/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_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.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ 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.
*
- * 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
+ * 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@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 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.
- *
+ *
* 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
- *
+ *
* 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.
*/
* Page fault handling module declarations.
*/
-#ifndef _VM_VM_FAULT_H_
+#ifndef _VM_VM_FAULT_H_
#define _VM_VM_FAULT_H_
#include <mach/mach_types.h>
#include <mach/vm_param.h>
#include <mach/vm_behavior.h>
-#ifdef KERNEL_PRIVATE
+#ifdef KERNEL_PRIVATE
-typedef kern_return_t vm_fault_return_t;
+typedef kern_return_t vm_fault_return_t;
-#define VM_FAULT_SUCCESS 0
-#define VM_FAULT_RETRY 1
-#define VM_FAULT_INTERRUPTED 2
-#define VM_FAULT_MEMORY_SHORTAGE 3
-#define VM_FAULT_FICTITIOUS_SHORTAGE 4
-#define VM_FAULT_MEMORY_ERROR 5
+#define VM_FAULT_SUCCESS 0
+#define VM_FAULT_RETRY 1
+#define VM_FAULT_INTERRUPTED 2
+#define VM_FAULT_MEMORY_SHORTAGE 3
+#define VM_FAULT_MEMORY_ERROR 5
+#define VM_FAULT_SUCCESS_NO_VM_PAGE 6 /* success but no VM page */
/*
* Page fault handling based on vm_map (or entries therein)
*/
extern kern_return_t vm_fault(
- vm_map_t map,
- vm_map_offset_t vaddr,
- vm_prot_t fault_type,
- boolean_t change_wiring,
- int interruptible,
- pmap_t pmap,
- vm_map_offset_t pmap_addr);
-
-#ifdef MACH_KERNEL_PRIVATE
+ vm_map_t map,
+ vm_map_offset_t vaddr,
+ vm_prot_t fault_type,
+ boolean_t change_wiring,
+#if XNU_KERNEL_PRIVATE
+ vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */
+#endif
+ int interruptible,
+ pmap_t pmap,
+ vm_map_offset_t pmap_addr)
+#if XNU_KERNEL_PRIVATE
+__XNU_INTERNAL(vm_fault)
+#endif
+;
+
+extern void vm_pre_fault(vm_map_offset_t, vm_prot_t);
+
+#ifdef MACH_KERNEL_PRIVATE
#include <vm/vm_page.h>
#include <vm/vm_object.h>
extern void vm_fault_init(void);
+/* exported kext version */
+extern kern_return_t vm_fault_external(
+ vm_map_t map,
+ vm_map_offset_t vaddr,
+ vm_prot_t fault_type,
+ boolean_t change_wiring,
+ int interruptible,
+ pmap_t caller_pmap,
+ vm_map_offset_t caller_pmap_addr);
+
/*
* Page fault handling based on vm_object only.
*/
extern vm_fault_return_t vm_fault_page(
- /* Arguments: */
- vm_object_t first_object, /* Object to begin search */
- vm_object_offset_t first_offset,/* Offset into object */
- vm_prot_t fault_type, /* What access is requested */
- boolean_t must_be_resident,/* Must page be resident? */
- int interruptible,/* how may fault be interrupted */
- vm_map_offset_t lo_offset, /* Map entry start */
- vm_map_offset_t hi_offset, /* Map entry end */
- vm_behavior_t behavior, /* Expected paging behavior */
- /* Modifies in place: */
- vm_prot_t *protection, /* Protection for mapping */
- /* Returns: */
- vm_page_t *result_page, /* Page found, if successful */
- vm_page_t *top_page, /* Page in top object, if
- * not result_page. */
- int *type_of_fault, /* if non-zero, return COW, zero-filled, etc...
- * used by kernel trace point in vm_fault */
- /* More arguments: */
- kern_return_t *error_code, /* code if page is in error */
- boolean_t no_zero_fill, /* don't fill absent pages */
- boolean_t data_supply, /* treat as data_supply */
- vm_map_t map,
- vm_map_offset_t vaddr);
+ /* Arguments: */
+ vm_object_t first_object, /* Object to begin search */
+ vm_object_offset_t first_offset, /* Offset into object */
+ vm_prot_t fault_type, /* What access is requested */
+ boolean_t must_be_resident, /* Must page be resident? */
+ boolean_t caller_lookup, /* caller looked up page */
+ /* Modifies in place: */
+ vm_prot_t *protection, /* Protection for mapping */
+ vm_page_t *result_page, /* Page found, if successful */
+ /* Returns: */
+ vm_page_t *top_page, /* Page in top object, if
+ * not result_page. */
+ int *type_of_fault, /* if non-zero, return COW, zero-filled, etc...
+ * used by kernel trace point in vm_fault */
+ /* More arguments: */
+ kern_return_t *error_code, /* code if page is in error */
+ boolean_t no_zero_fill, /* don't fill absent pages */
+ boolean_t data_supply, /* treat as data_supply */
+ vm_object_fault_info_t fault_info);
extern void vm_fault_cleanup(
- vm_object_t object,
- vm_page_t top_page);
+ vm_object_t object,
+ vm_page_t top_page);
extern kern_return_t vm_fault_wire(
- vm_map_t map,
- vm_map_entry_t entry,
- pmap_t pmap,
- vm_map_offset_t pmap_addr);
+ vm_map_t map,
+ vm_map_entry_t entry,
+ vm_prot_t prot,
+ vm_tag_t wire_tag,
+ pmap_t pmap,
+ vm_map_offset_t pmap_addr,
+ ppnum_t *physpage_p);
extern void vm_fault_unwire(
- vm_map_t map,
- vm_map_entry_t entry,
- boolean_t deallocate,
- pmap_t pmap,
- vm_map_offset_t pmap_addr);
-
-extern kern_return_t vm_fault_copy(
- vm_object_t src_object,
- vm_object_offset_t src_offset,
- vm_map_size_t *copy_size, /* INOUT */
- vm_object_t dst_object,
- vm_object_offset_t dst_offset,
- vm_map_t dst_map,
- vm_map_version_t *dst_version,
- int interruptible);
-
-#endif /* MACH_KERNEL_PRIVATE */
-
-#endif /* KERNEL_PRIVATE */
-
-#endif /* _VM_VM_FAULT_H_ */
+ vm_map_t map,
+ vm_map_entry_t entry,
+ boolean_t deallocate,
+ pmap_t pmap,
+ vm_map_offset_t pmap_addr);
+
+extern kern_return_t vm_fault_copy(
+ vm_object_t src_object,
+ vm_object_offset_t src_offset,
+ vm_map_size_t *copy_size, /* INOUT */
+ vm_object_t dst_object,
+ vm_object_offset_t dst_offset,
+ vm_map_t dst_map,
+ vm_map_version_t *dst_version,
+ int interruptible);
+
+extern kern_return_t vm_fault_enter(
+ vm_page_t m,
+ pmap_t pmap,
+ vm_map_offset_t vaddr,
+ vm_prot_t prot,
+ vm_prot_t fault_type,
+ boolean_t wired,
+ boolean_t change_wiring,
+ vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */
+ vm_object_fault_info_t fault_info,
+ boolean_t *need_retry,
+ int *type_of_fault);
+
+extern vm_offset_t kdp_lightweight_fault(
+ vm_map_t map,
+ vm_offset_t cur_target_addr);
+
+extern void vm_rtfault_record_init(void);
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* KERNEL_PRIVATE */
+
+#endif /* _VM_VM_FAULT_H_ */
projects / apple / xnu.git / blobdiff