1 files changed, 8 insertions, 0 deletions

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index ba6e65884603..ad80a1c718c6 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -34,6 +34,8 @@
  */
 unsigned long                           hpet_address;
 u8                                      hpet_blockid; /* OS timer block num */
+u8                                      hpet_msi_disable;
+
 #ifdef CONFIG_PCI_MSI
 static unsigned long                    hpet_num_timers;
 #endif
@@ -596,6 +598,9 @@ static void hpet_msi_capability_lookup(unsigned int start_timer)
         unsigned int num_timers_used = 0;
         int i;
 
+        if (hpet_msi_disable)
+                return;
+
         if (boot_cpu_has(X86_FEATURE_ARAT))
                 return;
         id = hpet_readl(HPET_ID);
@@ -928,6 +933,9 @@ static __init int hpet_late_init(void)
         hpet_reserve_platform_timers(hpet_readl(HPET_ID));
         hpet_print_config();
 
+        if (hpet_msi_disable)
+                return 0;
+
         if (boot_cpu_has(X86_FEATURE_ARAT))
                 return 0;