diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 464d893..07bec09 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -71,7 +71,14 @@
 	 but will have no xen contents.
 
 config XEN_XENBUS_FRONTEND
-       tristate
+	tristate
+
+config XEN_GNTDEV
+	tristate "userspace grant access device driver"
+	depends on XEN
+	select MMU_NOTIFIER
+	help
+	  Allows userspace processes to use grants.
 
 config XEN_PLATFORM_PCI
 	tristate "xen platform pci device driver"