diff --git a/include/common/test_helpers.h b/include/common/test_helpers.h
index 40cc96f..c51c785 100644
--- a/include/common/test_helpers.h
+++ b/include/common/test_helpers.h
@@ -429,4 +429,15 @@
  * RXTX buffers.
  */
 bool mailbox_init(struct mailbox_buffers mb);
+/*
+ * Utility function to wait for all CPUs other than the caller to be
+ * OFF.
+ */
+void wait_for_non_lead_cpus(void);
+
+/*
+ * Utility function to wait for a given CPU other than the caller to be
+ * OFF.
+ */
+void wait_for_core_to_turn_off(unsigned int mpidr);
 #endif /* __TEST_HELPERS_H__ */