X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..7e41aa883dd258f888d0470250eead40a53ef1f5:/osfmk/vm/vm_fault.h

diff --git a/osfmk/vm/vm_fault.h b/osfmk/vm/vm_fault.h
index 65b60936e..d6824c4fd 100644
--- a/osfmk/vm/vm_fault.h
+++ b/osfmk/vm/vm_fault.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -20,7 +23,7 @@
  * 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@
@@ -61,22 +64,44 @@
 #ifndef	_VM_VM_FAULT_H_
 #define _VM_VM_FAULT_H_
 
+#include <mach/mach_types.h>
 #include <mach/kern_return.h>
 #include <mach/boolean.h>
 #include <mach/vm_prot.h>
 #include <mach/vm_param.h>
 #include <mach/vm_behavior.h>
-#include <vm/vm_page.h>
-#include <vm/vm_object.h>
-#include <vm/vm_map.h>
+
+#ifdef	KERNEL_PRIVATE
 
 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_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);
+
+extern void vm_pre_fault(vm_map_offset_t);
+
+#ifdef	MACH_KERNEL_PRIVATE
+
+#include <vm/vm_page.h>
+#include <vm/vm_object.h>
+#include <vm/vm_map.h>
 
 extern void vm_fault_init(void);
 
@@ -90,14 +115,11 @@ extern vm_fault_return_t vm_fault_page(
 		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_object_offset_t lo_offset,	/* Map entry start */
-		vm_object_offset_t hi_offset,	/* Map entry end */
-		vm_behavior_t	behavior,	/* Expected paging behavior */
+		boolean_t	caller_lookup,	/* caller looked up page */
 		/* Modifies in place: */
 		vm_prot_t	*protection,	/* Protection for mapping */
-		/* Returns: */
 		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...
@@ -106,46 +128,60 @@ extern vm_fault_return_t vm_fault_page(
 		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_offset_t	vaddr);
+	        vm_object_fault_info_t fault_info);
 
 extern void vm_fault_cleanup(
 		vm_object_t	object,
 		vm_page_t	top_page);
-/*
- *	Page fault handling based on vm_map (or entries therein)
- */
-
-extern kern_return_t vm_fault(
-		vm_map_t	map,
-		vm_offset_t	vaddr,
-		vm_prot_t	fault_type,
-		boolean_t	change_wiring,
-		int             interruptible,
-		pmap_t		pmap,
-		vm_offset_t	pmap_addr);
 
 extern kern_return_t vm_fault_wire(
 		vm_map_t	map,
 		vm_map_entry_t	entry,
+		vm_prot_t       prot,
 		pmap_t		pmap,
-		vm_offset_t	pmap_addr);
+		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_offset_t	pmap_addr);
+		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_size_t		*src_size,	/* INOUT */
+		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,
+	boolean_t no_cache,
+	boolean_t cs_bypass,
+	int	  user_tag,
+	int	  pmap_options,
+	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,
+		uint32_t *fault_results);
+
+
+#endif	/* MACH_KERNEL_PRIVATE */
+
+#endif	/* KERNEL_PRIVATE */
+
 #endif	/* _VM_VM_FAULT_H_ */