Add vm_object_sync support

* include/mach/vm_sync.h: New file.
* include/mach/mach_types.h: Include <mach/vm_sync.h>
* Makefrag.am (include_mach_HEADERS): Add include/mach/vm_sync.h.
* include/mach/mach_types.defs (vm_sync_t): Add type.
* include/mach/gnumach.defs (vm_object_sync, vm_msync): Add RPCs.
* vm/vm_map.h: Include <mach/vm_sync.h>.
(vm_map_msync): New declaration.
* vm/vm_map.c (vm_map_msync): New function.
* vm/vm_user.c: Include <mach/vm_sync.h> and <kern/mach.server.h>.
(vm_object_sync, vm_msync): New functions.

4 files changed, 61 insertions, 0 deletions

diff --git a/include/mach/gnumach.defs b/include/mach/gnumach.defs
index b484accc..97ab573c 100644
--- a/include/mach/gnumach.defs
+++ b/include/mach/gnumach.defs
@@ -151,3 +151,17 @@ routine	vm_wire_all(
 		host		: mach_port_t;
 		task		: vm_task_t;
 		flags		: vm_wire_t);
+
+routine vm_object_sync(
+		object		: memory_object_name_t;
+		offset		: vm_offset_t;
+		size		: vm_size_t;
+		should_flush	: boolean_t;
+		should_return	: boolean_t;
+		should_iosync	: boolean_t);
+
+routine vm_msync(
+		target_task	: vm_task_t;
+		address		: vm_address_t;
+		size		: vm_size_t;
+		sync_flags	: vm_sync_t);
diff --git a/include/mach/mach_types.defs b/include/mach/mach_types.defs
index 8e68d385..a0e9241c 100644
--- a/include/mach/mach_types.defs
+++ b/include/mach/mach_types.defs
@@ -118,6 +118,7 @@ type vm_inherit_t = int;
 type vm_statistics_data_t = struct[13] of integer_t;
 type vm_machine_attribute_t = int;
 type vm_machine_attribute_val_t = int;
+type vm_sync_t = int;
 
 type thread_info_t		= array[*:1024] of integer_t;
 type thread_basic_info_data_t	= struct[11] of integer_t;
diff --git a/include/mach/mach_types.h b/include/mach/mach_types.h
index 65164a99..57f8f22d 100644
--- a/include/mach/mach_types.h
+++ b/include/mach/mach_types.h
@@ -54,6 +54,7 @@
 #include <mach/vm_statistics.h>
 #include <mach/vm_cache_statistics.h>
 #include <mach/vm_wire.h>
+#include <mach/vm_sync.h>
 
 #ifdef	MACH_KERNEL
 #include <kern/task.h>		/* for task_array_t */
diff --git a/include/mach/vm_sync.h b/include/mach/vm_sync.h
new file mode 100644
index 00000000..0c7451c4
--- /dev/null
+++ b/include/mach/vm_sync.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2018 Free Software Foundation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * All Rights Reserved.
+ */
+
+#ifndef	_MACH_VM_SYNC_H_
+#define	_MACH_VM_SYNC_H_
+
+/*
+ *	Types defined:
+ *
+ *	vm_sync_t		VM synchronization flags
+ */
+
+typedef int		vm_sync_t;
+
+/*
+ *	Synchronization values
+ */
+
+#define	VM_SYNC_ASYNCHRONOUS	((vm_sync_t) 0x01)
+#define	VM_SYNC_SYNCHRONOUS	((vm_sync_t) 0x02)
+#define	VM_SYNC_INVALIDATE	((vm_sync_t) 0x04)
+#if 0
+/* Not supported yet.  */
+#define	VM_SYNC_KILLPAGES	((vm_sync_t) 0x08)
+#define	VM_SYNC_DEACTIVATE	((vm_sync_t) 0x10)
+#define	VM_SYNC_CONTIGUOUS	((vm_sync_t) 0x20)
+#define	VM_SYNC_REUSABLEPAGES	((vm_sync_t) 0x40)
+#endif
+
+#endif	/* _MACH_VM_SYNC_H_ */