diff --git a/system/cpu-throttle.c b/system/cpu-throttle.c
index c951a6c65e..7632dc6143 100644
--- a/system/cpu-throttle.c
+++ b/system/cpu-throttle.c
@@ -28,6 +28,7 @@
 #include "qemu/main-loop.h"
 #include "sysemu/cpus.h"
 #include "sysemu/cpu-throttle.h"
+#include "trace.h"
 
 /* vcpu throttling controls */
 static QEMUTimer *throttle_timer;
@@ -95,6 +96,8 @@ void cpu_throttle_set(int new_throttle_pct)
      */
     bool throttle_active = cpu_throttle_active();
 
+    trace_cpu_throttle_set(new_throttle_pct);
+
     /* Ensure throttle percentage is within valid range */
     new_throttle_pct = MIN(new_throttle_pct, CPU_THROTTLE_PCT_MAX);
     new_throttle_pct = MAX(new_throttle_pct, CPU_THROTTLE_PCT_MIN);
diff --git a/system/trace-events b/system/trace-events
index 2ed1d59b1f..074d001e90 100644
--- a/system/trace-events
+++ b/system/trace-events
@@ -44,3 +44,6 @@ dirtylimit_state_finalize(void)
 dirtylimit_throttle_pct(int cpu_index, uint64_t pct, int64_t time_us) "CPU[%d] throttle percent: %" PRIu64 ", throttle adjust time %"PRIi64 " us"
 dirtylimit_set_vcpu(int cpu_index, uint64_t quota) "CPU[%d] set dirty page rate limit %"PRIu64
 dirtylimit_vcpu_execute(int cpu_index, int64_t sleep_time_us) "CPU[%d] sleep %"PRIi64 " us"
+
+# cpu-throttle.c
+cpu_throttle_set(int new_throttle_pct)  "set guest CPU throttled by %d%%"