Index: kernel/arch/amd64/include/cpu.h
===================================================================
--- kernel/arch/amd64/include/cpu.h	(revision 7a0359b903311f67678b4a0a3ebbcf0daf6eab38)
+++ kernel/arch/amd64/include/cpu.h	(revision 80c941658b6963ac942c8ada940935259b73c370)
@@ -45,4 +45,5 @@
 #define RFLAGS_DF	(1 << 10)
 #define RFLAGS_OF	(1 << 11)
+#define RFLAGS_NT	(1 << 14)
 #define RFLAGS_RF	(1 << 16)