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diff --git a/include/mach_debug/vm_info.h b/include/mach_debug/vm_info.h
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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990 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.
+ */
+/*
+ *	File:	mach_debug/vm_info.h
+ *	Author:	Rich Draves
+ *	Date:	March, 1990
+ *
+ *	Definitions for the VM debugging interface.
+ */
+
+#ifndef	_MACH_DEBUG_VM_INFO_H_
+#define _MACH_DEBUG_VM_INFO_H_
+
+#include <mach/boolean.h>
+#include <mach/machine/vm_types.h>
+#include <mach/vm_inherit.h>
+#include <mach/vm_prot.h>
+#include <mach/memory_object.h>
+
+/*
+ *	Remember to update the mig type definitions
+ *	in mach_debug_types.defs when adding/removing fields.
+ */
+
+typedef struct vm_region_info {
+	vm_offset_t vri_start;		/* start of region */
+	vm_offset_t vri_end;		/* end of region */
+
+/*vm_prot_t*/natural_t vri_protection;	/* protection code */
+/*vm_prot_t*/natural_t vri_max_protection;	/* maximum protection */
+/*vm_inherit_t*/natural_t vri_inheritance;	/* inheritance */
+	natural_t vri_wired_count;	/* number of times wired */
+	natural_t vri_user_wired_count; /* number of times user has wired */
+
+	vm_offset_t vri_object;		/* the mapped object */
+	vm_offset_t vri_offset;		/* offset into object */
+/*boolean_t*/integer_t vri_needs_copy;	/* does object need to be copied? */
+	natural_t vri_sharing;	/* share map references */
+} vm_region_info_t;
+
+typedef vm_region_info_t *vm_region_info_array_t;
+
+
+typedef natural_t vm_object_info_state_t;
+
+#define VOI_STATE_PAGER_CREATED		0x00000001
+#define VOI_STATE_PAGER_INITIALIZED	0x00000002
+#define VOI_STATE_PAGER_READY		0x00000004
+#define VOI_STATE_CAN_PERSIST		0x00000008
+#define VOI_STATE_INTERNAL		0x00000010
+#define VOI_STATE_TEMPORARY		0x00000020
+#define VOI_STATE_ALIVE			0x00000040
+#define VOI_STATE_LOCK_IN_PROGRESS	0x00000080
+#define VOI_STATE_LOCK_RESTART		0x00000100
+#define VOI_STATE_USE_OLD_PAGEOUT	0x00000200
+
+typedef struct vm_object_info {
+	vm_offset_t voi_object;		/* this object */
+	vm_size_t voi_pagesize;		/* object's page size */
+	vm_size_t voi_size;		/* object size (valid if internal) */
+	natural_t voi_ref_count;	/* number of references */
+	natural_t voi_resident_page_count; /* number of resident pages */
+	natural_t voi_absent_count;	/* number requested but not filled */
+	vm_offset_t voi_copy;		/* copy object */
+	vm_offset_t voi_shadow;		/* shadow object */
+	vm_offset_t voi_shadow_offset;	/* offset into shadow object */
+	vm_offset_t voi_paging_offset;	/* offset into memory object */
+/*memory_object_copy_strategy_t*/integer_t voi_copy_strategy;
+					/* how to handle data copy */
+	vm_offset_t voi_last_alloc;	/* offset of last allocation */
+	natural_t voi_paging_in_progress; /* paging references */
+	vm_object_info_state_t voi_state; /* random state bits */
+} vm_object_info_t;
+
+typedef vm_object_info_t *vm_object_info_array_t;
+
+
+typedef natural_t vm_page_info_state_t;
+
+#define VPI_STATE_BUSY		0x00000001
+#define VPI_STATE_WANTED	0x00000002
+#define VPI_STATE_TABLED	0x00000004
+#define VPI_STATE_FICTITIOUS	0x00000008
+#define VPI_STATE_PRIVATE	0x00000010
+#define VPI_STATE_ABSENT	0x00000020
+#define VPI_STATE_ERROR		0x00000040
+#define VPI_STATE_DIRTY		0x00000080
+#define VPI_STATE_PRECIOUS	0x00000100
+#define VPI_STATE_OVERWRITING	0x00000200
+#define VPI_STATE_INACTIVE	0x00000400
+#define VPI_STATE_ACTIVE	0x00000800
+#define VPI_STATE_LAUNDRY	0x00001000
+#define VPI_STATE_FREE		0x00002000
+#define VPI_STATE_REFERENCE	0x00004000
+
+#define VPI_STATE_PAGER		0x80000000	/* pager has the page */
+
+typedef struct vm_page_info {
+	vm_offset_t vpi_offset;		/* offset in object */
+	vm_offset_t vpi_phys_addr;	/* physical address */
+	natural_t vpi_wire_count;	/* number of times wired */
+/*vm_prot_t*/natural_t vpi_page_lock;	/* XP access restrictions */
+/*vm_prot_t*/natural_t vpi_unlock_request;	/* outstanding unlock requests */
+	vm_page_info_state_t vpi_state;	/* random state bits */
+} vm_page_info_t;
+
+typedef vm_page_info_t *vm_page_info_array_t;
+
+#endif	_MACH_DEBUG_VM_INFO_H_