1 files changed, 6 insertions, 0 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 098ec84b8c00..f2870920f246 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -431,6 +431,12 @@ static void __cpuinit setup_APIC_timer(void)
 {
         struct clock_event_device *levt = &__get_cpu_var(lapic_events);
 
+        if (cpu_has(&current_cpu_data, X86_FEATURE_ARAT)) {
+                lapic_clockevent.features &= ~CLOCK_EVT_FEAT_C3STOP;
+                /* Make LAPIC timer preferrable over percpu HPET */
+                lapic_clockevent.rating = 150;
+        }
+
         memcpy(levt, &lapic_clockevent, sizeof(*levt));
         levt->cpumask = cpumask_of(smp_processor_id());