diff --git a/sys/arch/x86/x86/procfs_machdep.c b/sys/arch/x86/x86/procfs_machdep.c
index 4f1312b1fd08..5be8d98dd7a7 100644
--- a/sys/arch/x86/x86/procfs_machdep.c
+++ b/sys/arch/x86/x86/procfs_machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: procfs_machdep.c,v 1.12 2016/04/27 08:45:22 msaitoh Exp $ */
+/*	$NetBSD: procfs_machdep.c,v 1.13 2016/08/08 09:39:06 msaitoh Exp $ */
 
 /*
  * Copyright (c) 2001 Wasabi Systems, Inc.
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.12 2016/04/27 08:45:22 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.13 2016/08/08 09:39:06 msaitoh Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -61,13 +61,13 @@ __KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.12 2016/04/27 08:45:22 msaitoh
  *  x86/include/asm/cpufeatures.h.
  */
 static const char * const x86_features[][32] = {
-	{ /* (0) Common */
+	{ /* (0) Common: 0x0000001 edx */
 	"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
 	"cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
 	"pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
 	"fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe"},
 
-	{ /* (1) AMD-defined: 80000001 edx */
+	{ /* (1) AMD-defined: 0x80000001 edx */
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
@@ -86,7 +86,7 @@ static const char * const x86_features[][32] = {
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
 
-	{ /* (4) Intel-defined: 80000001 ecx */
+	{ /* (4) Intel-defined: 0x00000001 ecx */
 	"pni", "pclmulqdq", "dtes64", "monitor", "ds_cpl", "vmx", "smx", "est",
 	"tm2", "ssse3", "cid", "sdbg", "fma", "cx16", "xtpr", "pdcm",
 	NULL, "pcid", "dca", "sse4_1", "sse4_2", "x2apic", "movbe", "popcnt",
@@ -95,7 +95,7 @@ static const char * const x86_features[][32] = {
 
 	{ /* (5) VIA/Cyrix/Centaur-defined */
 	NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
-	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+	"ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},