--- linux-2.6.17.8.orig/include/asm-x86_64/msr.h	2006-08-06 21:18:54.000000000 -0700
+++ linux-2.6.17.8/include/asm-x86_64/msr.h	2006-08-20 14:40:52.000000000 -0700
@@ -396,4 +396,7 @@ static inline unsigned int cpuid_edx(uns
 #define MSR_P4_U2L_ESCR0 		0x3b0
 #define MSR_P4_U2L_ESCR1 		0x3b1
 
+#define MSR_IA32_PEBS_ENABLE		0x3f1
+#define MSR_PEBS_MATRIX_VERT		0x3f2
+
 #endif