Index: boto-2.9.6/boto/ec2/connection.py
===================================================================
--- boto-2.9.6.orig/boto/ec2/connection.py
+++ boto-2.9.6/boto/ec2/connection.py
@@ -235,7 +235,8 @@ class EC2Connection(AWSQueryConnection):
 
     def register_image(self, name=None, description=None, image_location=None,
                        architecture=None, kernel_id=None, ramdisk_id=None,
-                       root_device_name=None, block_device_map=None):
+                       root_device_name=None, block_device_map=None,
+                       _virtualization_type=None):
         """
         Register an image.
 
@@ -283,6 +284,8 @@ class EC2Connection(AWSQueryConnection):
             params['ImageLocation'] = image_location
         if root_device_name:
             params['RootDeviceName'] = root_device_name
+        if _virtualization_type:
+            params['VirtualizationType'] = _virtualization_type
         if block_device_map:
             block_device_map.build_list_params(params)
         rs = self.get_object('RegisterImage', params, ResultSet, verb='POST')