sim: Expose the current clock period as a stat

This patch adds observability to the clock period of the clock domains
by including it as a stat.

As a result of adding this, the regressions will be updated in a
separate patch.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/sim/clock_domain.hh b/src/sim/clock_domain.hh
index e6b7273c1..b597b6611 100644
--- a/src/sim/clock_domain.hh
+++ b/src/sim/clock_domain.hh
@@ -72,6 +72,13 @@ class ClockedObject;
 class ClockDomain : public SimObject
 {
 
+  private:
+
+    /**
+     * Stat to report clock period of clock domain
+     */
+    Stats::Value currentClock;
+
   protected:
 
     /**
@@ -105,6 +112,8 @@ class ClockDomain : public SimObject
         _clockPeriod(0),
         _voltageDomain(voltage_domain) {}
 
+    void regStats();
+
     /**
      * Get the clock period.
      *