Index: xen-unstable.hg/xen/include/asm-ia64/xensystem.h
===================================================================
--- xen-unstable.hg.orig/xen/include/asm-ia64/xensystem.h	2007-12-05 19:39:20.000000000 +0900
+++ xen-unstable.hg/xen/include/asm-ia64/xensystem.h	2007-12-05 19:39:27.000000000 +0900
@@ -31,6 +31,7 @@
 #define XEN_VIRT_UC_BIT	 57
 
 #define KERNEL_START		 0xf400000004000000
+#define XEN_HEAP_ADDR		 0xf000000004000000
 #define GATE_ADDR		 KERNEL_START
 
 /* In order for Kexec between Xen and Linux to work EFI needs