/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
extern void vm_map_reference(vm_map_t map);
extern vm_map_t current_map(void);
+/* Setup reserved areas in a new VM map */
+extern kern_return_t vm_map_exec(
+ vm_map_t new_map,
+ task_t task,
+ void *fsroot,
+ cpu_type_t cpu);
+
__END_DECLS
#ifdef MACH_KERNEL_PRIVATE
/* vm_inherit_t */ inheritance:2, /* inheritance */
/* boolean_t */ use_pmap:1, /* nested pmaps */
/* unsigned char */ alias:8, /* user alias */
- /* unsigned char */ pad:8; /* available bits */
+ /* boolean_t */ no_cache:1, /* should new pages be cached? */
+ /* unsigned char */ pad:7; /* available bits */
unsigned short wired_count; /* can be paged if = 0 */
unsigned short user_wired_count; /* for vm_wire */
};
* insertion, or removal. Another hint is used to
* quickly find free space.
*/
-struct vm_map {
+struct _vm_map {
lock_t lock; /* uni- and smp-lock */
struct vm_map_header hdr; /* Map entry header */
#define min_offset hdr.links.start /* start of range */
#define max_offset hdr.links.end /* end of range */
pmap_t pmap; /* Physical map */
vm_map_size_t size; /* virtual size */
+ vm_map_size_t user_wire_limit;/* rlimit on user locked memory */
+ vm_map_size_t user_wire_size; /* current size of user locked memory in this map */
int ref_count; /* Reference count */
#if TASK_SWAPPER
int res_count; /* Residence count (swap) */
int sw_state; /* Swap state */
#endif /* TASK_SWAPPER */
- decl_mutex_data(, s_lock) /* Lock ref, res, hint fields */
+ decl_mutex_data(, s_lock) /* Lock ref, res fields */
vm_map_entry_t hint; /* hint for quick lookups */
vm_map_entry_t first_free; /* First free space hint */
boolean_t wait_for_space; /* Should callers wait
boolean_t no_zero_fill; /* No zero fill absent pages */
boolean_t mapped; /* has this map been mapped */
unsigned int timestamp; /* Version number */
+ unsigned int color_rr; /* next color (not protected by a lock) */
} ;
#define vm_map_to_entry(map) ((struct vm_map_entry *) &(map)->hdr.links)
#define vm_map_unlock_read(map) lock_read_done(&(map)->lock)
#define vm_map_lock_write_to_read(map) \
((map)->timestamp++ , lock_write_to_read(&(map)->lock))
-#define vm_map_lock_read_to_write(map) lock_read_to_write(&(map)->lock)
+/* lock_read_to_write() returns FALSE on failure. Macro evaluates to
+ * zero on success and non-zero value on failure.
+ */
+#define vm_map_lock_read_to_write(map) (lock_read_to_write(&(map)->lock) != TRUE)
/*
* Exported procedures that operate on vm_map_t.
*/
/* Initialize the module */
-extern void vm_map_init(void);
+extern void vm_map_init(void) __attribute__((section("__TEXT, initcode")));
/* Allocate a range in the specified virtual address map and
* return the entry allocated for that range. */
vm_map_t *var_map, /* IN/OUT */
vm_map_address_t vaddr,
vm_prot_t fault_type,
+ int object_lock_type,
vm_map_version_t *out_version, /* OUT */
vm_object_t *object, /* OUT */
vm_object_offset_t *offset, /* OUT */
vm_prot_t *out_prot, /* OUT */
boolean_t *wired, /* OUT */
- int *behavior, /* OUT */
- vm_map_offset_t *lo_offset, /* OUT */
- vm_map_offset_t *hi_offset, /* OUT */
+ vm_object_fault_info_t fault_info, /* OUT */
vm_map_t *real_map); /* OUT */
/* Verifies that the map has not changed since the given version. */
vm_prot_t max_protection,
vm_behavior_t behavior,
vm_inherit_t inheritance,
- unsigned wired_count);
+ unsigned wired_count,
+ boolean_t no_cache);
/*
ipc_port_t port);
+/* definitions related to overriding the NX behavior */
+
+#define VM_ABI_32 0x1
+#define VM_ABI_64 0x2
+
+extern int override_nx(vm_map_t map, uint32_t user_tag);
+
#endif /* MACH_KERNEL_PRIVATE */
__BEGIN_DECLS
/* Get rid of a map */
extern void vm_map_destroy(
- vm_map_t map);
+ vm_map_t map,
+ int flags);
+
/* Lose a reference */
extern void vm_map_deallocate(
vm_map_t map);
vm_map_offset_t end,
boolean_t user_wire);
+/* Enter a mapping of a memory object */
+extern kern_return_t vm_map_enter_mem_object(
+ vm_map_t map,
+ vm_map_offset_t *address,
+ vm_map_size_t size,
+ vm_map_offset_t mask,
+ int flags,
+ ipc_port_t port,
+ vm_object_offset_t offset,
+ boolean_t needs_copy,
+ vm_prot_t cur_protection,
+ vm_prot_t max_protection,
+ vm_inherit_t inheritance);
+
/* Deallocate a region */
extern kern_return_t vm_map_remove(
vm_map_t map,
vm_map_address_t *dst_addr, /* OUT */
vm_map_copy_t copy);
+extern kern_return_t vm_map_copyin(
+ vm_map_t src_map,
+ vm_map_address_t src_addr,
+ vm_map_size_t len,
+ boolean_t src_destroy,
+ vm_map_copy_t *copy_result); /* OUT */
+
extern kern_return_t vm_map_copyin_common(
vm_map_t src_map,
vm_map_address_t src_addr,
extern void vm_map_set_32bit(
vm_map_t map);
+extern boolean_t vm_map_is_64bit(
+ vm_map_t map);
+
extern boolean_t vm_map_has_4GB_pagezero(
vm_map_t map);
extern vm_map_offset_t vm_compute_max_offset(
unsigned is64);
+extern void vm_map_set_user_wire_limit(
+ vm_map_t map,
+ vm_size_t limit);
+
+#ifdef MACH_KERNEL_PRIVATE
+
/*
* Macros to invoke vm_map_copyin_common. vm_map_copyin is the
* usual form; it handles a copyin based on the current protection
vm_map_copyin_common(src_map, src_addr, len, src_destroy, \
FALSE, copy_result, TRUE)
+#endif /* MACH_KERNEL_PRIVATE */
+
/*
* Macros for rounding and truncation of vm_map offsets and sizes
*/
#define VM_MAP_REMOVE_INTERRUPTIBLE 0x2
#define VM_MAP_REMOVE_WAIT_FOR_KWIRE 0x4
#define VM_MAP_REMOVE_SAVE_ENTRIES 0x8
-
-/* Support for shared regions */
-extern kern_return_t vm_region_clone(
- ipc_port_t src_region,
- ipc_port_t dst_region);
-
-extern kern_return_t vm_map_region_replace(
- vm_map_t target_map,
- ipc_port_t old_region,
- ipc_port_t new_region,
- vm_map_offset_t start,
- vm_map_offset_t end);
+#define VM_MAP_REMOVE_NO_PMAP_CLEANUP 0x10
/* Support for UPLs from vm_maps */
projects / apple / xnu.git / blobdiff