#ifndef _VM_VM_MAP_H_
#define _VM_VM_MAP_H_
#include <mach/mach_types.h>
#include <mach/kern_return.h>
#include <mach/boolean.h>
#include <mach/vm_types.h>
#include <mach/vm_prot.h>
#include <mach/vm_inherit.h>
#include <mach/vm_behavior.h>
#include <vm/pmap.h>
#include <sys/appleapiopts.h>
#ifdef __APPLE_API_PRIVATE
#ifndef MACH_KERNEL_PRIVATE
#ifdef __APPLE_API_OBSOLETE
extern void kernel_vm_map_reference(vm_map_t map);
#endif
extern void vm_map_reference(vm_map_t map);
extern vm_map_t current_map(void);
#else
#include <cpus.h>
#include <task_swapper.h>
#include <mach_assert.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <kern/lock.h>
#include <kern/zalloc.h>
#include <kern/macro_help.h>
#include <kern/thread_act.h>
#define current_map_fast() (current_act_fast()->map)
#define current_map() (current_map_fast())
typedef struct vm_map_entry *vm_map_entry_t;
typedef union vm_map_object {
struct vm_object *vm_object;
struct vm_map *sub_map;
} vm_map_object_t;
#define named_entry_lock_init(object) mutex_init(&(object)->Lock, ETAP_VM_OBJ)
#define named_entry_lock(object) mutex_lock(&(object)->Lock)
#define named_entry_unlock(object) mutex_unlock(&(object)->Lock)
struct vm_named_entry {
decl_mutex_data(, Lock)
vm_object_t object;
vm_object_offset_t offset;
union {
memory_object_t pager;
vm_map_t map;
} backing;
unsigned int size;
unsigned int protection;
int ref_count;
unsigned int
internal:1,
is_sub_map:1;
};
struct vm_map_links {
struct vm_map_entry *prev;
struct vm_map_entry *next;
vm_offset_t start;
vm_offset_t end;
};
struct vm_map_entry {
struct vm_map_links links;
#define vme_prev links.prev
#define vme_next links.next
#define vme_start links.start
#define vme_end links.end
union vm_map_object object;
vm_object_offset_t offset;
unsigned int
is_shared:1,
is_sub_map:1,
in_transition:1,
needs_wakeup:1,
behavior:2,
needs_copy:1,
protection:3,
max_protection:3,
inheritance:2,
use_pmap:1,
alias:8;
unsigned short wired_count;
unsigned short user_wired_count;
};
#define MAX_WIRE_COUNT 65535
struct vm_map_header {
struct vm_map_links links;
int nentries;
boolean_t entries_pageable;
};
struct vm_map {
lock_t lock;
struct vm_map_header hdr;
#define min_offset hdr.links.start
#define max_offset hdr.links.end
pmap_t pmap;
vm_size_t size;
int ref_count;
#if TASK_SWAPPER
int res_count;
int sw_state;
#endif
decl_mutex_data(, s_lock)
vm_map_entry_t hint;
vm_map_entry_t first_free;
boolean_t wait_for_space;
boolean_t wiring_required;
boolean_t no_zero_fill;
boolean_t mapped;
unsigned int timestamp;
} ;
#define vm_map_to_entry(map) ((struct vm_map_entry *) &(map)->hdr.links)
#define vm_map_first_entry(map) ((map)->hdr.links.next)
#define vm_map_last_entry(map) ((map)->hdr.links.prev)
#if TASK_SWAPPER
#define MAP_SW_IN 1
#define MAP_SW_OUT 2
#endif
typedef struct vm_map_version {
unsigned int main_timestamp;
} vm_map_version_t;
#define VM_MAP_COPY_PAGE_LIST_MAX 20
#define VM_MAP_COPY_PAGE_LIST_MAX_SIZE (VM_MAP_COPY_PAGE_LIST_MAX * PAGE_SIZE)
#define VM_MAP_COPYIN_OPT_VM_PROT 0x7
#define VM_MAP_COPYIN_OPT_SRC_DESTROY 0x8
#define VM_MAP_COPYIN_OPT_STEAL_PAGES 0x10
#define VM_MAP_COPYIN_OPT_PMAP_ENTER 0x20
#define VM_MAP_COPYIN_OPT_NO_ZERO_FILL 0x40
typedef struct {
vm_map_t map;
vm_offset_t src_addr;
vm_size_t src_len;
vm_offset_t destroy_addr;
vm_size_t destroy_len;
int options;
} vm_map_copyin_args_data_t, *vm_map_copyin_args_t;
#define VM_MAP_COPYIN_ARGS_NULL ((vm_map_copyin_args_t) 0)
typedef kern_return_t (*vm_map_copy_cont_t)(
vm_map_copyin_args_t,
vm_map_copy_t *);
#define VM_MAP_COPY_CONT_NULL ((vm_map_copy_cont_t) 0)
struct vm_map_copy {
int type;
#define VM_MAP_COPY_ENTRY_LIST 1
#define VM_MAP_COPY_OBJECT 2
#define VM_MAP_COPY_KERNEL_BUFFER 3
vm_object_offset_t offset;
vm_size_t size;
union {
struct vm_map_header hdr;
struct {
vm_object_t object;
vm_size_t index;
} c_o;
struct {
vm_offset_t kdata;
vm_size_t kalloc_size;
} c_k;
} c_u;
};
#define cpy_hdr c_u.hdr
#define cpy_object c_u.c_o.object
#define cpy_index c_u.c_o.index
#define cpy_kdata c_u.c_k.kdata
#define cpy_kalloc_size c_u.c_k.kalloc_size
#define vm_map_copy_to_entry(copy) \
((struct vm_map_entry *) &(copy)->cpy_hdr.links)
#define vm_map_copy_first_entry(copy) \
((copy)->cpy_hdr.links.next)
#define vm_map_copy_last_entry(copy) \
((copy)->cpy_hdr.links.prev)
#define vm_map_lock_init(map) \
((map)->timestamp = 0 , \
lock_init(&(map)->lock, TRUE, ETAP_VM_MAP, ETAP_VM_MAP_I))
#define vm_map_lock(map) lock_write(&(map)->lock)
#define vm_map_unlock(map) \
((map)->timestamp++ , lock_write_done(&(map)->lock))
#define vm_map_lock_read(map) lock_read(&(map)->lock)
#define vm_map_unlock_read(map) lock_read_done(&(map)->lock)
#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)
extern zone_t vm_map_copy_zone;
extern void vm_map_init(void);
extern kern_return_t vm_map_find_space(
vm_map_t map,
vm_offset_t *address,
vm_size_t size,
vm_offset_t mask,
vm_map_entry_t *o_entry);
extern boolean_t vm_map_lookup_entry(
vm_map_t map,
vm_offset_t address,
vm_map_entry_t *entry);
extern kern_return_t vm_map_lookup_locked(
vm_map_t *var_map,
vm_offset_t vaddr,
vm_prot_t fault_type,
vm_map_version_t *out_version,
vm_object_t *object,
vm_object_offset_t *offset,
vm_prot_t *out_prot,
boolean_t *wired,
int *behavior,
vm_object_offset_t *lo_offset,
vm_object_offset_t *hi_offset,
vm_map_t *pmap_map);
extern boolean_t vm_map_verify(
vm_map_t map,
vm_map_version_t *version);
extern void _vm_map_clip_start(
struct vm_map_header *map_header,
vm_map_entry_t entry,
vm_offset_t start);
extern vm_map_entry_t vm_map_entry_insert(
vm_map_t map,
vm_map_entry_t insp_entry,
vm_offset_t start,
vm_offset_t end,
vm_object_t object,
vm_object_offset_t offset,
boolean_t needs_copy,
boolean_t is_shared,
boolean_t in_transition,
vm_prot_t cur_protection,
vm_prot_t max_protection,
vm_behavior_t behavior,
vm_inherit_t inheritance,
unsigned wired_count);
extern kern_return_t vm_remap_extract(
vm_map_t map,
vm_offset_t addr,
vm_size_t size,
boolean_t copy,
struct vm_map_header *map_header,
vm_prot_t *cur_protection,
vm_prot_t *max_protection,
vm_inherit_t inheritance,
boolean_t pageable);
extern kern_return_t vm_remap_range_allocate(
vm_map_t map,
vm_offset_t *address,
vm_size_t size,
vm_offset_t mask,
boolean_t anywhere,
vm_map_entry_t *map_entry);
extern kern_return_t vm_remap_extract(
vm_map_t map,
vm_offset_t addr,
vm_size_t size,
boolean_t copy,
struct vm_map_header *map_header,
vm_prot_t *cur_protection,
vm_prot_t *max_protection,
vm_inherit_t inheritance,
boolean_t pageable);
extern kern_return_t vm_remap_range_allocate(
vm_map_t map,
vm_offset_t *address,
vm_size_t size,
vm_offset_t mask,
boolean_t anywhere,
vm_map_entry_t *map_entry);
#define vm_map_min(map) ((map)->min_offset)
#define vm_map_max(map) ((map)->max_offset)
#define vm_map_pmap(map) ((map)->pmap)
#define vm_map_verify_done(map, version) vm_map_unlock_read(map)
#if TASK_SWAPPER
#if MACH_ASSERT
extern void vm_map_reference(
vm_map_t map);
extern void vm_map_res_deallocate(
vm_map_t map);
extern void vm_map_res_reference(
vm_map_t map);
extern void vm_map_reference_swap(
vm_map_t map);
#else
#define vm_map_reference(map) \
MACRO_BEGIN \
vm_map_t Map = (map); \
if (Map) { \
mutex_lock(&Map->s_lock); \
Map->res_count++; \
Map->ref_count++; \
mutex_unlock(&Map->s_lock); \
} \
MACRO_END
#define vm_map_res_reference(map) \
MACRO_BEGIN \
vm_map_t Lmap = (map); \
if (Lmap->res_count == 0) { \
mutex_unlock(&Lmap->s_lock); \
vm_map_lock(Lmap); \
vm_map_swapin(Lmap); \
mutex_lock(&Lmap->s_lock); \
++Lmap->res_count; \
vm_map_unlock(Lmap); \
} else \
++Lmap->res_count; \
MACRO_END
#define vm_map_res_deallocate(map) \
MACRO_BEGIN \
vm_map_t Map = (map); \
if (--Map->res_count == 0) { \
mutex_unlock(&Map->s_lock); \
vm_map_lock(Map); \
vm_map_swapout(Map); \
vm_map_unlock(Map); \
mutex_lock(&Map->s_lock); \
} \
MACRO_END
#define vm_map_reference_swap(map) \
MACRO_BEGIN \
vm_map_t Map = (map); \
mutex_lock(&Map->s_lock); \
++Map->ref_count; \
vm_map_res_reference(Map); \
mutex_unlock(&Map->s_lock); \
MACRO_END
#endif
extern void vm_map_swapin(
vm_map_t map);
extern void vm_map_swapout(
vm_map_t map);
#else
#define vm_map_reference(map) \
MACRO_BEGIN \
vm_map_t Map = (map); \
if (Map) { \
mutex_lock(&Map->s_lock); \
Map->ref_count++; \
mutex_unlock(&Map->s_lock); \
} \
MACRO_END
#define vm_map_reference_swap(map) vm_map_reference(map)
#define vm_map_res_reference(map)
#define vm_map_res_deallocate(map)
#endif
extern vm_object_t vm_submap_object;
#define vm_map_entry_wait(map, interruptible) \
((map)->timestamp++ , \
thread_sleep_lock_write((event_t)&(map)->hdr, \
&(map)->lock, interruptible))
#define vm_map_entry_wakeup(map) thread_wakeup((event_t)(&(map)->hdr))
#define vm_map_ref_fast(map) \
MACRO_BEGIN \
mutex_lock(&map->s_lock); \
map->ref_count++; \
vm_map_res_reference(map); \
mutex_unlock(&map->s_lock); \
MACRO_END
#define vm_map_dealloc_fast(map) \
MACRO_BEGIN \
register int c; \
\
mutex_lock(&map->s_lock); \
c = --map->ref_count; \
if (c > 0) \
vm_map_res_deallocate(map); \
mutex_unlock(&map->s_lock); \
if (c == 0) \
vm_map_destroy(map); \
MACRO_END
extern void vm_map_simplify(
vm_map_t map,
vm_offset_t start);
extern void vm_map_copy_steal_pages(
vm_map_copy_t copy);
extern void vm_map_copy_discard(
vm_map_copy_t copy);
extern vm_map_copy_t vm_map_copy_copy(
vm_map_copy_t copy);
extern kern_return_t vm_map_copy_overwrite(
vm_map_t dst_map,
vm_offset_t dst_addr,
vm_map_copy_t copy,
int interruptible);
extern kern_return_t vm_map_copyin_object(
vm_object_t object,
vm_object_offset_t offset,
vm_object_size_t size,
vm_map_copy_t *copy_result);
extern vm_map_t vm_map_switch(
vm_map_t map);
extern int vm_map_copy_cont_is_valid(
vm_map_copy_t copy);
#define VM_MAP_ENTRY_NULL ((vm_map_entry_t) 0)
extern kern_return_t vm_map_enter(
vm_map_t map,
vm_offset_t *address,
vm_size_t size,
vm_offset_t mask,
int flags,
vm_object_t object,
vm_object_offset_t offset,
boolean_t needs_copy,
vm_prot_t cur_protection,
vm_prot_t max_protection,
vm_inherit_t inheritance);
extern kern_return_t vm_map_write_user(
vm_map_t map,
vm_offset_t src_addr,
vm_offset_t dst_addr,
vm_size_t size);
extern kern_return_t vm_map_read_user(
vm_map_t map,
vm_offset_t src_addr,
vm_offset_t dst_addr,
vm_size_t size);
extern vm_map_t vm_map_fork(
vm_map_t old_map);
extern kern_return_t vm_map_inherit(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_inherit_t new_inheritance);
extern kern_return_t vm_map_machine_attribute(
vm_map_t map,
vm_offset_t address,
vm_size_t size,
vm_machine_attribute_t attribute,
vm_machine_attribute_val_t* value);
extern kern_return_t vm_map_behavior_set(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_behavior_t new_behavior);
extern kern_return_t vm_map_submap(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_map_t submap,
vm_offset_t offset,
boolean_t use_pmap);
#endif
extern vm_map_t vm_map_create(
pmap_t pmap,
vm_offset_t min,
vm_offset_t max,
boolean_t pageable);
extern void vm_map_destroy(
vm_map_t map);
extern void vm_map_deallocate(
vm_map_t map);
extern kern_return_t vm_map_protect(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_prot_t new_prot,
boolean_t set_max);
extern kern_return_t vm_map_wire(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_prot_t access_type,
boolean_t user_wire);
extern kern_return_t vm_map_unwire(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
boolean_t user_wire);
extern kern_return_t vm_map_remove(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
boolean_t flags);
extern kern_return_t vm_map_copyout(
vm_map_t dst_map,
vm_offset_t *dst_addr,
vm_map_copy_t copy);
extern kern_return_t vm_map_copyin_common(
vm_map_t src_map,
vm_offset_t src_addr,
vm_size_t len,
boolean_t src_destroy,
boolean_t src_volatile,
vm_map_copy_t *copy_result,
boolean_t use_maxprot);
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_offset_t start,
vm_offset_t end);
extern boolean_t vm_map_check_protection(
vm_map_t map,
vm_offset_t start,
vm_offset_t end,
vm_prot_t protection);
#define vm_map_copyin(src_map, src_addr, len, src_destroy, copy_result) \
vm_map_copyin_common(src_map, src_addr, len, src_destroy, \
FALSE, copy_result, FALSE)
#define vm_map_copyin_maxprot(src_map, \
src_addr, len, src_destroy, copy_result) \
vm_map_copyin_common(src_map, src_addr, len, src_destroy, \
FALSE, copy_result, TRUE)
#define VM_MAP_NO_FLAGS 0x0
#define VM_MAP_REMOVE_KUNWIRE 0x1
#define VM_MAP_REMOVE_INTERRUPTIBLE 0x2
#define VM_MAP_REMOVE_WAIT_FOR_KWIRE 0x4
extern unsigned int vm_backing_store_low;
extern void vm_backing_store_disable(
boolean_t suspend);
#endif
#endif