x86: consistent about warm_reset_vector for UN_NON_UNIQUE_APIC

Impact: cleanup

didn't set it for UV_NON_UNIQUE_APIC, so don't restore it
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
LKML-Reference: <49D6A6B9.6060501@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/smpboot.c

@@ -822,10 +822,12 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
 	/* mark "stuck" area as not stuck */
 	*((volatile unsigned long *)trampoline_base) = 0;
 
-	/*
-	 * Cleanup possible dangling ends...
-	 */
-	smpboot_restore_warm_reset_vector();
+	if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
+		/*
+		 * Cleanup possible dangling ends...
+		 */
+		smpboot_restore_warm_reset_vector();
+	}
 
 	return boot_error;
 }