VM: add the vm_wire_all call

This call maps the POSIX mlockall and munlockall calls.

* Makefrag.am (include_mach_HEADERS): Add include/mach/vm_wire.h.
* include/mach/gnumach.defs (vm_wire_t): New type.
(vm_wire_all): New routine.
* include/mach/mach_types.h: Include mach/vm_wire.h.
* vm/vm_map.c: Likewise.
(vm_map_enter): Automatically wire new entries if requested.
(vm_map_copyout): Likewise.
(vm_map_pageable_all): New function.
vm/vm_map.h: Include mach/vm_wire.h.
(struct vm_map): Update description of member `wiring_required'.
(vm_map_pageable_all): New function.
* vm/vm_user.c (vm_wire_all): New function.

1 files changed, 32 insertions, 0 deletions

diff --git a/vm/vm_user.c b/vm/vm_user.c
index 46684423..6c1e3d6f 100644
--- a/vm/vm_user.c
+++ b/vm/vm_user.c
@@ -447,3 +447,35 @@ kern_return_t vm_wire(port, map, start, size, access)
 	return vm_map_pageable(map, trunc_page(start), round_page(start+size),
 			       access, TRUE, TRUE);
 }
+
+kern_return_t vm_wire_all(const ipc_port_t port, vm_map_t map, vm_wire_t flags)
+{
+	if (!IP_VALID(port))
+		return KERN_INVALID_HOST;
+
+	ip_lock(port);
+
+	if (!ip_active(port)
+	    || (ip_kotype(port) != IKOT_HOST_PRIV)) {
+		ip_unlock(port);
+		return KERN_INVALID_HOST;
+	}
+
+	ip_unlock(port);
+
+	if (map == VM_MAP_NULL) {
+		return KERN_INVALID_TASK;
+	}
+
+	if (flags & ~VM_WIRE_ALL) {
+		return KERN_INVALID_ARGUMENT;
+	}
+
+	/*Check if range includes projected buffer;
+	  user is not allowed direct manipulation in that case*/
+	if (projected_buffer_in_range(map, map->min_offset, map->max_offset)) {
+		return KERN_INVALID_ARGUMENT;
+	}
+
+	return vm_map_pageable_all(map, flags);
+}