Index: /trunk/include/VBox/err.h
===================================================================
--- /trunk/include/VBox/err.h	(revision 27458)
+++ /trunk/include/VBox/err.h	(revision 27459)
@@ -469,4 +469,6 @@
 /** Unable to use the range for a large page. */
 #define VERR_PGM_INVALID_LARGE_PAGE_RANGE       (-1645)
+/** Don't mess around with ballooned pages. */
+#define VERR_PGM_PHYS_PAGE_BALLOONED            (-1646)
 /** @} */