init gnumach copy

1 files changed, 81 insertions, 0 deletions

diff --git a/vm/vm_fault.h b/vm/vm_fault.h
new file mode 100644
index 0000000..ae692b1
--- /dev/null
+++ b/vm/vm_fault.h
@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+/*
+ *	File:	vm/vm_fault.h
+ *
+ *	Page fault handling module declarations.
+ */
+
+#ifndef	_VM_VM_FAULT_H_
+#define _VM_VM_FAULT_H_
+
+#include <mach/kern_return.h>
+#include <mach/vm_prot.h>
+#include <vm/vm_map.h>
+#include <vm/vm_types.h>
+
+/*
+ *	Page fault handling based on vm_object only.
+ */
+
+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
+
+typedef void (*vm_fault_continuation_t)(kern_return_t);
+#define vm_fault_no_continuation ((vm_fault_continuation_t)0)
+
+extern void vm_fault_init(void);
+extern vm_fault_return_t vm_fault_page(vm_object_t, vm_offset_t, vm_prot_t,
+				       boolean_t, boolean_t, vm_prot_t *,
+				       vm_page_t *, vm_page_t *, boolean_t,
+				       continuation_t);
+
+extern void		vm_fault_cleanup(vm_object_t, vm_page_t);
+/*
+ *	Page fault handling based on vm_map (or entries therein)
+ */
+
+extern kern_return_t	vm_fault(vm_map_t, vm_offset_t, vm_prot_t, boolean_t,
+				 boolean_t, vm_fault_continuation_t);
+extern void		vm_fault_wire(vm_map_t, vm_map_entry_t);
+extern void		vm_fault_unwire(vm_map_t, vm_map_entry_t);
+
+/* Copy pages from one object to another.  */
+extern kern_return_t	vm_fault_copy(vm_object_t, vm_offset_t, vm_size_t *,
+				      vm_object_t, vm_offset_t, vm_map_t,
+				      vm_map_version_t *, boolean_t);
+
+kern_return_t vm_fault_wire_fast(
+	vm_map_t	map,
+	vm_offset_t	va,
+	vm_map_entry_t	entry);
+
+#endif	/* _VM_VM_FAULT_H_ */