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[apple/xnu.git] / osfmk / vm / vm_user.c
diff --git a/osfmk/vm/vm_user.c b/osfmk/vm/vm_user.c
index 2f9bdc101c6699fb9a829fefc355f6cfbe93efc7..92df956137d494c0269c3522a46d87a4f26d0a27 100644 (file)
--- a/osfmk/vm/vm_user.c
+++ b/osfmk/vm/vm_user.c
@@ -2,7 +2,7 @@
  * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- * 
+ *
  * 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
  * 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
@@ -11,10 +11,10 @@
  * 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.
  * 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.
- * 
+ *
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 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,
  * 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,
@@ -22,34 +22,34 @@
  * 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.
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
-/* 
+/*
  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  * All Rights Reserved.
  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  * All Rights Reserved.
- * 
+ *
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
- * 
+ *
  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
+ *
  * Carnegie Mellon requests users of this software to return to
  * Carnegie Mellon requests users of this software to return to
- * 
+ *
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
- * 
+ *
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
@@ -58,7 +58,7 @@
 /*
  *     File:   vm/vm_user.c
  *     Author: Avadis Tevanian, Jr., Michael Wayne Young
 /*
  *     File:   vm/vm_user.c
  *     Author: Avadis Tevanian, Jr., Michael Wayne Young
- * 
+ *
  *     User-exported virtual memory functions.
  */
 
  *     User-exported virtual memory functions.
  */
 
@@ -90,9 +90,9 @@
 #include <vm_cpm.h>
 #include <mach/boolean.h>
 #include <mach/kern_return.h>
 #include <vm_cpm.h>
 #include <mach/boolean.h>
 #include <mach/kern_return.h>
-#include <mach/mach_types.h>   /* to get vm_address_t */
+#include <mach/mach_types.h>    /* to get vm_address_t */
 #include <mach/memory_object.h>
 #include <mach/memory_object.h>
-#include <mach/std_types.h>    /* to get pointer_t */
+#include <mach/std_types.h>     /* to get pointer_t */
 #include <mach/upl.h>
 #include <mach/vm_attributes.h>
 #include <mach/vm_param.h>
 #include <mach/upl.h>
 #include <mach/vm_attributes.h>
 #include <mach/vm_param.h>
@@ -102,6 +102,7 @@
 
 #include <mach/host_priv_server.h>
 #include <mach/mach_vm_server.h>
 
 #include <mach/host_priv_server.h>
 #include <mach/mach_vm_server.h>
+#include <mach/memory_entry_server.h>
 #include <mach/vm_map_server.h>
 
 #include <kern/host.h>
 #include <mach/vm_map_server.h>
 
 #include <kern/host.h>
@@ -120,11 +121,13 @@
 
 #include <san/kasan.h>
 
 
 #include <san/kasan.h>
 
+#include <libkern/OSDebug.h>
+
 vm_size_t        upl_offset_to_pagelist = 0;
 
 vm_size_t        upl_offset_to_pagelist = 0;
 
-#if    VM_CPM
+#if     VM_CPM
 #include <vm/cpm.h>
 #include <vm/cpm.h>
-#endif /* VM_CPM */
+#endif  /* VM_CPM */
 
 /*
  *     mach_vm_allocate allocates "zero fill" memory in the specfied
 
 /*
  *     mach_vm_allocate allocates "zero fill" memory in the specfied
@@ -132,39 +135,41 @@ vm_size_t        upl_offset_to_pagelist = 0;
  */
 kern_return_t
 mach_vm_allocate_external(
  */
 kern_return_t
 mach_vm_allocate_external(
-       vm_map_t                map,
-       mach_vm_offset_t        *addr,
-       mach_vm_size_t  size,
-       int                     flags)
+       vm_map_t                map,
+       mach_vm_offset_t        *addr,
+       mach_vm_size_t  size,
+       int                     flags)
 {
 {
-    vm_tag_t tag;
+       vm_tag_t tag;
 
 
-    VM_GET_FLAGS_ALIAS(flags, tag);
-    return (mach_vm_allocate_kernel(map, addr, size, flags, tag));
+       VM_GET_FLAGS_ALIAS(flags, tag);
+       return mach_vm_allocate_kernel(map, addr, size, flags, tag);
 }
 
 kern_return_t
 mach_vm_allocate_kernel(
 }
 
 kern_return_t
 mach_vm_allocate_kernel(
-       vm_map_t                map,
-       mach_vm_offset_t        *addr,
-       mach_vm_size_t  size,
-       int                     flags,
+       vm_map_t                map,
+       mach_vm_offset_t        *addr,
+       mach_vm_size_t  size,
+       int                     flags,
        vm_tag_t    tag)
 {
        vm_map_offset_t map_addr;
        vm_tag_t    tag)
 {
        vm_map_offset_t map_addr;
-       vm_map_size_t   map_size;
-       kern_return_t   result;
-       boolean_t       anywhere;
+       vm_map_size_t   map_size;
+       kern_return_t   result;
+       boolean_t       anywhere;
 
        /* filter out any kernel-only flags */
 
        /* filter out any kernel-only flags */
-       if (flags & ~VM_FLAGS_USER_ALLOCATE)
+       if (flags & ~VM_FLAGS_USER_ALLOCATE) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
        if (size == 0) {
                *addr = 0;
        if (size == 0) {
                *addr = 0;
-               return(KERN_SUCCESS);
+               return KERN_SUCCESS;
        }
 
        anywhere = ((VM_FLAGS_ANYWHERE & flags) != 0);
        }
 
        anywhere = ((VM_FLAGS_ANYWHERE & flags) != 0);
@@ -180,76 +185,80 @@ mach_vm_allocate_kernel(
                 * memory would tend to confuse those applications.
                 */
                map_addr = vm_map_min(map);
                 * memory would tend to confuse those applications.
                 */
                map_addr = vm_map_min(map);
-               if (map_addr == 0)
+               if (map_addr == 0) {
                        map_addr += VM_MAP_PAGE_SIZE(map);
                        map_addr += VM_MAP_PAGE_SIZE(map);
-       } else
+               }
+       } else {
                map_addr = vm_map_trunc_page(*addr,
                map_addr = vm_map_trunc_page(*addr,
-                                            VM_MAP_PAGE_MASK(map));
+                   VM_MAP_PAGE_MASK(map));
+       }
        map_size = vm_map_round_page(size,
        map_size = vm_map_round_page(size,
-                                    VM_MAP_PAGE_MASK(map));
+           VM_MAP_PAGE_MASK(map));
        if (map_size == 0) {
        if (map_size == 0) {
-         return(KERN_INVALID_ARGUMENT);
+               return KERN_INVALID_ARGUMENT;
        }
 
        result = vm_map_enter(
        }
 
        result = vm_map_enter(
-                       map,
-                       &map_addr,
-                       map_size,
-                       (vm_map_offset_t)0,
-                       flags,
-                       VM_MAP_KERNEL_FLAGS_NONE,
-                       tag,
-                       VM_OBJECT_NULL,
-                       (vm_object_offset_t)0,
-                       FALSE,
-                       VM_PROT_DEFAULT,
-                       VM_PROT_ALL,
-                       VM_INHERIT_DEFAULT);
+               map,
+               &map_addr,
+               map_size,
+               (vm_map_offset_t)0,
+               flags,
+               VM_MAP_KERNEL_FLAGS_NONE,
+               tag,
+               VM_OBJECT_NULL,
+               (vm_object_offset_t)0,
+               FALSE,
+               VM_PROT_DEFAULT,
+               VM_PROT_ALL,
+               VM_INHERIT_DEFAULT);
 
        *addr = map_addr;
 
        *addr = map_addr;
-       return(result);
+       return result;
 }
 
 /*
 }
 
 /*
- *     vm_allocate 
+ *     vm_allocate
  *     Legacy routine that allocates "zero fill" memory in the specfied
  *     map (which is limited to the same size as the kernel).
  */
 kern_return_t
 vm_allocate_external(
  *     Legacy routine that allocates "zero fill" memory in the specfied
  *     map (which is limited to the same size as the kernel).
  */
 kern_return_t
 vm_allocate_external(
-       vm_map_t        map,
-       vm_offset_t     *addr,
-       vm_size_t       size,
-       int             flags)
+       vm_map_t        map,
+       vm_offset_t     *addr,
+       vm_size_t       size,
+       int             flags)
 {
        vm_tag_t tag;
 
 {
        vm_tag_t tag;
 
-    VM_GET_FLAGS_ALIAS(flags, tag);
-    return (vm_allocate_kernel(map, addr, size, flags, tag));
+       VM_GET_FLAGS_ALIAS(flags, tag);
+       return vm_allocate_kernel(map, addr, size, flags, tag);
 }
 
 kern_return_t
 vm_allocate_kernel(
 }
 
 kern_return_t
 vm_allocate_kernel(
-       vm_map_t        map,
-       vm_offset_t     *addr,
-       vm_size_t       size,
+       vm_map_t        map,
+       vm_offset_t     *addr,
+       vm_size_t       size,
        int         flags,
        vm_tag_t    tag)
 {
        vm_map_offset_t map_addr;
        int         flags,
        vm_tag_t    tag)
 {
        vm_map_offset_t map_addr;
-       vm_map_size_t   map_size;
-       kern_return_t   result;
-       boolean_t       anywhere;
+       vm_map_size_t   map_size;
+       kern_return_t   result;
+       boolean_t       anywhere;
 
        /* filter out any kernel-only flags */
 
        /* filter out any kernel-only flags */
-       if (flags & ~VM_FLAGS_USER_ALLOCATE)
+       if (flags & ~VM_FLAGS_USER_ALLOCATE) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
        if (size == 0) {
                *addr = 0;
        if (size == 0) {
                *addr = 0;
-               return(KERN_SUCCESS);
+               return KERN_SUCCESS;
        }
 
        anywhere = ((VM_FLAGS_ANYWHERE & flags) != 0);
        }
 
        anywhere = ((VM_FLAGS_ANYWHERE & flags) != 0);
@@ -265,31 +274,33 @@ vm_allocate_kernel(
                 * memory would tend to confuse those applications.
                 */
                map_addr = vm_map_min(map);
                 * memory would tend to confuse those applications.
                 */
                map_addr = vm_map_min(map);
-               if (map_addr == 0)
+               if (map_addr == 0) {
                        map_addr += VM_MAP_PAGE_SIZE(map);
                        map_addr += VM_MAP_PAGE_SIZE(map);
-       } else
+               }
+       } else {
                map_addr = vm_map_trunc_page(*addr,
                map_addr = vm_map_trunc_page(*addr,
-                                            VM_MAP_PAGE_MASK(map));
+                   VM_MAP_PAGE_MASK(map));
+       }
        map_size = vm_map_round_page(size,
        map_size = vm_map_round_page(size,
-                                    VM_MAP_PAGE_MASK(map));
+           VM_MAP_PAGE_MASK(map));
        if (map_size == 0) {
        if (map_size == 0) {
-         return(KERN_INVALID_ARGUMENT);
+               return KERN_INVALID_ARGUMENT;
        }
 
        result = vm_map_enter(
        }
 
        result = vm_map_enter(
-                       map,
-                       &map_addr,
-                       map_size,
-                       (vm_map_offset_t)0,
-                       flags,
-                       VM_MAP_KERNEL_FLAGS_NONE,
-                       tag,
-                       VM_OBJECT_NULL,
-                       (vm_object_offset_t)0,
-                       FALSE,
-                       VM_PROT_DEFAULT,
-                       VM_PROT_ALL,
-                       VM_INHERIT_DEFAULT);
+               map,
+               &map_addr,
+               map_size,
+               (vm_map_offset_t)0,
+               flags,
+               VM_MAP_KERNEL_FLAGS_NONE,
+               tag,
+               VM_OBJECT_NULL,
+               (vm_object_offset_t)0,
+               FALSE,
+               VM_PROT_DEFAULT,
+               VM_PROT_ALL,
+               VM_INHERIT_DEFAULT);
 
 #if KASAN
        if (result == KERN_SUCCESS && map->pmap == kernel_pmap) {
 
 #if KASAN
        if (result == KERN_SUCCESS && map->pmap == kernel_pmap) {
@@ -298,7 +309,7 @@ vm_allocate_kernel(
 #endif
 
        *addr = CAST_DOWN(vm_offset_t, map_addr);
 #endif
 
        *addr = CAST_DOWN(vm_offset_t, map_addr);
-       return(result);
+       return result;
 }
 
 /*
 }
 
 /*
@@ -308,22 +319,24 @@ vm_allocate_kernel(
  */
 kern_return_t
 mach_vm_deallocate(
  */
 kern_return_t
 mach_vm_deallocate(
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t  size)
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t  size)
 {
 {
-       if ((map == VM_MAP_NULL) || (start + size < start))
-               return(KERN_INVALID_ARGUMENT);
-
-       if (size == (mach_vm_offset_t) 0)
-               return(KERN_SUCCESS);
-
-       return(vm_map_remove(map,
-                            vm_map_trunc_page(start,
-                                              VM_MAP_PAGE_MASK(map)),
-                            vm_map_round_page(start+size,
-                                              VM_MAP_PAGE_MASK(map)),
-                            VM_MAP_NO_FLAGS));
+       if ((map == VM_MAP_NULL) || (start + size < start)) {
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       if (size == (mach_vm_offset_t) 0) {
+               return KERN_SUCCESS;
+       }
+
+       return vm_map_remove(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  VM_MAP_REMOVE_NO_FLAGS);
 }
 
 /*
 }
 
 /*
@@ -334,22 +347,24 @@ mach_vm_deallocate(
  */
 kern_return_t
 vm_deallocate(
  */
 kern_return_t
 vm_deallocate(
-       vm_map_t                map,
-       vm_offset_t             start,
-       vm_size_t               size)
+       vm_map_t                map,
+       vm_offset_t             start,
+       vm_size_t               size)
 {
 {
-       if ((map == VM_MAP_NULL) || (start + size < start))
-               return(KERN_INVALID_ARGUMENT);
-
-       if (size == (vm_offset_t) 0)
-               return(KERN_SUCCESS);
-
-       return(vm_map_remove(map,
-                            vm_map_trunc_page(start,
-                                              VM_MAP_PAGE_MASK(map)),
-                            vm_map_round_page(start+size,
-                                              VM_MAP_PAGE_MASK(map)),
-                            VM_MAP_NO_FLAGS));
+       if ((map == VM_MAP_NULL) || (start + size < start)) {
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       if (size == (vm_offset_t) 0) {
+               return KERN_SUCCESS;
+       }
+
+       return vm_map_remove(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  VM_MAP_REMOVE_NO_FLAGS);
 }
 
 /*
 }
 
 /*
@@ -359,24 +374,26 @@ vm_deallocate(
  */
 kern_return_t
 mach_vm_inherit(
  */
 kern_return_t
 mach_vm_inherit(
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t  size,
-       vm_inherit_t            new_inheritance)
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t  size,
+       vm_inherit_t            new_inheritance)
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
-           (new_inheritance > VM_INHERIT_LAST_VALID))
-                return(KERN_INVALID_ARGUMENT);
+           (new_inheritance > VM_INHERIT_LAST_VALID)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
 
-       return(vm_map_inherit(map,
-                             vm_map_trunc_page(start,
-                                               VM_MAP_PAGE_MASK(map)),
-                             vm_map_round_page(start+size,
-                                               VM_MAP_PAGE_MASK(map)),
-                             new_inheritance));
+       return vm_map_inherit(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  new_inheritance);
 }
 
 /*
 }
 
 /*
@@ -386,24 +403,26 @@ mach_vm_inherit(
  */
 kern_return_t
 vm_inherit(
  */
 kern_return_t
 vm_inherit(
-       vm_map_t                map,
-       vm_offset_t             start,
-       vm_size_t               size,
-       vm_inherit_t            new_inheritance)
+       vm_map_t                map,
+       vm_offset_t             start,
+       vm_size_t               size,
+       vm_inherit_t            new_inheritance)
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
-           (new_inheritance > VM_INHERIT_LAST_VALID))
-                return(KERN_INVALID_ARGUMENT);
+           (new_inheritance > VM_INHERIT_LAST_VALID)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
 
-       return(vm_map_inherit(map,
-                             vm_map_trunc_page(start,
-                                               VM_MAP_PAGE_MASK(map)),
-                             vm_map_round_page(start+size,
-                                               VM_MAP_PAGE_MASK(map)),
-                             new_inheritance));
+       return vm_map_inherit(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  new_inheritance);
 }
 
 /*
 }
 
 /*
@@ -414,26 +433,28 @@ vm_inherit(
 
 kern_return_t
 mach_vm_protect(
 
 kern_return_t
 mach_vm_protect(
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t  size,
-       boolean_t               set_maximum,
-       vm_prot_t               new_protection)
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t  size,
+       boolean_t               set_maximum,
+       vm_prot_t               new_protection)
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
-           (new_protection & ~(VM_PROT_ALL | VM_PROT_COPY)))
-               return(KERN_INVALID_ARGUMENT);
+           (new_protection & ~(VM_PROT_ALL | VM_PROT_COPY))) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
 
-       return(vm_map_protect(map,
-                             vm_map_trunc_page(start,
-                                               VM_MAP_PAGE_MASK(map)),
-                             vm_map_round_page(start+size,
-                                               VM_MAP_PAGE_MASK(map)),
-                             new_protection,
-                             set_maximum));
+       return vm_map_protect(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  new_protection,
+                  set_maximum);
 }
 
 /*
 }
 
 /*
@@ -445,26 +466,28 @@ mach_vm_protect(
 
 kern_return_t
 vm_protect(
 
 kern_return_t
 vm_protect(
-       vm_map_t                map,
-       vm_offset_t             start,
-       vm_size_t               size,
-       boolean_t               set_maximum,
-       vm_prot_t               new_protection)
+       vm_map_t                map,
+       vm_offset_t             start,
+       vm_size_t               size,
+       boolean_t               set_maximum,
+       vm_prot_t               new_protection)
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
 {
        if ((map == VM_MAP_NULL) || (start + size < start) ||
-           (new_protection & ~(VM_PROT_ALL | VM_PROT_COPY)))
-               return(KERN_INVALID_ARGUMENT);
+           (new_protection & ~(VM_PROT_ALL | VM_PROT_COPY))) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
 
-       return(vm_map_protect(map,
-                             vm_map_trunc_page(start,
-                                               VM_MAP_PAGE_MASK(map)),
-                             vm_map_round_page(start+size,
-                                               VM_MAP_PAGE_MASK(map)),
-                             new_protection,
-                             set_maximum));
+       return vm_map_protect(map,
+                  vm_map_trunc_page(start,
+                  VM_MAP_PAGE_MASK(map)),
+                  vm_map_round_page(start + size,
+                  VM_MAP_PAGE_MASK(map)),
+                  new_protection,
+                  set_maximum);
 }
 
 /*
 }
 
 /*
@@ -474,24 +497,26 @@ vm_protect(
  */
 kern_return_t
 mach_vm_machine_attribute(
  */
 kern_return_t
 mach_vm_machine_attribute(
-       vm_map_t                        map,
-       mach_vm_address_t               addr,
-       mach_vm_size_t          size,
-       vm_machine_attribute_t  attribute,
-       vm_machine_attribute_val_t* value)              /* IN/OUT */
+       vm_map_t                        map,
+       mach_vm_address_t               addr,
+       mach_vm_size_t          size,
+       vm_machine_attribute_t  attribute,
+       vm_machine_attribute_val_t* value)              /* IN/OUT */
 {
 {
-       if ((map == VM_MAP_NULL) || (addr + size < addr))
-               return(KERN_INVALID_ARGUMENT);
+       if ((map == VM_MAP_NULL) || (addr + size < addr)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
        return vm_map_machine_attribute(
 
        return vm_map_machine_attribute(
-               map, 
+               map,
                vm_map_trunc_page(addr,
                vm_map_trunc_page(addr,
-                                 VM_MAP_PAGE_MASK(map)),
-               vm_map_round_page(addr+size,
-                                 VM_MAP_PAGE_MASK(map)),
+               VM_MAP_PAGE_MASK(map)),
+               vm_map_round_page(addr + size,
+               VM_MAP_PAGE_MASK(map)),
                attribute,
                value);
 }
                attribute,
                value);
 }
@@ -504,24 +529,26 @@ mach_vm_machine_attribute(
  */
 kern_return_t
 vm_machine_attribute(
  */
 kern_return_t
 vm_machine_attribute(
-       vm_map_t        map,
-       vm_address_t    addr,
-       vm_size_t       size,
-       vm_machine_attribute_t  attribute,
-       vm_machine_attribute_val_t* value)              /* IN/OUT */
+       vm_map_t        map,
+       vm_address_t    addr,
+       vm_size_t       size,
+       vm_machine_attribute_t  attribute,
+       vm_machine_attribute_val_t* value)              /* IN/OUT */
 {
 {
-       if ((map == VM_MAP_NULL) || (addr + size < addr))
-               return(KERN_INVALID_ARGUMENT);
+       if ((map == VM_MAP_NULL) || (addr + size < addr)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
        return vm_map_machine_attribute(
 
        return vm_map_machine_attribute(
-               map, 
+               map,
                vm_map_trunc_page(addr,
                vm_map_trunc_page(addr,
-                                 VM_MAP_PAGE_MASK(map)),
-               vm_map_round_page(addr+size,
-                                 VM_MAP_PAGE_MASK(map)),
+               VM_MAP_PAGE_MASK(map)),
+               vm_map_round_page(addr + size,
+               VM_MAP_PAGE_MASK(map)),
                attribute,
                value);
 }
                attribute,
                value);
 }
@@ -534,47 +561,49 @@ vm_machine_attribute(
  * the IPC implementation as part of receiving the reply to this call.
  * If IPC isn't used, the caller must deal with the vm_map_copy_t object
  * that gets returned.
  * the IPC implementation as part of receiving the reply to this call.
  * If IPC isn't used, the caller must deal with the vm_map_copy_t object
  * that gets returned.
- * 
+ *
  * JMM - because of mach_msg_type_number_t, this call is limited to a
  * single 4GB region at this time.
  *
  */
 kern_return_t
 mach_vm_read(
  * JMM - because of mach_msg_type_number_t, this call is limited to a
  * single 4GB region at this time.
  *
  */
 kern_return_t
 mach_vm_read(
-       vm_map_t                map,
-       mach_vm_address_t       addr,
-       mach_vm_size_t  size,
-       pointer_t               *data,
-       mach_msg_type_number_t  *data_size)
+       vm_map_t                map,
+       mach_vm_address_t       addr,
+       mach_vm_size_t  size,
+       pointer_t               *data,
+       mach_msg_type_number_t  *data_size)
 {
 {
-       kern_return_t   error;
-       vm_map_copy_t   ipc_address;
+       kern_return_t   error;
+       vm_map_copy_t   ipc_address;
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if ((mach_msg_type_number_t) size != size)
+       if ((mach_msg_type_number_t) size != size) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
-       
+       }
+
        error = vm_map_copyin(map,
        error = vm_map_copyin(map,
-                       (vm_map_address_t)addr,
-                       (vm_map_size_t)size,
-                       FALSE,  /* src_destroy */
-                       &ipc_address);
+           (vm_map_address_t)addr,
+           (vm_map_size_t)size,
+           FALSE,              /* src_destroy */
+           &ipc_address);
 
        if (KERN_SUCCESS == error) {
                *data = (pointer_t) ipc_address;
                *data_size = (mach_msg_type_number_t) size;
                assert(*data_size == size);
        }
 
        if (KERN_SUCCESS == error) {
                *data = (pointer_t) ipc_address;
                *data_size = (mach_msg_type_number_t) size;
                assert(*data_size == size);
        }
-       return(error);
+       return error;
 }
 
 /*
  * vm_read -
  * Read/copy a range from one address space and return it to the caller.
  * Limited addressability (same range limits as for the native kernel map).
 }
 
 /*
  * vm_read -
  * Read/copy a range from one address space and return it to the caller.
  * Limited addressability (same range limits as for the native kernel map).
- * 
+ *
  * It is assumed that the address for the returned memory is selected by
  * the IPC implementation as part of receiving the reply to this call.
  * If IPC isn't used, the caller must deal with the vm_map_copy_t object
  * It is assumed that the address for the returned memory is selected by
  * the IPC implementation as part of receiving the reply to this call.
  * If IPC isn't used, the caller must deal with the vm_map_copy_t object
@@ -582,19 +611,21 @@ mach_vm_read(
  */
 kern_return_t
 vm_read(
  */
 kern_return_t
 vm_read(
-       vm_map_t                map,
-       vm_address_t            addr,
-       vm_size_t               size,
-       pointer_t               *data,
-       mach_msg_type_number_t  *data_size)
+       vm_map_t                map,
+       vm_address_t            addr,
+       vm_size_t               size,
+       pointer_t               *data,
+       mach_msg_type_number_t  *data_size)
 {
 {
-       kern_return_t   error;
-       vm_map_copy_t   ipc_address;
+       kern_return_t   error;
+       vm_map_copy_t   ipc_address;
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size > (unsigned)(mach_msg_type_number_t) -1) {
+       mach_msg_type_number_t dsize;
+       if (os_convert_overflow(size, &dsize)) {
                /*
                 * The kernel could handle a 64-bit "size" value, but
                 * it could not return the size of the data in "*data_size"
                /*
                 * The kernel could handle a 64-bit "size" value, but
                 * it could not return the size of the data in "*data_size"
@@ -605,20 +636,20 @@ vm_read(
        }
 
        error = vm_map_copyin(map,
        }
 
        error = vm_map_copyin(map,
-                       (vm_map_address_t)addr,
-                       (vm_map_size_t)size,
-                       FALSE,  /* src_destroy */
-                       &ipc_address);
+           (vm_map_address_t)addr,
+           (vm_map_size_t)size,
+           FALSE,              /* src_destroy */
+           &ipc_address);
 
        if (KERN_SUCCESS == error) {
                *data = (pointer_t) ipc_address;
 
        if (KERN_SUCCESS == error) {
                *data = (pointer_t) ipc_address;
-               *data_size = (mach_msg_type_number_t) size;
+               *data_size = dsize;
                assert(*data_size == size);
        }
                assert(*data_size == size);
        }
-       return(error);
+       return error;
 }
 
 }
 
-/* 
+/*
  * mach_vm_read_list -
  * Read/copy a list of address ranges from specified map.
  *
  * mach_vm_read_list -
  * Read/copy a list of address ranges from specified map.
  *
@@ -628,37 +659,38 @@ vm_read(
  */
 kern_return_t
 mach_vm_read_list(
  */
 kern_return_t
 mach_vm_read_list(
-       vm_map_t                        map,
-       mach_vm_read_entry_t            data_list,
-       natural_t                       count)
+       vm_map_t                        map,
+       mach_vm_read_entry_t            data_list,
+       natural_t                       count)
 {
 {
-       mach_msg_type_number_t  i;
-       kern_return_t   error;
-       vm_map_copy_t   copy;
+       mach_msg_type_number_t  i;
+       kern_return_t   error;
+       vm_map_copy_t   copy;
 
        if (map == VM_MAP_NULL ||
 
        if (map == VM_MAP_NULL ||
-           count > VM_MAP_ENTRY_MAX)
-               return(KERN_INVALID_ARGUMENT);
+           count > VM_MAP_ENTRY_MAX) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        error = KERN_SUCCESS;
 
        error = KERN_SUCCESS;
-       for(i=0; i<count; i++) {
+       for (i = 0; i < count; i++) {
                vm_map_address_t map_addr;
                vm_map_size_t map_size;
 
                map_addr = (vm_map_address_t)(data_list[i].address);
                map_size = (vm_map_size_t)(data_list[i].size);
 
                vm_map_address_t map_addr;
                vm_map_size_t map_size;
 
                map_addr = (vm_map_address_t)(data_list[i].address);
                map_size = (vm_map_size_t)(data_list[i].size);
 
-               if(map_size != 0) {
+               if (map_size != 0) {
                        error = vm_map_copyin(map,
                        error = vm_map_copyin(map,
-                                       map_addr,
-                                       map_size,
-                                       FALSE,  /* src_destroy */
-                                       &copy);
+                           map_addr,
+                           map_size,
+                           FALSE,              /* src_destroy */
+                           &copy);
                        if (KERN_SUCCESS == error) {
                                error = vm_map_copyout(
                        if (KERN_SUCCESS == error) {
                                error = vm_map_copyout(
-                                               current_task()->map, 
-                                               &map_addr,
-                                               copy);
+                                       current_task()->map,
+                                       &map_addr,
+                                       copy);
                                if (KERN_SUCCESS == error) {
                                        data_list[i].address = map_addr;
                                        continue;
                                if (KERN_SUCCESS == error) {
                                        data_list[i].address = map_addr;
                                        continue;
@@ -669,10 +701,10 @@ mach_vm_read_list(
                data_list[i].address = (mach_vm_address_t)0;
                data_list[i].size = (mach_vm_size_t)0;
        }
                data_list[i].address = (mach_vm_address_t)0;
                data_list[i].size = (mach_vm_size_t)0;
        }
-       return(error);
+       return error;
 }
 
 }
 
-/* 
+/*
  * vm_read_list -
  * Read/copy a list of address ranges from specified map.
  *
  * vm_read_list -
  * Read/copy a list of address ranges from specified map.
  *
@@ -693,39 +725,40 @@ mach_vm_read_list(
 
 kern_return_t
 vm_read_list(
 
 kern_return_t
 vm_read_list(
-       vm_map_t                map,
-       vm_read_entry_t data_list,
-       natural_t               count)
+       vm_map_t                map,
+       vm_read_entry_t data_list,
+       natural_t               count)
 {
 {
-       mach_msg_type_number_t  i;
-       kern_return_t   error;
-       vm_map_copy_t   copy;
+       mach_msg_type_number_t  i;
+       kern_return_t   error;
+       vm_map_copy_t   copy;
 
        if (map == VM_MAP_NULL ||
 
        if (map == VM_MAP_NULL ||
-           count > VM_MAP_ENTRY_MAX)
-               return(KERN_INVALID_ARGUMENT);
+           count > VM_MAP_ENTRY_MAX) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        error = KERN_SUCCESS;
 
        error = KERN_SUCCESS;
-       for(i=0; i<count; i++) {
+       for (i = 0; i < count; i++) {
                vm_map_address_t map_addr;
                vm_map_size_t map_size;
 
                map_addr = (vm_map_address_t)(data_list[i].address);
                map_size = (vm_map_size_t)(data_list[i].size);
 
                vm_map_address_t map_addr;
                vm_map_size_t map_size;
 
                map_addr = (vm_map_address_t)(data_list[i].address);
                map_size = (vm_map_size_t)(data_list[i].size);
 
-               if(map_size != 0) {
+               if (map_size != 0) {
                        error = vm_map_copyin(map,
                        error = vm_map_copyin(map,
-                                       map_addr,
-                                       map_size,
-                                       FALSE,  /* src_destroy */
-                                       &copy);
+                           map_addr,
+                           map_size,
+                           FALSE,              /* src_destroy */
+                           &copy);
                        if (KERN_SUCCESS == error) {
                        if (KERN_SUCCESS == error) {
-                               error = vm_map_copyout(current_task()->map, 
-                                               &map_addr,
-                                               copy);
+                               error = vm_map_copyout(current_task()->map,
+                                   &map_addr,
+                                   copy);
                                if (KERN_SUCCESS == error) {
                                        data_list[i].address =
                                if (KERN_SUCCESS == error) {
                                        data_list[i].address =
-                                               CAST_DOWN(vm_offset_t, map_addr);
+                                           CAST_DOWN(vm_offset_t, map_addr);
                                        continue;
                                }
                                vm_map_copy_discard(copy);
                                        continue;
                                }
                                vm_map_copy_discard(copy);
@@ -734,14 +767,14 @@ vm_read_list(
                data_list[i].address = (mach_vm_address_t)0;
                data_list[i].size = (mach_vm_size_t)0;
        }
                data_list[i].address = (mach_vm_address_t)0;
                data_list[i].size = (mach_vm_size_t)0;
        }
-       return(error);
+       return error;
 }
 
 /*
  * mach_vm_read_overwrite -
  * Overwrite a range of the current map with data from the specified
  * map/address range.
 }
 
 /*
  * mach_vm_read_overwrite -
  * Overwrite a range of the current map with data from the specified
  * map/address range.
- * 
+ *
  * In making an assumption that the current thread is local, it is
  * no longer cluster-safe without a fully supportive local proxy
  * thread/task (but we don't support cluster's anymore so this is moot).
  * In making an assumption that the current thread is local, it is
  * no longer cluster-safe without a fully supportive local proxy
  * thread/task (but we don't support cluster's anymore so this is moot).
@@ -749,39 +782,40 @@ vm_read_list(
 
 kern_return_t
 mach_vm_read_overwrite(
 
 kern_return_t
 mach_vm_read_overwrite(
-       vm_map_t                map,
-       mach_vm_address_t       address,
-       mach_vm_size_t  size,
-       mach_vm_address_t       data,
-       mach_vm_size_t  *data_size)
+       vm_map_t                map,
+       mach_vm_address_t       address,
+       mach_vm_size_t  size,
+       mach_vm_address_t       data,
+       mach_vm_size_t  *data_size)
 {
 {
-       kern_return_t   error;
-       vm_map_copy_t   copy;
+       kern_return_t   error;
+       vm_map_copy_t   copy;
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        error = vm_map_copyin(map, (vm_map_address_t)address,
 
        error = vm_map_copyin(map, (vm_map_address_t)address,
-                               (vm_map_size_t)size, FALSE, &copy);
+           (vm_map_size_t)size, FALSE, &copy);
 
        if (KERN_SUCCESS == error) {
                error = vm_map_copy_overwrite(current_thread()->map,
 
        if (KERN_SUCCESS == error) {
                error = vm_map_copy_overwrite(current_thread()->map,
-                                       (vm_map_address_t)data, 
-                                       copy, FALSE);
+                   (vm_map_address_t)data,
+                   copy, FALSE);
                if (KERN_SUCCESS == error) {
                        *data_size = size;
                        return error;
                }
                vm_map_copy_discard(copy);
        }
                if (KERN_SUCCESS == error) {
                        *data_size = size;
                        return error;
                }
                vm_map_copy_discard(copy);
        }
-       return(error);
+       return error;
 }
 
 /*
  * vm_read_overwrite -
  * Overwrite a range of the current map with data from the specified
  * map/address range.
 }
 
 /*
  * vm_read_overwrite -
  * Overwrite a range of the current map with data from the specified
  * map/address range.
- * 
+ *
  * This routine adds the additional limitation that the source and
  * destination ranges must be describable with vm_address_t values
  * (i.e. the same size address spaces as the kernel, or at least the
  * This routine adds the additional limitation that the source and
  * destination ranges must be describable with vm_address_t values
  * (i.e. the same size address spaces as the kernel, or at least the
@@ -791,32 +825,33 @@ mach_vm_read_overwrite(
 
 kern_return_t
 vm_read_overwrite(
 
 kern_return_t
 vm_read_overwrite(
-       vm_map_t        map,
-       vm_address_t    address,
-       vm_size_t       size,
-       vm_address_t    data,
-       vm_size_t       *data_size)
+       vm_map_t        map,
+       vm_address_t    address,
+       vm_size_t       size,
+       vm_address_t    data,
+       vm_size_t       *data_size)
 {
 {
-       kern_return_t   error;
-       vm_map_copy_t   copy;
+       kern_return_t   error;
+       vm_map_copy_t   copy;
 
 
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        error = vm_map_copyin(map, (vm_map_address_t)address,
 
        error = vm_map_copyin(map, (vm_map_address_t)address,
-                               (vm_map_size_t)size, FALSE, &copy);
+           (vm_map_size_t)size, FALSE, &copy);
 
        if (KERN_SUCCESS == error) {
                error = vm_map_copy_overwrite(current_thread()->map,
 
        if (KERN_SUCCESS == error) {
                error = vm_map_copy_overwrite(current_thread()->map,
-                                       (vm_map_address_t)data, 
-                                       copy, FALSE);
+                   (vm_map_address_t)data,
+                   copy, FALSE);
                if (KERN_SUCCESS == error) {
                        *data_size = size;
                        return error;
                }
                vm_map_copy_discard(copy);
        }
                if (KERN_SUCCESS == error) {
                        *data_size = size;
                        return error;
                }
                vm_map_copy_discard(copy);
        }
-       return(error);
+       return error;
 }
 
 
 }
 
 
@@ -827,16 +862,17 @@ vm_read_overwrite(
  */
 kern_return_t
 mach_vm_write(
  */
 kern_return_t
 mach_vm_write(
-       vm_map_t                        map,
-       mach_vm_address_t               address,
-       pointer_t                       data,
-       __unused mach_msg_type_number_t size)
+       vm_map_t                        map,
+       mach_vm_address_t               address,
+       pointer_t                       data,
+       __unused mach_msg_type_number_t size)
 {
 {
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return vm_map_copy_overwrite(map, (vm_map_address_t)address,
 
        return vm_map_copy_overwrite(map, (vm_map_address_t)address,
-               (vm_map_copy_t) data, FALSE /* interruptible XXX */);
+                  (vm_map_copy_t) data, FALSE /* interruptible XXX */);
 }
 
 /*
 }
 
 /*
@@ -851,16 +887,17 @@ mach_vm_write(
  */
 kern_return_t
 vm_write(
  */
 kern_return_t
 vm_write(
-       vm_map_t                        map,
-       vm_address_t                    address,
-       pointer_t                       data,
-       __unused mach_msg_type_number_t size)
+       vm_map_t                        map,
+       vm_address_t                    address,
+       pointer_t                       data,
+       __unused mach_msg_type_number_t size)
 {
 {
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return vm_map_copy_overwrite(map, (vm_map_address_t)address,
 
        return vm_map_copy_overwrite(map, (vm_map_address_t)address,
-               (vm_map_copy_t) data, FALSE /* interruptible XXX */);
+                  (vm_map_copy_t) data, FALSE /* interruptible XXX */);
 }
 
 /*
 }
 
 /*
@@ -871,54 +908,58 @@ vm_write(
  */
 kern_return_t
 mach_vm_copy(
  */
 kern_return_t
 mach_vm_copy(
-       vm_map_t                map,
-       mach_vm_address_t       source_address,
-       mach_vm_size_t  size,
-       mach_vm_address_t       dest_address)
+       vm_map_t                map,
+       mach_vm_address_t       source_address,
+       mach_vm_size_t  size,
+       mach_vm_address_t       dest_address)
 {
        vm_map_copy_t copy;
        kern_return_t kr;
 
 {
        vm_map_copy_t copy;
        kern_return_t kr;
 
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        kr = vm_map_copyin(map, (vm_map_address_t)source_address,
 
        kr = vm_map_copyin(map, (vm_map_address_t)source_address,
-                          (vm_map_size_t)size, FALSE, &copy);
+           (vm_map_size_t)size, FALSE, &copy);
 
        if (KERN_SUCCESS == kr) {
                kr = vm_map_copy_overwrite(map,
 
        if (KERN_SUCCESS == kr) {
                kr = vm_map_copy_overwrite(map,
-                               (vm_map_address_t)dest_address,
-                               copy, FALSE /* interruptible XXX */);
+                   (vm_map_address_t)dest_address,
+                   copy, FALSE /* interruptible XXX */);
 
 
-               if (KERN_SUCCESS != kr)
+               if (KERN_SUCCESS != kr) {
                        vm_map_copy_discard(copy);
                        vm_map_copy_discard(copy);
+               }
        }
        return kr;
 }
 
 kern_return_t
 vm_copy(
        }
        return kr;
 }
 
 kern_return_t
 vm_copy(
-       vm_map_t        map,
-       vm_address_t    source_address,
-       vm_size_t       size,
-       vm_address_t    dest_address)
+       vm_map_t        map,
+       vm_address_t    source_address,
+       vm_size_t       size,
+       vm_address_t    dest_address)
 {
        vm_map_copy_t copy;
        kern_return_t kr;
 
 {
        vm_map_copy_t copy;
        kern_return_t kr;
 
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        kr = vm_map_copyin(map, (vm_map_address_t)source_address,
 
        kr = vm_map_copyin(map, (vm_map_address_t)source_address,
-                          (vm_map_size_t)size, FALSE, &copy);
+           (vm_map_size_t)size, FALSE, &copy);
 
        if (KERN_SUCCESS == kr) {
                kr = vm_map_copy_overwrite(map,
 
        if (KERN_SUCCESS == kr) {
                kr = vm_map_copy_overwrite(map,
-                               (vm_map_address_t)dest_address,
-                               copy, FALSE /* interruptible XXX */);
+                   (vm_map_address_t)dest_address,
+                   copy, FALSE /* interruptible XXX */);
 
 
-               if (KERN_SUCCESS != kr)
+               if (KERN_SUCCESS != kr) {
                        vm_map_copy_discard(copy);
                        vm_map_copy_discard(copy);
+               }
        }
        return kr;
 }
        }
        return kr;
 }
@@ -936,62 +977,67 @@ vm_copy(
  */
 kern_return_t
 mach_vm_map_external(
  */
 kern_return_t
 mach_vm_map_external(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  initial_size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t          initial_size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
-       return (mach_vm_map_kernel(target_map, address, initial_size, mask, flags, tag, port,
-                                       offset, copy, cur_protection, max_protection, inheritance));
+       return mach_vm_map_kernel(target_map, address, initial_size, mask,
+                  flags, VM_MAP_KERNEL_FLAGS_NONE, tag,
+                  port, offset, copy,
+                  cur_protection, max_protection,
+                  inheritance);
 }
 
 kern_return_t
 mach_vm_map_kernel(
 }
 
 kern_return_t
 mach_vm_map_kernel(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  initial_size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       vm_tag_t                tag,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  initial_size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       vm_map_kernel_flags_t   vmk_flags,
+       vm_tag_t                tag,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
 {
-       kern_return_t           kr;
-       vm_map_offset_t         vmmaddr;
+       kern_return_t           kr;
+       vm_map_offset_t         vmmaddr;
 
        vmmaddr = (vm_map_offset_t) *address;
 
        /* filter out any kernel-only flags */
 
        vmmaddr = (vm_map_offset_t) *address;
 
        /* filter out any kernel-only flags */
-       if (flags & ~VM_FLAGS_USER_MAP)
+       if (flags & ~VM_FLAGS_USER_MAP) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        kr = vm_map_enter_mem_object(target_map,
 
        kr = vm_map_enter_mem_object(target_map,
-                                    &vmmaddr,
-                                    initial_size,
-                                    mask,
-                                    flags,
-                                    VM_MAP_KERNEL_FLAGS_NONE,
-                                    tag,
-                                    port,
-                                    offset,
-                                    copy,
-                                    cur_protection,
-                                    max_protection,
-                                    inheritance);
+           &vmmaddr,
+           initial_size,
+           mask,
+           flags,
+           vmk_flags,
+           tag,
+           port,
+           offset,
+           copy,
+           cur_protection,
+           max_protection,
+           inheritance);
 
 #if KASAN
        if (kr == KERN_SUCCESS && target_map->pmap == kernel_pmap) {
 
 #if KASAN
        if (kr == KERN_SUCCESS && target_map->pmap == kernel_pmap) {
@@ -1007,39 +1053,43 @@ mach_vm_map_kernel(
 /* legacy interface */
 kern_return_t
 vm_map_64_external(
 /* legacy interface */
 kern_return_t
 vm_map_64_external(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
-       return (vm_map_64_kernel(target_map, address, size, mask, flags, tag, port, offset,
-                                   copy, cur_protection, max_protection, inheritance));
+       return vm_map_64_kernel(target_map, address, size, mask,
+                  flags, VM_MAP_KERNEL_FLAGS_NONE,
+                  tag, port, offset, copy,
+                  cur_protection, max_protection,
+                  inheritance);
 }
 
 kern_return_t
 vm_map_64_kernel(
 }
 
 kern_return_t
 vm_map_64_kernel(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       vm_tag_t                tag,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       vm_map_kernel_flags_t   vmk_flags,
+       vm_tag_t                tag,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        mach_vm_address_t map_addr;
        mach_vm_size_t map_size;
 {
        mach_vm_address_t map_addr;
        mach_vm_size_t map_size;
@@ -1050,9 +1100,10 @@ vm_map_64_kernel(
        map_size = (mach_vm_size_t)size;
        map_mask = (mach_vm_offset_t)mask;
 
        map_size = (mach_vm_size_t)size;
        map_mask = (mach_vm_offset_t)mask;
 
-       kr = mach_vm_map_kernel(target_map, &map_addr, map_size, map_mask, flags, tag,
-                        port, offset, copy, 
-                        cur_protection, max_protection, inheritance);
+       kr = mach_vm_map_kernel(target_map, &map_addr, map_size, map_mask,
+           flags, vmk_flags, tag,
+           port, offset, copy,
+           cur_protection, max_protection, inheritance);
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
@@ -1060,38 +1111,42 @@ vm_map_64_kernel(
 /* temporary, until world build */
 kern_return_t
 vm_map_external(
 /* temporary, until world build */
 kern_return_t
 vm_map_external(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_offset_t             offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_offset_t             offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
-       return (vm_map_kernel(target_map, address, size, mask, flags, tag,  port, offset, copy, cur_protection, max_protection, inheritance));
+       return vm_map_kernel(target_map, address, size, mask,
+                  flags, VM_MAP_KERNEL_FLAGS_NONE, tag,
+                  port, offset, copy,
+                  cur_protection, max_protection, inheritance);
 }
 
 kern_return_t
 vm_map_kernel(
 }
 
 kern_return_t
 vm_map_kernel(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       vm_tag_t                tag,
-       ipc_port_t              port,
-       vm_offset_t             offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       vm_map_kernel_flags_t   vmk_flags,
+       vm_tag_t                tag,
+       ipc_port_t              port,
+       vm_offset_t             offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        mach_vm_address_t map_addr;
        mach_vm_size_t map_size;
 {
        mach_vm_address_t map_addr;
        mach_vm_size_t map_size;
@@ -1104,9 +1159,10 @@ vm_map_kernel(
        map_mask = (mach_vm_offset_t)mask;
        obj_offset = (vm_object_offset_t)offset;
 
        map_mask = (mach_vm_offset_t)mask;
        obj_offset = (vm_object_offset_t)offset;
 
-       kr = mach_vm_map_kernel(target_map, &map_addr, map_size, map_mask, flags, tag,
-                        port, obj_offset, copy, 
-                        cur_protection, max_protection, inheritance);
+       kr = mach_vm_map_kernel(target_map, &map_addr, map_size, map_mask,
+           flags, vmk_flags, tag,
+           port, obj_offset, copy,
+           cur_protection, max_protection, inheritance);
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
@@ -1120,65 +1176,67 @@ vm_map_kernel(
  */
 kern_return_t
 mach_vm_remap_external(
  */
 kern_return_t
 mach_vm_remap_external(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       vm_map_t                src_map,
-       mach_vm_offset_t        memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       vm_map_t                src_map,
+       mach_vm_offset_t        memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
        VM_GET_FLAGS_ALIAS(flags, tag);
 
 {
        vm_tag_t tag;
        VM_GET_FLAGS_ALIAS(flags, tag);
 
-       return (mach_vm_remap_kernel(target_map, address, size, mask, flags, tag, src_map, memory_address,
-                                       copy, cur_protection, max_protection, inheritance));
+       return mach_vm_remap_kernel(target_map, address, size, mask, flags, tag, src_map, memory_address,
+                  copy, cur_protection, max_protection, inheritance);
 }
 
 kern_return_t
 mach_vm_remap_kernel(
 }
 
 kern_return_t
 mach_vm_remap_kernel(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       vm_tag_t                tag,
-       vm_map_t                src_map,
-       mach_vm_offset_t        memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       vm_tag_t                tag,
+       vm_map_t                src_map,
+       mach_vm_offset_t        memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance)
 {
 {
-       vm_map_offset_t         map_addr;
-       kern_return_t           kr;
+       vm_map_offset_t         map_addr;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == target_map || VM_MAP_NULL == src_map)
+       if (VM_MAP_NULL == target_map || VM_MAP_NULL == src_map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        /* filter out any kernel-only flags */
 
        /* filter out any kernel-only flags */
-       if (flags & ~VM_FLAGS_USER_REMAP)
+       if (flags & ~VM_FLAGS_USER_REMAP) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_offset_t)*address;
 
        kr = vm_map_remap(target_map,
 
        map_addr = (vm_map_offset_t)*address;
 
        kr = vm_map_remap(target_map,
-                         &map_addr,
-                         size,
-                         mask,
-                         flags,
-                         VM_MAP_KERNEL_FLAGS_NONE,
-                         tag,
-                         src_map,
-                         memory_address,
-                         copy,
-                         cur_protection,
-                         max_protection,
-                         inheritance);
+           &map_addr,
+           size,
+           mask,
+           flags,
+           VM_MAP_KERNEL_FLAGS_NONE,
+           tag,
+           src_map,
+           memory_address,
+           copy,
+           cur_protection,
+           max_protection,
+           inheritance);
        *address = map_addr;
        return kr;
 }
        *address = map_addr;
        return kr;
 }
@@ -1196,65 +1254,67 @@ mach_vm_remap_kernel(
  */
 kern_return_t
 vm_remap_external(
  */
 kern_return_t
 vm_remap_external(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       vm_map_t                src_map,
-       vm_offset_t             memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       vm_map_t                src_map,
+       vm_offset_t             memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
        VM_GET_FLAGS_ALIAS(flags, tag);
 
 {
        vm_tag_t tag;
        VM_GET_FLAGS_ALIAS(flags, tag);
 
-       return (vm_remap_kernel(target_map, address, size, mask, flags, tag, src_map,
-                               memory_address, copy, cur_protection, max_protection, inheritance));
+       return vm_remap_kernel(target_map, address, size, mask, flags, tag, src_map,
+                  memory_address, copy, cur_protection, max_protection, inheritance);
 }
 
 kern_return_t
 vm_remap_kernel(
 }
 
 kern_return_t
 vm_remap_kernel(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       vm_tag_t                tag,
-       vm_map_t                src_map,
-       vm_offset_t             memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       vm_tag_t                tag,
+       vm_map_t                src_map,
+       vm_offset_t             memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance)
 {
 {
-       vm_map_offset_t         map_addr;
-       kern_return_t           kr;
+       vm_map_offset_t         map_addr;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == target_map || VM_MAP_NULL == src_map)
+       if (VM_MAP_NULL == target_map || VM_MAP_NULL == src_map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        /* filter out any kernel-only flags */
 
        /* filter out any kernel-only flags */
-       if (flags & ~VM_FLAGS_USER_REMAP)
+       if (flags & ~VM_FLAGS_USER_REMAP) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_offset_t)*address;
 
        kr = vm_map_remap(target_map,
 
        map_addr = (vm_map_offset_t)*address;
 
        kr = vm_map_remap(target_map,
-                         &map_addr,
-                         size,
-                         mask,
-                         flags,
-                         VM_MAP_KERNEL_FLAGS_NONE,
-                         tag,
-                         src_map,
-                         memory_address,
-                         copy,
-                         cur_protection,
-                         max_protection,
-                         inheritance);
+           &map_addr,
+           size,
+           mask,
+           flags,
+           VM_MAP_KERNEL_FLAGS_NONE,
+           tag,
+           src_map,
+           memory_address,
+           copy,
+           cur_protection,
+           max_protection,
+           inheritance);
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
        *address = CAST_DOWN(vm_offset_t, map_addr);
        return kr;
 }
@@ -1274,52 +1334,55 @@ vm_remap_kernel(
  */
 kern_return_t
 mach_vm_wire_external(
  */
 kern_return_t
 mach_vm_wire_external(
-       host_priv_t             host_priv,
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t  size,
-       vm_prot_t               access)
+       host_priv_t             host_priv,
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t  size,
+       vm_prot_t               access)
 {
 {
-       return (mach_vm_wire_kernel(host_priv, map, start, size, access, VM_KERN_MEMORY_MLOCK));
+       return mach_vm_wire_kernel(host_priv, map, start, size, access, VM_KERN_MEMORY_MLOCK);
 }
 
 kern_return_t
 mach_vm_wire_kernel(
 }
 
 kern_return_t
 mach_vm_wire_kernel(
-       host_priv_t             host_priv,
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t  size,
-       vm_prot_t               access,
-       vm_tag_t                tag)
+       host_priv_t             host_priv,
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t  size,
+       vm_prot_t               access,
+       vm_tag_t                tag)
 {
 {
-       kern_return_t           rc;
+       kern_return_t           rc;
 
 
-       if (host_priv == HOST_PRIV_NULL)
+       if (host_priv == HOST_PRIV_NULL) {
                return KERN_INVALID_HOST;
                return KERN_INVALID_HOST;
+       }
 
        assert(host_priv == &realhost);
 
 
        assert(host_priv == &realhost);
 
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_TASK;
                return KERN_INVALID_TASK;
+       }
 
 
-       if (access & ~VM_PROT_ALL || (start + size < start))
+       if (access & ~VM_PROT_ALL || (start + size < start)) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        if (access != VM_PROT_NONE) {
                rc = vm_map_wire_kernel(map,
 
        if (access != VM_PROT_NONE) {
                rc = vm_map_wire_kernel(map,
-                                vm_map_trunc_page(start,
-                                                  VM_MAP_PAGE_MASK(map)),
-                                vm_map_round_page(start+size,
-                                                  VM_MAP_PAGE_MASK(map)),
-                                access, tag,
-                                TRUE);
+                   vm_map_trunc_page(start,
+                   VM_MAP_PAGE_MASK(map)),
+                   vm_map_round_page(start + size,
+                   VM_MAP_PAGE_MASK(map)),
+                   access, tag,
+                   TRUE);
        } else {
                rc = vm_map_unwire(map,
        } else {
                rc = vm_map_unwire(map,
-                                  vm_map_trunc_page(start,
-                                                    VM_MAP_PAGE_MASK(map)),
-                                  vm_map_round_page(start+size,
-                                                    VM_MAP_PAGE_MASK(map)),
-                                  TRUE);
+                   vm_map_trunc_page(start,
+                   VM_MAP_PAGE_MASK(map)),
+                   vm_map_round_page(start + size,
+                   VM_MAP_PAGE_MASK(map)),
+                   TRUE);
        }
        return rc;
 }
        }
        return rc;
 }
@@ -1334,42 +1397,45 @@ mach_vm_wire_kernel(
  */
 kern_return_t
 vm_wire(
  */
 kern_return_t
 vm_wire(
-       host_priv_t             host_priv,
-       vm_map_t                map,
-       vm_offset_t             start,
-       vm_size_t               size,
-       vm_prot_t               access)
+       host_priv_t             host_priv,
+       vm_map_t                map,
+       vm_offset_t             start,
+       vm_size_t               size,
+       vm_prot_t               access)
 {
 {
-       kern_return_t           rc;
+       kern_return_t           rc;
 
 
-       if (host_priv == HOST_PRIV_NULL)
+       if (host_priv == HOST_PRIV_NULL) {
                return KERN_INVALID_HOST;
                return KERN_INVALID_HOST;
+       }
 
        assert(host_priv == &realhost);
 
 
        assert(host_priv == &realhost);
 
-       if (map == VM_MAP_NULL)
+       if (map == VM_MAP_NULL) {
                return KERN_INVALID_TASK;
                return KERN_INVALID_TASK;
+       }
 
 
-       if ((access & ~VM_PROT_ALL) || (start + size < start))
+       if ((access & ~VM_PROT_ALL) || (start + size < start)) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        if (size == 0) {
                rc = KERN_SUCCESS;
        } else if (access != VM_PROT_NONE) {
                rc = vm_map_wire_kernel(map,
 
        if (size == 0) {
                rc = KERN_SUCCESS;
        } else if (access != VM_PROT_NONE) {
                rc = vm_map_wire_kernel(map,
-                                vm_map_trunc_page(start,
-                                                  VM_MAP_PAGE_MASK(map)),
-                                vm_map_round_page(start+size,
-                                                  VM_MAP_PAGE_MASK(map)),
-                                access, VM_KERN_MEMORY_OSFMK,
-                                TRUE);
+                   vm_map_trunc_page(start,
+                   VM_MAP_PAGE_MASK(map)),
+                   vm_map_round_page(start + size,
+                   VM_MAP_PAGE_MASK(map)),
+                   access, VM_KERN_MEMORY_OSFMK,
+                   TRUE);
        } else {
                rc = vm_map_unwire(map,
        } else {
                rc = vm_map_unwire(map,
-                                  vm_map_trunc_page(start,
-                                                    VM_MAP_PAGE_MASK(map)),
-                                  vm_map_round_page(start+size,
-                                                    VM_MAP_PAGE_MASK(map)),
-                                  TRUE);
+                   vm_map_trunc_page(start,
+                   VM_MAP_PAGE_MASK(map)),
+                   vm_map_round_page(start + size,
+                   VM_MAP_PAGE_MASK(map)),
+                   TRUE);
        }
        return rc;
 }
        }
        return rc;
 }
@@ -1407,19 +1473,19 @@ vm_wire(
 
 kern_return_t
 mach_vm_msync(
 
 kern_return_t
 mach_vm_msync(
-       vm_map_t                map,
-       mach_vm_address_t       address,
-       mach_vm_size_t  size,
-       vm_sync_t               sync_flags)
+       vm_map_t                map,
+       mach_vm_address_t       address,
+       mach_vm_size_t  size,
+       vm_sync_t               sync_flags)
 {
 {
-
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_TASK);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_TASK;
+       }
 
        return vm_map_msync(map, (vm_map_address_t)address,
 
        return vm_map_msync(map, (vm_map_address_t)address,
-                       (vm_map_size_t)size, sync_flags);
+                  (vm_map_size_t)size, sync_flags);
 }
 }
-      
+
 /*
  *     vm_msync
  *
 /*
  *     vm_msync
  *
@@ -1456,17 +1522,17 @@ mach_vm_msync(
 
 kern_return_t
 vm_msync(
 
 kern_return_t
 vm_msync(
-       vm_map_t        map,
-       vm_address_t    address,
-       vm_size_t       size,
-       vm_sync_t       sync_flags)
+       vm_map_t        map,
+       vm_address_t    address,
+       vm_size_t       size,
+       vm_sync_t       sync_flags)
 {
 {
-
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_TASK);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_TASK;
+       }
 
        return vm_map_msync(map, (vm_map_address_t)address,
 
        return vm_map_msync(map, (vm_map_address_t)address,
-                       (vm_map_size_t)size, sync_flags);
+                  (vm_map_size_t)size, sync_flags);
 }
 
 
 }
 
 
@@ -1474,11 +1540,11 @@ int
 vm_toggle_entry_reuse(int toggle, int *old_value)
 {
        vm_map_t map = current_map();
 vm_toggle_entry_reuse(int toggle, int *old_value)
 {
        vm_map_t map = current_map();
-       
+
        assert(!map->is_nested_map);
        assert(!map->is_nested_map);
-       if(toggle == VM_TOGGLE_GETVALUE && old_value != NULL){
+       if (toggle == VM_TOGGLE_GETVALUE && old_value != NULL) {
                *old_value = map->disable_vmentry_reuse;
                *old_value = map->disable_vmentry_reuse;
-       } else if(toggle == VM_TOGGLE_SET){
+       } else if (toggle == VM_TOGGLE_SET) {
                vm_map_entry_t map_to_entry;
 
                vm_map_lock(map);
                vm_map_entry_t map_to_entry;
 
                vm_map_lock(map);
@@ -1491,18 +1557,19 @@ vm_toggle_entry_reuse(int toggle, int *old_value)
                        map->highest_entry_end = map->first_free->vme_end;
                }
                vm_map_unlock(map);
                        map->highest_entry_end = map->first_free->vme_end;
                }
                vm_map_unlock(map);
-       } else if (toggle == VM_TOGGLE_CLEAR){
+       } else if (toggle == VM_TOGGLE_CLEAR) {
                vm_map_lock(map);
                map->disable_vmentry_reuse = FALSE;
                vm_map_unlock(map);
                vm_map_lock(map);
                map->disable_vmentry_reuse = FALSE;
                vm_map_unlock(map);
-       } else
+       } else {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return KERN_SUCCESS;
 }
 
 /*
 
        return KERN_SUCCESS;
 }
 
 /*
- *     mach_vm_behavior_set 
+ *     mach_vm_behavior_set
  *
  *     Sets the paging behavior attribute for the  specified range
  *     in the specified map.
  *
  *     Sets the paging behavior attribute for the  specified range
  *     in the specified map.
@@ -1510,20 +1577,22 @@ vm_toggle_entry_reuse(int toggle, int *old_value)
  *     This routine will fail with KERN_INVALID_ADDRESS if any address
  *     in [start,start+size) is not a valid allocated memory region.
  */
  *     This routine will fail with KERN_INVALID_ADDRESS if any address
  *     in [start,start+size) is not a valid allocated memory region.
  */
-kern_return_t 
+kern_return_t
 mach_vm_behavior_set(
 mach_vm_behavior_set(
-       vm_map_t                map,
-       mach_vm_offset_t        start,
-       mach_vm_size_t          size,
-       vm_behavior_t           new_behavior)
+       vm_map_t                map,
+       mach_vm_offset_t        start,
+       mach_vm_size_t          size,
+       vm_behavior_t           new_behavior)
 {
 {
-       vm_map_offset_t align_mask;
+       vm_map_offset_t align_mask;
 
 
-       if ((map == VM_MAP_NULL) || (start + size < start))
-               return(KERN_INVALID_ARGUMENT);
+       if ((map == VM_MAP_NULL) || (start + size < start)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
 
-       if (size == 0)
+       if (size == 0) {
                return KERN_SUCCESS;
                return KERN_SUCCESS;
+       }
 
        switch (new_behavior) {
        case VM_BEHAVIOR_REUSABLE:
 
        switch (new_behavior) {
        case VM_BEHAVIOR_REUSABLE:
@@ -1542,13 +1611,13 @@ mach_vm_behavior_set(
        }
 
        return vm_map_behavior_set(map,
        }
 
        return vm_map_behavior_set(map,
-                                  vm_map_trunc_page(start, align_mask),
-                                  vm_map_round_page(start+size, align_mask),
-                                  new_behavior);
+                  vm_map_trunc_page(start, align_mask),
+                  vm_map_round_page(start + size, align_mask),
+                  new_behavior);
 }
 
 /*
 }
 
 /*
- *     vm_behavior_set 
+ *     vm_behavior_set
  *
  *     Sets the paging behavior attribute for the  specified range
  *     in the specified map.
  *
  *     Sets the paging behavior attribute for the  specified range
  *     in the specified map.
@@ -1560,20 +1629,21 @@ mach_vm_behavior_set(
  *     use of vm_offset_t (if the map provided is larger than the
  *     kernel's).
  */
  *     use of vm_offset_t (if the map provided is larger than the
  *     kernel's).
  */
-kern_return_t 
+kern_return_t
 vm_behavior_set(
 vm_behavior_set(
-       vm_map_t                map,
-       vm_offset_t             start,
-       vm_size_t               size,
-       vm_behavior_t           new_behavior)
+       vm_map_t                map,
+       vm_offset_t             start,
+       vm_size_t               size,
+       vm_behavior_t           new_behavior)
 {
 {
-       if (start + size < start)
+       if (start + size < start) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return mach_vm_behavior_set(map,
 
        return mach_vm_behavior_set(map,
-                                   (mach_vm_offset_t) start,
-                                   (mach_vm_size_t) size,
-                                   new_behavior);
+                  (mach_vm_offset_t) start,
+                  (mach_vm_size_t) size,
+                  new_behavior);
 }
 
 /*
 }
 
 /*
@@ -1592,32 +1662,34 @@ vm_behavior_set(
 
 kern_return_t
 mach_vm_region(
 
 kern_return_t
 mach_vm_region(
-       vm_map_t                 map,
-       mach_vm_offset_t        *address,               /* IN/OUT */
-       mach_vm_size_t  *size,                  /* OUT */
-       vm_region_flavor_t       flavor,                /* IN */
-       vm_region_info_t         info,                  /* OUT */
-       mach_msg_type_number_t  *count,                 /* IN/OUT */
-       mach_port_t             *object_name)           /* OUT */
+       vm_map_t                 map,
+       mach_vm_offset_t        *address,               /* IN/OUT */
+       mach_vm_size_t  *size,                  /* OUT */
+       vm_region_flavor_t       flavor,                /* IN */
+       vm_region_info_t         info,                  /* OUT */
+       mach_msg_type_number_t  *count,                 /* IN/OUT */
+       mach_port_t             *object_name)           /* OUT */
 {
 {
-       vm_map_offset_t         map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_offset_t         map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_offset_t)*address;
        map_size = (vm_map_size_t)*size;
 
        /* legacy conversion */
 
        map_addr = (vm_map_offset_t)*address;
        map_size = (vm_map_size_t)*size;
 
        /* legacy conversion */
-       if (VM_REGION_BASIC_INFO == flavor)
+       if (VM_REGION_BASIC_INFO == flavor) {
                flavor = VM_REGION_BASIC_INFO_64;
                flavor = VM_REGION_BASIC_INFO_64;
+       }
 
        kr = vm_map_region(map,
 
        kr = vm_map_region(map,
-                          &map_addr, &map_size,
-                          flavor, info, count,
-                          object_name);
+           &map_addr, &map_size,
+           flavor, info, count,
+           object_name);
 
        *address = map_addr;
        *size = map_size;
 
        *address = map_addr;
        *size = map_size;
@@ -1640,71 +1712,76 @@ mach_vm_region(
 
 kern_return_t
 vm_region_64(
 
 kern_return_t
 vm_region_64(
-       vm_map_t                 map,
-       vm_offset_t             *address,               /* IN/OUT */
-       vm_size_t               *size,                  /* OUT */
-       vm_region_flavor_t       flavor,                /* IN */
-       vm_region_info_t         info,                  /* OUT */
-       mach_msg_type_number_t  *count,                 /* IN/OUT */
-       mach_port_t             *object_name)           /* OUT */
+       vm_map_t                 map,
+       vm_offset_t             *address,               /* IN/OUT */
+       vm_size_t               *size,                  /* OUT */
+       vm_region_flavor_t       flavor,                /* IN */
+       vm_region_info_t         info,                  /* OUT */
+       mach_msg_type_number_t  *count,                 /* IN/OUT */
+       mach_port_t             *object_name)           /* OUT */
 {
 {
-       vm_map_offset_t         map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_offset_t         map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_offset_t)*address;
        map_size = (vm_map_size_t)*size;
 
        /* legacy conversion */
 
        map_addr = (vm_map_offset_t)*address;
        map_size = (vm_map_size_t)*size;
 
        /* legacy conversion */
-       if (VM_REGION_BASIC_INFO == flavor)
+       if (VM_REGION_BASIC_INFO == flavor) {
                flavor = VM_REGION_BASIC_INFO_64;
                flavor = VM_REGION_BASIC_INFO_64;
+       }
 
        kr = vm_map_region(map,
 
        kr = vm_map_region(map,
-                          &map_addr, &map_size,
-                          flavor, info, count,
-                          object_name);
+           &map_addr, &map_size,
+           flavor, info, count,
+           object_name);
 
        *address = CAST_DOWN(vm_offset_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
 
        *address = CAST_DOWN(vm_offset_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
-       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS)
+       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS) {
                return KERN_INVALID_ADDRESS;
                return KERN_INVALID_ADDRESS;
+       }
        return kr;
 }
 
 kern_return_t
 vm_region(
        return kr;
 }
 
 kern_return_t
 vm_region(
-       vm_map_t                        map,
-       vm_address_t                    *address,       /* IN/OUT */
-       vm_size_t                       *size,          /* OUT */
-       vm_region_flavor_t              flavor, /* IN */
-       vm_region_info_t                info,           /* OUT */
-       mach_msg_type_number_t  *count, /* IN/OUT */
-       mach_port_t                     *object_name)   /* OUT */
+       vm_map_t                        map,
+       vm_address_t                    *address,       /* IN/OUT */
+       vm_size_t                       *size,          /* OUT */
+       vm_region_flavor_t              flavor, /* IN */
+       vm_region_info_t                info,           /* OUT */
+       mach_msg_type_number_t  *count, /* IN/OUT */
+       mach_port_t                     *object_name)   /* OUT */
 {
 {
-       vm_map_address_t        map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_address_t        map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region(map,
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region(map,
-                          &map_addr, &map_size,
-                          flavor, info, count,
-                          object_name);
+           &map_addr, &map_size,
+           flavor, info, count,
+           object_name);
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
-       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS)
+       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS) {
                return KERN_INVALID_ADDRESS;
                return KERN_INVALID_ADDRESS;
+       }
        return kr;
 }
 
        return kr;
 }
 
@@ -1715,30 +1792,31 @@ vm_region(
  */
 kern_return_t
 mach_vm_region_recurse(
  */
 kern_return_t
 mach_vm_region_recurse(
-       vm_map_t                        map,
-       mach_vm_address_t               *address,
-       mach_vm_size_t          *size,
-       uint32_t                        *depth,
-       vm_region_recurse_info_t        info,
-       mach_msg_type_number_t  *infoCnt)
+       vm_map_t                        map,
+       mach_vm_address_t               *address,
+       mach_vm_size_t          *size,
+       uint32_t                        *depth,
+       vm_region_recurse_info_t        info,
+       mach_msg_type_number_t  *infoCnt)
 {
 {
-       vm_map_address_t        map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_address_t        map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region_recurse_64(
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region_recurse_64(
-                       map,
-                       &map_addr,
-                       &map_size,
-                       depth,
-                       (vm_region_submap_info_64_t)info,
-                       infoCnt);
+               map,
+               &map_addr,
+               &map_size,
+               depth,
+               (vm_region_submap_info_64_t)info,
+               infoCnt);
 
        *address = map_addr;
        *size = map_size;
 
        *address = map_addr;
        *size = map_size;
@@ -1752,102 +1830,107 @@ mach_vm_region_recurse(
  */
 kern_return_t
 vm_region_recurse_64(
  */
 kern_return_t
 vm_region_recurse_64(
-       vm_map_t                        map,
-       vm_address_t                    *address,
-       vm_size_t                       *size,
-       uint32_t                        *depth,
-       vm_region_recurse_info_64_t     info,
-       mach_msg_type_number_t  *infoCnt)
+       vm_map_t                        map,
+       vm_address_t                    *address,
+       vm_size_t                       *size,
+       uint32_t                        *depth,
+       vm_region_recurse_info_64_t     info,
+       mach_msg_type_number_t  *infoCnt)
 {
 {
-       vm_map_address_t        map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_address_t        map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region_recurse_64(
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
 
        kr = vm_map_region_recurse_64(
-                       map,
-                       &map_addr,
-                       &map_size,
-                       depth,
-                       (vm_region_submap_info_64_t)info,
-                       infoCnt);
+               map,
+               &map_addr,
+               &map_size,
+               depth,
+               (vm_region_submap_info_64_t)info,
+               infoCnt);
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
 
-       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS)
+       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS) {
                return KERN_INVALID_ADDRESS;
                return KERN_INVALID_ADDRESS;
+       }
        return kr;
 }
 
 kern_return_t
 vm_region_recurse(
        return kr;
 }
 
 kern_return_t
 vm_region_recurse(
-       vm_map_t                        map,
-       vm_offset_t             *address,       /* IN/OUT */
-       vm_size_t                       *size,          /* OUT */
-       natural_t                       *depth, /* IN/OUT */
-       vm_region_recurse_info_t        info32, /* IN/OUT */
-       mach_msg_type_number_t  *infoCnt)       /* IN/OUT */
+       vm_map_t                        map,
+       vm_offset_t             *address,       /* IN/OUT */
+       vm_size_t                       *size,          /* OUT */
+       natural_t                       *depth, /* IN/OUT */
+       vm_region_recurse_info_t        info32, /* IN/OUT */
+       mach_msg_type_number_t  *infoCnt)       /* IN/OUT */
 {
        vm_region_submap_info_data_64_t info64;
        vm_region_submap_info_t info;
 {
        vm_region_submap_info_data_64_t info64;
        vm_region_submap_info_t info;
-       vm_map_address_t        map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_address_t        map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map || *infoCnt < VM_REGION_SUBMAP_INFO_COUNT)
+       if (VM_MAP_NULL == map || *infoCnt < VM_REGION_SUBMAP_INFO_COUNT) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
+
 
 
-       
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
        info = (vm_region_submap_info_t)info32;
        *infoCnt = VM_REGION_SUBMAP_INFO_COUNT_64;
 
        map_addr = (vm_map_address_t)*address;
        map_size = (vm_map_size_t)*size;
        info = (vm_region_submap_info_t)info32;
        *infoCnt = VM_REGION_SUBMAP_INFO_COUNT_64;
 
-       kr = vm_map_region_recurse_64(map, &map_addr,&map_size,
-                                     depth, &info64, infoCnt);
+       kr = vm_map_region_recurse_64(map, &map_addr, &map_size,
+           depth, &info64, infoCnt);
 
        info->protection = info64.protection;
        info->max_protection = info64.max_protection;
        info->inheritance = info64.inheritance;
        info->offset = (uint32_t)info64.offset; /* trouble-maker */
 
        info->protection = info64.protection;
        info->max_protection = info64.max_protection;
        info->inheritance = info64.inheritance;
        info->offset = (uint32_t)info64.offset; /* trouble-maker */
-        info->user_tag = info64.user_tag;
-        info->pages_resident = info64.pages_resident;
-        info->pages_shared_now_private = info64.pages_shared_now_private;
-        info->pages_swapped_out = info64.pages_swapped_out;
-        info->pages_dirtied = info64.pages_dirtied;
-        info->ref_count = info64.ref_count;
-        info->shadow_depth = info64.shadow_depth;
-        info->external_pager = info64.external_pager;
-        info->share_mode = info64.share_mode;
+       info->user_tag = info64.user_tag;
+       info->pages_resident = info64.pages_resident;
+       info->pages_shared_now_private = info64.pages_shared_now_private;
+       info->pages_swapped_out = info64.pages_swapped_out;
+       info->pages_dirtied = info64.pages_dirtied;
+       info->ref_count = info64.ref_count;
+       info->shadow_depth = info64.shadow_depth;
+       info->external_pager = info64.external_pager;
+       info->share_mode = info64.share_mode;
        info->is_submap = info64.is_submap;
        info->behavior = info64.behavior;
        info->object_id = info64.object_id;
        info->is_submap = info64.is_submap;
        info->behavior = info64.behavior;
        info->object_id = info64.object_id;
-       info->user_wired_count = info64.user_wired_count; 
+       info->user_wired_count = info64.user_wired_count;
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
        *infoCnt = VM_REGION_SUBMAP_INFO_COUNT;
 
 
        *address = CAST_DOWN(vm_address_t, map_addr);
        *size = CAST_DOWN(vm_size_t, map_size);
        *infoCnt = VM_REGION_SUBMAP_INFO_COUNT;
 
-       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS)
+       if (KERN_SUCCESS == kr && map_addr + map_size > VM_MAX_ADDRESS) {
                return KERN_INVALID_ADDRESS;
                return KERN_INVALID_ADDRESS;
+       }
        return kr;
 }
 
 kern_return_t
 mach_vm_purgable_control(
        return kr;
 }
 
 kern_return_t
 mach_vm_purgable_control(
-       vm_map_t                map,
-       mach_vm_offset_t        address,
-       vm_purgable_t           control,
-       int                     *state)
+       vm_map_t                map,
+       mach_vm_offset_t        address,
+       vm_purgable_t           control,
+       int                     *state)
 {
 {
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
 
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
@@ -1855,20 +1938,21 @@ mach_vm_purgable_control(
        }
 
        return vm_map_purgable_control(map,
        }
 
        return vm_map_purgable_control(map,
-                                      vm_map_trunc_page(address, PAGE_MASK),
-                                      control,
-                                      state);
+                  vm_map_trunc_page(address, PAGE_MASK),
+                  control,
+                  state);
 }
 
 kern_return_t
 vm_purgable_control(
 }
 
 kern_return_t
 vm_purgable_control(
-       vm_map_t                map,
-       vm_offset_t             address,
-       vm_purgable_t           control,
-       int                     *state)
+       vm_map_t                map,
+       vm_offset_t             address,
+       vm_purgable_t           control,
+       int                     *state)
 {
 {
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
 
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
@@ -1876,11 +1960,11 @@ vm_purgable_control(
        }
 
        return vm_map_purgable_control(map,
        }
 
        return vm_map_purgable_control(map,
-                                      vm_map_trunc_page(address, PAGE_MASK),
-                                      control,
-                                      state);
+                  vm_map_trunc_page(address, PAGE_MASK),
+                  control,
+                  state);
 }
 }
-                                       
+
 
 /*
  *     Ordinarily, the right to allocate CPM is restricted
 
 /*
  *     Ordinarily, the right to allocate CPM is restricted
@@ -1888,7 +1972,7 @@ vm_purgable_control(
  *     to the host priv port).  Set this variable to zero if
  *     you want to let any application allocate CPM.
  */
  *     to the host priv port).  Set this variable to zero if
  *     you want to let any application allocate CPM.
  */
-unsigned int   vm_allocate_cpm_privileged = 0;
+unsigned int    vm_allocate_cpm_privileged = 0;
 
 /*
  *     Allocate memory in the specified map, with the caveat that
 
 /*
  *     Allocate memory in the specified map, with the caveat that
@@ -1902,29 +1986,31 @@ unsigned int    vm_allocate_cpm_privileged = 0;
  */
 kern_return_t
 vm_allocate_cpm(
  */
 kern_return_t
 vm_allocate_cpm(
-       host_priv_t             host_priv,
-       vm_map_t                map,
-       vm_address_t            *addr,
-       vm_size_t               size,
-       int                     flags)
+       host_priv_t             host_priv,
+       vm_map_t                map,
+       vm_address_t            *addr,
+       vm_size_t               size,
+       int                     flags)
 {
 {
-       vm_map_address_t        map_addr;
-       vm_map_size_t           map_size;
-       kern_return_t           kr;
+       vm_map_address_t        map_addr;
+       vm_map_size_t           map_size;
+       kern_return_t           kr;
 
 
-       if (vm_allocate_cpm_privileged && HOST_PRIV_NULL == host_priv)
+       if (vm_allocate_cpm_privileged && HOST_PRIV_NULL == host_priv) {
                return KERN_INVALID_HOST;
                return KERN_INVALID_HOST;
+       }
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_addr = (vm_map_address_t)*addr;
        map_size = (vm_map_size_t)size;
 
        kr = vm_map_enter_cpm(map,
 
        map_addr = (vm_map_address_t)*addr;
        map_size = (vm_map_size_t)size;
 
        kr = vm_map_enter_cpm(map,
-                             &map_addr,
-                             map_size,
-                             flags);
+           &map_addr,
+           map_size,
+           flags);
 
        *addr = CAST_DOWN(vm_address_t, map_addr);
        return kr;
 
        *addr = CAST_DOWN(vm_address_t, map_addr);
        return kr;
@@ -1933,13 +2019,14 @@ vm_allocate_cpm(
 
 kern_return_t
 mach_vm_page_query(
 
 kern_return_t
 mach_vm_page_query(
-       vm_map_t                map,
-       mach_vm_offset_t        offset,
-       int                     *disposition,
-       int                     *ref_count)
+       vm_map_t                map,
+       mach_vm_offset_t        offset,
+       int                     *disposition,
+       int                     *ref_count)
 {
 {
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return vm_map_page_query_internal(
                map,
 
        return vm_map_page_query_internal(
                map,
@@ -1949,13 +2036,14 @@ mach_vm_page_query(
 
 kern_return_t
 vm_map_page_query(
 
 kern_return_t
 vm_map_page_query(
-       vm_map_t                map,
-       vm_offset_t             offset,
-       int                     *disposition,
-       int                     *ref_count)
+       vm_map_t                map,
+       vm_offset_t             offset,
+       int                     *disposition,
+       int                     *ref_count)
 {
 {
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        return vm_map_page_query_internal(
                map,
 
        return vm_map_page_query_internal(
                map,
@@ -1965,28 +2053,28 @@ vm_map_page_query(
 
 kern_return_t
 mach_vm_page_range_query(
 
 kern_return_t
 mach_vm_page_range_query(
-       vm_map_t                map,
-       mach_vm_offset_t        address,
-       mach_vm_size_t          size,
-       mach_vm_address_t       dispositions_addr,
-       mach_vm_size_t          *dispositions_count)
+       vm_map_t                map,
+       mach_vm_offset_t        address,
+       mach_vm_size_t          size,
+       mach_vm_address_t       dispositions_addr,
+       mach_vm_size_t          *dispositions_count)
 {
 {
-       kern_return_t           kr = KERN_SUCCESS;
-       int                     num_pages = 0, i = 0;
-       mach_vm_size_t          curr_sz = 0, copy_sz = 0;
-       mach_vm_size_t          disp_buf_req_size = 0, disp_buf_total_size = 0;
-       mach_msg_type_number_t  count = 0;
+       kern_return_t           kr = KERN_SUCCESS;
+       int                     num_pages = 0, i = 0;
+       mach_vm_size_t          curr_sz = 0, copy_sz = 0;
+       mach_vm_size_t          disp_buf_req_size = 0, disp_buf_total_size = 0;
+       mach_msg_type_number_t  count = 0;
 
 
-       void                    *info = NULL;
-       void                    *local_disp = NULL;;
-       vm_map_size_t           info_size = 0, local_disp_size = 0;
-       mach_vm_offset_t        start = 0, end = 0;
+       void                    *info = NULL;
+       void                    *local_disp = NULL;;
+       vm_map_size_t           info_size = 0, local_disp_size = 0;
+       mach_vm_offset_t        start = 0, end = 0;
 
        if (map == VM_MAP_NULL || dispositions_count == NULL) {
                return KERN_INVALID_ARGUMENT;
        }
 
 
        if (map == VM_MAP_NULL || dispositions_count == NULL) {
                return KERN_INVALID_ARGUMENT;
        }
 
-       disp_buf_req_size = ( *dispositions_count * sizeof(int));
+       disp_buf_req_size = (*dispositions_count * sizeof(int));
        start = mach_vm_trunc_page(address);
        end = mach_vm_round_page(address + size);
 
        start = mach_vm_trunc_page(address);
        end = mach_vm_round_page(address + size);
 
@@ -1994,6 +2082,13 @@ mach_vm_page_range_query(
                return KERN_INVALID_ARGUMENT;
        }
 
                return KERN_INVALID_ARGUMENT;
        }
 
+       if ((end - start) < size) {
+               /*
+                * Aligned size is less than unaligned size.
+                */
+               return KERN_INVALID_ARGUMENT;
+       }
+
        if (disp_buf_req_size == 0 || (end == start)) {
                return KERN_SUCCESS;
        }
        if (disp_buf_req_size == 0 || (end == start)) {
                return KERN_SUCCESS;
        }
@@ -2017,31 +2112,28 @@ mach_vm_page_range_query(
        local_disp = kalloc(local_disp_size);
 
        if (local_disp == NULL) {
        local_disp = kalloc(local_disp_size);
 
        if (local_disp == NULL) {
-       
                kfree(info, info_size);
                info = NULL;
                return KERN_RESOURCE_SHORTAGE;
        }
 
        while (size) {
                kfree(info, info_size);
                info = NULL;
                return KERN_RESOURCE_SHORTAGE;
        }
 
        while (size) {
-
                count = VM_PAGE_INFO_BASIC_COUNT;
                kr = vm_map_page_range_info_internal(
                count = VM_PAGE_INFO_BASIC_COUNT;
                kr = vm_map_page_range_info_internal(
-                               map,
-                               start,
-                               mach_vm_round_page(start + curr_sz),
-                               VM_PAGE_INFO_BASIC,
-                               (vm_page_info_t) info,
-                               &count);
+                       map,
+                       start,
+                       mach_vm_round_page(start + curr_sz),
+                       VM_PAGE_INFO_BASIC,
+                       (vm_page_info_t) info,
+                       &count);
 
                assert(kr == KERN_SUCCESS);
 
                for (i = 0; i < num_pages; i++) {
 
                assert(kr == KERN_SUCCESS);
 
                for (i = 0; i < num_pages; i++) {
-
                        ((int*)local_disp)[i] = ((vm_page_info_basic_t)info)[i].disposition;
                }
 
                        ((int*)local_disp)[i] = ((vm_page_info_basic_t)info)[i].disposition;
                }
 
-               copy_sz = MIN(disp_buf_req_size, num_pages * sizeof(int)/* an int per page */);
+               copy_sz = MIN(disp_buf_req_size, num_pages * sizeof(int) /* an int per page */);
                kr = copyout(local_disp, (mach_vm_address_t)dispositions_addr, copy_sz);
 
                start += curr_sz;
                kr = copyout(local_disp, (mach_vm_address_t)dispositions_addr, copy_sz);
 
                start += curr_sz;
@@ -2053,7 +2145,6 @@ mach_vm_page_range_query(
                }
 
                if ((disp_buf_req_size == 0) || (curr_sz >= size)) {
                }
 
                if ((disp_buf_req_size == 0) || (curr_sz >= size)) {
-
                        /*
                         * We might have inspected the full range OR
                         * more than it esp. if the user passed in
                        /*
                         * We might have inspected the full range OR
                         * more than it esp. if the user passed in
@@ -2062,9 +2153,7 @@ mach_vm_page_range_query(
                         */
 
                        size = 0;
                         */
 
                        size = 0;
-
                } else {
                } else {
-
                        dispositions_addr += copy_sz;
 
                        size -= curr_sz;
                        dispositions_addr += copy_sz;
 
                        size -= curr_sz;
@@ -2087,13 +2176,13 @@ mach_vm_page_range_query(
 
 kern_return_t
 mach_vm_page_info(
 
 kern_return_t
 mach_vm_page_info(
-       vm_map_t                map,
-       mach_vm_address_t       address,
-       vm_page_info_flavor_t   flavor,
-       vm_page_info_t          info,
-       mach_msg_type_number_t  *count)
+       vm_map_t                map,
+       mach_vm_address_t       address,
+       vm_page_info_flavor_t   flavor,
+       vm_page_info_t          info,
+       mach_msg_type_number_t  *count)
 {
 {
-       kern_return_t   kr;
+       kern_return_t   kr;
 
        if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
 
        if (map == VM_MAP_NULL) {
                return KERN_INVALID_ARGUMENT;
@@ -2106,15 +2195,16 @@ mach_vm_page_info(
 /* map a (whole) upl into an address space */
 kern_return_t
 vm_upl_map(
 /* map a (whole) upl into an address space */
 kern_return_t
 vm_upl_map(
-       vm_map_t                map, 
-       upl_t                   upl, 
-       vm_address_t            *dst_addr)
+       vm_map_t                map,
+       upl_t                   upl,
+       vm_address_t            *dst_addr)
 {
 {
-       vm_map_offset_t         map_addr;
-       kern_return_t           kr;
+       vm_map_offset_t         map_addr;
+       kern_return_t           kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        kr = vm_map_enter_upl(map, upl, &map_addr);
        *dst_addr = CAST_DOWN(vm_address_t, map_addr);
 
        kr = vm_map_enter_upl(map, upl, &map_addr);
        *dst_addr = CAST_DOWN(vm_address_t, map_addr);
@@ -2123,47 +2213,50 @@ vm_upl_map(
 
 kern_return_t
 vm_upl_unmap(
 
 kern_return_t
 vm_upl_unmap(
-       vm_map_t                map,
-       upl_t                   upl)
+       vm_map_t                map,
+       upl_t                   upl)
 {
 {
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
 
-       return (vm_map_remove_upl(map, upl));
+       return vm_map_remove_upl(map, upl);
 }
 
 /* Retrieve a upl for an object underlying an address range in a map */
 
 kern_return_t
 vm_map_get_upl(
 }
 
 /* Retrieve a upl for an object underlying an address range in a map */
 
 kern_return_t
 vm_map_get_upl(
-       vm_map_t                map,
-       vm_map_offset_t         map_offset,
-       upl_size_t              *upl_size,
-       upl_t                   *upl,
-       upl_page_info_array_t   page_list,
-       unsigned int            *count,
-       upl_control_flags_t     *flags,
-       vm_tag_t                tag,
-       int                     force_data_sync)
+       vm_map_t                map,
+       vm_map_offset_t         map_offset,
+       upl_size_t              *upl_size,
+       upl_t                   *upl,
+       upl_page_info_array_t   page_list,
+       unsigned int            *count,
+       upl_control_flags_t     *flags,
+       vm_tag_t                tag,
+       int                     force_data_sync)
 {
        upl_control_flags_t map_flags;
 {
        upl_control_flags_t map_flags;
-       kern_return_t       kr;
+       kern_return_t       kr;
 
 
-       if (VM_MAP_NULL == map)
+       if (VM_MAP_NULL == map) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
+       }
 
        map_flags = *flags & ~UPL_NOZEROFILL;
 
        map_flags = *flags & ~UPL_NOZEROFILL;
-       if (force_data_sync)
+       if (force_data_sync) {
                map_flags |= UPL_FORCE_DATA_SYNC;
                map_flags |= UPL_FORCE_DATA_SYNC;
+       }
 
        kr = vm_map_create_upl(map,
 
        kr = vm_map_create_upl(map,
-                              map_offset,
-                              upl_size,
-                              upl,
-                              page_list,
-                              count,
-                              &map_flags,
-                              tag);
+           map_offset,
+           upl_size,
+           upl,
+           page_list,
+           count,
+           &map_flags,
+           tag);
 
        *flags = (map_flags & ~UPL_FORCE_DATA_SYNC);
        return kr;
 
        *flags = (map_flags & ~UPL_FORCE_DATA_SYNC);
        return kr;
@@ -2186,62 +2279,89 @@ int log_executable_mem_entry = 0;
  */
 kern_return_t
 mach_make_memory_entry_64(
  */
 kern_return_t
 mach_make_memory_entry_64(
-       vm_map_t                target_map,
-       memory_object_size_t    *size,
+       vm_map_t                target_map,
+       memory_object_size_t    *size,
+       memory_object_offset_t offset,
+       vm_prot_t               permission,
+       ipc_port_t              *object_handle,
+       ipc_port_t              parent_handle)
+{
+       if ((permission & MAP_MEM_FLAGS_MASK) & ~MAP_MEM_FLAGS_USER) {
+               /*
+                * Unknown flag: reject for forward compatibility.
+                */
+               return KERN_INVALID_VALUE;
+       }
+
+       return mach_make_memory_entry_internal(target_map,
+                  size,
+                  offset,
+                  permission,
+                  object_handle,
+                  parent_handle);
+}
+
+kern_return_t
+mach_make_memory_entry_internal(
+       vm_map_t                target_map,
+       memory_object_size_t    *size,
        memory_object_offset_t offset,
        memory_object_offset_t offset,
-       vm_prot_t               permission,
-       ipc_port_t              *object_handle,
-       ipc_port_t              parent_handle)
+       vm_prot_t               permission,
+       ipc_port_t              *object_handle,
+       ipc_port_t              parent_handle)
 {
 {
-       vm_map_version_t        version;
-       vm_named_entry_t        parent_entry;
-       vm_named_entry_t        user_entry;
-       ipc_port_t              user_handle;
-       kern_return_t           kr;
-       vm_map_t                real_map;
+       vm_map_version_t        version;
+       vm_named_entry_t        parent_entry;
+       vm_named_entry_t        user_entry;
+       ipc_port_t              user_handle;
+       kern_return_t           kr;
+       vm_map_t                real_map;
 
        /* needed for call to vm_map_lookup_locked */
 
        /* needed for call to vm_map_lookup_locked */
-       boolean_t               wired;
-       boolean_t               iskernel;
-       vm_object_offset_t      obj_off;
-       vm_prot_t               prot;
-       struct vm_object_fault_info     fault_info;
-       vm_object_t             object;
-       vm_object_t             shadow_object;
+       boolean_t               wired;
+       boolean_t               iskernel;
+       vm_object_offset_t      obj_off;
+       vm_prot_t               prot;
+       struct vm_object_fault_info     fault_info = {};
+       vm_object_t             object;
+       vm_object_t             shadow_object;
 
        /* needed for direct map entry manipulation */
 
        /* needed for direct map entry manipulation */
-       vm_map_entry_t          map_entry;
-       vm_map_entry_t          next_entry;
-       vm_map_t                local_map;
-       vm_map_t                original_map = target_map;
-       vm_map_size_t           total_size, map_size;
-       vm_map_offset_t         map_start, map_end;
-       vm_map_offset_t         local_offset;
-       vm_object_size_t        mappable_size;
-
-       /* 
+       vm_map_entry_t          map_entry;
+       vm_map_entry_t          next_entry;
+       vm_map_t                local_map;
+       vm_map_t                original_map = target_map;
+       vm_map_size_t           total_size, map_size;
+       vm_map_offset_t         map_start, map_end;
+       vm_map_offset_t         local_offset;
+       vm_object_size_t        mappable_size;
+
+       /*
         * Stash the offset in the page for use by vm_map_enter_mem_object()
         * in the VM_FLAGS_RETURN_DATA_ADDR/MAP_MEM_USE_DATA_ADDR case.
         */
         * Stash the offset in the page for use by vm_map_enter_mem_object()
         * in the VM_FLAGS_RETURN_DATA_ADDR/MAP_MEM_USE_DATA_ADDR case.
         */
-       vm_object_offset_t      offset_in_page;
+       vm_object_offset_t      offset_in_page;
 
 
-       unsigned int            access;
-       vm_prot_t               protections;
-       vm_prot_t               original_protections, mask_protections;
-       unsigned int            wimg_mode;
+       unsigned int            access;
+       vm_prot_t               protections;
+       vm_prot_t               original_protections, mask_protections;
+       unsigned int            wimg_mode;
 
 
-       boolean_t               force_shadow = FALSE;
-       boolean_t               use_data_addr;
-       boolean_t               use_4K_compat;
+       boolean_t               force_shadow = FALSE;
+       boolean_t               use_data_addr;
+       boolean_t               use_4K_compat;
+#if VM_NAMED_ENTRY_LIST
+       int                     alias = -1;
+#endif /* VM_NAMED_ENTRY_LIST */
 
 
-       if ((permission & MAP_MEM_FLAGS_MASK) & ~MAP_MEM_FLAGS_USER) {
+       if ((permission & MAP_MEM_FLAGS_MASK) & ~MAP_MEM_FLAGS_ALL) {
                /*
                 * Unknown flag: reject for forward compatibility.
                 */
                return KERN_INVALID_VALUE;
        }
 
                /*
                 * Unknown flag: reject for forward compatibility.
                 */
                return KERN_INVALID_VALUE;
        }
 
-       if (parent_handle != IP_NULL &&
+       if (IP_VALID(parent_handle) &&
            ip_kotype(parent_handle) == IKOT_NAMED_ENTRY) {
                parent_entry = (vm_named_entry_t) parent_handle->ip_kobject;
        } else {
            ip_kotype(parent_handle) == IKOT_NAMED_ENTRY) {
                parent_entry = (vm_named_entry_t) parent_handle->ip_kobject;
        } else {
@@ -2265,40 +2385,42 @@ mach_make_memory_entry_64(
        map_start = vm_map_trunc_page(offset, PAGE_MASK);
 
        if (permission & MAP_MEM_ONLY) {
        map_start = vm_map_trunc_page(offset, PAGE_MASK);
 
        if (permission & MAP_MEM_ONLY) {
-               boolean_t               parent_is_object;
+               boolean_t               parent_is_object;
 
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
                map_size = map_end - map_start;
 
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
                map_size = map_end - map_start;
-               
+
                if (use_data_addr || use_4K_compat || parent_entry == NULL) {
                        return KERN_INVALID_ARGUMENT;
                }
 
                parent_is_object = !parent_entry->is_sub_map;
                object = parent_entry->backing.object;
                if (use_data_addr || use_4K_compat || parent_entry == NULL) {
                        return KERN_INVALID_ARGUMENT;
                }
 
                parent_is_object = !parent_entry->is_sub_map;
                object = parent_entry->backing.object;
-               if(parent_is_object && object != VM_OBJECT_NULL)
+               if (parent_is_object && object != VM_OBJECT_NULL) {
                        wimg_mode = object->wimg_bits;
                        wimg_mode = object->wimg_bits;
-               else
+               } else {
                        wimg_mode = VM_WIMG_USE_DEFAULT;
                        wimg_mode = VM_WIMG_USE_DEFAULT;
-               if((access != GET_MAP_MEM(parent_entry->protection)) &&
-                               !(parent_entry->protection & VM_PROT_WRITE)) { 
+               }
+               if ((access != GET_MAP_MEM(parent_entry->protection)) &&
+                   !(parent_entry->protection & VM_PROT_WRITE)) {
                        return KERN_INVALID_RIGHT;
                }
                vm_prot_to_wimg(access, &wimg_mode);
                        return KERN_INVALID_RIGHT;
                }
                vm_prot_to_wimg(access, &wimg_mode);
-               if (access != MAP_MEM_NOOP)
+               if (access != MAP_MEM_NOOP) {
                        SET_MAP_MEM(access, parent_entry->protection);
                        SET_MAP_MEM(access, parent_entry->protection);
+               }
                if (parent_is_object && object &&
                if (parent_is_object && object &&
-                       (access != MAP_MEM_NOOP) && 
-                       (!(object->nophyscache))) {
-
+                   (access != MAP_MEM_NOOP) &&
+                   (!(object->nophyscache))) {
                        if (object->wimg_bits != wimg_mode) {
                                vm_object_lock(object);
                                vm_object_change_wimg_mode(object, wimg_mode);
                                vm_object_unlock(object);
                        }
                }
                        if (object->wimg_bits != wimg_mode) {
                                vm_object_lock(object);
                                vm_object_change_wimg_mode(object, wimg_mode);
                                vm_object_unlock(object);
                        }
                }
-               if (object_handle)
+               if (object_handle) {
                        *object_handle = IP_NULL;
                        *object_handle = IP_NULL;
+               }
                return KERN_SUCCESS;
        } else if (permission & MAP_MEM_NAMED_CREATE) {
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
                return KERN_SUCCESS;
        } else if (permission & MAP_MEM_NAMED_CREATE) {
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
@@ -2330,7 +2452,9 @@ mach_make_memory_entry_64(
                assert(object != VM_OBJECT_NULL);
 
                if (permission & MAP_MEM_PURGABLE) {
                assert(object != VM_OBJECT_NULL);
 
                if (permission & MAP_MEM_PURGABLE) {
-                       if (! (permission & VM_PROT_WRITE)) {
+                       task_t owner;
+
+                       if (!(permission & VM_PROT_WRITE)) {
                                /* if we can't write, we can't purge */
                                vm_object_deallocate(object);
                                kr = KERN_INVALID_ARGUMENT;
                                /* if we can't write, we can't purge */
                                vm_object_deallocate(object);
                                kr = KERN_INVALID_ARGUMENT;
@@ -2340,17 +2464,34 @@ mach_make_memory_entry_64(
                        if (permission & MAP_MEM_PURGABLE_KERNEL_ONLY) {
                                object->purgeable_only_by_kernel = TRUE;
                        }
                        if (permission & MAP_MEM_PURGABLE_KERNEL_ONLY) {
                                object->purgeable_only_by_kernel = TRUE;
                        }
-                       assert(object->vo_purgeable_owner == NULL);
+                       assert(object->vo_owner == NULL);
                        assert(object->resident_page_count == 0);
                        assert(object->wired_page_count == 0);
                        vm_object_lock(object);
                        assert(object->resident_page_count == 0);
                        assert(object->wired_page_count == 0);
                        vm_object_lock(object);
-                       if (object->purgeable_only_by_kernel) {
-                               vm_purgeable_nonvolatile_enqueue(object,
-                                                                kernel_task);
-                       } else {
-                               vm_purgeable_nonvolatile_enqueue(object,
-                                                                current_task());
+                       owner = current_task();
+#if __arm64__
+                       if (owner->task_legacy_footprint) {
+                               /*
+                                * For ios11, we failed to account for
+                                * this memory.  Keep doing that for
+                                * legacy apps (built before ios12),
+                                * for backwards compatibility's sake...
+                                */
+                               owner = kernel_task;
                        }
                        }
+#endif /* __arm64__ */
+                       vm_purgeable_nonvolatile_enqueue(object, owner);
+                       vm_object_unlock(object);
+               }
+
+               if (permission & MAP_MEM_LEDGER_TAG_NETWORK) {
+                       /* make this object owned by the calling task */
+                       vm_object_lock(object);
+                       vm_object_ownership_change(
+                               object,
+                               VM_OBJECT_LEDGER_TAG_NETWORK,
+                               current_task(), /* new owner */
+                               FALSE); /* task_objq locked? */
                        vm_object_unlock(object);
                }
 
                        vm_object_unlock(object);
                }
 
@@ -2358,10 +2499,10 @@ mach_make_memory_entry_64(
                if (secluded_for_iokit && /* global boot-arg */
                    ((permission & MAP_MEM_GRAB_SECLUDED)
 #if 11
                if (secluded_for_iokit && /* global boot-arg */
                    ((permission & MAP_MEM_GRAB_SECLUDED)
 #if 11
-                    /* XXX FBDP for my testing only */
-                    || (secluded_for_fbdp && map_size == 97550336)
+                   /* XXX FBDP for my testing only */
+                   || (secluded_for_fbdp && map_size == 97550336)
 #endif
 #endif
-                           )) {
+                   )) {
 #if 11
                        if (!(permission & MAP_MEM_GRAB_SECLUDED) &&
                            secluded_for_fbdp) {
 #if 11
                        if (!(permission & MAP_MEM_GRAB_SECLUDED) &&
                            secluded_for_fbdp) {
@@ -2380,9 +2521,9 @@ mach_make_memory_entry_64(
 
                wimg_mode = object->wimg_bits;
                vm_prot_to_wimg(access, &wimg_mode);
 
                wimg_mode = object->wimg_bits;
                vm_prot_to_wimg(access, &wimg_mode);
-                if (access != MAP_MEM_NOOP) {
-                        object->wimg_bits = wimg_mode;
-                }
+               if (access != MAP_MEM_NOOP) {
+                       object->wimg_bits = wimg_mode;
+               }
 
                /* the object has no pages, so no WIMG bits to update here */
 
 
                /* the object has no pages, so no WIMG bits to update here */
 
@@ -2411,13 +2552,13 @@ mach_make_memory_entry_64(
                /* when the object field is filled in.                */
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
                /* when the object field is filled in.                */
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
-                                             user_entry->data_offset));
+                   user_entry->data_offset));
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (permission & MAP_MEM_VM_COPY) {
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (permission & MAP_MEM_VM_COPY) {
-               vm_map_copy_t   copy;
+               vm_map_copy_t   copy;
 
                if (target_map == VM_MAP_NULL) {
                        return KERN_INVALID_TASK;
 
                if (target_map == VM_MAP_NULL) {
                        return KERN_INVALID_TASK;
@@ -2427,21 +2568,22 @@ mach_make_memory_entry_64(
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
-                       if (use_4K_compat)
+                       if (use_4K_compat) {
                                offset_in_page &= ~((signed)(0xFFF));
                                offset_in_page &= ~((signed)(0xFFF));
+                       }
                } else {
                        offset_in_page = 0;
                }
 
                kr = vm_map_copyin_internal(target_map,
                } else {
                        offset_in_page = 0;
                }
 
                kr = vm_map_copyin_internal(target_map,
-                                           map_start,
-                                           map_size,
-                                           VM_MAP_COPYIN_ENTRY_LIST,
-                                           &copy);
+                   map_start,
+                   map_size,
+                   VM_MAP_COPYIN_ENTRY_LIST,
+                   &copy);
                if (kr != KERN_SUCCESS) {
                        return kr;
                }
                if (kr != KERN_SUCCESS) {
                        return kr;
                }
-                                  
+
                kr = mach_memory_entry_allocate(&user_entry, &user_handle);
                if (kr != KERN_SUCCESS) {
                        vm_map_copy_discard(copy);
                kr = mach_memory_entry_allocate(&user_entry, &user_handle);
                if (kr != KERN_SUCCESS) {
                        vm_map_copy_discard(copy);
@@ -2458,14 +2600,14 @@ mach_make_memory_entry_64(
                user_entry->data_offset = offset_in_page;
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
                user_entry->data_offset = offset_in_page;
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
-                                             user_entry->data_offset));
+                   user_entry->data_offset));
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (permission & MAP_MEM_VM_SHARE) {
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (permission & MAP_MEM_VM_SHARE) {
-               vm_map_copy_t   copy;
-               vm_prot_t       cur_prot, max_prot;
+               vm_map_copy_t   copy;
+               vm_prot_t       cur_prot, max_prot;
 
                if (target_map == VM_MAP_NULL) {
                        return KERN_INVALID_TASK;
 
                if (target_map == VM_MAP_NULL) {
                        return KERN_INVALID_TASK;
@@ -2475,26 +2617,27 @@ mach_make_memory_entry_64(
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
-                       if (use_4K_compat)
+                       if (use_4K_compat) {
                                offset_in_page &= ~((signed)(0xFFF));
                                offset_in_page &= ~((signed)(0xFFF));
+                       }
                } else {
                        offset_in_page = 0;
                }
 
                cur_prot = VM_PROT_ALL;
                kr = vm_map_copy_extract(target_map,
                } else {
                        offset_in_page = 0;
                }
 
                cur_prot = VM_PROT_ALL;
                kr = vm_map_copy_extract(target_map,
-                                        map_start,
-                                        map_size,
-                                        &copy,
-                                        &cur_prot,
-                                        &max_prot);
+                   map_start,
+                   map_size,
+                   &copy,
+                   &cur_prot,
+                   &max_prot);
                if (kr != KERN_SUCCESS) {
                        return kr;
                }
 
                if (mask_protections) {
                        /*
                if (kr != KERN_SUCCESS) {
                        return kr;
                }
 
                if (mask_protections) {
                        /*
-                        * We just want as much of "original_protections" 
+                        * We just want as much of "original_protections"
                         * as we can get out of the actual "cur_prot".
                         */
                        protections &= cur_prot;
                         * as we can get out of the actual "cur_prot".
                         */
                        protections &= cur_prot;
@@ -2530,20 +2673,20 @@ mach_make_memory_entry_64(
                user_entry->data_offset = offset_in_page;
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
                user_entry->data_offset = offset_in_page;
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
-                                             user_entry->data_offset));
+                   user_entry->data_offset));
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (parent_entry == NULL ||
            (permission & MAP_MEM_NAMED_REUSE)) {
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
 
        if (parent_entry == NULL ||
            (permission & MAP_MEM_NAMED_REUSE)) {
-
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
                map_end = vm_map_round_page(offset + *size, PAGE_MASK);
                map_size = map_end - map_start;
                if (use_data_addr || use_4K_compat) {
                        offset_in_page = offset - map_start;
-                       if (use_4K_compat)
+                       if (use_4K_compat) {
                                offset_in_page &= ~((signed)(0xFFF));
                                offset_in_page &= ~((signed)(0xFFF));
+                       }
                } else {
                        offset_in_page = 0;
                }
                } else {
                        offset_in_page = 0;
                }
@@ -2563,12 +2706,12 @@ redo_lookup:
                /* note we check the permission of the range against */
                /* that requested by the caller */
 
                /* note we check the permission of the range against */
                /* that requested by the caller */
 
-               kr = vm_map_lookup_locked(&target_map, map_start, 
-                                         protections | mask_protections,
-                                         OBJECT_LOCK_EXCLUSIVE, &version,
-                                         &object, &obj_off, &prot, &wired,
-                                         &fault_info,
-                                         &real_map);
+               kr = vm_map_lookup_locked(&target_map, map_start,
+                   protections | mask_protections,
+                   OBJECT_LOCK_EXCLUSIVE, &version,
+                   &object, &obj_off, &prot, &wired,
+                   &fault_info,
+                   &real_map);
                if (kr != KERN_SUCCESS) {
                        vm_map_unlock_read(target_map);
                        goto make_mem_done;
                if (kr != KERN_SUCCESS) {
                        vm_map_unlock_read(target_map);
                        goto make_mem_done;
@@ -2593,19 +2736,19 @@ redo_lookup:
                                void *bsd_info;
                                bsd_info = current_task()->bsd_info;
                                printf("pid %d[%s] making memory entry out of "
                                void *bsd_info;
                                bsd_info = current_task()->bsd_info;
                                printf("pid %d[%s] making memory entry out of "
-                                      "executable range from 0x%llx to 0x%llx:"
-                                      "might cause code-signing issues "
-                                      "later\n",
-                                      proc_selfpid(),
-                                      (bsd_info != NULL
-                                       ? proc_name_address(bsd_info)
-                                       : "?"),
-                                      (uint64_t) map_start,
-                                      (uint64_t) map_end);
+                                   "executable range from 0x%llx to 0x%llx:"
+                                   "might cause code-signing issues "
+                                   "later\n",
+                                   proc_selfpid(),
+                                   (bsd_info != NULL
+                                   ? proc_name_address(bsd_info)
+                                   : "?"),
+                                   (uint64_t) map_start,
+                                   (uint64_t) map_end);
                        }
                        DTRACE_VM2(cs_executable_mem_entry,
                        }
                        DTRACE_VM2(cs_executable_mem_entry,
-                                  uint64_t, (uint64_t)map_start,
-                                  uint64_t, (uint64_t)map_end);
+                           uint64_t, (uint64_t)map_start,
+                           uint64_t, (uint64_t)map_end);
                        cs_executable_mem_entry++;
 
 #if 11
                        cs_executable_mem_entry++;
 
 #if 11
@@ -2618,24 +2761,25 @@ redo_lookup:
                        kr = KERN_PROTECTION_FAILURE;
                        vm_object_unlock(object);
                        vm_map_unlock_read(target_map);
                        kr = KERN_PROTECTION_FAILURE;
                        vm_object_unlock(object);
                        vm_map_unlock_read(target_map);
-                       if(real_map != target_map)
+                       if (real_map != target_map) {
                                vm_map_unlock_read(real_map);
                                vm_map_unlock_read(real_map);
+                       }
                        goto make_mem_done;
 #endif /* 11 */
                        goto make_mem_done;
 #endif /* 11 */
-
                }
 #endif /* CONFIG_EMBEDDED */
 
                }
 #endif /* CONFIG_EMBEDDED */
 
-               if (((prot & protections) != protections) 
+               if (((prot & protections) != protections)
                    || (object == kernel_object)) {
                        kr = KERN_INVALID_RIGHT;
                        vm_object_unlock(object);
                        vm_map_unlock_read(target_map);
                    || (object == kernel_object)) {
                        kr = KERN_INVALID_RIGHT;
                        vm_object_unlock(object);
                        vm_map_unlock_read(target_map);
-                       if(real_map != target_map)
+                       if (real_map != target_map) {
                                vm_map_unlock_read(real_map);
                                vm_map_unlock_read(real_map);
-                       if(object == kernel_object) {
+                       }
+                       if (object == kernel_object) {
                                printf("Warning: Attempt to create a named"
                                printf("Warning: Attempt to create a named"
-                                       " entry from the kernel_object\n");
+                                   " entry from the kernel_object\n");
                        }
                        goto make_mem_done;
                }
                        }
                        goto make_mem_done;
                }
@@ -2659,59 +2803,66 @@ redo_lookup:
 
                local_map = original_map;
                local_offset = map_start;
 
                local_map = original_map;
                local_offset = map_start;
-               if(target_map != local_map) {
+               if (target_map != local_map) {
                        vm_map_unlock_read(target_map);
                        vm_map_unlock_read(target_map);
-                       if(real_map != target_map)
+                       if (real_map != target_map) {
                                vm_map_unlock_read(real_map);
                                vm_map_unlock_read(real_map);
+                       }
                        vm_map_lock_read(local_map);
                        target_map = local_map;
                        real_map = local_map;
                }
                        vm_map_lock_read(local_map);
                        target_map = local_map;
                        real_map = local_map;
                }
-               while(TRUE) {
-                  if(!vm_map_lookup_entry(local_map, 
-                                               local_offset, &map_entry)) {
-                       kr = KERN_INVALID_ARGUMENT;
-                        vm_map_unlock_read(target_map);
-                       if(real_map != target_map)
-                               vm_map_unlock_read(real_map);
-                        vm_object_deallocate(object); /* release extra ref */
-                       object = VM_OBJECT_NULL;
-                        goto make_mem_done;
-                  }
-                  iskernel = (local_map->pmap == kernel_pmap);
-                  if(!(map_entry->is_sub_map)) {
-                     if (VME_OBJECT(map_entry) != object) {
-                        kr = KERN_INVALID_ARGUMENT;
-                         vm_map_unlock_read(target_map);
-                        if(real_map != target_map)
-                               vm_map_unlock_read(real_map);
-                         vm_object_deallocate(object); /* release extra ref */
-                        object = VM_OBJECT_NULL;
-                         goto make_mem_done;
-                     }
-                     break;
-                  } else {
-                       vm_map_t        tmap;
-                       tmap = local_map;
-                       local_map = VME_SUBMAP(map_entry);
-                       
-                       vm_map_lock_read(local_map);
-                       vm_map_unlock_read(tmap);
-                       target_map = local_map;
-                       real_map = local_map;
-                       local_offset = local_offset - map_entry->vme_start;
-                       local_offset += VME_OFFSET(map_entry);
-                  }
+               while (TRUE) {
+                       if (!vm_map_lookup_entry(local_map,
+                           local_offset, &map_entry)) {
+                               kr = KERN_INVALID_ARGUMENT;
+                               vm_map_unlock_read(target_map);
+                               if (real_map != target_map) {
+                                       vm_map_unlock_read(real_map);
+                               }
+                               vm_object_deallocate(object); /* release extra ref */
+                               object = VM_OBJECT_NULL;
+                               goto make_mem_done;
+                       }
+                       iskernel = (local_map->pmap == kernel_pmap);
+                       if (!(map_entry->is_sub_map)) {
+                               if (VME_OBJECT(map_entry) != object) {
+                                       kr = KERN_INVALID_ARGUMENT;
+                                       vm_map_unlock_read(target_map);
+                                       if (real_map != target_map) {
+                                               vm_map_unlock_read(real_map);
+                                       }
+                                       vm_object_deallocate(object); /* release extra ref */
+                                       object = VM_OBJECT_NULL;
+                                       goto make_mem_done;
+                               }
+                               break;
+                       } else {
+                               vm_map_t        tmap;
+                               tmap = local_map;
+                               local_map = VME_SUBMAP(map_entry);
+
+                               vm_map_lock_read(local_map);
+                               vm_map_unlock_read(tmap);
+                               target_map = local_map;
+                               real_map = local_map;
+                               local_offset = local_offset - map_entry->vme_start;
+                               local_offset += VME_OFFSET(map_entry);
+                       }
                }
 
                }
 
+#if VM_NAMED_ENTRY_LIST
+               alias = VME_ALIAS(map_entry);
+#endif /* VM_NAMED_ENTRY_LIST */
+
                /*
                 * We found the VM map entry, lock the VM object again.
                 */
                vm_object_lock(object);
                /*
                 * We found the VM map entry, lock the VM object again.
                 */
                vm_object_lock(object);
-               if(map_entry->wired_count) {
-                        /* JMM - The check below should be reworked instead. */
-                        object->true_share = TRUE;
-                     }
+               if (map_entry->wired_count) {
+                       /* JMM - The check below should be reworked instead. */
+                       object->true_share = TRUE;
+               }
                if (mask_protections) {
                        /*
                         * The caller asked us to use the "protections" as
                if (mask_protections) {
                        /*
                         * The caller asked us to use the "protections" as
@@ -2720,34 +2871,35 @@ redo_lookup:
                         */
                        protections &= map_entry->max_protection;
                }
                         */
                        protections &= map_entry->max_protection;
                }
-               if(((map_entry->max_protection) & protections) != protections) {
-                        kr = KERN_INVALID_RIGHT;
-                         vm_object_unlock(object);
-                         vm_map_unlock_read(target_map);
-                        if(real_map != target_map)
+               if (((map_entry->max_protection) & protections) != protections) {
+                       kr = KERN_INVALID_RIGHT;
+                       vm_object_unlock(object);
+                       vm_map_unlock_read(target_map);
+                       if (real_map != target_map) {
                                vm_map_unlock_read(real_map);
                                vm_map_unlock_read(real_map);
-                        vm_object_deallocate(object);
-                        object = VM_OBJECT_NULL;
-                         goto make_mem_done;
+                       }
+                       vm_object_deallocate(object);
+                       object = VM_OBJECT_NULL;
+                       goto make_mem_done;
                }
 
                mappable_size = fault_info.hi_offset - obj_off;
                total_size = map_entry->vme_end - map_entry->vme_start;
                }
 
                mappable_size = fault_info.hi_offset - obj_off;
                total_size = map_entry->vme_end - map_entry->vme_start;
-               if(map_size > mappable_size) {
+               if (map_size > mappable_size) {
                        /* try to extend mappable size if the entries */
                        /* following are from the same object and are */
                        /* compatible */
                        next_entry = map_entry->vme_next;
                        /* lets see if the next map entry is still   */
                        /* pointing at this object and is contiguous */
                        /* try to extend mappable size if the entries */
                        /* following are from the same object and are */
                        /* compatible */
                        next_entry = map_entry->vme_next;
                        /* lets see if the next map entry is still   */
                        /* pointing at this object and is contiguous */
-                       while(map_size > mappable_size) {
+                       while (map_size > mappable_size) {
                                if ((VME_OBJECT(next_entry) == object) &&
                                if ((VME_OBJECT(next_entry) == object) &&
-                                   (next_entry->vme_start == 
-                                    next_entry->vme_prev->vme_end) &&
-                                   (VME_OFFSET(next_entry) == 
-                                    (VME_OFFSET(next_entry->vme_prev) + 
-                                     (next_entry->vme_prev->vme_end - 
-                                      next_entry->vme_prev->vme_start)))) {
+                                   (next_entry->vme_start ==
+                                   next_entry->vme_prev->vme_end) &&
+                                   (VME_OFFSET(next_entry) ==
+                                   (VME_OFFSET(next_entry->vme_prev) +
+                                   (next_entry->vme_prev->vme_end -
+                                   next_entry->vme_prev->vme_start)))) {
                                        if (mask_protections) {
                                                /*
                                                 * The caller asked us to use
                                        if (mask_protections) {
                                                /*
                                                 * The caller asked us to use
@@ -2762,27 +2914,27 @@ redo_lookup:
                                            (map_entry->wired_count == 0)) {
                                                break;
                                        }
                                            (map_entry->wired_count == 0)) {
                                                break;
                                        }
-                                       if(((next_entry->max_protection) 
-                                               & protections) != protections) {
-                                               break;
+                                       if (((next_entry->max_protection)
+                                           & protections) != protections) {
+                                               break;
                                        }
                                        if (next_entry->needs_copy !=
                                        }
                                        if (next_entry->needs_copy !=
-                                           map_entry->needs_copy)
+                                           map_entry->needs_copy) {
                                                break;
                                                break;
+                                       }
                                        mappable_size += next_entry->vme_end
                                        mappable_size += next_entry->vme_end
-                                               - next_entry->vme_start;
+                                           - next_entry->vme_start;
                                        total_size += next_entry->vme_end
                                        total_size += next_entry->vme_end
-                                               - next_entry->vme_start;
+                                           - next_entry->vme_start;
                                        next_entry = next_entry->vme_next;
                                } else {
                                        break;
                                }
                                        next_entry = next_entry->vme_next;
                                } else {
                                        break;
                                }
-                       
                        }
                }
 
                /* vm_map_entry_should_cow_for_true_share() checks for malloc tags,
                        }
                }
 
                /* vm_map_entry_should_cow_for_true_share() checks for malloc tags,
-                * never true in kernel */ 
+                * never true in kernel */
                if (!iskernel && vm_map_entry_should_cow_for_true_share(map_entry) &&
                    object->vo_size > map_size &&
                    map_size != 0) {
                if (!iskernel && vm_map_entry_should_cow_for_true_share(map_entry) &&
                    object->vo_size > map_size &&
                    map_size != 0) {
@@ -2791,7 +2943,7 @@ redo_lookup:
                         * limit the impact of "true_share"/"copy_delay" to
                         * that range instead of the entire VM object...
                         */
                         * limit the impact of "true_share"/"copy_delay" to
                         * that range instead of the entire VM object...
                         */
-                       
+
                        vm_object_unlock(object);
                        if (vm_map_lock_read_to_write(target_map)) {
                                vm_object_deallocate(object);
                        vm_object_unlock(object);
                        if (vm_map_lock_read_to_write(target_map)) {
                                vm_object_deallocate(object);
@@ -2800,13 +2952,13 @@ redo_lookup:
                        }
 
                        vm_map_clip_start(target_map,
                        }
 
                        vm_map_clip_start(target_map,
-                                         map_entry,
-                                         vm_map_trunc_page(map_start,
-                                                           VM_MAP_PAGE_MASK(target_map)));
+                           map_entry,
+                           vm_map_trunc_page(map_start,
+                           VM_MAP_PAGE_MASK(target_map)));
                        vm_map_clip_end(target_map,
                        vm_map_clip_end(target_map,
-                                       map_entry,
-                                       (vm_map_round_page(map_end,
-                                                          VM_MAP_PAGE_MASK(target_map))));
+                           map_entry,
+                           (vm_map_round_page(map_end,
+                           VM_MAP_PAGE_MASK(target_map))));
                        force_shadow = TRUE;
 
                        if ((map_entry->vme_end - offset) < map_size) {
                        force_shadow = TRUE;
 
                        if ((map_entry->vme_end - offset) < map_size) {
@@ -2819,21 +2971,22 @@ redo_lookup:
                }
 
                if (object->internal) {
                }
 
                if (object->internal) {
-                       /* vm_map_lookup_locked will create a shadow if   */
-                       /* needs_copy is set but does not check for the   */
-                       /* other two conditions shown. It is important to */ 
+                       /* vm_map_lookup_locked will create a shadow if   */
+                       /* needs_copy is set but does not check for the   */
+                       /* other two conditions shown. It is important to */
                        /* set up an object which will not be pulled from */
                        /* under us.  */
 
                        /* set up an object which will not be pulled from */
                        /* under us.  */
 
-                       if (force_shadow ||
-                           ((map_entry->needs_copy  ||
-                             object->shadowed ||
-                             (object->vo_size > total_size &&
-                              (VME_OFFSET(map_entry) != 0 ||
-                               object->vo_size >
-                               vm_map_round_page(total_size,
-                                                 VM_MAP_PAGE_MASK(target_map)))))
-                            && !object->true_share)) {
+                       if (force_shadow ||
+                           ((map_entry->needs_copy ||
+                           object->shadowed ||
+                           (object->vo_size > total_size &&
+                           (VME_OFFSET(map_entry) != 0 ||
+                           object->vo_size >
+                           vm_map_round_page(total_size,
+                           VM_MAP_PAGE_MASK(target_map)))))
+                           && !object->true_share
+                           && object->copy_strategy == MEMORY_OBJECT_COPY_SYMMETRIC)) {
                                /*
                                 * We have to unlock the VM object before
                                 * trying to upgrade the VM map lock, to
                                /*
                                 * We have to unlock the VM object before
                                 * trying to upgrade the VM map lock, to
@@ -2847,7 +3000,7 @@ redo_lookup:
                                 */
                                vm_object_unlock(object);
 
                                 */
                                vm_object_unlock(object);
 
-                               if (vm_map_lock_read_to_write(target_map)) {
+                               if (vm_map_lock_read_to_write(target_map)) {
                                        /*
                                         * We couldn't upgrade our VM map lock
                                         * from "read" to "write" and we lost
                                        /*
                                         * We couldn't upgrade our VM map lock
                                         * from "read" to "write" and we lost
@@ -2856,20 +3009,20 @@ redo_lookup:
                                         */
                                        vm_object_deallocate(object); /* extra ref */
                                        target_map = original_map;
                                         */
                                        vm_object_deallocate(object); /* extra ref */
                                        target_map = original_map;
-                                       goto redo_lookup;
-                               }
+                                       goto redo_lookup;
+                               }
 #if 00
                                vm_object_lock(object);
 #endif
 
 #if 00
                                vm_object_lock(object);
 #endif
 
-                               /* 
+                               /*
                                 * JMM - We need to avoid coming here when the object
                                 * is wired by anybody, not just the current map.  Why
                                 * couldn't we use the standard vm_object_copy_quickly()
                                 * approach here?
                                 */
                                 * JMM - We need to avoid coming here when the object
                                 * is wired by anybody, not just the current map.  Why
                                 * couldn't we use the standard vm_object_copy_quickly()
                                 * approach here?
                                 */
-                                
-                               /* create a shadow object */
+
+                               /* create a shadow object */
                                VME_OBJECT_SHADOW(map_entry, total_size);
                                shadow_object = VME_OBJECT(map_entry);
 #if 00
                                VME_OBJECT_SHADOW(map_entry, total_size);
                                shadow_object = VME_OBJECT(map_entry);
 #if 00
@@ -2879,47 +3032,49 @@ redo_lookup:
                                prot = map_entry->protection & ~VM_PROT_WRITE;
 
                                if (override_nx(target_map,
                                prot = map_entry->protection & ~VM_PROT_WRITE;
 
                                if (override_nx(target_map,
-                                               VME_ALIAS(map_entry))
-                                   && prot)
-                                       prot |= VM_PROT_EXECUTE;
+                                   VME_ALIAS(map_entry))
+                                   && prot) {
+                                       prot |= VM_PROT_EXECUTE;
+                               }
 
                                vm_object_pmap_protect(
                                        object, VME_OFFSET(map_entry),
                                        total_size,
 
                                vm_object_pmap_protect(
                                        object, VME_OFFSET(map_entry),
                                        total_size,
-                                       ((map_entry->is_shared 
-                                         || target_map->mapped_in_other_pmaps)
-                                                       ? PMAP_NULL :
-                                                       target_map->pmap),
+                                       ((map_entry->is_shared
+                                       || target_map->mapped_in_other_pmaps)
+                                       ? PMAP_NULL :
+                                       target_map->pmap),
                                        map_entry->vme_start,
                                        prot);
                                        map_entry->vme_start,
                                        prot);
-                               total_size -= (map_entry->vme_end 
-                                               - map_entry->vme_start);
+                               total_size -= (map_entry->vme_end
+                                   - map_entry->vme_start);
                                next_entry = map_entry->vme_next;
                                map_entry->needs_copy = FALSE;
 
                                vm_object_lock(shadow_object);
                                while (total_size) {
                                next_entry = map_entry->vme_next;
                                map_entry->needs_copy = FALSE;
 
                                vm_object_lock(shadow_object);
                                while (total_size) {
-                                   assert((next_entry->wired_count == 0) ||
-                                          (map_entry->wired_count));
-
-                                   if (VME_OBJECT(next_entry) == object) {
-                                       vm_object_reference_locked(shadow_object);
-                                       VME_OBJECT_SET(next_entry,
-                                                      shadow_object);
-                                       vm_object_deallocate(object);
-                                       VME_OFFSET_SET(
-                                               next_entry,
-                                               (VME_OFFSET(next_entry->vme_prev) +
-                                                (next_entry->vme_prev->vme_end 
-                                                 - next_entry->vme_prev->vme_start)));
+                                       assert((next_entry->wired_count == 0) ||
+                                           (map_entry->wired_count));
+
+                                       if (VME_OBJECT(next_entry) == object) {
+                                               vm_object_reference_locked(shadow_object);
+                                               VME_OBJECT_SET(next_entry,
+                                                   shadow_object);
+                                               vm_object_deallocate(object);
+                                               VME_OFFSET_SET(
+                                                       next_entry,
+                                                       (VME_OFFSET(next_entry->vme_prev) +
+                                                       (next_entry->vme_prev->vme_end
+                                                       - next_entry->vme_prev->vme_start)));
+                                               next_entry->use_pmap = TRUE;
                                                next_entry->needs_copy = FALSE;
                                        } else {
                                                panic("mach_make_memory_entry_64:"
                                                next_entry->needs_copy = FALSE;
                                        } else {
                                                panic("mach_make_memory_entry_64:"
-                                                 " map entries out of sync\n");
+                                                   " map entries out of sync\n");
                                        }
                                        }
-                                       total_size -= 
-                                               next_entry->vme_end 
-                                                       - next_entry->vme_start;
+                                       total_size -=
+                                           next_entry->vme_end
+                                           - next_entry->vme_start;
                                        next_entry = next_entry->vme_next;
                                }
 
                                        next_entry = next_entry->vme_next;
                                }
 
@@ -2932,11 +3087,11 @@ redo_lookup:
                                object = shadow_object;
 
                                obj_off = ((local_offset - map_entry->vme_start)
                                object = shadow_object;
 
                                obj_off = ((local_offset - map_entry->vme_start)
-                                          + VME_OFFSET(map_entry));
+                                   + VME_OFFSET(map_entry));
 
                                vm_map_lock_write_to_read(target_map);
 
                                vm_map_lock_write_to_read(target_map);
-                       }
-               }
+                       }
+               }
 
                /* note: in the future we can (if necessary) allow for  */
                /* memory object lists, this will better support        */
 
                /* note: in the future we can (if necessary) allow for  */
                /* memory object lists, this will better support        */
@@ -2949,8 +3104,9 @@ redo_lookup:
                /* against delayed copy, etc. is mostly defensive.      */
 
                wimg_mode = object->wimg_bits;
                /* against delayed copy, etc. is mostly defensive.      */
 
                wimg_mode = object->wimg_bits;
-               if(!(object->nophyscache))
+               if (!(object->nophyscache)) {
                        vm_prot_to_wimg(access, &wimg_mode);
                        vm_prot_to_wimg(access, &wimg_mode);
+               }
 
 #if VM_OBJECT_TRACKING_OP_TRUESHARE
                if (!object->true_share &&
 
 #if VM_OBJECT_TRACKING_OP_TRUESHARE
                if (!object->true_share &&
@@ -2959,19 +3115,20 @@ redo_lookup:
                        int num = 0;
 
                        num = OSBacktrace(bt,
                        int num = 0;
 
                        num = OSBacktrace(bt,
-                                         VM_OBJECT_TRACKING_BTDEPTH);
+                           VM_OBJECT_TRACKING_BTDEPTH);
                        btlog_add_entry(vm_object_tracking_btlog,
                        btlog_add_entry(vm_object_tracking_btlog,
-                                       object,
-                                       VM_OBJECT_TRACKING_OP_TRUESHARE,
-                                       bt,
-                                       num);
+                           object,
+                           VM_OBJECT_TRACKING_OP_TRUESHARE,
+                           bt,
+                           num);
                }
 #endif /* VM_OBJECT_TRACKING_OP_TRUESHARE */
 
                vm_object_lock_assert_exclusive(object);
                object->true_share = TRUE;
                }
 #endif /* VM_OBJECT_TRACKING_OP_TRUESHARE */
 
                vm_object_lock_assert_exclusive(object);
                object->true_share = TRUE;
-               if (object->copy_strategy == MEMORY_OBJECT_COPY_SYMMETRIC)
+               if (object->copy_strategy == MEMORY_OBJECT_COPY_SYMMETRIC) {
                        object->copy_strategy = MEMORY_OBJECT_COPY_DELAY;
                        object->copy_strategy = MEMORY_OBJECT_COPY_DELAY;
+               }
 
                /*
                 * The memory entry now points to this VM object and we
 
                /*
                 * The memory entry now points to this VM object and we
@@ -2981,11 +3138,13 @@ redo_lookup:
                 */
 
                vm_map_unlock_read(target_map);
                 */
 
                vm_map_unlock_read(target_map);
-               if(real_map != target_map)
+               if (real_map != target_map) {
                        vm_map_unlock_read(real_map);
                        vm_map_unlock_read(real_map);
+               }
 
 
-               if (object->wimg_bits != wimg_mode)
+               if (object->wimg_bits != wimg_mode) {
                        vm_object_change_wimg_mode(object, wimg_mode);
                        vm_object_change_wimg_mode(object, wimg_mode);
+               }
 
                /* the size of mapped entry that overlaps with our region */
                /* which is targeted for share.                           */
 
                /* the size of mapped entry that overlaps with our region */
                /* which is targeted for share.                           */
@@ -2993,8 +3152,9 @@ redo_lookup:
                /*                   offset of our beg addr within entry  */
                /* it corresponds to this:                                */
 
                /*                   offset of our beg addr within entry  */
                /* it corresponds to this:                                */
 
-               if(map_size > mappable_size)
+               if (map_size > mappable_size) {
                        map_size = mappable_size;
                        map_size = mappable_size;
+               }
 
                if (permission & MAP_MEM_NAMED_REUSE) {
                        /*
 
                if (permission & MAP_MEM_NAMED_REUSE) {
                        /*
@@ -3010,9 +3170,9 @@ redo_lookup:
                            parent_entry->protection == protections &&
                            parent_entry->size == map_size &&
                            ((!(use_data_addr || use_4K_compat) &&
                            parent_entry->protection == protections &&
                            parent_entry->size == map_size &&
                            ((!(use_data_addr || use_4K_compat) &&
-                             (parent_entry->data_offset == 0)) ||  
-                            ((use_data_addr || use_4K_compat) &&
-                             (parent_entry->data_offset == offset_in_page)))) {
+                           (parent_entry->data_offset == 0)) ||
+                           ((use_data_addr || use_4K_compat) &&
+                           (parent_entry->data_offset == offset_in_page)))) {
                                /*
                                 * We have a match: re-use "parent_entry".
                                 */
                                /*
                                 * We have a match: re-use "parent_entry".
                                 */
@@ -3024,8 +3184,8 @@ redo_lookup:
                                ipc_port_copy_send(parent_handle);
 
                                *size = CAST_DOWN(vm_size_t,
                                ipc_port_copy_send(parent_handle);
 
                                *size = CAST_DOWN(vm_size_t,
-                                                 (parent_entry->size -
-                                                  parent_entry->data_offset));
+                                   (parent_entry->size -
+                                   parent_entry->data_offset));
                                *object_handle = parent_handle;
                                return KERN_SUCCESS;
                        } else {
                                *object_handle = parent_handle;
                                return KERN_SUCCESS;
                        } else {
@@ -3052,15 +3212,17 @@ redo_lookup:
                user_entry->protection = protections;
                SET_MAP_MEM(GET_MAP_MEM(permission), user_entry->protection);
                user_entry->size = map_size;
                user_entry->protection = protections;
                SET_MAP_MEM(GET_MAP_MEM(permission), user_entry->protection);
                user_entry->size = map_size;
+#if VM_NAMED_ENTRY_LIST
+               user_entry->named_entry_alias = alias;
+#endif /* VM_NAMED_ENTRY_LIST */
 
                /* user_object pager and internal fields are not used */
                /* when the object field is filled in.                */
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
 
                /* user_object pager and internal fields are not used */
                /* when the object field is filled in.                */
 
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
-                                             user_entry->data_offset));
+                   user_entry->data_offset));
                *object_handle = user_handle;
                return KERN_SUCCESS;
                *object_handle = user_handle;
                return KERN_SUCCESS;
-
        } else {
                /* The new object will be base on an existing named object */
                if (parent_entry == NULL) {
        } else {
                /* The new object will be base on an existing named object */
                if (parent_entry == NULL) {
@@ -3080,15 +3242,16 @@ redo_lookup:
                         * Account for offset to data in parent entry and
                         * compute our own offset to data.
                         */
                         * Account for offset to data in parent entry and
                         * compute our own offset to data.
                         */
-                       if((offset + *size + parent_entry->data_offset) > parent_entry->size) {
+                       if ((offset + *size + parent_entry->data_offset) > parent_entry->size) {
                                kr = KERN_INVALID_ARGUMENT;
                                goto make_mem_done;
                        }
 
                        map_start = vm_map_trunc_page(offset + parent_entry->data_offset, PAGE_MASK);
                        offset_in_page = (offset + parent_entry->data_offset) - map_start;
                                kr = KERN_INVALID_ARGUMENT;
                                goto make_mem_done;
                        }
 
                        map_start = vm_map_trunc_page(offset + parent_entry->data_offset, PAGE_MASK);
                        offset_in_page = (offset + parent_entry->data_offset) - map_start;
-                       if (use_4K_compat)
+                       if (use_4K_compat) {
                                offset_in_page &= ~((signed)(0xFFF));
                                offset_in_page &= ~((signed)(0xFFF));
+                       }
                        map_end = vm_map_round_page(offset + parent_entry->data_offset + *size, PAGE_MASK);
                        map_size = map_end - map_start;
                } else {
                        map_end = vm_map_round_page(offset + parent_entry->data_offset + *size, PAGE_MASK);
                        map_size = map_end - map_start;
                } else {
@@ -3096,7 +3259,7 @@ redo_lookup:
                        map_size = map_end - map_start;
                        offset_in_page = 0;
 
                        map_size = map_end - map_start;
                        offset_in_page = 0;
 
-                       if((offset + map_size) > parent_entry->size) {
+                       if ((offset + map_size) > parent_entry->size) {
                                kr = KERN_INVALID_ARGUMENT;
                                goto make_mem_done;
                        }
                                kr = KERN_INVALID_ARGUMENT;
                                goto make_mem_done;
                        }
@@ -3110,7 +3273,7 @@ redo_lookup:
                         */
                        protections &= parent_entry->protection;
                }
                         */
                        protections &= parent_entry->protection;
                }
-               if((protections & parent_entry->protection) != protections) {
+               if ((protections & parent_entry->protection) != protections) {
                        kr = KERN_PROTECTION_FAILURE;
                        goto make_mem_done;
                }
                        kr = KERN_PROTECTION_FAILURE;
                        goto make_mem_done;
                }
@@ -3123,51 +3286,52 @@ redo_lookup:
 
                user_entry->size = map_size;
                user_entry->offset = parent_entry->offset + map_start;
 
                user_entry->size = map_size;
                user_entry->offset = parent_entry->offset + map_start;
-               user_entry->data_offset = offset_in_page; 
+               user_entry->data_offset = offset_in_page;
                user_entry->is_sub_map = parent_entry->is_sub_map;
                user_entry->is_copy = parent_entry->is_copy;
                user_entry->internal = parent_entry->internal;
                user_entry->protection = protections;
 
                user_entry->is_sub_map = parent_entry->is_sub_map;
                user_entry->is_copy = parent_entry->is_copy;
                user_entry->internal = parent_entry->internal;
                user_entry->protection = protections;
 
-               if(access != MAP_MEM_NOOP) {
-                  SET_MAP_MEM(access, user_entry->protection);
+               if (access != MAP_MEM_NOOP) {
+                       SET_MAP_MEM(access, user_entry->protection);
                }
 
                }
 
-               if(parent_entry->is_sub_map) {
-                  user_entry->backing.map = parent_entry->backing.map;
-                  vm_map_lock(user_entry->backing.map);
-                  user_entry->backing.map->ref_count++;
-                  vm_map_unlock(user_entry->backing.map);
+               if (parent_entry->is_sub_map) {
+                       user_entry->backing.map = parent_entry->backing.map;
+                       vm_map_lock(user_entry->backing.map);
+                       user_entry->backing.map->map_refcnt++;
+                       vm_map_unlock(user_entry->backing.map);
                } else {
                } else {
-                  object = parent_entry->backing.object;
-                  assert(object != VM_OBJECT_NULL);
-                  user_entry->backing.object = object;
-                  /* we now point to this object, hold on */
-                  vm_object_lock(object);
-                  vm_object_reference_locked(object); 
+                       object = parent_entry->backing.object;
+                       assert(object != VM_OBJECT_NULL);
+                       user_entry->backing.object = object;
+                       /* we now point to this object, hold on */
+                       vm_object_lock(object);
+                       vm_object_reference_locked(object);
 #if VM_OBJECT_TRACKING_OP_TRUESHARE
 #if VM_OBJECT_TRACKING_OP_TRUESHARE
-               if (!object->true_share &&
-                   vm_object_tracking_inited) {
-                       void *bt[VM_OBJECT_TRACKING_BTDEPTH];
-                       int num = 0;
-
-                       num = OSBacktrace(bt,
-                                         VM_OBJECT_TRACKING_BTDEPTH);
-                       btlog_add_entry(vm_object_tracking_btlog,
-                                       object,
-                                       VM_OBJECT_TRACKING_OP_TRUESHARE,
-                                       bt,
-                                       num);
-               }
+                       if (!object->true_share &&
+                           vm_object_tracking_inited) {
+                               void *bt[VM_OBJECT_TRACKING_BTDEPTH];
+                               int num = 0;
+
+                               num = OSBacktrace(bt,
+                                   VM_OBJECT_TRACKING_BTDEPTH);
+                               btlog_add_entry(vm_object_tracking_btlog,
+                                   object,
+                                   VM_OBJECT_TRACKING_OP_TRUESHARE,
+                                   bt,
+                                   num);
+                       }
 #endif /* VM_OBJECT_TRACKING_OP_TRUESHARE */
 
 #endif /* VM_OBJECT_TRACKING_OP_TRUESHARE */
 
-                  object->true_share = TRUE;
-                  if (object->copy_strategy == MEMORY_OBJECT_COPY_SYMMETRIC)
-                       object->copy_strategy = MEMORY_OBJECT_COPY_DELAY;
-                  vm_object_unlock(object);
+                       object->true_share = TRUE;
+                       if (object->copy_strategy == MEMORY_OBJECT_COPY_SYMMETRIC) {
+                               object->copy_strategy = MEMORY_OBJECT_COPY_DELAY;
+                       }
+                       vm_object_unlock(object);
                }
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
                }
                *size = CAST_DOWN(vm_size_t, (user_entry->size -
-                                             user_entry->data_offset));
+                   user_entry->data_offset));
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
                *object_handle = user_handle;
                return KERN_SUCCESS;
        }
@@ -3186,40 +3350,40 @@ make_mem_done:
 
 kern_return_t
 _mach_make_memory_entry(
 
 kern_return_t
 _mach_make_memory_entry(
-       vm_map_t                target_map,
-       memory_object_size_t    *size,
-       memory_object_offset_t  offset,
-       vm_prot_t               permission,
-       ipc_port_t              *object_handle,
-       ipc_port_t              parent_entry)
+       vm_map_t                target_map,
+       memory_object_size_t    *size,
+       memory_object_offset_t  offset,
+       vm_prot_t               permission,
+       ipc_port_t              *object_handle,
+       ipc_port_t              parent_entry)
 {
 {
-       memory_object_size_t    mo_size;
-       kern_return_t           kr;
-       
+       memory_object_size_t    mo_size;
+       kern_return_t           kr;
+
        mo_size = (memory_object_size_t)*size;
        mo_size = (memory_object_size_t)*size;
-       kr = mach_make_memory_entry_64(target_map, &mo_size, 
-                       (memory_object_offset_t)offset, permission, object_handle,
-                       parent_entry);
+       kr = mach_make_memory_entry_64(target_map, &mo_size,
+           (memory_object_offset_t)offset, permission, object_handle,
+           parent_entry);
        *size = mo_size;
        return kr;
 }
 
 kern_return_t
 mach_make_memory_entry(
        *size = mo_size;
        return kr;
 }
 
 kern_return_t
 mach_make_memory_entry(
-       vm_map_t                target_map,
-       vm_size_t               *size,
-       vm_offset_t             offset,
-       vm_prot_t               permission,
-       ipc_port_t              *object_handle,
-       ipc_port_t              parent_entry)
-{      
-       memory_object_size_t    mo_size;
-       kern_return_t           kr;
-       
+       vm_map_t                target_map,
+       vm_size_t               *size,
+       vm_offset_t             offset,
+       vm_prot_t               permission,
+       ipc_port_t              *object_handle,
+       ipc_port_t              parent_entry)
+{
+       memory_object_size_t    mo_size;
+       kern_return_t           kr;
+
        mo_size = (memory_object_size_t)*size;
        mo_size = (memory_object_size_t)*size;
-       kr = mach_make_memory_entry_64(target_map, &mo_size, 
-                       (memory_object_offset_t)offset, permission, object_handle,
-                       parent_entry);
+       kr = mach_make_memory_entry_64(target_map, &mo_size,
+           (memory_object_offset_t)offset, permission, object_handle,
+           parent_entry);
        *size = CAST_DOWN(vm_size_t, mo_size);
        return kr;
 }
        *size = CAST_DOWN(vm_size_t, mo_size);
        return kr;
 }
@@ -3234,32 +3398,70 @@ mach_make_memory_entry(
  */
 kern_return_t
 task_wire(
  */
 kern_return_t
 task_wire(
-       vm_map_t        map,
-       boolean_t       must_wire)
+       vm_map_t        map,
+       boolean_t       must_wire)
 {
 {
-       if (map == VM_MAP_NULL)
-               return(KERN_INVALID_ARGUMENT);
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       vm_map_lock(map);
+       map->wiring_required = (must_wire == TRUE);
+       vm_map_unlock(map);
+
+       return KERN_SUCCESS;
+}
+
+kern_return_t
+vm_map_exec_lockdown(
+       vm_map_t        map)
+{
+       if (map == VM_MAP_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       vm_map_lock(map);
+       map->map_disallow_new_exec = TRUE;
+       vm_map_unlock(map);
+
+       return KERN_SUCCESS;
+}
 
 
-       if (must_wire)
-               map->wiring_required = TRUE;
-       else
-               map->wiring_required = FALSE;
+#if VM_NAMED_ENTRY_LIST
+queue_head_t    vm_named_entry_list;
+int             vm_named_entry_count = 0;
+lck_mtx_t       vm_named_entry_list_lock_data;
+lck_mtx_ext_t   vm_named_entry_list_lock_data_ext;
+#endif /* VM_NAMED_ENTRY_LIST */
 
 
-       return(KERN_SUCCESS);
+void vm_named_entry_init(void);
+void
+vm_named_entry_init(void)
+{
+#if VM_NAMED_ENTRY_LIST
+       queue_init(&vm_named_entry_list);
+       vm_named_entry_count = 0;
+       lck_mtx_init_ext(&vm_named_entry_list_lock_data,
+           &vm_named_entry_list_lock_data_ext,
+           &vm_object_lck_grp,
+           &vm_object_lck_attr);
+#endif /* VM_NAMED_ENTRY_LIST */
 }
 
 __private_extern__ kern_return_t
 mach_memory_entry_allocate(
 }
 
 __private_extern__ kern_return_t
 mach_memory_entry_allocate(
-       vm_named_entry_t        *user_entry_p,
-       ipc_port_t              *user_handle_p)
+       vm_named_entry_t        *user_entry_p,
+       ipc_port_t              *user_handle_p)
 {
 {
-       vm_named_entry_t        user_entry;
-       ipc_port_t              user_handle;
-       ipc_port_t              previous;
+       vm_named_entry_t        user_entry;
+       ipc_port_t              user_handle;
+       ipc_port_t              previous;
 
        user_entry = (vm_named_entry_t) kalloc(sizeof *user_entry);
 
        user_entry = (vm_named_entry_t) kalloc(sizeof *user_entry);
-       if (user_entry == NULL)
+       if (user_entry == NULL) {
                return KERN_FAILURE;
                return KERN_FAILURE;
+       }
+       bzero(user_entry, sizeof(*user_entry));
 
        named_entry_lock_init(user_entry);
 
 
        named_entry_lock_init(user_entry);
 
@@ -3274,14 +3476,10 @@ mach_memory_entry_allocate(
        user_handle->ip_sorights++;
        ip_reference(user_handle);
 
        user_handle->ip_sorights++;
        ip_reference(user_handle);
 
-       user_handle->ip_destination = IP_NULL;
-       user_handle->ip_receiver_name = MACH_PORT_NULL;
-       user_handle->ip_receiver = ipc_space_kernel;
-
        /* make a send right */
        /* make a send right */
-        user_handle->ip_mscount++;
-        user_handle->ip_srights++;
-        ip_reference(user_handle);
+       user_handle->ip_mscount++;
+       user_handle->ip_srights++;
+       ip_reference(user_handle);
 
        ipc_port_nsrequest(user_handle, 1, user_handle, &previous);
        /* nsrequest unlocks user_handle */
 
        ipc_port_nsrequest(user_handle, 1, user_handle, &previous);
        /* nsrequest unlocks user_handle */
@@ -3297,11 +3495,26 @@ mach_memory_entry_allocate(
        user_entry->ref_count = 1;
 
        ipc_kobject_set(user_handle, (ipc_kobject_t) user_entry,
        user_entry->ref_count = 1;
 
        ipc_kobject_set(user_handle, (ipc_kobject_t) user_entry,
-                       IKOT_NAMED_ENTRY);
+           IKOT_NAMED_ENTRY);
 
        *user_entry_p = user_entry;
        *user_handle_p = user_handle;
 
 
        *user_entry_p = user_entry;
        *user_handle_p = user_handle;
 
+#if VM_NAMED_ENTRY_LIST
+       /* keep a loose (no reference) pointer to the Mach port, for debugging only */
+       user_entry->named_entry_port = user_handle;
+       /* backtrace at allocation time, for debugging only */
+       OSBacktrace(&user_entry->named_entry_bt[0],
+           NAMED_ENTRY_BT_DEPTH);
+
+       /* add this new named entry to the global list */
+       lck_mtx_lock_spin(&vm_named_entry_list_lock_data);
+       queue_enter(&vm_named_entry_list, user_entry,
+           vm_named_entry_t, named_entry_list);
+       vm_named_entry_count++;
+       lck_mtx_unlock(&vm_named_entry_list_lock_data);
+#endif /* VM_NAMED_ENTRY_LIST */
+
        return KERN_SUCCESS;
 }
 
        return KERN_SUCCESS;
 }
 
@@ -3313,20 +3526,21 @@ mach_memory_entry_allocate(
  */
 kern_return_t
 mach_memory_object_memory_entry_64(
  */
 kern_return_t
 mach_memory_object_memory_entry_64(
-       host_t                  host,
-       boolean_t               internal,
-       vm_object_offset_t      size,
-       vm_prot_t               permission,
-       memory_object_t         pager,
-       ipc_port_t              *entry_handle)
+       host_t                  host,
+       boolean_t               internal,
+       vm_object_offset_t      size,
+       vm_prot_t               permission,
+       memory_object_t         pager,
+       ipc_port_t              *entry_handle)
 {
 {
-       unsigned int            access;
-       vm_named_entry_t        user_entry;
-       ipc_port_t              user_handle;
-       vm_object_t             object;
+       unsigned int            access;
+       vm_named_entry_t        user_entry;
+       ipc_port_t              user_handle;
+       vm_object_t             object;
 
 
-        if (host == HOST_NULL)
-                return(KERN_INVALID_HOST);
+       if (host == HOST_NULL) {
+               return KERN_INVALID_HOST;
+       }
 
        if (pager == MEMORY_OBJECT_NULL && internal) {
                object = vm_object_allocate(size);
 
        if (pager == MEMORY_OBJECT_NULL && internal) {
                object = vm_object_allocate(size);
@@ -3367,23 +3581,23 @@ mach_memory_object_memory_entry_64(
 
 kern_return_t
 mach_memory_object_memory_entry(
 
 kern_return_t
 mach_memory_object_memory_entry(
-       host_t          host,
-       boolean_t       internal,
-       vm_size_t       size,
-       vm_prot_t       permission,
-       memory_object_t pager,
-       ipc_port_t      *entry_handle)
+       host_t          host,
+       boolean_t       internal,
+       vm_size_t       size,
+       vm_prot_t       permission,
+       memory_object_t pager,
+       ipc_port_t      *entry_handle)
 {
 {
-       return mach_memory_object_memory_entry_64( host, internal, 
-               (vm_object_offset_t)size, permission, pager, entry_handle);
+       return mach_memory_object_memory_entry_64( host, internal,
+                  (vm_object_offset_t)size, permission, pager, entry_handle);
 }
 
 
 kern_return_t
 mach_memory_entry_purgable_control(
 }
 
 
 kern_return_t
 mach_memory_entry_purgable_control(
-       ipc_port_t      entry_port,
-       vm_purgable_t   control,
-       int             *state)
+       ipc_port_t      entry_port,
+       vm_purgable_t   control,
+       int             *state)
 {
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
 {
        if (control == VM_PURGABLE_SET_STATE_FROM_KERNEL) {
                /* not allowed from user-space */
@@ -3395,28 +3609,30 @@ mach_memory_entry_purgable_control(
 
 kern_return_t
 memory_entry_purgeable_control_internal(
 
 kern_return_t
 memory_entry_purgeable_control_internal(
-       ipc_port_t      entry_port,
-       vm_purgable_t   control,
-       int             *state)
+       ipc_port_t      entry_port,
+       vm_purgable_t   control,
+       int             *state)
 {
 {
-       kern_return_t           kr;
-       vm_named_entry_t        mem_entry;
-       vm_object_t             object;
+       kern_return_t           kr;
+       vm_named_entry_t        mem_entry;
+       vm_object_t             object;
 
 
-       if (entry_port == IP_NULL ||
+       if (!IP_VALID(entry_port) ||
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
        if (control != VM_PURGABLE_SET_STATE &&
            control != VM_PURGABLE_GET_STATE &&
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
        if (control != VM_PURGABLE_SET_STATE &&
            control != VM_PURGABLE_GET_STATE &&
-           control != VM_PURGABLE_SET_STATE_FROM_KERNEL)
-               return(KERN_INVALID_ARGUMENT);
+           control != VM_PURGABLE_SET_STATE_FROM_KERNEL) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        if ((control == VM_PURGABLE_SET_STATE ||
 
        if ((control == VM_PURGABLE_SET_STATE ||
-            control == VM_PURGABLE_SET_STATE_FROM_KERNEL) &&
+           control == VM_PURGABLE_SET_STATE_FROM_KERNEL) &&
            (((*state & ~(VM_PURGABLE_ALL_MASKS)) != 0) ||
            (((*state & ~(VM_PURGABLE_ALL_MASKS)) != 0) ||
-            ((*state & VM_PURGABLE_STATE_MASK) > VM_PURGABLE_STATE_MASK)))
-               return(KERN_INVALID_ARGUMENT);
+           ((*state & VM_PURGABLE_STATE_MASK) > VM_PURGABLE_STATE_MASK))) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        mem_entry = (vm_named_entry_t) entry_port->ip_kobject;
 
 
        mem_entry = (vm_named_entry_t) entry_port->ip_kobject;
 
@@ -3452,19 +3668,82 @@ memory_entry_purgeable_control_internal(
        return kr;
 }
 
        return kr;
 }
 
+kern_return_t
+mach_memory_entry_access_tracking(
+       ipc_port_t      entry_port,
+       int             *access_tracking,
+       uint32_t        *access_tracking_reads,
+       uint32_t        *access_tracking_writes)
+{
+       return memory_entry_access_tracking_internal(entry_port,
+                  access_tracking,
+                  access_tracking_reads,
+                  access_tracking_writes);
+}
+
+kern_return_t
+memory_entry_access_tracking_internal(
+       ipc_port_t      entry_port,
+       int             *access_tracking,
+       uint32_t        *access_tracking_reads,
+       uint32_t        *access_tracking_writes)
+{
+       vm_named_entry_t        mem_entry;
+       vm_object_t             object;
+       kern_return_t           kr;
+
+       if (!IP_VALID(entry_port) ||
+           ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       mem_entry = (vm_named_entry_t) entry_port->ip_kobject;
+
+       named_entry_lock(mem_entry);
+
+       if (mem_entry->is_sub_map ||
+           mem_entry->is_copy) {
+               named_entry_unlock(mem_entry);
+               return KERN_INVALID_ARGUMENT;
+       }
+
+       object = mem_entry->backing.object;
+       if (object == VM_OBJECT_NULL) {
+               named_entry_unlock(mem_entry);
+               return KERN_INVALID_ARGUMENT;
+       }
+
+#if VM_OBJECT_ACCESS_TRACKING
+       vm_object_access_tracking(object,
+           access_tracking,
+           access_tracking_reads,
+           access_tracking_writes);
+       kr = KERN_SUCCESS;
+#else /* VM_OBJECT_ACCESS_TRACKING */
+       (void) access_tracking;
+       (void) access_tracking_reads;
+       (void) access_tracking_writes;
+       kr = KERN_NOT_SUPPORTED;
+#endif /* VM_OBJECT_ACCESS_TRACKING */
+
+       named_entry_unlock(mem_entry);
+
+       return kr;
+}
+
 kern_return_t
 mach_memory_entry_get_page_counts(
 kern_return_t
 mach_memory_entry_get_page_counts(
-       ipc_port_t      entry_port,
-       unsigned int    *resident_page_count,
-       unsigned int    *dirty_page_count)
+       ipc_port_t      entry_port,
+       unsigned int    *resident_page_count,
+       unsigned int    *dirty_page_count)
 {
 {
-       kern_return_t           kr;
-       vm_named_entry_t        mem_entry;
-       vm_object_t             object;
-       vm_object_offset_t      offset;
-       vm_object_size_t        size;
+       kern_return_t           kr;
+       vm_named_entry_t        mem_entry;
+       vm_object_t             object;
+       vm_object_offset_t      offset;
+       vm_object_size_t        size;
 
 
-       if (entry_port == IP_NULL ||
+       if (!IP_VALID(entry_port) ||
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
@@ -3508,7 +3787,7 @@ mach_memory_entry_get_page_counts(
  */
 void
 mach_memory_entry_port_release(
  */
 void
 mach_memory_entry_port_release(
-       ipc_port_t      port)
+       ipc_port_t      port)
 {
        assert(ip_kotype(port) == IKOT_NAMED_ENTRY);
        ipc_port_release_send(port);
 {
        assert(ip_kotype(port) == IKOT_NAMED_ENTRY);
        ipc_port_release_send(port);
@@ -3528,9 +3807,9 @@ mach_memory_entry_port_release(
  */
 void
 mach_destroy_memory_entry(
  */
 void
 mach_destroy_memory_entry(
-       ipc_port_t      port)
+       ipc_port_t      port)
 {
 {
-       vm_named_entry_t        named_entry;
+       vm_named_entry_t        named_entry;
 #if MACH_ASSERT
        assert(ip_kotype(port) == IKOT_NAMED_ENTRY);
 #endif /* MACH_ASSERT */
 #if MACH_ASSERT
        assert(ip_kotype(port) == IKOT_NAMED_ENTRY);
 #endif /* MACH_ASSERT */
@@ -3539,7 +3818,7 @@ mach_destroy_memory_entry(
        named_entry_lock(named_entry);
        named_entry->ref_count -= 1;
 
        named_entry_lock(named_entry);
        named_entry->ref_count -= 1;
 
-       if(named_entry->ref_count == 0) {
+       if (named_entry->ref_count == 0) {
                if (named_entry->is_sub_map) {
                        vm_map_deallocate(named_entry->backing.map);
                } else if (named_entry->is_copy) {
                if (named_entry->is_sub_map) {
                        vm_map_deallocate(named_entry->backing.map);
                } else if (named_entry->is_copy) {
@@ -3552,10 +3831,20 @@ mach_destroy_memory_entry(
                named_entry_unlock(named_entry);
                named_entry_lock_destroy(named_entry);
 
                named_entry_unlock(named_entry);
                named_entry_lock_destroy(named_entry);
 
-               kfree((void *) port->ip_kobject,
-                     sizeof (struct vm_named_entry));
-       } else
+#if VM_NAMED_ENTRY_LIST
+               lck_mtx_lock_spin(&vm_named_entry_list_lock_data);
+               queue_remove(&vm_named_entry_list, named_entry,
+                   vm_named_entry_t, named_entry_list);
+               assert(vm_named_entry_count > 0);
+               vm_named_entry_count--;
+               lck_mtx_unlock(&vm_named_entry_list_lock_data);
+#endif /* VM_NAMED_ENTRY_LIST */
+
+               kfree(port->ip_kobject,
+                   sizeof(struct vm_named_entry));
+       } else {
                named_entry_unlock(named_entry);
                named_entry_unlock(named_entry);
+       }
 }
 
 /* Allow manipulation of individual page state.  This is actually part of */
 }
 
 /* Allow manipulation of individual page state.  This is actually part of */
@@ -3563,17 +3852,17 @@ mach_destroy_memory_entry(
 
 kern_return_t
 mach_memory_entry_page_op(
 
 kern_return_t
 mach_memory_entry_page_op(
-       ipc_port_t              entry_port,
-       vm_object_offset_t      offset,
-       int                     ops,
-       ppnum_t                 *phys_entry,
-       int                     *flags)
+       ipc_port_t              entry_port,
+       vm_object_offset_t      offset,
+       int                     ops,
+       ppnum_t                 *phys_entry,
+       int                     *flags)
 {
 {
-       vm_named_entry_t        mem_entry;
-       vm_object_t             object;
-       kern_return_t           kr;
+       vm_named_entry_t        mem_entry;
+       vm_object_t             object;
+       kern_return_t           kr;
 
 
-       if (entry_port == IP_NULL ||
+       if (!IP_VALID(entry_port) ||
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
@@ -3599,34 +3888,34 @@ mach_memory_entry_page_op(
 
        kr = vm_object_page_op(object, offset, ops, phys_entry, flags);
 
 
        kr = vm_object_page_op(object, offset, ops, phys_entry, flags);
 
-       vm_object_deallocate(object);   
+       vm_object_deallocate(object);
 
        return kr;
 }
 
 /*
 
        return kr;
 }
 
 /*
- * mach_memory_entry_range_op offers performance enhancement over 
- * mach_memory_entry_page_op for page_op functions which do not require page 
- * level state to be returned from the call.  Page_op was created to provide 
- * a low-cost alternative to page manipulation via UPLs when only a single 
- * page was involved.  The range_op call establishes the ability in the _op 
+ * mach_memory_entry_range_op offers performance enhancement over
+ * mach_memory_entry_page_op for page_op functions which do not require page
+ * level state to be returned from the call.  Page_op was created to provide
+ * a low-cost alternative to page manipulation via UPLs when only a single
+ * page was involved.  The range_op call establishes the ability in the _op
  * family of functions to work on multiple pages where the lack of page level
  * state handling allows the caller to avoid the overhead of the upl structures.
  */
 
 kern_return_t
 mach_memory_entry_range_op(
  * family of functions to work on multiple pages where the lack of page level
  * state handling allows the caller to avoid the overhead of the upl structures.
  */
 
 kern_return_t
 mach_memory_entry_range_op(
-       ipc_port_t              entry_port,
-       vm_object_offset_t      offset_beg,
-       vm_object_offset_t      offset_end,
+       ipc_port_t              entry_port,
+       vm_object_offset_t      offset_beg,
+       vm_object_offset_t      offset_end,
        int                     ops,
        int                     *range)
 {
        int                     ops,
        int                     *range)
 {
-       vm_named_entry_t        mem_entry;
-       vm_object_t             object;
-       kern_return_t           kr;
+       vm_named_entry_t        mem_entry;
+       vm_object_t             object;
+       kern_return_t           kr;
 
 
-       if (entry_port == IP_NULL ||
+       if (!IP_VALID(entry_port) ||
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
            ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
                return KERN_INVALID_ARGUMENT;
        }
@@ -3651,10 +3940,10 @@ mach_memory_entry_range_op(
        named_entry_unlock(mem_entry);
 
        kr = vm_object_range_op(object,
        named_entry_unlock(mem_entry);
 
        kr = vm_object_range_op(object,
-                               offset_beg,
-                               offset_end,
-                               ops,
-                               (uint32_t *) range);
+           offset_beg,
+           offset_end,
+           ops,
+           (uint32_t *) range);
 
        vm_object_deallocate(object);
 
 
        vm_object_deallocate(object);
 
@@ -3675,15 +3964,15 @@ extern int kernel_upl_unmap(
 extern int kernel_upl_commit(
        upl_t                   upl,
        upl_page_info_t         *pl,
 extern int kernel_upl_commit(
        upl_t                   upl,
        upl_page_info_t         *pl,
-       mach_msg_type_number_t   count);
+       mach_msg_type_number_t   count);
 
 extern int kernel_upl_commit_range(
        upl_t                   upl,
        upl_offset_t             offset,
 
 extern int kernel_upl_commit_range(
        upl_t                   upl,
        upl_offset_t             offset,
-       upl_size_t              size,
-       int                     flags,
-       upl_page_info_array_t   pl,
-       mach_msg_type_number_t  count);
+       upl_size_t              size,
+       int                     flags,
+       upl_page_info_array_t   pl,
+       mach_msg_type_number_t  count);
 
 extern int kernel_upl_abort(
        upl_t                   upl,
 
 extern int kernel_upl_abort(
        upl_t                   upl,
@@ -3698,9 +3987,9 @@ extern int kernel_upl_abort_range(
 
 kern_return_t
 kernel_upl_map(
 
 kern_return_t
 kernel_upl_map(
-       vm_map_t        map,
-       upl_t           upl,
-       vm_offset_t     *dst_addr)
+       vm_map_t        map,
+       upl_t           upl,
+       vm_offset_t     *dst_addr)
 {
        return vm_upl_map(map, upl, dst_addr);
 }
 {
        return vm_upl_map(map, upl, dst_addr);
 }
@@ -3708,8 +3997,8 @@ kernel_upl_map(
 
 kern_return_t
 kernel_upl_unmap(
 
 kern_return_t
 kernel_upl_unmap(
-       vm_map_t        map,
-       upl_t           upl)
+       vm_map_t        map,
+       upl_t           upl)
 {
        return vm_upl_unmap(map, upl);
 }
 {
        return vm_upl_unmap(map, upl);
 }
@@ -3720,7 +4009,7 @@ kernel_upl_commit(
        upl_page_info_t        *pl,
        mach_msg_type_number_t  count)
 {
        upl_page_info_t        *pl,
        mach_msg_type_number_t  count)
 {
-       kern_return_t   kr;
+       kern_return_t   kr;
 
        kr = upl_commit(upl, pl, count);
        upl_deallocate(upl);
 
        kr = upl_commit(upl, pl, count);
        upl_deallocate(upl);
@@ -3730,18 +4019,19 @@ kernel_upl_commit(
 
 kern_return_t
 kernel_upl_commit_range(
 
 kern_return_t
 kernel_upl_commit_range(
-       upl_t                   upl,
-       upl_offset_t            offset,
-       upl_size_t              size,
-       int                     flags,
+       upl_t                   upl,
+       upl_offset_t            offset,
+       upl_size_t              size,
+       int                     flags,
        upl_page_info_array_t   pl,
        mach_msg_type_number_t  count)
 {
        upl_page_info_array_t   pl,
        mach_msg_type_number_t  count)
 {
-       boolean_t               finished = FALSE;
-       kern_return_t           kr;
+       boolean_t               finished = FALSE;
+       kern_return_t           kr;
 
 
-       if (flags & UPL_COMMIT_FREE_ON_EMPTY)
+       if (flags & UPL_COMMIT_FREE_ON_EMPTY) {
                flags |= UPL_COMMIT_NOTIFY_EMPTY;
                flags |= UPL_COMMIT_NOTIFY_EMPTY;
+       }
 
        if (flags & UPL_COMMIT_KERNEL_ONLY_FLAGS) {
                return KERN_INVALID_ARGUMENT;
 
        if (flags & UPL_COMMIT_KERNEL_ONLY_FLAGS) {
                return KERN_INVALID_ARGUMENT;
@@ -3749,39 +4039,42 @@ kernel_upl_commit_range(
 
        kr = upl_commit_range(upl, offset, size, flags, pl, count, &finished);
 
 
        kr = upl_commit_range(upl, offset, size, flags, pl, count, &finished);
 
-       if ((flags & UPL_COMMIT_NOTIFY_EMPTY) && finished)
+       if ((flags & UPL_COMMIT_NOTIFY_EMPTY) && finished) {
                upl_deallocate(upl);
                upl_deallocate(upl);
+       }
 
        return kr;
 }
 
        return kr;
 }
-       
+
 kern_return_t
 kernel_upl_abort_range(
 kern_return_t
 kernel_upl_abort_range(
-       upl_t                   upl,
-       upl_offset_t            offset,
-       upl_size_t              size,
-       int                     abort_flags)
+       upl_t                   upl,
+       upl_offset_t            offset,
+       upl_size_t              size,
+       int                     abort_flags)
 {
 {
-       kern_return_t           kr;
-       boolean_t               finished = FALSE;
+       kern_return_t           kr;
+       boolean_t               finished = FALSE;
 
 
-       if (abort_flags & UPL_COMMIT_FREE_ON_EMPTY)
+       if (abort_flags & UPL_COMMIT_FREE_ON_EMPTY) {
                abort_flags |= UPL_COMMIT_NOTIFY_EMPTY;
                abort_flags |= UPL_COMMIT_NOTIFY_EMPTY;
+       }
 
        kr = upl_abort_range(upl, offset, size, abort_flags, &finished);
 
 
        kr = upl_abort_range(upl, offset, size, abort_flags, &finished);
 
-       if ((abort_flags & UPL_COMMIT_FREE_ON_EMPTY) && finished)
+       if ((abort_flags & UPL_COMMIT_FREE_ON_EMPTY) && finished) {
                upl_deallocate(upl);
                upl_deallocate(upl);
+       }
 
        return kr;
 }
 
 kern_return_t
 kernel_upl_abort(
 
        return kr;
 }
 
 kern_return_t
 kernel_upl_abort(
-       upl_t                   upl,
-       int                     abort_type)
+       upl_t                   upl,
+       int                     abort_type)
 {
 {
-       kern_return_t   kr;
+       kern_return_t   kr;
 
        kr = upl_abort(upl, abort_type);
        upl_deallocate(upl);
 
        kr = upl_abort(upl, abort_type);
        upl_deallocate(upl);
@@ -3796,15 +4089,15 @@ kernel_upl_abort(
 
 kern_return_t
 vm_region_object_create(
 
 kern_return_t
 vm_region_object_create(
-       __unused vm_map_t       target_map,
-       vm_size_t               size,
-       ipc_port_t              *object_handle)
+       __unused vm_map_t       target_map,
+       vm_size_t               size,
+       ipc_port_t              *object_handle)
 {
 {
-       vm_named_entry_t        user_entry;
-       ipc_port_t              user_handle;
+       vm_named_entry_t        user_entry;
+       ipc_port_t              user_handle;
+
+       vm_map_t        new_map;
 
 
-       vm_map_t        new_map;
-       
        if (mach_memory_entry_allocate(&user_entry, &user_handle)
            != KERN_SUCCESS) {
                return KERN_FAILURE;
        if (mach_memory_entry_allocate(&user_entry, &user_handle)
            != KERN_SUCCESS) {
                return KERN_FAILURE;
@@ -3813,9 +4106,9 @@ vm_region_object_create(
        /* Create a named object based on a submap of specified size */
 
        new_map = vm_map_create(PMAP_NULL, VM_MAP_MIN_ADDRESS,
        /* Create a named object based on a submap of specified size */
 
        new_map = vm_map_create(PMAP_NULL, VM_MAP_MIN_ADDRESS,
-                               vm_map_round_page(size,
-                                                 VM_MAP_PAGE_MASK(target_map)),
-                               TRUE);
+           vm_map_round_page(size,
+           VM_MAP_PAGE_MASK(target_map)),
+           TRUE);
        vm_map_set_page_shift(new_map, VM_MAP_PAGE_SHIFT(target_map));
 
        user_entry->backing.map = new_map;
        vm_map_set_page_shift(new_map, VM_MAP_PAGE_SHIFT(target_map));
 
        user_entry->backing.map = new_map;
@@ -3828,40 +4121,38 @@ vm_region_object_create(
 
        *object_handle = user_handle;
        return KERN_SUCCESS;
 
        *object_handle = user_handle;
        return KERN_SUCCESS;
-
 }
 
 }
 
-ppnum_t vm_map_get_phys_page(          /* forward */
-       vm_map_t        map,
-       vm_offset_t     offset);
+ppnum_t vm_map_get_phys_page(           /* forward */
+       vm_map_t        map,
+       vm_offset_t     offset);
 
 ppnum_t
 vm_map_get_phys_page(
 
 ppnum_t
 vm_map_get_phys_page(
-       vm_map_t                map,
-       vm_offset_t             addr)
+       vm_map_t                map,
+       vm_offset_t             addr)
 {
 {
-       vm_object_offset_t      offset;
-       vm_object_t             object;
-       vm_map_offset_t         map_offset;
-       vm_map_entry_t          entry;
-       ppnum_t                 phys_page = 0;
+       vm_object_offset_t      offset;
+       vm_object_t             object;
+       vm_map_offset_t         map_offset;
+       vm_map_entry_t          entry;
+       ppnum_t                 phys_page = 0;
 
        map_offset = vm_map_trunc_page(addr, PAGE_MASK);
 
        vm_map_lock(map);
        while (vm_map_lookup_entry(map, map_offset, &entry)) {
 
        map_offset = vm_map_trunc_page(addr, PAGE_MASK);
 
        vm_map_lock(map);
        while (vm_map_lookup_entry(map, map_offset, &entry)) {
-
                if (VME_OBJECT(entry) == VM_OBJECT_NULL) {
                        vm_map_unlock(map);
                        return (ppnum_t) 0;
                }
                if (entry->is_sub_map) {
                if (VME_OBJECT(entry) == VM_OBJECT_NULL) {
                        vm_map_unlock(map);
                        return (ppnum_t) 0;
                }
                if (entry->is_sub_map) {
-                       vm_map_t        old_map;
+                       vm_map_t        old_map;
                        vm_map_lock(VME_SUBMAP(entry));
                        old_map = map;
                        map = VME_SUBMAP(entry);
                        map_offset = (VME_OFFSET(entry) +
                        vm_map_lock(VME_SUBMAP(entry));
                        old_map = map;
                        map = VME_SUBMAP(entry);
                        map_offset = (VME_OFFSET(entry) +
-                                     (map_offset - entry->vme_start));
+                           (map_offset - entry->vme_start));
                        vm_map_unlock(old_map);
                        continue;
                }
                        vm_map_unlock(old_map);
                        continue;
                }
@@ -3873,27 +4164,26 @@ vm_map_get_phys_page(
                        if (VME_OBJECT(entry)->vo_shadow_offset == 0) {
                                /* need to call vm_fault */
                                vm_map_unlock(map);
                        if (VME_OBJECT(entry)->vo_shadow_offset == 0) {
                                /* need to call vm_fault */
                                vm_map_unlock(map);
-                               vm_fault(map, map_offset, VM_PROT_NONE, 
-                                       FALSE /* change_wiring */, VM_KERN_MEMORY_NONE,
-                                       THREAD_UNINT, NULL, 0);
+                               vm_fault(map, map_offset, VM_PROT_NONE,
+                                   FALSE /* change_wiring */, VM_KERN_MEMORY_NONE,
+                                   THREAD_UNINT, NULL, 0);
                                vm_map_lock(map);
                                continue;
                        }
                        offset = (VME_OFFSET(entry) +
                                vm_map_lock(map);
                                continue;
                        }
                        offset = (VME_OFFSET(entry) +
-                                 (map_offset - entry->vme_start));
+                           (map_offset - entry->vme_start));
                        phys_page = (ppnum_t)
                        phys_page = (ppnum_t)
-                               ((VME_OBJECT(entry)->vo_shadow_offset 
-                                 + offset) >> PAGE_SHIFT);
+                           ((VME_OBJECT(entry)->vo_shadow_offset
+                           + offset) >> PAGE_SHIFT);
                        break;
                        break;
-                       
                }
                offset = (VME_OFFSET(entry) + (map_offset - entry->vme_start));
                object = VME_OBJECT(entry);
                vm_object_lock(object);
                while (TRUE) {
                }
                offset = (VME_OFFSET(entry) + (map_offset - entry->vme_start));
                object = VME_OBJECT(entry);
                vm_object_lock(object);
                while (TRUE) {
-                       vm_page_t dst_page = vm_page_lookup(object,offset);
-                       if(dst_page == VM_PAGE_NULL) {
-                               if(object->shadow) {
+                       vm_page_t dst_page = vm_page_lookup(object, offset);
+                       if (dst_page == VM_PAGE_NULL) {
+                               if (object->shadow) {
                                        vm_object_t old_object;
                                        vm_object_lock(object->shadow);
                                        old_object = object;
                                        vm_object_t old_object;
                                        vm_object_lock(object->shadow);
                                        old_object = object;
@@ -3911,37 +4201,36 @@ vm_map_get_phys_page(
                        }
                }
                break;
                        }
                }
                break;
-
-       } 
+       }
 
        vm_map_unlock(map);
        return phys_page;
 }
 
 #if 0
 
        vm_map_unlock(map);
        return phys_page;
 }
 
 #if 0
-kern_return_t kernel_object_iopl_request(      /* forward */
-       vm_named_entry_t        named_entry,
-       memory_object_offset_t  offset,
-       upl_size_t              *upl_size,
-       upl_t                   *upl_ptr,
-       upl_page_info_array_t   user_page_list,
-       unsigned int            *page_list_count,
-       int                     *flags);
+kern_return_t kernel_object_iopl_request(       /* forward */
+       vm_named_entry_t        named_entry,
+       memory_object_offset_t  offset,
+       upl_size_t              *upl_size,
+       upl_t                   *upl_ptr,
+       upl_page_info_array_t   user_page_list,
+       unsigned int            *page_list_count,
+       int                     *flags);
 
 kern_return_t
 kernel_object_iopl_request(
 
 kern_return_t
 kernel_object_iopl_request(
-       vm_named_entry_t        named_entry,
-       memory_object_offset_t  offset,
-       upl_size_t              *upl_size,
-       upl_t                   *upl_ptr,
-       upl_page_info_array_t   user_page_list,
-       unsigned int            *page_list_count,
-       int                     *flags)
+       vm_named_entry_t        named_entry,
+       memory_object_offset_t  offset,
+       upl_size_t              *upl_size,
+       upl_t                   *upl_ptr,
+       upl_page_info_array_t   user_page_list,
+       unsigned int            *page_list_count,
+       int                     *flags)
 {
 {
-       vm_object_t             object;
-       kern_return_t           ret;
+       vm_object_t             object;
+       kern_return_t           ret;
 
 
-       int                     caller_flags;
+       int                     caller_flags;
 
        caller_flags = *flags;
 
 
        caller_flags = *flags;
 
@@ -3954,36 +4243,40 @@ kernel_object_iopl_request(
        }
 
        /* a few checks to make sure user is obeying rules */
        }
 
        /* a few checks to make sure user is obeying rules */
-       if(*upl_size == 0) {
-               if(offset >= named_entry->size)
-                       return(KERN_INVALID_RIGHT);
+       if (*upl_size == 0) {
+               if (offset >= named_entry->size) {
+                       return KERN_INVALID_RIGHT;
+               }
                *upl_size = (upl_size_t) (named_entry->size - offset);
                *upl_size = (upl_size_t) (named_entry->size - offset);
-               if (*upl_size != named_entry->size - offset)
+               if (*upl_size != named_entry->size - offset) {
                        return KERN_INVALID_ARGUMENT;
                        return KERN_INVALID_ARGUMENT;
+               }
        }
        }
-       if(caller_flags & UPL_COPYOUT_FROM) {
-               if((named_entry->protection & VM_PROT_READ) 
-                                       != VM_PROT_READ) {
-                       return(KERN_INVALID_RIGHT);
+       if (caller_flags & UPL_COPYOUT_FROM) {
+               if ((named_entry->protection & VM_PROT_READ)
+                   != VM_PROT_READ) {
+                       return KERN_INVALID_RIGHT;
                }
        } else {
                }
        } else {
-               if((named_entry->protection & 
-                       (VM_PROT_READ | VM_PROT_WRITE)) 
-                       != (VM_PROT_READ | VM_PROT_WRITE)) {
-                       return(KERN_INVALID_RIGHT);
+               if ((named_entry->protection &
+                   (VM_PROT_READ | VM_PROT_WRITE))
+                   != (VM_PROT_READ | VM_PROT_WRITE)) {
+                       return KERN_INVALID_RIGHT;
                }
        }
                }
        }
-       if(named_entry->size < (offset + *upl_size))
-               return(KERN_INVALID_ARGUMENT);
+       if (named_entry->size < (offset + *upl_size)) {
+               return KERN_INVALID_ARGUMENT;
+       }
 
        /* the callers parameter offset is defined to be the */
        /* offset from beginning of named entry offset in object */
        offset = offset + named_entry->offset;
 
        if (named_entry->is_sub_map ||
 
        /* the callers parameter offset is defined to be the */
        /* offset from beginning of named entry offset in object */
        offset = offset + named_entry->offset;
 
        if (named_entry->is_sub_map ||
-           named_entry->is_copy)
+           named_entry->is_copy) {
                return KERN_INVALID_ARGUMENT;
                return KERN_INVALID_ARGUMENT;
-               
+       }
+
        named_entry_lock(named_entry);
 
        /* This is the case where we are going to operate */
        named_entry_lock(named_entry);
 
        /* This is the case where we are going to operate */
@@ -3997,8 +4290,9 @@ kernel_object_iopl_request(
        named_entry_unlock(named_entry);
 
        if (!object->private) {
        named_entry_unlock(named_entry);
 
        if (!object->private) {
-               if (*upl_size > MAX_UPL_TRANSFER_BYTES)
+               if (*upl_size > MAX_UPL_TRANSFER_BYTES) {
                        *upl_size = MAX_UPL_TRANSFER_BYTES;
                        *upl_size = MAX_UPL_TRANSFER_BYTES;
+               }
                if (object->phys_contiguous) {
                        *flags = UPL_PHYS_CONTIG;
                } else {
                if (object->phys_contiguous) {
                        *flags = UPL_PHYS_CONTIG;
                } else {
@@ -4009,12 +4303,12 @@ kernel_object_iopl_request(
        }
 
        ret = vm_object_iopl_request(object,
        }
 
        ret = vm_object_iopl_request(object,
-                                    offset,
-                                    *upl_size,
-                                    upl_ptr,
-                                    user_page_list,
-                                    page_list_count,
-                                    (upl_control_flags_t)(unsigned int)caller_flags);
+           offset,
+           *upl_size,
+           upl_ptr,
+           user_page_list,
+           page_list_count,
+           (upl_control_flags_t)(unsigned int)caller_flags);
        vm_object_deallocate(object);
        return ret;
 }
        vm_object_deallocate(object);
        return ret;
 }
@@ -4029,100 +4323,103 @@ kernel_object_iopl_request(
 
 kern_return_t
 mach_vm_map(
 
 kern_return_t
 mach_vm_map(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  initial_size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance);
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  initial_size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance);
 
 kern_return_t
 mach_vm_remap(
 
 kern_return_t
 mach_vm_remap(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       vm_map_t                src_map,
-       mach_vm_offset_t        memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance);
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       vm_map_t                src_map,
+       mach_vm_offset_t        memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance);
 
 kern_return_t
 mach_vm_map(
 
 kern_return_t
 mach_vm_map(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  initial_size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_object_offset_t      offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  initial_size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_object_offset_t      offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
 {
-       return (mach_vm_map_external(target_map, address, initial_size, mask, flags, port,
-                                       offset, copy, cur_protection, max_protection, inheritance));
+       return mach_vm_map_external(target_map, address, initial_size, mask, flags, port,
+                  offset, copy, cur_protection, max_protection, inheritance);
 }
 
 kern_return_t
 mach_vm_remap(
 }
 
 kern_return_t
 mach_vm_remap(
-       vm_map_t                target_map,
-       mach_vm_offset_t        *address,
-       mach_vm_size_t  size,
-       mach_vm_offset_t        mask,
-       int                     flags,
-       vm_map_t                src_map,
-       mach_vm_offset_t        memory_address,
-       boolean_t               copy,
-       vm_prot_t               *cur_protection,
-       vm_prot_t               *max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       mach_vm_offset_t        *address,
+       mach_vm_size_t  size,
+       mach_vm_offset_t        mask,
+       int                     flags,
+       vm_map_t                src_map,
+       mach_vm_offset_t        memory_address,
+       boolean_t               copy,
+       vm_prot_t               *cur_protection,
+       vm_prot_t               *max_protection,
+       vm_inherit_t            inheritance)
 {
 {
-       return (mach_vm_remap_external(target_map, address, size, mask, flags, src_map, memory_address,
-                                       copy, cur_protection, max_protection, inheritance));
+       return mach_vm_remap_external(target_map, address, size, mask, flags, src_map, memory_address,
+                  copy, cur_protection, max_protection, inheritance);
 }
 
 kern_return_t
 vm_map(
 }
 
 kern_return_t
 vm_map(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_offset_t             offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance);
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_offset_t             offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance);
 
 kern_return_t
 vm_map(
 
 kern_return_t
 vm_map(
-       vm_map_t                target_map,
-       vm_offset_t             *address,
-       vm_size_t               size,
-       vm_offset_t             mask,
-       int                     flags,
-       ipc_port_t              port,
-       vm_offset_t             offset,
-       boolean_t               copy,
-       vm_prot_t               cur_protection,
-       vm_prot_t               max_protection,
-       vm_inherit_t            inheritance)
+       vm_map_t                target_map,
+       vm_offset_t             *address,
+       vm_size_t               size,
+       vm_offset_t             mask,
+       int                     flags,
+       ipc_port_t              port,
+       vm_offset_t             offset,
+       boolean_t               copy,
+       vm_prot_t               cur_protection,
+       vm_prot_t               max_protection,
+       vm_inherit_t            inheritance)
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
 {
        vm_tag_t tag;
 
        VM_GET_FLAGS_ALIAS(flags, tag);
-       return (vm_map_kernel(target_map, address, size, mask, flags, tag,  port, offset, copy, cur_protection, max_protection, inheritance));
+       return vm_map_kernel(target_map, address, size, mask,
+                  flags, VM_MAP_KERNEL_FLAGS_NONE, tag,
+                  port, offset, copy,
+                  cur_protection, max_protection, inheritance);
 }
 
 #endif /* __x86_64__ */
 }
 
 #endif /* __x86_64__ */
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