--- a/usr/src/uts/i86pc/os/cpuid.c	Sat Dec 20 07:26:17 2008 +0800
+++ b/usr/src/uts/i86pc/os/cpuid.c	Fri Dec 19 15:50:38 2008 -0800
@@ -2065,6 +2065,8 @@
 				hwcap_flags |= AV_386_SSE4_1;
 			if (*ecx & CPUID_INTC_ECX_SSE4_2)
 				hwcap_flags |= AV_386_SSE4_2;
+			if (*ecx & CPUID_INTC_ECX_MOVBE)
+				hwcap_flags |= AV_386_MOVBE;
 		}
 		if (*ecx & CPUID_INTC_ECX_POPCNT)
 			hwcap_flags |= AV_386_POPCNT;