diff -r 1831912d4109 tools/python/xen/xend/server/tpmif.py
--- a/tools/python/xen/xend/server/tpmif.py	Thu Sep 02 19:12:42 2010 +0100
+++ b/tools/python/xen/xend/server/tpmif.py	Fri Sep 03 16:10:26 2010 -0400
@@ -44,6 +44,22 @@
         DevController.__init__(self, vm)
 
 
+    def createDevice(self, config):
+        #Disable hotplug scripts if backend is not dom0
+        import xen.xend.XendDomain
+        xd = xen.xend.XendDomain.instance()
+        backdom_name = config.get('backend')
+        if backdom_name is None:
+            backdom = xen.xend.XendDomain.DOM0_ID
+        else:
+            bd = xd.domain_lookup_nr(backdom_name)
+            backdom = bd.getDomid()
+
+	if backdom != xen.xend.XendDomain.DOM0_ID:
+	   self.hotplug = False
+
+        return DevController.createDevice(self, config)
+
     def getDeviceDetails(self, config):
         """@see DevController.getDeviceDetails"""