--- kvm-trunk/kernel/external-module-compat.h	2007-05-23 13:28:47.000000000 +0200
+++ kvm-trunk_old/kernel/external-module-compat.h	2007-05-23 11:01:54.000000000 +0200
@@ -151,3 +151,17 @@
 #define CPU_DEAD_FROZEN                (CPU_DEAD | CPU_TASKS_FROZEN)
 
 #endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
+
+#ifndef _EFER_SCE
+#define _EFER_SCE		0  /* SYSCALL/SYSRET */
+#endif
+
+#ifndef EFER_SCE
+#define EFER_SCE		(1<<_EFER_SCE)
+#endif
+
+#endif
+
+