osfmk/vm/vm_protos.h

   1 /*
   2  * Copyright (c) 2004-2007 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifdef  XNU_KERNEL_PRIVATE
  30
  31 #ifndef _VM_VM_PROTOS_H_
  32 #define _VM_VM_PROTOS_H_
  33
  34 #include <mach/mach_types.h>
  35 #include <kern/kern_types.h>
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /*
  42  * This file contains various type definitions and routine prototypes
  43  * that are needed to avoid compilation warnings for VM code (in osfmk,
  44  * default_pager and bsd).
  45  * Most of these should eventually go into more appropriate header files.
  46  *
  47  * Include it after all other header files since it doesn't include any
  48  * type definitions and it works around some conflicts with other header
  49  * files.
  50  */
  51
  52 /*
  53  * iokit
  54  */
  55 extern kern_return_t device_data_action(
  56         uintptr_t               device_handle,
  57         ipc_port_t              device_pager,
  58         vm_prot_t               protection,
  59         vm_object_offset_t      offset,
  60         vm_size_t               size);
  61
  62 extern kern_return_t device_close(
  63         uintptr_t     device_handle);
  64
  65 extern boolean_t vm_swap_files_pinned(void);
  66
  67 /*
  68  * osfmk
  69  */
  70 #ifndef _IPC_IPC_PORT_H_
  71 extern mach_port_name_t ipc_port_copyout_send(
  72         ipc_port_t      sright,
  73         ipc_space_t     space);
  74 extern task_t port_name_to_task(
  75         mach_port_name_t name);
  76 extern task_t port_name_to_task_inspect(
  77         mach_port_name_t name);
  78 extern void ipc_port_release_send(
  79         ipc_port_t      port);
  80 #endif /* _IPC_IPC_PORT_H_ */
  81
  82 extern ipc_space_t  get_task_ipcspace(
  83         task_t t);
  84
  85 #if CONFIG_MEMORYSTATUS
  86 extern int max_task_footprint_mb;       /* Per-task limit on physical memory consumption in megabytes */
  87 #endif /* CONFIG_MEMORYSTATUS */
  88
  89 /* Some loose-ends VM stuff */
  90
  91 extern vm_map_t         kalloc_map;
  92 extern vm_size_t        msg_ool_size_small;
  93 extern vm_map_t         zone_map;
  94
  95 extern void consider_machine_adjust(void);
  96 extern vm_map_offset_t get_map_min(vm_map_t);
  97 extern vm_map_offset_t get_map_max(vm_map_t);
  98 extern vm_map_size_t get_vmmap_size(vm_map_t);
  99 #if CONFIG_COREDUMP
 100 extern int get_vmmap_entries(vm_map_t);
 101 #endif
 102 extern int get_map_nentries(vm_map_t);
 103
 104 extern vm_map_offset_t vm_map_page_mask(vm_map_t);
 105
 106 extern kern_return_t vm_map_purgable_control(
 107                                 vm_map_t                map,
 108                                 vm_map_offset_t         address,
 109                                 vm_purgable_t           control,
 110                                 int                     *state);
 111
 112 extern kern_return_t
 113 vnode_pager_get_object_vnode(
 114         memory_object_t mem_obj,
 115         uintptr_t * vnodeaddr,
 116         uint32_t * vid);
 117
 118 #if CONFIG_COREDUMP
 119 extern boolean_t coredumpok(vm_map_t map, vm_offset_t va);
 120 #endif
 121
 122 /*
 123  * VM routines that used to be published to
 124  * user space, and are now restricted to the kernel.
 125  *
 126  * They should eventually go away entirely -
 127  * to be replaced with standard vm_map() and
 128  * vm_deallocate() calls.
 129  */
 130
 131 extern kern_return_t vm_upl_map
 132 (
 133         vm_map_t target_task,
 134         upl_t upl,
 135         vm_address_t *address
 136 );
 137
 138 extern kern_return_t vm_upl_unmap
 139 (
 140         vm_map_t target_task,
 141         upl_t upl
 142 );
 143
 144 extern kern_return_t vm_region_object_create
 145 (
 146         vm_map_t target_task,
 147         vm_size_t size,
 148         ipc_port_t *object_handle
 149 );
 150
 151 extern mach_vm_offset_t mach_get_vm_start(vm_map_t);
 152 extern mach_vm_offset_t mach_get_vm_end(vm_map_t);
 153
 154 #if CONFIG_CODE_DECRYPTION
 155 #define VM_MAP_DEBUG_APPLE_PROTECT      MACH_ASSERT
 156 #if VM_MAP_DEBUG_APPLE_PROTECT
 157 extern int vm_map_debug_apple_protect;
 158 #endif /* VM_MAP_DEBUG_APPLE_PROTECT */
 159 struct pager_crypt_info;
 160 extern kern_return_t vm_map_apple_protected(
 161         vm_map_t                map,
 162         vm_map_offset_t         start,
 163         vm_map_offset_t         end,
 164         vm_object_offset_t      crypto_backing_offset,
 165         struct pager_crypt_info *crypt_info);
 166 extern void apple_protect_pager_bootstrap(void);
 167 extern memory_object_t apple_protect_pager_setup(
 168         vm_object_t             backing_object,
 169         vm_object_offset_t      backing_offset,
 170         vm_object_offset_t      crypto_backing_offset,
 171         struct pager_crypt_info *crypt_info,
 172         vm_object_offset_t      crypto_start,
 173         vm_object_offset_t      crypto_end);
 174 #endif  /* CONFIG_CODE_DECRYPTION */
 175
 176 struct vm_shared_region_slide_info;
 177 extern kern_return_t vm_map_shared_region(
 178         vm_map_t                map,
 179         vm_map_offset_t         start,
 180         vm_map_offset_t         end,
 181         vm_object_offset_t      backing_offset,
 182         struct vm_shared_region_slide_info *slide_info);
 183 extern void shared_region_pager_bootstrap(void);
 184 extern memory_object_t shared_region_pager_setup(
 185         vm_object_t             backing_object,
 186         vm_object_offset_t      backing_offset,
 187         struct vm_shared_region_slide_info *slide_info);
 188
 189 struct vnode;
 190 extern void swapfile_pager_bootstrap(void);
 191 extern memory_object_t swapfile_pager_setup(struct vnode *vp);
 192 extern memory_object_control_t swapfile_pager_control(memory_object_t mem_obj);
 193
 194 #if __arm64__ || ((__ARM_ARCH_7K__ >= 2) && defined(PLATFORM_WatchOS))
 195 #define SIXTEENK_PAGE_SIZE      0x4000
 196 #define SIXTEENK_PAGE_MASK      0x3FFF
 197 #define SIXTEENK_PAGE_SHIFT     14
 198 #endif /* __arm64__ || ((__ARM_ARCH_7K__ >= 2) && defined(PLATFORM_WatchOS)) */
 199
 200 #if __arm64__
 201 #define FOURK_PAGE_SIZE         0x1000
 202 #define FOURK_PAGE_MASK         0xFFF
 203 #define FOURK_PAGE_SHIFT        12
 204
 205 extern unsigned int page_shift_user32;
 206
 207 #define VM_MAP_DEBUG_FOURK      MACH_ASSERT
 208 #if VM_MAP_DEBUG_FOURK
 209 extern int vm_map_debug_fourk;
 210 #endif /* VM_MAP_DEBUG_FOURK */
 211 extern void fourk_pager_bootstrap(void);
 212 extern memory_object_t fourk_pager_create(void);
 213 extern vm_object_t fourk_pager_to_vm_object(memory_object_t mem_obj);
 214 extern kern_return_t fourk_pager_populate(
 215         memory_object_t mem_obj,
 216         boolean_t overwrite,
 217         int index,
 218         vm_object_t new_backing_object,
 219         vm_object_offset_t new_backing_offset,
 220         vm_object_t *old_backing_object,
 221         vm_object_offset_t *old_backing_offset);
 222 #endif /* __arm64__ */
 223
 224 /*
 225  * bsd
 226  */
 227 struct vnode;
 228 extern void *upl_get_internal_page_list(
 229         upl_t upl);
 230
 231 extern void vnode_setswapmount(struct vnode *);
 232 extern int64_t vnode_getswappin_avail(struct vnode *);
 233
 234 extern void vnode_pager_was_dirtied(
 235         struct vnode *,
 236         vm_object_offset_t,
 237         vm_object_offset_t);
 238
 239 typedef int pager_return_t;
 240 extern pager_return_t   vnode_pagein(
 241         struct vnode *, upl_t,
 242         upl_offset_t, vm_object_offset_t,
 243         upl_size_t, int, int *);
 244 extern pager_return_t   vnode_pageout(
 245         struct vnode *, upl_t,
 246         upl_offset_t, vm_object_offset_t,
 247         upl_size_t, int, int *);
 248 extern uint32_t vnode_trim (struct vnode *, int64_t offset, unsigned long len);
 249 extern memory_object_t vnode_pager_setup(
 250         struct vnode *, memory_object_t);
 251 extern vm_object_offset_t vnode_pager_get_filesize(
 252         struct vnode *);
 253 extern uint32_t vnode_pager_isinuse(
 254         struct vnode *);
 255 extern boolean_t vnode_pager_isSSD(
 256         struct vnode *);
 257 extern void vnode_pager_throttle(
 258         void);
 259 extern uint32_t vnode_pager_return_throttle_io_limit(
 260         struct vnode *,
 261         uint32_t     *);
 262 extern kern_return_t vnode_pager_get_name(
 263         struct vnode    *vp,
 264         char            *pathname,
 265         vm_size_t       pathname_len,
 266         char            *filename,
 267         vm_size_t       filename_len,
 268         boolean_t       *truncated_path_p);
 269 struct timespec;
 270 extern kern_return_t vnode_pager_get_mtime(
 271         struct vnode    *vp,
 272         struct timespec *mtime,
 273         struct timespec *cs_mtime);
 274 extern kern_return_t vnode_pager_get_cs_blobs(
 275         struct vnode    *vp,
 276         void            **blobs);
 277
 278 #if CONFIG_IOSCHED
 279 void vnode_pager_issue_reprioritize_io(
 280         struct vnode    *devvp,
 281         uint64_t        blkno,
 282         uint32_t        len,
 283         int             priority);
 284 #endif
 285
 286 #if CHECK_CS_VALIDATION_BITMAP
 287 /* used by the vnode_pager_cs_validation_bitmap routine*/
 288 #define CS_BITMAP_SET   1
 289 #define CS_BITMAP_CLEAR 2
 290 #define CS_BITMAP_CHECK 3
 291
 292 #endif /* CHECK_CS_VALIDATION_BITMAP */
 293
 294 extern void vnode_pager_bootstrap(void);
 295 extern kern_return_t
 296 vnode_pager_data_unlock(
 297         memory_object_t         mem_obj,
 298         memory_object_offset_t  offset,
 299         memory_object_size_t            size,
 300         vm_prot_t               desired_access);
 301 extern kern_return_t vnode_pager_init(
 302         memory_object_t,
 303         memory_object_control_t,
 304         memory_object_cluster_size_t);
 305 extern kern_return_t vnode_pager_get_object_size(
 306         memory_object_t,
 307         memory_object_offset_t *);
 308
 309 #if CONFIG_IOSCHED
 310 extern kern_return_t vnode_pager_get_object_devvp(
 311         memory_object_t,
 312         uintptr_t *);
 313 #endif
 314
 315 extern void vnode_pager_dirtied(
 316         memory_object_t,
 317         vm_object_offset_t,
 318         vm_object_offset_t);
 319 extern kern_return_t vnode_pager_get_isinuse(
 320         memory_object_t,
 321         uint32_t *);
 322 extern kern_return_t vnode_pager_get_isSSD(
 323         memory_object_t,
 324         boolean_t *);
 325 extern kern_return_t vnode_pager_get_throttle_io_limit(
 326         memory_object_t,
 327         uint32_t *);
 328 extern kern_return_t vnode_pager_get_object_name(
 329         memory_object_t mem_obj,
 330         char            *pathname,
 331         vm_size_t       pathname_len,
 332         char            *filename,
 333         vm_size_t       filename_len,
 334         boolean_t       *truncated_path_p);
 335 extern kern_return_t vnode_pager_get_object_mtime(
 336         memory_object_t mem_obj,
 337         struct timespec *mtime,
 338         struct timespec *cs_mtime);
 339
 340 #if CHECK_CS_VALIDATION_BITMAP
 341 extern kern_return_t vnode_pager_cs_check_validation_bitmap(
 342         memory_object_t mem_obj,
 343         memory_object_offset_t  offset,
 344         int             optype);
 345 #endif /*CHECK_CS_VALIDATION_BITMAP*/
 346
 347 extern  kern_return_t ubc_cs_check_validation_bitmap (
 348         struct vnode *vp,
 349         memory_object_offset_t offset,
 350         int optype);
 351
 352 extern kern_return_t vnode_pager_data_request(
 353         memory_object_t,
 354         memory_object_offset_t,
 355         memory_object_cluster_size_t,
 356         vm_prot_t,
 357         memory_object_fault_info_t);
 358 extern kern_return_t vnode_pager_data_return(
 359         memory_object_t,
 360         memory_object_offset_t,
 361         memory_object_cluster_size_t,
 362         memory_object_offset_t *,
 363         int *,
 364         boolean_t,
 365         boolean_t,
 366         int);
 367 extern kern_return_t vnode_pager_data_initialize(
 368         memory_object_t,
 369         memory_object_offset_t,
 370         memory_object_cluster_size_t);
 371 extern void vnode_pager_reference(
 372         memory_object_t         mem_obj);
 373 extern kern_return_t vnode_pager_synchronize(
 374         memory_object_t         mem_obj,
 375         memory_object_offset_t  offset,
 376         memory_object_size_t            length,
 377         vm_sync_t               sync_flags);
 378 extern kern_return_t vnode_pager_map(
 379         memory_object_t         mem_obj,
 380         vm_prot_t               prot);
 381 extern kern_return_t vnode_pager_last_unmap(
 382         memory_object_t         mem_obj);
 383 extern void vnode_pager_deallocate(
 384         memory_object_t);
 385 extern kern_return_t vnode_pager_terminate(
 386         memory_object_t);
 387 extern void vnode_pager_vrele(
 388         struct vnode *vp);
 389 extern struct vnode *vnode_pager_lookup_vnode(
 390         memory_object_t);
 391
 392 extern int  ubc_map(
 393         struct vnode *vp,
 394         int flags);
 395 extern void ubc_unmap(
 396         struct vnode *vp);
 397
 398 struct vm_map_entry;
 399 extern struct vm_object *find_vnode_object(struct vm_map_entry *entry);
 400
 401 extern void   device_pager_reference(memory_object_t);
 402 extern void   device_pager_deallocate(memory_object_t);
 403 extern kern_return_t   device_pager_init(memory_object_t,
 404                                          memory_object_control_t,
 405                                          memory_object_cluster_size_t);
 406 extern  kern_return_t device_pager_terminate(memory_object_t);
 407 extern  kern_return_t   device_pager_data_request(memory_object_t,
 408                                                   memory_object_offset_t,
 409                                                   memory_object_cluster_size_t,
 410                                                   vm_prot_t,
 411                                                   memory_object_fault_info_t);
 412 extern kern_return_t device_pager_data_return(memory_object_t,
 413                                               memory_object_offset_t,
 414                                               memory_object_cluster_size_t,
 415                                               memory_object_offset_t *,
 416                                               int *,
 417                                               boolean_t,
 418                                               boolean_t,
 419                                               int);
 420 extern kern_return_t device_pager_data_initialize(memory_object_t,
 421                                                   memory_object_offset_t,
 422                                                   memory_object_cluster_size_t);
 423 extern kern_return_t device_pager_data_unlock(memory_object_t,
 424                                               memory_object_offset_t,
 425                                               memory_object_size_t,
 426                                               vm_prot_t);
 427 extern kern_return_t device_pager_synchronize(memory_object_t,
 428                                               memory_object_offset_t,
 429                                               memory_object_size_t,
 430                                               vm_sync_t);
 431 extern kern_return_t device_pager_map(memory_object_t, vm_prot_t);
 432 extern kern_return_t device_pager_last_unmap(memory_object_t);
 433 extern kern_return_t device_pager_populate_object(
 434         memory_object_t         device,
 435         memory_object_offset_t  offset,
 436         ppnum_t                 page_num,
 437         vm_size_t               size);
 438 extern memory_object_t device_pager_setup(
 439         memory_object_t,
 440         uintptr_t,
 441         vm_size_t,
 442         int);
 443 extern void device_pager_bootstrap(void);
 444 extern boolean_t is_device_pager_ops(const struct memory_object_pager_ops *pager_ops);
 445
 446 extern kern_return_t pager_map_to_phys_contiguous(
 447         memory_object_control_t object,
 448         memory_object_offset_t  offset,
 449         addr64_t                base_vaddr,
 450         vm_size_t               size);
 451
 452 extern kern_return_t memory_object_create_named(
 453         memory_object_t pager,
 454         memory_object_offset_t  size,
 455         memory_object_control_t         *control);
 456
 457 struct macx_triggers_args;
 458 extern int mach_macx_triggers(
 459         struct macx_triggers_args       *args);
 460
 461 extern int macx_swapinfo(
 462         memory_object_size_t    *total_p,
 463         memory_object_size_t    *avail_p,
 464         vm_size_t               *pagesize_p,
 465         boolean_t               *encrypted_p);
 466
 467 extern void log_stack_execution_failure(addr64_t vaddr, vm_prot_t prot);
 468 extern void log_unnest_badness(
 469         vm_map_t map,
 470         vm_map_offset_t start_unnest,
 471         vm_map_offset_t end_unnest,
 472         boolean_t is_nested_map,
 473         vm_map_offset_t lowest_unnestable_addr);
 474
 475 struct proc;
 476 extern int cs_allow_invalid(struct proc *p);
 477 extern int cs_invalid_page(addr64_t vaddr, boolean_t *cs_killed);
 478
 479 #define CS_VALIDATE_TAINTED     0x00000001
 480 #define CS_VALIDATE_NX          0x00000002
 481 extern boolean_t cs_validate_range(struct vnode *vp,
 482                                    memory_object_t pager,
 483                                    memory_object_offset_t offset,
 484                                    const void *data,
 485                                    vm_size_t size,
 486                                    unsigned *result);
 487 #if PMAP_CS
 488 extern kern_return_t cs_associate_blob_with_mapping(
 489         void *pmap,
 490         vm_map_offset_t start,
 491         vm_map_size_t size,
 492         vm_object_offset_t offset,
 493         void *blobs_p);
 494 #endif /* PMAP_CS */
 495
 496 extern kern_return_t memory_entry_purgeable_control_internal(
 497         ipc_port_t      entry_port,
 498         vm_purgable_t   control,
 499         int             *state);
 500
 501 extern kern_return_t memory_entry_access_tracking_internal(
 502         ipc_port_t      entry_port,
 503         int             *access_tracking,
 504         uint32_t        *access_tracking_reads,
 505         uint32_t        *access_tracking_writes);
 506
 507 extern kern_return_t mach_memory_entry_purgable_control(
 508         ipc_port_t      entry_port,
 509         vm_purgable_t   control,
 510         int             *state);
 511
 512 extern kern_return_t mach_memory_entry_get_page_counts(
 513         ipc_port_t      entry_port,
 514         unsigned int    *resident_page_count,
 515         unsigned int    *dirty_page_count);
 516
 517 extern kern_return_t mach_memory_entry_page_op(
 518         ipc_port_t              entry_port,
 519         vm_object_offset_t      offset,
 520         int                     ops,
 521         ppnum_t                 *phys_entry,
 522         int                     *flags);
 523
 524 extern kern_return_t mach_memory_entry_range_op(
 525         ipc_port_t              entry_port,
 526         vm_object_offset_t      offset_beg,
 527         vm_object_offset_t      offset_end,
 528         int                     ops,
 529         int                     *range);
 530
 531 extern void mach_memory_entry_port_release(ipc_port_t port);
 532 extern void mach_destroy_memory_entry(ipc_port_t port);
 533 extern kern_return_t mach_memory_entry_allocate(
 534         struct vm_named_entry **user_entry_p,
 535         ipc_port_t *user_handle_p);
 536
 537 extern void vm_paging_map_init(void);
 538
 539 extern int macx_backing_store_compaction(int flags);
 540 extern unsigned int mach_vm_ctl_page_free_wanted(void);
 541
 542 extern int no_paging_space_action(void);
 543
 544 #define VM_TOGGLE_CLEAR         0
 545 #define VM_TOGGLE_SET           1
 546 #define VM_TOGGLE_GETVALUE      999
 547 int vm_toggle_entry_reuse(int, int*);
 548
 549 #define SWAP_WRITE              0x00000000      /* Write buffer (pseudo flag). */
 550 #define SWAP_READ               0x00000001      /* Read buffer. */
 551 #define SWAP_ASYNC              0x00000002      /* Start I/O, do not wait. */
 552
 553 extern void vm_compressor_pager_init(void);
 554 extern kern_return_t compressor_memory_object_create(
 555         memory_object_size_t,
 556         memory_object_t *);
 557
 558 extern boolean_t vm_compressor_low_on_space(void);
 559 extern boolean_t vm_compressor_out_of_space(void);
 560 extern int       vm_swap_low_on_space(void);
 561 void             do_fastwake_warmup_all(void);
 562 #if CONFIG_JETSAM
 563 extern int proc_get_memstat_priority(struct proc*, boolean_t);
 564 #endif /* CONFIG_JETSAM */
 565
 566 /* the object purger. purges the next eligible object from memory. */
 567 /* returns TRUE if an object was purged, otherwise FALSE. */
 568 boolean_t vm_purgeable_object_purge_one_unlocked(int force_purge_below_group);
 569 void vm_purgeable_disown(task_t task);
 570 void vm_purgeable_nonvolatile_owner_update(task_t       owner,
 571                                            int          delta);
 572 void vm_purgeable_volatile_owner_update(task_t          owner,
 573                                         int             delta);
 574
 575
 576 struct trim_list {
 577         uint64_t        tl_offset;
 578         uint64_t        tl_length;
 579         struct trim_list *tl_next;
 580 };
 581
 582 u_int32_t vnode_trim_list(struct vnode *vp, struct trim_list *tl, boolean_t route_only);
 583
 584 #define MAX_SWAPFILENAME_LEN    1024
 585 #define SWAPFILENAME_INDEX_LEN  2       /* Doesn't include the terminating NULL character */
 586
 587 extern char     swapfilename[MAX_SWAPFILENAME_LEN + 1];
 588
 589 struct vm_counters {
 590         unsigned int    do_collapse_compressor;
 591         unsigned int    do_collapse_compressor_pages;
 592         unsigned int    do_collapse_terminate;
 593         unsigned int    do_collapse_terminate_failure;
 594         unsigned int    should_cow_but_wired;
 595         unsigned int    create_upl_extra_cow;
 596         unsigned int    create_upl_extra_cow_pages;
 597         unsigned int    create_upl_lookup_failure_write;
 598         unsigned int    create_upl_lookup_failure_copy;
 599 };
 600 extern struct vm_counters vm_counters;
 601
 602 #if CONFIG_SECLUDED_MEMORY
 603 struct vm_page_secluded_data {
 604         int     eligible_for_secluded;
 605         int     grab_success_free;
 606         int     grab_success_other;
 607         int     grab_failure_locked;
 608         int     grab_failure_state;
 609         int     grab_failure_dirty;
 610         int     grab_for_iokit;
 611         int     grab_for_iokit_success;
 612 };
 613 extern struct vm_page_secluded_data vm_page_secluded;
 614
 615 extern int num_tasks_can_use_secluded_mem;
 616
 617 /* boot-args */
 618 extern int secluded_for_apps;
 619 extern int secluded_for_iokit;
 620 extern int secluded_for_filecache;
 621 #if 11
 622 extern int secluded_for_fbdp;
 623 #endif
 624
 625 extern void             memory_object_mark_eligible_for_secluded(
 626         memory_object_control_t         control,
 627         boolean_t                       eligible_for_secluded);
 628
 629 #endif /* CONFIG_SECLUDED_MEMORY */
 630
 631 #define MAX_PAGE_RANGE_QUERY    (1ULL * 1024 * 1024 * 1024) /* 1 GB */
 632
 633 extern kern_return_t mach_make_memory_entry_internal(
 634         vm_map_t                target_map,
 635         memory_object_size_t    *size,
 636         memory_object_offset_t offset,
 637         vm_prot_t               permission,
 638         ipc_port_t              *object_handle,
 639         ipc_port_t              parent_handle);
 640
 641 #define roundup(x, y)   ((((x) % (y)) == 0) ? \
 642                         (x) : ((x) + ((y) - ((x) % (y)))))
 643
 644 #ifdef __cplusplus
 645 }
 646 #endif
 647
 648 /*
 649  * Flags for the VM swapper/reclaimer.
 650  * Used by vm_swap_consider_defragment()
 651  * to force defrag/reclaim by the swap
 652  * GC thread.
 653  */
 654 #define VM_SWAP_FLAGS_NONE             0
 655 #define VM_SWAP_FLAGS_FORCE_DEFRAG     1
 656 #define VM_SWAP_FLAGS_FORCE_RECLAIM    2
 657
 658 #endif  /* _VM_VM_PROTOS_H_ */
 659
 660 #endif  /* XNU_KERNEL_PRIVATE */