diff --git a/lib/libpmc/libpmc.c b/lib/libpmc/libpmc.c
index c6e31f6c3d7d..21bd9952e99c 100644
--- a/lib/libpmc/libpmc.c
+++ b/lib/libpmc/libpmc.c
@@ -603,7 +603,8 @@ iap_allocate_pmc(enum pmc_event pe, char *ctrspec,
 			if (n != 1)
 				return (-1);
 		} else if (cpu_info.pm_cputype == PMC_CPU_INTEL_ATOM ||
-		    cpu_info.pm_cputype == PMC_CPU_INTEL_CORE2) {
+		    cpu_info.pm_cputype == PMC_CPU_INTEL_CORE2 ||
+		    cpu_info.pm_cputype == PMC_CPU_INTEL_CORE2EXTREME) {
 			if (KWMATCH(p, IAP_KW_SNOOPRESPONSE)) {
 				n = pmc_parse_mask(iap_snoopresponse_mask, p,
 				    &evmask);
@@ -2273,6 +2274,7 @@ pmc_event_names_of_class(enum pmc_class cl, const char ***eventnames,
 			count = PMC_EVENT_TABLE_SIZE(core);
 			break;
 		case PMC_CPU_INTEL_CORE2:
+		case PMC_CPU_INTEL_CORE2EXTREME:
 			ev = core2_event_table;
 			count = PMC_EVENT_TABLE_SIZE(core2);
 			break;
@@ -2455,6 +2457,7 @@ pmc_init(void)
 		pmc_class_table[n] = &core_class_table_descr;
 		break;
 	case PMC_CPU_INTEL_CORE2:
+	case PMC_CPU_INTEL_CORE2EXTREME:
 		PMC_MDEP_INIT(core2);
 		pmc_class_table[n++] = &iaf_class_table_descr;
 		pmc_class_table[n]   = &core2_class_table_descr;
@@ -2553,6 +2556,7 @@ _pmc_name_of_event(enum pmc_event pe, enum pmc_cputype cpu)
 			evfence = core_event_table + PMC_EVENT_TABLE_SIZE(core);
 			break;
 		case PMC_CPU_INTEL_CORE2:
+		case PMC_CPU_INTEL_CORE2EXTREME:
 			ev = core2_event_table;
 			evfence = core2_event_table + PMC_EVENT_TABLE_SIZE(core2);
 			break;
diff --git a/sys/dev/hwpmc/hwpmc_core.c b/sys/dev/hwpmc/hwpmc_core.c
index f6214f5895d6..c34a96993d00 100644
--- a/sys/dev/hwpmc/hwpmc_core.c
+++ b/sys/dev/hwpmc/hwpmc_core.c
@@ -527,8 +527,8 @@ struct iap_event_descr {
 };
 
 #define	IAP_F_CC	(1 << 0)	/* CPU: Core */
-#define	IAP_F_CC2	(1 << 1)	/* CPU: Core2 */
-#define	IAP_F_CC2E	(1 << 2)	/* CPU: Core2 Extreme */
+#define	IAP_F_CC2	(1 << 1)	/* CPU: Core2 family */
+#define	IAP_F_CC2E	(1 << 2)	/* CPU: Core2 Extreme only */
 #define	IAP_F_CA	(1 << 3)	/* CPU: Atom */
 #define	IAP_F_FM	(1 << 4)	/* Fixed mask */
 
@@ -1111,7 +1111,7 @@ iap_allocate_pmc(int cpu, int ri, struct pmc *pm,
 		cpuflag = IAP_F_CC2;
 		break;
 	case PMC_CPU_INTEL_CORE2EXTREME:
-		cpuflag = IAP_F_CC2E;
+		cpuflag = IAP_F_CC2 | IAP_F_CC2E;
 		break;
 	}
 
diff --git a/sys/dev/hwpmc/hwpmc_intel.c b/sys/dev/hwpmc/hwpmc_intel.c
index 7532559b2891..49031c343dc7 100644
--- a/sys/dev/hwpmc/hwpmc_intel.c
+++ b/sys/dev/hwpmc/hwpmc_intel.c
@@ -168,6 +168,7 @@ pmc_intel_initialize(void)
 	case PMC_CPU_INTEL_ATOM:
 	case PMC_CPU_INTEL_CORE:
 	case PMC_CPU_INTEL_CORE2:
+	case PMC_CPU_INTEL_CORE2EXTREME:
 		error = pmc_core_initialize(pmc_mdep, ncpus);
 		break;
 
@@ -238,6 +239,7 @@ pmc_intel_finalize(struct pmc_mdep *md)
 	case PMC_CPU_INTEL_ATOM:
 	case PMC_CPU_INTEL_CORE:
 	case PMC_CPU_INTEL_CORE2:
+	case PMC_CPU_INTEL_CORE2EXTREME:
 		pmc_core_finalize(md);
 		break;