 @@ typedef struct vm_map_entry       *vm_map_entry_t;
  *             memory object or a sub map (of the kernel map).
  */
 typedef union vm_map_object {
  *             memory object or a sub map (of the kernel map).
  */
 typedef union vm_map_object {
-       vm_object_t             vm_object;      /* object object */
-       vm_map_t                sub_map;        /* belongs to another map */
+       vm_object_t             vmo_object;     /* object object */
+       vm_map_t                vmo_submap;     /* belongs to another map */
 } vm_map_object_t;
 
 } vm_map_object_t;
 
-#define named_entry_lock_init(object)   mutex_init(&(object)->Lock, 0)
-#define named_entry_lock(object)          mutex_lock(&(object)->Lock)
-#define named_entry_unlock(object)        mutex_unlock(&(object)->Lock)   
+#define named_entry_lock_init(object)  lck_mtx_init(&(object)->Lock, &vm_object_lck_grp, &vm_object_lck_attr)
+#define named_entry_lock_destroy(object)       lck_mtx_destroy(&(object)->Lock, &vm_object_lck_grp)
+#define named_entry_lock(object)               lck_mtx_lock(&(object)->Lock)
+#define named_entry_unlock(object)             lck_mtx_unlock(&(object)->Lock)   
 
 /*
  *     Type:           vm_named_entry_t [internal use only]
 
 /*
  *     Type:           vm_named_entry_t [internal use only]
@@ -149,20 +166,23 @@ typedef union vm_map_object {
  */
 
 struct vm_named_entry {
  */
 
 struct vm_named_entry {
-       decl_mutex_data(,       Lock)           /* Synchronization */
+       decl_lck_mtx_data(,     Lock)           /* Synchronization */
        union {
                vm_object_t     object;         /* object I point to */
                memory_object_t pager;          /* amo pager port */
                vm_map_t        map;            /* map backing submap */
        union {
                vm_object_t     object;         /* object I point to */
                memory_object_t pager;          /* amo pager port */
                vm_map_t        map;            /* map backing submap */
+               vm_map_copy_t   copy;           /* a VM map copy */
        } backing;
        vm_object_offset_t      offset;         /* offset into object */
        vm_object_size_t        size;           /* size of region */
        } backing;
        vm_object_offset_t      offset;         /* offset into object */
        vm_object_size_t        size;           /* size of region */
+       vm_object_offset_t      data_offset;    /* offset to first byte of data */
        vm_prot_t               protection;     /* access permissions */
        int                     ref_count;      /* Number of references */
        unsigned int                            /* Is backing.xxx : */
        /* boolean_t */         internal:1,     /* ... an internal object */
        /* boolean_t */         is_sub_map:1,   /* ... a submap? */
        vm_prot_t               protection;     /* access permissions */
        int                     ref_count;      /* Number of references */
        unsigned int                            /* Is backing.xxx : */
        /* boolean_t */         internal:1,     /* ... an internal object */
        /* boolean_t */         is_sub_map:1,   /* ... a submap? */
-       /* boolean_t */         is_pager:1;     /* ... a pager port */
+       /* boolean_t */         is_pager:1,     /* ... a pager port */
+       /* boolean_t */         is_copy:1;      /* ... a VM map copy */
 };
 
 /*
 };
 
 /*
@@ -178,6 +198,7 @@ struct vm_named_entry {
  *             Control information for virtual copy operations is also
  *             stored in the address map entry.
  */
  *             Control information for virtual copy operations is also
  *             stored in the address map entry.
  */
+
 struct vm_map_links {
        struct vm_map_entry     *prev;          /* previous entry */
        struct vm_map_entry     *next;          /* next entry */
 struct vm_map_links {
        struct vm_map_entry     *prev;          /* previous entry */
        struct vm_map_entry     *next;          /* next entry */
@@ -185,33 +206,128 @@ struct vm_map_links {
        vm_map_offset_t         end;            /* end address */
 };
 
        vm_map_offset_t         end;            /* end address */
 };
 
+/*
+ * IMPORTANT:
+ * The "alias" field can be updated while holding the VM map lock
+ * "shared".  It's OK as along as it's the only field that can be
+ * updated without the VM map "exclusive" lock.
+ */
+#define VME_OBJECT(entry) ((entry)->vme_object.vmo_object)
+#define VME_OBJECT_SET(entry, object)                          \
+       MACRO_BEGIN                                             \
+       (entry)->vme_object.vmo_object = (object);              \
+       MACRO_END
+#define VME_SUBMAP(entry) ((entry)->vme_object.vmo_submap)
+#define VME_SUBMAP_SET(entry, submap)                          \
+       MACRO_BEGIN                                             \
+       (entry)->vme_object.vmo_submap = (submap);              \
+       MACRO_END
+#define VME_OFFSET(entry) ((entry)->vme_offset & ~PAGE_MASK)
+#define VME_OFFSET_SET(entry, offset)          \
+       MACRO_BEGIN                             \
+       int __alias;                            \
+       __alias = VME_ALIAS((entry));           \
+       assert((offset & PAGE_MASK) == 0);      \
+       (entry)->vme_offset = offset | __alias; \
+       MACRO_END
+#define VME_OBJECT_SHADOW(entry, length)                       \
+       MACRO_BEGIN                                             \
+       vm_object_t             __object;                       \
+       vm_object_offset_t      __offset;                       \
+       __object = VME_OBJECT((entry));                         \
+       __offset = VME_OFFSET((entry));                         \
+       vm_object_shadow(&__object, &__offset, (length));       \
+       if (__object != VME_OBJECT((entry))) {                  \
+               VME_OBJECT_SET((entry), __object);              \
+       }                                                       \
+       if (__offset != VME_OFFSET((entry))) {                  \
+               VME_OFFSET_SET((entry), __offset);              \
+       }                                                       \
+       MACRO_END
+
+#define VME_ALIAS_MASK (PAGE_MASK)
+#define VME_ALIAS(entry) ((unsigned int)((entry)->vme_offset & VME_ALIAS_MASK))
+#define VME_ALIAS_SET(entry, alias) \
+       MACRO_BEGIN                                                     \
+       vm_map_offset_t __offset;                                       \
+       __offset = VME_OFFSET((entry));                                 \
+       (entry)->vme_offset = __offset | ((alias) & VME_ALIAS_MASK);    \
+       MACRO_END
+
 struct vm_map_entry {
        struct vm_map_links     links;          /* links to other entries */
 #define vme_prev               links.prev
 #define vme_next               links.next
 #define vme_start              links.start
 #define vme_end                        links.end
 struct vm_map_entry {
        struct vm_map_links     links;          /* links to other entries */
 #define vme_prev               links.prev
 #define vme_next               links.next
 #define vme_start              links.start
 #define vme_end                        links.end
-       union vm_map_object     object;         /* object I point to */
-       vm_object_offset_t      offset;         /* offset into object */
+
+       struct vm_map_store     store;
+       union vm_map_object     vme_object;     /* object I point to */
+       vm_object_offset_t      vme_offset;     /* offset into object */
+
        unsigned int
        unsigned int
-       /* boolean_t */         is_shared:1,    /* region is shared */
-       /* boolean_t */         is_sub_map:1,   /* Is "object" a submap? */
-       /* boolean_t */         in_transition:1, /* Entry being changed */
-       /* boolean_t */         needs_wakeup:1,  /* Waiters on in_transition */
-       /* vm_behavior_t */     behavior:2,     /* user paging behavior hint */
+       /* boolean_t */ is_shared:1,    /* region is shared */
+       /* boolean_t */ is_sub_map:1,   /* Is "object" a submap? */
+       /* boolean_t */ in_transition:1, /* Entry being changed */
+       /* boolean_t */ needs_wakeup:1, /* Waiters on in_transition */
+       /* vm_behavior_t */ behavior:2, /* user paging behavior hint */
                /* behavior is not defined for submap type */
                /* behavior is not defined for submap type */
-       /* boolean_t */         needs_copy:1,   /* object need to be copied? */
+       /* boolean_t */ needs_copy:1,   /* object need to be copied? */
+
                /* Only in task maps: */
                /* Only in task maps: */
-       /* vm_prot_t */         protection:3,   /* protection code */
-       /* vm_prot_t */         max_protection:3,/* maximum protection */
-       /* vm_inherit_t */      inheritance:2,  /* inheritance */
-       /* boolean_t */         use_pmap:1,     /* nested pmaps */
-       /* unsigned char */     alias:8,        /* user alias */
-       /* unsigned char */     pad:8;          /* available bits */
+       /* vm_prot_t */ protection:3,   /* protection code */
+       /* vm_prot_t */ max_protection:3, /* maximum protection */
+       /* vm_inherit_t */ inheritance:2, /* inheritance */
+       /* boolean_t */ use_pmap:1,     /*
+                                        * use_pmap is overloaded:
+                                        * if "is_sub_map":
+                                        *      use a nested pmap?
+                                        * else (i.e. if object):
+                                        *      use pmap accounting
+                                        *      for footprint?
+                                        */
+       /* boolean_t */ no_cache:1,     /* should new pages be cached? */
+       /* boolean_t */ permanent:1,    /* mapping can not be removed */
+       /* boolean_t */ superpage_size:1, /* use superpages of a certain size */
+       /* boolean_t */ map_aligned:1,  /* align to map's page size */
+       /* boolean_t */ zero_wired_pages:1, /* zero out the wired pages of
+                                            * this entry it is being deleted
+                                            * without unwiring them */
+       /* boolean_t */ used_for_jit:1,
+       /* boolean_t */ from_reserved_zone:1, /* Allocated from
+                                              * kernel reserved zone    */
+
+       /* iokit accounting: use the virtual size rather than resident size: */
+       /* boolean_t */ iokit_acct:1,
+       /* boolean_t */ vme_resilient_codesign:1,
+       /* boolean_t */ vme_resilient_media:1,
+               __unused:6;
+;
+
        unsigned short          wired_count;    /* can be paged if = 0 */
        unsigned short          user_wired_count; /* for vm_wire */
        unsigned short          wired_count;    /* can be paged if = 0 */
        unsigned short          user_wired_count; /* for vm_wire */
+#if    DEBUG
+#define        MAP_ENTRY_CREATION_DEBUG (1)
+#define MAP_ENTRY_INSERTION_DEBUG (1)
+#endif 
+#if    MAP_ENTRY_CREATION_DEBUG
+       struct vm_map_header    *vme_creation_maphdr;
+       uintptr_t               vme_creation_bt[16];
+#endif
+#if    MAP_ENTRY_INSERTION_DEBUG
+       uintptr_t               vme_insertion_bt[16];
+#endif
 };
 
 };
 
+/*
+ * Convenience macros for dealing with superpages
+ * SUPERPAGE_NBASEPAGES is architecture dependent and defined in pmap.h
+ */
+#define SUPERPAGE_SIZE (PAGE_SIZE*SUPERPAGE_NBASEPAGES)
+#define SUPERPAGE_MASK (-SUPERPAGE_SIZE)
+#define SUPERPAGE_ROUND_DOWN(a) (a & SUPERPAGE_MASK)
+#define SUPERPAGE_ROUND_UP(a) ((a + SUPERPAGE_SIZE-1) & SUPERPAGE_MASK)
+
 /*
  * wired_counts are unsigned short.  This value is used to safeguard
  * against any mishaps due to runaway user programs.
 /*
  * wired_counts are unsigned short.  This value is used to safeguard
  * against any mishaps due to runaway user programs.
@@ -226,13 +342,24 @@ struct vm_map_entry {
  *     Description:
  *             Header for a vm_map and a vm_map_copy.
  */
  *     Description:
  *             Header for a vm_map and a vm_map_copy.
  */
+
+
 struct vm_map_header {
        struct vm_map_links     links;          /* first, last, min, max */
        int                     nentries;       /* Number of entries */
        boolean_t               entries_pageable;
                                                /* are map entries pageable? */
 struct vm_map_header {
        struct vm_map_links     links;          /* first, last, min, max */
        int                     nentries;       /* Number of entries */
        boolean_t               entries_pageable;
                                                /* are map entries pageable? */
+       vm_map_offset_t         highest_entry_end_addr; /* The ending address of the highest allocated vm_entry_t */
+#ifdef VM_MAP_STORE_USE_RB
+       struct rb_head  rb_head_store;
+#endif
+       int                     page_shift;     /* page shift */
 };
 
 };
 
+#define VM_MAP_HDR_PAGE_SHIFT(hdr) ((hdr)->page_shift)
+#define VM_MAP_HDR_PAGE_SIZE(hdr) (1 << VM_MAP_HDR_PAGE_SHIFT((hdr)))
+#define VM_MAP_HDR_PAGE_MASK(hdr) (VM_MAP_HDR_PAGE_SIZE((hdr)) - 1)
+
 /*
  *     Type:           vm_map_t [exported; contents invisible]
  *
 /*
  *     Type:           vm_map_t [exported; contents invisible]
  *
@@ -248,27 +375,49 @@ struct vm_map_header {
  *             insertion, or removal.  Another hint is used to
  *             quickly find free space.
  */
  *             insertion, or removal.  Another hint is used to
  *             quickly find free space.
  */
-struct vm_map {
-       lock_t                  lock;           /* uni- and smp-lock */
+struct _vm_map {
+       lck_rw_t                        lock;           /* map lock */
        struct vm_map_header    hdr;            /* Map entry header */
 #define min_offset             hdr.links.start /* start of range */
 #define max_offset             hdr.links.end   /* end of range */
        struct vm_map_header    hdr;            /* Map entry header */
 #define min_offset             hdr.links.start /* start of range */
 #define max_offset             hdr.links.end   /* end of range */
+#define highest_entry_end      hdr.highest_entry_end_addr
        pmap_t                  pmap;           /* Physical map */
        vm_map_size_t           size;           /* virtual size */
        pmap_t                  pmap;           /* Physical map */
        vm_map_size_t           size;           /* virtual size */
+       vm_map_size_t           user_wire_limit;/* rlimit on user locked memory */
+       vm_map_size_t           user_wire_size; /* current size of user locked memory in this map */
        int                     ref_count;      /* Reference count */
 #if    TASK_SWAPPER
        int                     res_count;      /* Residence count (swap) */
        int                     sw_state;       /* Swap state */
 #endif /* TASK_SWAPPER */
        int                     ref_count;      /* Reference count */
 #if    TASK_SWAPPER
        int                     res_count;      /* Residence count (swap) */
        int                     sw_state;       /* Swap state */
 #endif /* TASK_SWAPPER */
-       decl_mutex_data(,       s_lock)         /* Lock ref, res, hint fields */
+       decl_lck_mtx_data(,     s_lock)         /* Lock ref, res fields */
+       lck_mtx_ext_t           s_lock_ext;
        vm_map_entry_t          hint;           /* hint for quick lookups */
        vm_map_entry_t          hint;           /* hint for quick lookups */
-       vm_map_entry_t          first_free;     /* First free space hint */
-       boolean_t               wait_for_space; /* Should callers wait
-                                                  for space? */
-       boolean_t               wiring_required;/* All memory wired? */
-       boolean_t               no_zero_fill;   /* No zero fill absent pages */
-       boolean_t               mapped;         /* has this map been mapped */
+       struct vm_map_links*    hole_hint;      /* hint for quick hole lookups */
+       union{
+               vm_map_entry_t          _first_free;    /* First free space hint */
+               struct vm_map_links*    _holes;         /* links all holes between entries */
+       }f_s;                                           /* Union for free space data structures being used */
+
+#define first_free             f_s._first_free
+#define holes_list             f_s._holes
+
+       unsigned int            
+       /* boolean_t */         wait_for_space:1, /* Should callers wait for space? */
+       /* boolean_t */         wiring_required:1, /* All memory wired? */
+       /* boolean_t */         no_zero_fill:1, /*No zero fill absent pages */
+       /* boolean_t */         mapped_in_other_pmaps:1, /*has this submap been mapped in maps that use a different pmap */
+       /* boolean_t */         switch_protect:1, /*  Protect map from write faults while switched */
+       /* boolean_t */         disable_vmentry_reuse:1, /*  All vm entries should keep using newer and higher addresses in the map */ 
+       /* boolean_t */         map_disallow_data_exec:1, /* Disallow execution from data pages on exec-permissive architectures */
+       /* boolean_t */         holelistenabled:1,
+       /* reserved */          pad:24;
        unsigned int            timestamp;      /* Version number */
        unsigned int            timestamp;      /* Version number */
+       unsigned int            color_rr;       /* next color (not protected by a lock) */
+#if CONFIG_FREEZE
+       void                    *default_freezer_handle;
+#endif
+       boolean_t               jit_entry_exists;
 } ;
 
 #define vm_map_to_entry(map)   ((struct vm_map_entry *) &(map)->hdr.links)
 } ;
 
 #define vm_map_to_entry(map)   ((struct vm_map_entry *) &(map)->hdr.links)
@@ -329,7 +478,11 @@ typedef struct vm_map_version {
  *
  *             The third format is a kernel buffer copy object - for data
  *             small enough that physical copies were the most efficient
  *
  *             The third format is a kernel buffer copy object - for data
  *             small enough that physical copies were the most efficient
- *             method.
+ *             method. This method uses a zero-sized array unioned with
+ *             other format-specific data in the 'c_u' member. This unsized
+ *             array overlaps the other elements and allows us to use this
+ *             extra structure space for physical memory copies. On 64-bit
+ *             systems this saves ~64 bytes per vm_map_copy.
  */
 
 struct vm_map_copy {
  */
 
 struct vm_map_copy {
@@ -340,12 +493,9 @@ struct vm_map_copy {
        vm_object_offset_t      offset;
        vm_map_size_t           size;
        union {
        vm_object_offset_t      offset;
        vm_map_size_t           size;
        union {
-           struct vm_map_header        hdr;    /* ENTRY_LIST */
-           vm_object_t                 object; /* OBJECT */
-           struct {                            
-               void                    *kdata;       /* KERNEL_BUFFER */
-               vm_size_t               kalloc_size;  /* size of this copy_t */
-           } c_k;
+               struct vm_map_header    hdr;      /* ENTRY_LIST */
+               vm_object_t             object;   /* OBJECT */
+               uint8_t                 kdata[0]; /* KERNEL_BUFFER */
        } c_u;
 };
 
        } c_u;
 };
 
@@ -353,10 +503,12 @@ struct vm_map_copy {
 #define cpy_hdr                        c_u.hdr
 
 #define cpy_object             c_u.object
 #define cpy_hdr                        c_u.hdr
 
 #define cpy_object             c_u.object
+#define cpy_kdata              c_u.kdata
+#define cpy_kdata_hdr_sz       (offsetof(struct vm_map_copy, c_u.kdata))
 
 
-#define cpy_kdata              c_u.c_k.kdata
-#define cpy_kalloc_size                c_u.c_k.kalloc_size
-
+#define VM_MAP_COPY_PAGE_SHIFT(copy) ((copy)->cpy_hdr.page_shift)
+#define VM_MAP_COPY_PAGE_SIZE(copy) (1 << VM_MAP_COPY_PAGE_SHIFT((copy)))
+#define VM_MAP_COPY_PAGE_MASK(copy) (VM_MAP_COPY_PAGE_SIZE((copy)) - 1)
 
 /*
  *     Useful macros for entry list copy objects
 
 /*
  *     Useful macros for entry list copy objects
@@ -379,16 +531,35 @@ struct vm_map_copy {
 
 #define vm_map_lock_init(map)                                          \
        ((map)->timestamp = 0 ,                                         \
 
 #define vm_map_lock_init(map)                                          \
        ((map)->timestamp = 0 ,                                         \
-       lock_init(&(map)->lock, TRUE, 0, 0))
+       lck_rw_init(&(map)->lock, &vm_map_lck_grp, &vm_map_lck_rw_attr))
 
 
-#define vm_map_lock(map)               lock_write(&(map)->lock)
+#define vm_map_lock(map)               lck_rw_lock_exclusive(&(map)->lock)
 #define vm_map_unlock(map)                                             \
 #define vm_map_unlock(map)                                             \
-               ((map)->timestamp++ ,   lock_write_done(&(map)->lock))
-#define vm_map_lock_read(map)          lock_read(&(map)->lock)
-#define vm_map_unlock_read(map)                lock_read_done(&(map)->lock)
+               ((map)->timestamp++ ,   lck_rw_done(&(map)->lock))
+#define vm_map_lock_read(map)          lck_rw_lock_shared(&(map)->lock)
+#define vm_map_unlock_read(map)                lck_rw_done(&(map)->lock)
 #define vm_map_lock_write_to_read(map)                                 \
 #define vm_map_lock_write_to_read(map)                                 \
-               ((map)->timestamp++ ,   lock_write_to_read(&(map)->lock))
-#define vm_map_lock_read_to_write(map) lock_read_to_write(&(map)->lock)
+               ((map)->timestamp++ ,   lck_rw_lock_exclusive_to_shared(&(map)->lock))
+/* lock_read_to_write() returns FALSE on failure.  Macro evaluates to 
+ * zero on success and non-zero value on failure.
+ */
+#define vm_map_lock_read_to_write(map) (lck_rw_lock_shared_to_exclusive(&(map)->lock) != TRUE)
+
+#if MACH_ASSERT || DEBUG
+#define vm_map_lock_assert_held(map) \
+       lck_rw_assert(&(map)->lock, LCK_RW_ASSERT_HELD)
+#define vm_map_lock_assert_shared(map) \
+       lck_rw_assert(&(map)->lock, LCK_RW_ASSERT_SHARED)
+#define vm_map_lock_assert_exclusive(map) \
+       lck_rw_assert(&(map)->lock, LCK_RW_ASSERT_EXCLUSIVE)
+#define vm_map_lock_assert_notheld(map) \
+       lck_rw_assert(&(map)->lock, LCK_RW_ASSERT_NOTHELD)
+#else  /* MACH_ASSERT || DEBUG */ 
+#define vm_map_lock_assert_held(map)
+#define vm_map_lock_assert_shared(map)
+#define vm_map_lock_assert_exclusive(map)
+#define vm_map_lock_assert_notheld(map)
+#endif /* MACH_ASSERT || DEBUG */
 
 /*
  *     Exported procedures that operate on vm_map_t.
 
 /*
  *     Exported procedures that operate on vm_map_t.
@@ -397,6 +568,8 @@ struct vm_map_copy {
 /* Initialize the module */
 extern void            vm_map_init(void);
 
 /* Initialize the module */
 extern void            vm_map_init(void);
 
+extern void            vm_kernel_reserved_entry_init(void);
+
 /* Allocate a range in the specified virtual address map and
  * return the entry allocated for that range. */
 extern kern_return_t vm_map_find_space(
 /* Allocate a range in the specified virtual address map and
  * return the entry allocated for that range. */
 extern kern_return_t vm_map_find_space(
@@ -407,26 +580,45 @@ extern kern_return_t vm_map_find_space(
                                int                     flags,
                                vm_map_entry_t          *o_entry);      /* OUT */
 
                                int                     flags,
                                vm_map_entry_t          *o_entry);      /* OUT */
 
+extern void vm_map_clip_start(
+       vm_map_t        map,
+       vm_map_entry_t  entry,
+       vm_map_offset_t endaddr);
+extern void vm_map_clip_end(
+       vm_map_t        map,
+       vm_map_entry_t  entry,
+       vm_map_offset_t endaddr);
+extern boolean_t vm_map_entry_should_cow_for_true_share(
+       vm_map_entry_t  entry);
+
 /* Lookup map entry containing or the specified address in the given map */
 extern boolean_t       vm_map_lookup_entry(
                                vm_map_t                map,
                                vm_map_address_t        address,
                                vm_map_entry_t          *entry);        /* OUT */
 
 /* Lookup map entry containing or the specified address in the given map */
 extern boolean_t       vm_map_lookup_entry(
                                vm_map_t                map,
                                vm_map_address_t        address,
                                vm_map_entry_t          *entry);        /* OUT */
 
+extern void            vm_map_copy_remap(
+       vm_map_t                map,
+       vm_map_entry_t          where,
+       vm_map_copy_t           copy,
+       vm_map_offset_t         adjustment,
+       vm_prot_t               cur_prot,
+       vm_prot_t               max_prot,
+       vm_inherit_t            inheritance);
+
 /* Find the VM object, offset, and protection for a given virtual address
  * in the specified map, assuming a page fault of the  type specified. */
 extern kern_return_t   vm_map_lookup_locked(
                                vm_map_t                *var_map,       /* IN/OUT */
                                vm_map_address_t        vaddr,
                                vm_prot_t               fault_type,
 /* Find the VM object, offset, and protection for a given virtual address
  * in the specified map, assuming a page fault of the  type specified. */
 extern kern_return_t   vm_map_lookup_locked(
                                vm_map_t                *var_map,       /* IN/OUT */
                                vm_map_address_t        vaddr,
                                vm_prot_t               fault_type,
+                               int                     object_lock_type,
                                vm_map_version_t        *out_version,   /* OUT */
                                vm_object_t             *object,        /* OUT */
                                vm_object_offset_t      *offset,        /* OUT */
                                vm_prot_t               *out_prot,      /* OUT */
                                boolean_t               *wired,         /* OUT */
                                vm_map_version_t        *out_version,   /* OUT */
                                vm_object_t             *object,        /* OUT */
                                vm_object_offset_t      *offset,        /* OUT */
                                vm_prot_t               *out_prot,      /* OUT */
                                boolean_t               *wired,         /* OUT */
-                               int                     *behavior,      /* OUT */
-                               vm_map_offset_t         *lo_offset,     /* OUT */
-                               vm_map_offset_t         *hi_offset,     /* OUT */
+                               vm_object_fault_info_t  fault_info,     /* OUT */
                                vm_map_t                *real_map);     /* OUT */
 
 /* Verifies that the map has not changed since the given version. */
                                vm_map_t                *real_map);     /* OUT */
 
 /* Verifies that the map has not changed since the given version. */
@@ -448,7 +640,12 @@ extern vm_map_entry_t      vm_map_entry_insert(
                                vm_prot_t               max_protection,
                                vm_behavior_t           behavior,
                                vm_inherit_t            inheritance,
                                vm_prot_t               max_protection,
                                vm_behavior_t           behavior,
                                vm_inherit_t            inheritance,
-                               unsigned                wired_count);
+                               unsigned                wired_count,
+                               boolean_t               no_cache,
+                               boolean_t               permanent,
+                               unsigned int            superpage_size,
+                               boolean_t               clear_map_aligned,
+                               boolean_t               is_submap);
 
 
 /*
 
 
 /*
@@ -495,10 +692,10 @@ extern void               vm_map_reference_swap(
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);           \
        if (Map) {                              \
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);           \
        if (Map) {                              \
-               mutex_lock(&Map->s_lock);       \
+               lck_mtx_lock(&Map->s_lock);     \
                Map->res_count++;               \
                Map->ref_count++;               \
                Map->res_count++;               \
                Map->ref_count++;               \
-               mutex_unlock(&Map->s_lock);     \
+               lck_mtx_unlock(&Map->s_lock);   \
        }                                       \
 MACRO_END
 
        }                                       \
 MACRO_END
 
@@ -506,10 +703,10 @@ MACRO_END
 MACRO_BEGIN                                    \
        vm_map_t Lmap = (map);          \
        if (Lmap->res_count == 0) {             \
 MACRO_BEGIN                                    \
        vm_map_t Lmap = (map);          \
        if (Lmap->res_count == 0) {             \
-               mutex_unlock(&Lmap->s_lock);\
+               lck_mtx_unlock(&Lmap->s_lock);\
                vm_map_lock(Lmap);              \
                vm_map_swapin(Lmap);            \
                vm_map_lock(Lmap);              \
                vm_map_swapin(Lmap);            \
-               mutex_lock(&Lmap->s_lock);      \
+               lck_mtx_lock(&Lmap->s_lock);    \
                ++Lmap->res_count;              \
                vm_map_unlock(Lmap);            \
        } else                                  \
                ++Lmap->res_count;              \
                vm_map_unlock(Lmap);            \
        } else                                  \
@@ -520,21 +717,21 @@ MACRO_END
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);           \
        if (--Map->res_count == 0) {    \
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);           \
        if (--Map->res_count == 0) {    \
-               mutex_unlock(&Map->s_lock);     \
+               lck_mtx_unlock(&Map->s_lock);   \
                vm_map_lock(Map);               \
                vm_map_swapout(Map);            \
                vm_map_unlock(Map);             \
                vm_map_lock(Map);               \
                vm_map_swapout(Map);            \
                vm_map_unlock(Map);             \
-               mutex_lock(&Map->s_lock);       \
+               lck_mtx_lock(&Map->s_lock);     \
        }                                       \
 MACRO_END
 
 #define vm_map_reference_swap(map)     \
 MACRO_BEGIN                            \
        vm_map_t Map = (map);           \
        }                                       \
 MACRO_END
 
 #define vm_map_reference_swap(map)     \
 MACRO_BEGIN                            \
        vm_map_t Map = (map);           \
-       mutex_lock(&Map->s_lock);       \
+       lck_mtx_lock(&Map->s_lock);     \
        ++Map->ref_count;               \
        vm_map_res_reference(Map);      \
        ++Map->ref_count;               \
        vm_map_res_reference(Map);      \
-       mutex_unlock(&Map->s_lock);     \
+       lck_mtx_unlock(&Map->s_lock);   \
 MACRO_END
 #endif         /* MACH_ASSERT */
 
 MACRO_END
 #endif         /* MACH_ASSERT */
 
@@ -550,9 +747,9 @@ extern void         vm_map_swapout(
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);                   \
        if (Map) {                              \
 MACRO_BEGIN                                    \
        vm_map_t Map = (map);                   \
        if (Map) {                              \
-               mutex_lock(&Map->s_lock);       \
+               lck_mtx_lock(&Map->s_lock);     \
                Map->ref_count++;               \
                Map->ref_count++;               \
-               mutex_unlock(&Map->s_lock);     \
+               lck_mtx_unlock(&Map->s_lock);   \
        }                                       \
 MACRO_END
 
        }                                       \
 MACRO_END
 
@@ -573,8 +770,8 @@ extern vm_object_t  vm_submap_object;
  */
 #define vm_map_entry_wait(map, interruptible)          \
        ((map)->timestamp++ ,                           \
  */
 #define vm_map_entry_wait(map, interruptible)          \
        ((map)->timestamp++ ,                           \
-        thread_sleep_lock_write((event_t)&(map)->hdr,  \
-                        &(map)->lock, interruptible))
+        lck_rw_sleep(&(map)->lock, LCK_SLEEP_EXCLUSIVE|LCK_SLEEP_PROMOTED_PRI, \
+                                 (event_t)&(map)->hdr, interruptible))
 
 
 #define vm_map_entry_wakeup(map)        \
 
 
 #define vm_map_entry_wakeup(map)        \
@@ -583,21 +780,21 @@ extern vm_object_t        vm_submap_object;
 
 #define        vm_map_ref_fast(map)                    \
        MACRO_BEGIN                                     \
 
 #define        vm_map_ref_fast(map)                    \
        MACRO_BEGIN                                     \
-       mutex_lock(&map->s_lock);                       \
+       lck_mtx_lock(&map->s_lock);                     \
        map->ref_count++;                               \
        vm_map_res_reference(map);                      \
        map->ref_count++;                               \
        vm_map_res_reference(map);                      \
-       mutex_unlock(&map->s_lock);                     \
+       lck_mtx_unlock(&map->s_lock);                   \
        MACRO_END
 
 #define        vm_map_dealloc_fast(map)                \
        MACRO_BEGIN                                     \
        register int c;                         \
                                                        \
        MACRO_END
 
 #define        vm_map_dealloc_fast(map)                \
        MACRO_BEGIN                                     \
        register int c;                         \
                                                        \
-       mutex_lock(&map->s_lock);                       \
+       lck_mtx_lock(&map->s_lock);                     \
        c = --map->ref_count;                   \
        if (c > 0)                                      \
                vm_map_res_deallocate(map);             \
        c = --map->ref_count;                   \
        if (c > 0)                                      \
                vm_map_res_deallocate(map);             \
-       mutex_unlock(&map->s_lock);                     \
+       lck_mtx_unlock(&map->s_lock);                   \
        if (c == 0)                                     \
                vm_map_destroy(map);                    \
        MACRO_END
        if (c == 0)                                     \
                vm_map_destroy(map);                    \
        MACRO_END
@@ -622,6 +819,11 @@ extern kern_return_t       vm_map_copyin_object(
                                vm_object_size_t        size,
                                vm_map_copy_t           *copy_result); /* OUT */
 
                                vm_object_size_t        size,
                                vm_map_copy_t           *copy_result); /* OUT */
 
+extern kern_return_t   vm_map_random_address_for_size(
+                               vm_map_t        map,
+                               vm_map_offset_t *address,
+                               vm_map_size_t   size);
+
 /* Enter a mapping */
 extern kern_return_t   vm_map_enter(
                                vm_map_t                map,
 /* Enter a mapping */
 extern kern_return_t   vm_map_enter(
                                vm_map_t                map,
@@ -636,6 +838,7 @@ extern kern_return_t        vm_map_enter(
                                vm_prot_t               max_protection,
                                vm_inherit_t            inheritance);
 
                                vm_prot_t               max_protection,
                                vm_inherit_t            inheritance);
 
+
 /* XXX should go away - replaced with regular enter of contig object */
 extern  kern_return_t  vm_map_enter_cpm(
                                vm_map_t                map,
 /* XXX should go away - replaced with regular enter of contig object */
 extern  kern_return_t  vm_map_enter_cpm(
                                vm_map_t                map,
@@ -648,7 +851,7 @@ extern kern_return_t vm_map_remap(
                                vm_map_offset_t         *address,
                                vm_map_size_t           size,
                                vm_map_offset_t         mask,
                                vm_map_offset_t         *address,
                                vm_map_size_t           size,
                                vm_map_offset_t         mask,
-                               boolean_t               anywhere,
+                               int                     flags,
                                vm_map_t                src_map,
                                vm_map_offset_t         memory_address,
                                boolean_t               copy,
                                vm_map_t                src_map,
                                vm_map_offset_t         memory_address,
                                boolean_t               copy,
@@ -674,6 +877,7 @@ extern      kern_return_t   vm_map_read_user(
 
 /* Create a new task map using an existing task map as a template. */
 extern vm_map_t                vm_map_fork(
 
 /* Create a new task map using an existing task map as a template. */
 extern vm_map_t                vm_map_fork(
+                               ledger_t                ledger,
                                vm_map_t                old_map);
 
 /* Change inheritance */
                                vm_map_t                old_map);
 
 /* Change inheritance */
@@ -727,12 +931,20 @@ extern kern_return_t vm_map_region_recurse_64(
                                vm_region_submap_info_64_t info,
                                mach_msg_type_number_t  *count);
 
                                vm_region_submap_info_64_t info,
                                mach_msg_type_number_t  *count);
 
-extern kern_return_t vm_map_page_info(
+extern kern_return_t vm_map_page_query_internal(
                                vm_map_t                map,
                                vm_map_offset_t         offset,
                                int                     *disposition,
                                int                     *ref_count);
 
                                vm_map_t                map,
                                vm_map_offset_t         offset,
                                int                     *disposition,
                                int                     *ref_count);
 
+extern kern_return_t vm_map_query_volatile(
+       vm_map_t        map,
+       mach_vm_size_t  *volatile_virtual_size_p,
+       mach_vm_size_t  *volatile_resident_size_p,
+       mach_vm_size_t  *volatile_compressed_size_p,
+       mach_vm_size_t  *volatile_pmap_size_p,
+       mach_vm_size_t  *volatile_compressed_pmap_size_p);
+
 extern kern_return_t   vm_map_submap(
                                vm_map_t                map,
                                vm_map_offset_t         start,
 extern kern_return_t   vm_map_submap(
                                vm_map_t                map,
                                vm_map_offset_t         start,
@@ -757,6 +969,37 @@ extern vm_object_t convert_port_entry_to_object(
        ipc_port_t      port);
 
 
        ipc_port_t      port);
 
 
+extern kern_return_t vm_map_set_cache_attr(
+        vm_map_t        map,
+        vm_map_offset_t va);
+
+
+/* definitions related to overriding the NX behavior */
+
+#define VM_ABI_32      0x1
+#define VM_ABI_64      0x2
+
+extern int override_nx(vm_map_t map, uint32_t user_tag);
+
+extern int vm_map_purge(vm_map_t map);
+
+
+/* kext exported versions */
+
+extern kern_return_t vm_map_wire_external(
+       register vm_map_t       map,
+       register vm_map_offset_t        start,
+       register vm_map_offset_t        end,
+       register vm_prot_t      caller_prot,
+       boolean_t               user_wire);
+
+extern kern_return_t vm_map_wire_and_extract_external(
+       vm_map_t        map,
+       vm_map_offset_t start,
+       vm_prot_t       caller_prot,
+       boolean_t       user_wire,
+       ppnum_t         *physpage_p);
+
 #endif /* MACH_KERNEL_PRIVATE */
 
 __BEGIN_DECLS
 #endif /* MACH_KERNEL_PRIVATE */
 
 __BEGIN_DECLS
@@ -768,9 +1011,13 @@ extern vm_map_t           vm_map_create(
                                vm_map_offset_t         max_off,
                                boolean_t               pageable);
 
                                vm_map_offset_t         max_off,
                                boolean_t               pageable);
 
+extern void            vm_map_disable_hole_optimization(vm_map_t map);
+
 /* Get rid of a map */
 extern void            vm_map_destroy(
 /* Get rid of a map */
 extern void            vm_map_destroy(
-                               vm_map_t                map);
+                               vm_map_t                map,
+                               int                     flags);
+
 /* Lose a reference */
 extern void            vm_map_deallocate(
                                vm_map_t                map);
 /* Lose a reference */
 extern void            vm_map_deallocate(
                                vm_map_t                map);
@@ -801,6 +1048,13 @@ extern kern_return_t      vm_map_wire(
                                vm_prot_t               access_type,
                                boolean_t               user_wire);
 
                                vm_prot_t               access_type,
                                boolean_t               user_wire);
 
+extern kern_return_t   vm_map_wire_and_extract(
+                               vm_map_t                map,
+                               vm_map_offset_t         start,
+                               vm_prot_t               access_type,
+                               boolean_t               user_wire,
+                               ppnum_t                 *physpage_p);
+
 /* unwire a region */
 extern kern_return_t   vm_map_unwire(
                                vm_map_t                map,
 /* unwire a region */
 extern kern_return_t   vm_map_unwire(
                                vm_map_t                map,
@@ -808,6 +1062,48 @@ extern kern_return_t      vm_map_unwire(
                                vm_map_offset_t         end,
                                boolean_t               user_wire);
 
                                vm_map_offset_t         end,
                                boolean_t               user_wire);
 
+/* Enter a mapping of a memory object */
+extern kern_return_t   vm_map_enter_mem_object(
+                               vm_map_t                map,
+                               vm_map_offset_t         *address,
+                               vm_map_size_t           size,
+                               vm_map_offset_t         mask,
+                               int                     flags,
+                               ipc_port_t              port,
+                               vm_object_offset_t      offset,
+                               boolean_t               needs_copy,
+                               vm_prot_t               cur_protection,
+                               vm_prot_t               max_protection,
+                               vm_inherit_t            inheritance);
+
+/* Enter a mapping of a memory object */
+extern kern_return_t   vm_map_enter_mem_object_prefault(
+                               vm_map_t                map,
+                               vm_map_offset_t         *address,
+                               vm_map_size_t           size,
+                               vm_map_offset_t         mask,
+                               int                     flags,
+                               ipc_port_t              port,
+                               vm_object_offset_t      offset,
+                               vm_prot_t               cur_protection,
+                               vm_prot_t               max_protection,
+                               upl_page_list_ptr_t     page_list,
+                               unsigned int            page_list_count);
+
+/* Enter a mapping of a memory object */
+extern kern_return_t   vm_map_enter_mem_object_control(
+                               vm_map_t                map,
+                               vm_map_offset_t         *address,
+                               vm_map_size_t           size,
+                               vm_map_offset_t         mask,
+                               int                     flags,
+                               memory_object_control_t control,
+                               vm_object_offset_t      offset,
+                               boolean_t               needs_copy,
+                               vm_prot_t               cur_protection,
+                               vm_prot_t               max_protection,
+                               vm_inherit_t            inheritance);
+
 /* Deallocate a region */
 extern kern_return_t   vm_map_remove(
                                vm_map_t                map,
 /* Deallocate a region */
 extern kern_return_t   vm_map_remove(
                                vm_map_t                map,
@@ -824,7 +1120,13 @@ extern kern_return_t      vm_map_copy_overwrite(
                                vm_map_t                dst_map,
                                vm_map_address_t        dst_addr,
                                vm_map_copy_t           copy,
                                vm_map_t                dst_map,
                                vm_map_address_t        dst_addr,
                                vm_map_copy_t           copy,
-                               int                     interruptible);
+                               boolean_t               interruptible);
+
+/* returns TRUE if size of vm_map_copy == size parameter FALSE otherwise */
+extern boolean_t       vm_map_copy_validate_size(
+                               vm_map_t                dst_map,
+                               vm_map_copy_t           copy,
+                               vm_map_size_t           size);
 
 /* Place a copy into a map */
 extern kern_return_t   vm_map_copyout(
 
 /* Place a copy into a map */
 extern kern_return_t   vm_map_copyout(
@@ -832,6 +1134,22 @@ extern kern_return_t      vm_map_copyout(
                                vm_map_address_t        *dst_addr,      /* OUT */
                                vm_map_copy_t           copy);
 
                                vm_map_address_t        *dst_addr,      /* OUT */
                                vm_map_copy_t           copy);
 
+extern kern_return_t   vm_map_copyout_internal(
+       vm_map_t                dst_map,
+       vm_map_address_t        *dst_addr,      /* OUT */
+       vm_map_copy_t           copy,
+       boolean_t               consume_on_success,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance);
+
+extern kern_return_t   vm_map_copyin(
+                               vm_map_t                        src_map,
+                               vm_map_address_t        src_addr,
+                               vm_map_size_t           len,
+                               boolean_t                       src_destroy,
+                               vm_map_copy_t           *copy_result);  /* OUT */
+
 extern kern_return_t   vm_map_copyin_common(
                                vm_map_t                src_map,
                                vm_map_address_t        src_addr,
 extern kern_return_t   vm_map_copyin_common(
                                vm_map_t                src_map,
                                vm_map_address_t        src_addr,
@@ -841,30 +1159,111 @@ extern kern_return_t    vm_map_copyin_common(
                                vm_map_copy_t           *copy_result,   /* OUT */
                                boolean_t               use_maxprot);
 
                                vm_map_copy_t           *copy_result,   /* OUT */
                                boolean_t               use_maxprot);
 
+#define VM_MAP_COPYIN_SRC_DESTROY      0x00000001
+#define VM_MAP_COPYIN_USE_MAXPROT      0x00000002
+#define VM_MAP_COPYIN_ENTRY_LIST       0x00000004
+#define VM_MAP_COPYIN_ALL_FLAGS                0x00000007
+extern kern_return_t   vm_map_copyin_internal(
+                               vm_map_t                src_map,
+                               vm_map_address_t        src_addr,
+                               vm_map_size_t           len,
+                               int                     flags,
+                               vm_map_copy_t           *copy_result); /* OUT */
+
+extern kern_return_t   vm_map_copy_extract(
+       vm_map_t                src_map,
+       vm_map_address_t        src_addr,
+       vm_map_size_t           len,
+       vm_map_copy_t           *copy_result,   /* OUT */
+       vm_prot_t               *cur_prot,      /* OUT */
+       vm_prot_t               *max_prot);
+
+
 extern void            vm_map_disable_NX(
                                vm_map_t                map);
 
 extern void            vm_map_disable_NX(
                                vm_map_t                map);
 
+extern void            vm_map_disallow_data_exec(
+                               vm_map_t                map);
+
 extern void            vm_map_set_64bit(
                                vm_map_t                map);
 
 extern void            vm_map_set_32bit(
                                vm_map_t                map);
 
 extern void            vm_map_set_64bit(
                                vm_map_t                map);
 
 extern void            vm_map_set_32bit(
                                vm_map_t                map);
 
-extern boolean_t       vm_map_has_4GB_pagezero(
-                               vm_map_t                map);
+extern boolean_t       vm_map_has_hard_pagezero(
+                               vm_map_t                map,
+                               vm_map_offset_t         pagezero_size);
 
 
-extern void            vm_map_set_4GB_pagezero(
+extern boolean_t       vm_map_is_64bit(
                                vm_map_t                map);
 
                                vm_map_t                map);
 
-extern void            vm_map_clear_4GB_pagezero(
-                               vm_map_t                map);
+
+extern kern_return_t   vm_map_raise_max_offset(
+       vm_map_t        map,
+       vm_map_offset_t new_max_offset);
 
 extern kern_return_t   vm_map_raise_min_offset(
        vm_map_t        map,
        vm_map_offset_t new_min_offset);
 
 extern vm_map_offset_t vm_compute_max_offset(
 
 extern kern_return_t   vm_map_raise_min_offset(
        vm_map_t        map,
        vm_map_offset_t new_min_offset);
 
 extern vm_map_offset_t vm_compute_max_offset(
-                               unsigned                is64);
+                               boolean_t               is64);
+
+extern uint64_t        vm_map_get_max_aslr_slide_pages(
+                               vm_map_t map);
+       
+extern void            vm_map_set_user_wire_limit(
+                               vm_map_t                map,
+                               vm_size_t               limit);
+
+extern void vm_map_switch_protect(
+                               vm_map_t                map, 
+                               boolean_t               val);
+
+extern void vm_map_iokit_mapped_region(
+                               vm_map_t                map,
+                               vm_size_t               bytes);
+
+extern void vm_map_iokit_unmapped_region(
+                               vm_map_t                map,
+                               vm_size_t               bytes);
+
+
+extern boolean_t first_free_is_valid(vm_map_t);
+
+extern int             vm_map_page_shift(
+                               vm_map_t                map);
+
+extern vm_map_offset_t vm_map_page_mask(
+                               vm_map_t                map);
+
+extern int             vm_map_page_size(
+                               vm_map_t                map);
+
+extern vm_map_offset_t vm_map_round_page_mask(
+                               vm_map_offset_t         offset,
+                               vm_map_offset_t         mask);
+
+extern vm_map_offset_t vm_map_trunc_page_mask(
+                               vm_map_offset_t         offset,
+                               vm_map_offset_t         mask);
+
+extern boolean_t       vm_map_page_aligned(
+                               vm_map_offset_t         offset,
+                               vm_map_offset_t         mask);
+
+#ifdef XNU_KERNEL_PRIVATE
+extern kern_return_t vm_map_page_info(
+       vm_map_t                map,
+       vm_map_offset_t         offset,
+       vm_page_info_flavor_t   flavor,
+       vm_page_info_t          info,
+       mach_msg_type_number_t  *count);
+#endif /* XNU_KERNEL_PRIVATE */
+
+
+#ifdef MACH_KERNEL_PRIVATE
 
 /*
  *     Macros to invoke vm_map_copyin_common.  vm_map_copyin is the
 
 /*
  *     Macros to invoke vm_map_copyin_common.  vm_map_copyin is the
@@ -884,11 +1283,29 @@ extern vm_map_offset_t   vm_compute_max_offset(
                vm_map_copyin_common(src_map, src_addr, len, src_destroy, \
                                        FALSE, copy_result, TRUE)
 
                vm_map_copyin_common(src_map, src_addr, len, src_destroy, \
                                        FALSE, copy_result, TRUE)
 
+
+/*
+ * Internal macros for rounding and truncation of vm_map offsets and sizes
+ */
+#define VM_MAP_ROUND_PAGE(x,pgmask) (((vm_map_offset_t)(x) + (pgmask)) & ~((signed)(pgmask)))
+#define VM_MAP_TRUNC_PAGE(x,pgmask) ((vm_map_offset_t)(x) & ~((signed)(pgmask)))
+
 /*
  * Macros for rounding and truncation of vm_map offsets and sizes
  */
 /*
  * Macros for rounding and truncation of vm_map offsets and sizes
  */
-#define vm_map_round_page(x) (((vm_map_offset_t)(x) + PAGE_MASK) & ~((signed)PAGE_MASK))
-#define vm_map_trunc_page(x) ((vm_map_offset_t)(x) & ~((signed)PAGE_MASK))     
+#define VM_MAP_PAGE_SHIFT(map) ((map) ? (map)->hdr.page_shift : PAGE_SHIFT)
+#define VM_MAP_PAGE_SIZE(map) (1 << VM_MAP_PAGE_SHIFT((map)))
+#define VM_MAP_PAGE_MASK(map) (VM_MAP_PAGE_SIZE((map)) - 1)
+#define VM_MAP_PAGE_ALIGNED(x,pgmask) (((x) & (pgmask)) == 0)
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+extern kern_return_t vm_map_set_page_shift(vm_map_t map, int pageshift);
+#endif /* XNU_KERNEL_PRIVATE */
+
+#define vm_map_round_page(x,pgmask) (((vm_map_offset_t)(x) + (pgmask)) & ~((signed)(pgmask)))
+#define vm_map_trunc_page(x,pgmask) ((vm_map_offset_t)(x) & ~((signed)(pgmask)))
 
 /*
  * Flags for vm_map_remove() and vm_map_delete()
 
 /*
  * Flags for vm_map_remove() and vm_map_delete()
@@ -898,30 +1315,65 @@ extern vm_map_offset_t   vm_compute_max_offset(
 #define        VM_MAP_REMOVE_INTERRUPTIBLE     0x2
 #define        VM_MAP_REMOVE_WAIT_FOR_KWIRE    0x4
 #define VM_MAP_REMOVE_SAVE_ENTRIES     0x8
 #define        VM_MAP_REMOVE_INTERRUPTIBLE     0x2
 #define        VM_MAP_REMOVE_WAIT_FOR_KWIRE    0x4
 #define VM_MAP_REMOVE_SAVE_ENTRIES     0x8
-
-/* Support for shared regions */
-extern kern_return_t vm_region_clone(
-                               ipc_port_t              src_region,
-                               ipc_port_t              dst_region);
-
-extern kern_return_t vm_map_region_replace(
-                               vm_map_t                target_map,
-                               ipc_port_t              old_region,
-                               ipc_port_t              new_region,
-                               vm_map_offset_t         start,  
-                               vm_map_offset_t         end);
+#define VM_MAP_REMOVE_NO_PMAP_CLEANUP  0x10
+#define VM_MAP_REMOVE_NO_MAP_ALIGN     0x20
+#define VM_MAP_REMOVE_NO_UNNESTING     0x40
 
 /* Support for UPLs from vm_maps */
 
 extern kern_return_t vm_map_get_upl(
                                vm_map_t                target_map,
                                vm_map_offset_t         map_offset,
 
 /* Support for UPLs from vm_maps */
 
 extern kern_return_t vm_map_get_upl(
                                vm_map_t                target_map,
                                vm_map_offset_t         map_offset,
-                               vm_size_t               *size,
+                               upl_size_t              *size,
                                upl_t                   *upl,
                                upl_page_info_array_t   page_info,
                                upl_t                   *upl,
                                upl_page_info_array_t   page_info,
-                               mach_msg_type_number_t  *page_infoCnt,
-                               integer_t               *flags,
-                               integer_t               force_data_sync);
+                               unsigned int            *page_infoCnt,
+                               upl_control_flags_t     *flags,
+                               int                     force_data_sync);
+
+extern void
+vm_map_sizes(vm_map_t map,
+               vm_map_size_t * psize,
+               vm_map_size_t * pfree,
+               vm_map_size_t * plargest_free);
+
+#if CONFIG_DYNAMIC_CODE_SIGNING
+extern kern_return_t vm_map_sign(vm_map_t map, 
+                                vm_map_offset_t start, 
+                                vm_map_offset_t end);
+#endif
+
+extern kern_return_t vm_map_partial_reap(
+               vm_map_t map,
+               unsigned int *reclaimed_resident,
+               unsigned int *reclaimed_compressed);
+
+#if CONFIG_FREEZE
+void   vm_map_freeze_thaw_init(void);
+void   vm_map_freeze_thaw(void);
+void   vm_map_demand_fault(void);
+
+extern kern_return_t vm_map_freeze_walk(
+               vm_map_t map,
+               unsigned int *purgeable_count,
+               unsigned int *wired_count,
+               unsigned int *clean_count,
+               unsigned int *dirty_count,
+               unsigned int dirty_budget,
+               boolean_t *has_shared);
+
+extern kern_return_t vm_map_freeze(
+               vm_map_t map,
+               unsigned int *purgeable_count,
+               unsigned int *wired_count,
+               unsigned int *clean_count,
+               unsigned int *dirty_count,
+               unsigned int dirty_budget,
+               boolean_t *has_shared);
+                
+extern kern_return_t vm_map_thaw(
+                vm_map_t map);
+#endif
 
 __END_DECLS
 
 
 __END_DECLS
 
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