Inform TSC deadline clockevent device about recalibration

[kvmfornfv.git] / kernel / arch / x86 / kernel / tsc.c

diff --git a/kernel/arch/x86/kernel/tsc.c b/kernel/arch/x86/kernel/tsc.c
index c7c4d9c..eafe938 100644 (file)
--- a/kernel/arch/x86/kernel/tsc.c
+++ b/kernel/arch/x86/kernel/tsc.c
@@ -22,6 +22,7 @@
 #include <asm/nmi.h>
 #include <asm/x86_init.h>
 #include <asm/geode.h>
+#include <asm/apic.h>
 
 unsigned int __read_mostly cpu_khz;    /* TSC clocks / usec, not used here */
 EXPORT_SYMBOL(cpu_khz);
@@ -1141,6 +1142,9 @@ static void tsc_refine_calibration_work(struct work_struct *work)
                (unsigned long)tsc_khz / 1000,
                (unsigned long)tsc_khz % 1000);
 
+       /* Inform the TSC deadline clockevent devices about the recalibration */
+       lapic_update_tsc_freq();
+
 out:
        clocksource_register_khz(&clocksource_tsc, tsc_khz);
 }