xnu-792.24.17.tar.gz

[apple/xnu.git] / osfmk / vm / bsd_vm.c

diff --git a/osfmk/vm/bsd_vm.c b/osfmk/vm/bsd_vm.c
index e4cad6a94a2bde78b4e59cabb4f6f4d645942c79..fa1cfa94b6545cad30f753ddb7175b3f00bb0728 100644 (file)
--- a/osfmk/vm/bsd_vm.c
+++ b/osfmk/vm/bsd_vm.c
@@ -1,31 +1,23 @@
 /*
  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
 /*
  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *

- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_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 
- * 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.
- *
- * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
- * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 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 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.
+ * 
+ * @APPLE_LICENSE_HEADER_END@

  */
 
 #include <sys/errno.h>
  */
 
 #include <sys/errno.h>


@@ -51,6 +43,7 @@
 #include <default_pager/default_pager_object_server.h>
 
 #include <vm/vm_map.h>
 #include <default_pager/default_pager_object_server.h>
 
 #include <vm/vm_map.h>

+#include <vm/vm_kern.h>

 #include <vm/vm_pageout.h>
 #include <vm/memory_object.h>
 #include <vm/vm_pageout.h>
 #include <vm/vm_pageout.h>
 #include <vm/memory_object.h>
 #include <vm/vm_pageout.h>


@@ -115,22 +108,11 @@ get_vm_end(
  * BSD VNODE PAGER 
  */
 
  * BSD VNODE PAGER 
  */
 

-const struct memory_object_pager_ops vnode_pager_ops = {
-       vnode_pager_reference,
-       vnode_pager_deallocate,
-       vnode_pager_init,
-       vnode_pager_terminate,
-       vnode_pager_data_request,
-       vnode_pager_data_return,
-       vnode_pager_data_initialize,
-       vnode_pager_data_unlock,
-       vnode_pager_synchronize,
-       vnode_pager_unmap,
-       "vnode pager"
-};
+/* until component support available */
+int    vnode_pager_workaround;

 
 typedef struct vnode_pager {
 
 typedef struct vnode_pager {

-       memory_object_pager_ops_t pager_ops;    /* == &vnode_pager_ops       */
+       int                     *pager;         /* pager workaround pointer  */

        unsigned int            pager_ikot;     /* JMM: fake ip_kotype()     */
        unsigned int            ref_count;      /* reference count           */
        memory_object_control_t control_handle; /* mem object control handle */
        unsigned int            pager_ikot;     /* JMM: fake ip_kotype()     */
        unsigned int            ref_count;      /* reference count           */
        memory_object_control_t control_handle; /* mem object control handle */


@@ -221,11 +203,6 @@ macx_triggers(
                return EINVAL;
        }
 
                return EINVAL;
        }
 

-       if (default_pager_init_flag == 0) {
-               start_def_pager(NULL);
-               default_pager_init_flag = 1;
-       }
-

        if (flags & SWAP_ENCRYPT_ON) {
                /* ENCRYPTED SWAP: tell default_pager to encrypt */
                default_pager_triggers(default_pager,
        if (flags & SWAP_ENCRYPT_ON) {
                /* ENCRYPTED SWAP: tell default_pager to encrypt */
                default_pager_triggers(default_pager,


@@ -447,9 +424,6 @@ vnode_pager_bootstrap(void)
        size = (vm_size_t) sizeof(struct vnode_pager);
        vnode_pager_zone = zinit(size, (vm_size_t) MAX_VNODE*size,
                                PAGE_SIZE, "vnode pager structures");
        size = (vm_size_t) sizeof(struct vnode_pager);
        vnode_pager_zone = zinit(size, (vm_size_t) MAX_VNODE*size,
                                PAGE_SIZE, "vnode pager structures");

-#ifdef __i386__
-       apple_protect_pager_bootstrap();
-#endif /* __i386__ */

        return;
 }
 
        return;
 }
 


@@ -563,53 +537,12 @@ vnode_pager_get_object_size(
 {
        vnode_pager_t   vnode_object;
 
 {
        vnode_pager_t   vnode_object;
 

-       if (mem_obj->mo_pager_ops != &vnode_pager_ops) {
-               *length = 0;
-               return KERN_INVALID_ARGUMENT;
-       }
-

        vnode_object = vnode_pager_lookup(mem_obj);
 
        *length = vnode_pager_get_filesize(vnode_object->vnode_handle);
        return KERN_SUCCESS;
 }
 
        vnode_object = vnode_pager_lookup(mem_obj);
 
        *length = vnode_pager_get_filesize(vnode_object->vnode_handle);
        return KERN_SUCCESS;
 }
 

-kern_return_t
-vnode_pager_get_object_pathname(
-       memory_object_t         mem_obj,
-       char                    *pathname,
-       vm_size_t               *length_p)
-{
-       vnode_pager_t   vnode_object;
-
-       if (mem_obj->mo_pager_ops != &vnode_pager_ops) {
-               return KERN_INVALID_ARGUMENT;
-       }
-
-       vnode_object = vnode_pager_lookup(mem_obj);
-
-       return vnode_pager_get_pathname(vnode_object->vnode_handle,
-                                       pathname,
-                                       length_p);
-}
-
-kern_return_t
-vnode_pager_get_object_filename(
-       memory_object_t mem_obj,
-       char            **filename)
-{
-       vnode_pager_t   vnode_object;
-
-       if (mem_obj->mo_pager_ops != &vnode_pager_ops) {
-               return KERN_INVALID_ARGUMENT;
-       }
-
-       vnode_object = vnode_pager_lookup(mem_obj);
-
-       return vnode_pager_get_filename(vnode_object->vnode_handle,
-                                       filename);
-}
-

 /*
  *
  */
 /*
  *
  */


@@ -874,7 +807,7 @@ vnode_pager_cluster_read(
        if (kret == 1) {
                int     uplflags;
                upl_t   upl = NULL;
        if (kret == 1) {
                int     uplflags;
                upl_t   upl = NULL;

-               unsigned int    count = 0;
+               int     count = 0;

                kern_return_t   kr;
 
                uplflags = (UPL_NO_SYNC |
                kern_return_t   kr;
 
                uplflags = (UPL_NO_SYNC |


@@ -913,7 +846,7 @@ vnode_pager_release_from_cache(
                int     *cnt)
 {
        memory_object_free_from_cache(
                int     *cnt)
 {
        memory_object_free_from_cache(

-                       &realhost, &vnode_pager_ops, cnt);
+                       &realhost, &vnode_pager_workaround, cnt);

 }
 
 /*
 }
 
 /*


@@ -936,7 +869,7 @@ vnode_object_create(
         * we reserve the second word in the object for a fake ip_kotype
         * setting - that will tell vm_map to use it as a memory object.
         */
         * we reserve the second word in the object for a fake ip_kotype
         * setting - that will tell vm_map to use it as a memory object.
         */

-       vnode_object->pager_ops = &vnode_pager_ops;
+       vnode_object->pager = &vnode_pager_workaround;

        vnode_object->pager_ikot = IKOT_MEMORY_OBJECT;
        vnode_object->ref_count = 1;
        vnode_object->control_handle = MEMORY_OBJECT_CONTROL_NULL;
        vnode_object->pager_ikot = IKOT_MEMORY_OBJECT;
        vnode_object->ref_count = 1;
        vnode_object->control_handle = MEMORY_OBJECT_CONTROL_NULL;


@@ -955,193 +888,7 @@ vnode_pager_lookup(
        vnode_pager_t   vnode_object;
 
        vnode_object = (vnode_pager_t)name;
        vnode_pager_t   vnode_object;
 
        vnode_object = (vnode_pager_t)name;

-       assert(vnode_object->pager_ops == &vnode_pager_ops);
+       assert(vnode_object->pager == &vnode_pager_workaround);

        return (vnode_object);
 }
 
        return (vnode_object);
 }
 

-
-/*********************** proc_info implementation *************/
-
-#include <sys/bsdtask_info.h>
-
-static int fill_vnodeinfoforaddr( vm_map_entry_t entry, uint32_t * vnodeaddr, uint32_t * vid);
-
-
-int
-fill_procregioninfo(task_t task, uint64_t arg, struct proc_regioninfo_internal *pinfo, uint32_t  *vnodeaddr, uint32_t  *vid)
-{
-
-       vm_map_t map = task->map;
-       vm_map_offset_t address = (vm_map_offset_t )arg;
-       vm_map_entry_t          tmp_entry;
-       vm_map_entry_t          entry;
-       vm_map_offset_t         start;
-       vm_region_extended_info_data_t extended;
-       vm_region_top_info_data_t top;
-
-
-       if (map == VM_MAP_NULL) 
-               return(0);
-
-           vm_map_lock_read(map);
-
-           start = address;
-           if (!vm_map_lookup_entry(map, start, &tmp_entry)) {
-               if ((entry = tmp_entry->vme_next) == vm_map_to_entry(map)) {
-                       vm_map_unlock_read(map);
-                       return(0);
-               }
-           } else {
-               entry = tmp_entry;
-           }
-
-           start = entry->vme_start;
-
-           pinfo->pri_offset = entry->offset;
-           pinfo->pri_protection = entry->protection;
-           pinfo->pri_max_protection = entry->max_protection;
-           pinfo->pri_inheritance = entry->inheritance;
-           pinfo->pri_behavior = entry->behavior;
-           pinfo->pri_user_wired_count = entry->user_wired_count;
-           pinfo->pri_user_tag = entry->alias;
-
-           if (entry->is_sub_map) {
-               pinfo->pri_flags |= PROC_REGION_SUBMAP;
-           } else {
-               if (entry->is_shared)
-                       pinfo->pri_flags |= PROC_REGION_SHARED;
-           }
-
-
-           extended.protection = entry->protection;
-           extended.user_tag = entry->alias;
-           extended.pages_resident = 0;
-           extended.pages_swapped_out = 0;
-           extended.pages_shared_now_private = 0;
-           extended.pages_dirtied = 0;
-           extended.external_pager = 0;
-           extended.shadow_depth = 0;
-
-           vm_map_region_walk(map, start, entry, entry->offset, entry->vme_end - start, &extended);
-
-           if (extended.external_pager && extended.ref_count == 2 && extended.share_mode == SM_SHARED)
-                   extended.share_mode = SM_PRIVATE;
-
-           top.private_pages_resident = 0;
-           top.shared_pages_resident = 0;
-           vm_map_region_top_walk(entry, &top);
-
-       
-           pinfo->pri_pages_resident = extended.pages_resident;
-           pinfo->pri_pages_shared_now_private = extended.pages_shared_now_private;
-           pinfo->pri_pages_swapped_out = extended.pages_swapped_out;
-           pinfo->pri_pages_dirtied = extended.pages_dirtied;
-           pinfo->pri_ref_count = extended.ref_count;
-           pinfo->pri_shadow_depth = extended.shadow_depth;
-           pinfo->pri_share_mode = extended.share_mode;
-
-           pinfo->pri_private_pages_resident = top.private_pages_resident;
-           pinfo->pri_shared_pages_resident = top.shared_pages_resident;
-           pinfo->pri_obj_id = top.obj_id;
-               
-           pinfo->pri_address = (uint64_t)start;
-           pinfo->pri_size = (uint64_t)(entry->vme_end - start);
-           pinfo->pri_depth = 0;
-       
-           if ((vnodeaddr != 0) && (entry->is_sub_map == 0)) {
-               *vnodeaddr = (uint32_t)0;
-
-               if (fill_vnodeinfoforaddr(entry, vnodeaddr, vid) ==0) {
-                       vm_map_unlock_read(map);
-                       return(1);
-               }
-           }
-
-           vm_map_unlock_read(map);
-           return(1);
-}
-
-static int
-fill_vnodeinfoforaddr(
-       vm_map_entry_t                  entry,
-       uint32_t * vnodeaddr,
-       uint32_t * vid)
-{
-       vm_object_t     top_object, object;
-       memory_object_t memory_object;
-       memory_object_pager_ops_t pager_ops;
-       kern_return_t   kr;
-       int             shadow_depth;
-
-
-       if (entry->is_sub_map) {
-               return(0);
-       } else {
-               /*
-                * The last object in the shadow chain has the
-                * relevant pager information.
-                */
-               top_object = entry->object.vm_object;
-               if (top_object == VM_OBJECT_NULL) {
-                       object = VM_OBJECT_NULL;
-                       shadow_depth = 0;
-               } else {
-                       vm_object_lock(top_object);
-                       for (object = top_object, shadow_depth = 0;
-                            object->shadow != VM_OBJECT_NULL;
-                            object = object->shadow, shadow_depth++) {
-                               vm_object_lock(object->shadow);
-                               vm_object_unlock(object);
-                       }
-               }
-       }
-
-       if (object == VM_OBJECT_NULL) {
-               return(0);
-       } else if (object->internal) {
-               vm_object_unlock(object);
-               return(0);
-       } else if (! object->pager_ready ||
-                  object->terminating ||
-                  ! object->alive) {
-               vm_object_unlock(object);
-               return(0);
-       } else {
-               memory_object = object->pager;
-               pager_ops = memory_object->mo_pager_ops;
-               if (pager_ops == &vnode_pager_ops) {
-                       kr = vnode_pager_get_object_vnode(
-                               memory_object,
-                               vnodeaddr, vid);
-                       if (kr != KERN_SUCCESS) {
-                               vm_object_unlock(object);
-                               return(0);
-                       }
-               } else {
-                       vm_object_unlock(object);
-                       return(0);
-               }
-       }
-       vm_object_unlock(object);
-       return(1);
-}
-
-kern_return_t 
-vnode_pager_get_object_vnode (
-       memory_object_t         mem_obj,
-       uint32_t * vnodeaddr,
-       uint32_t * vid)
-{
-       vnode_pager_t   vnode_object;
-
-       vnode_object = vnode_pager_lookup(mem_obj);
-       if (vnode_object->vnode_handle)  {
-               *vnodeaddr = (uint32_t)vnode_object->vnode_handle;
-               *vid = (uint32_t)vnode_vid((void *)vnode_object->vnode_handle); 
-
-               return(KERN_SUCCESS);
-       }
-       
-       return(KERN_FAILURE);
-}
-