diff --git a/core/pta/tests/misc.c b/core/pta/tests/misc.c
index 95404d8a767..5c43c62cce2 100644
--- a/core/pta/tests/misc.c
+++ b/core/pta/tests/misc.c
@@ -230,6 +230,87 @@ static TEE_Result test1_it_notif_do(void)
 	return res;
 }
 
+/*
+ * Test1: test interrupt event during REE interrupt context
+ */
+
+static void test2_notif_set_mask(struct notif_it *notif_it, bool do_mask)
+{
+	if (!do_mask)
+		return;
+
+	if (notif_it->id == idx2id(0))
+		notif_it_raise_event(test_it_notif + 1);
+	else if (notif_it->id == idx2id(1))
+		notif_it_raise_event(test_it_notif + 2);
+	else if (notif_it->id == idx2id(2))
+		notif_it_raise_event(test_it_notif + 3);
+}
+DECLARE_KEEP_PAGER(test2_notif_set_mask);
+
+const struct notif_it_ops test2_notif_ops = {
+	.set_mask = test2_notif_set_mask,
+};
+
+static TEE_Result test2_it_notif_do(void)
+{
+	TEE_Result res = TEE_SUCCESS;
+	size_t n = 0;
+
+	static_assert(TEST_IT_NOTIF_CNT >= 4);
+
+	for (n = 0; n <= 3; n++) {
+		res = register_test_it_notif(n, &test2_notif_ops);
+		if (res)
+			goto out;
+	}
+
+	IMSG("It-notif: test interrupt during interrupt ");
+
+	for (n = 0; n <= 3; n++)
+		notif_it_set_mask(idx2id(n), 0);
+
+	/*
+	 * This test simulates cases where an interrupt is notified and
+	 * under processing in REE, in an interrupt context, while another
+	 * OP-TEE event raises a notification. The goal is to check the 2nd
+	 * notification is well signaled to REE and not pending.
+	 *
+	 * Raise test interrupt #0. In return, REE will mask it because
+	 * it has no consumer in Linux kernel. During mask opertion,
+	 * test interrupt #0 raises #1, #1 raises #2, #2 raises #3.
+	 * So raising #n makes #n to #3 be raised and masked back by REE.
+	 *
+	 * Check that all interrupts are consumed, with 2, 3 or 4 linked
+	 * interrupts.
+	 */
+	notif_it_raise_event(test_it_notif + 0);
+	mdelay(10);
+
+	for (n = 0; n <= 3; n++)
+		if (test_it_is_pending(n))
+			break;
+
+	if (n < 4) {
+		EMSG("Test ITs notif are still pending");
+		res = TEE_ERROR_GENERIC;
+		goto out;
+	}
+
+	for (n = 0; n <= 3; n++)
+		notif_it_set_mask(idx2id(n), 1);
+
+out:
+	unregister_test_all_notif();
+
+	if (res)
+		EMSG("Test it-notif failed: %#"PRIx32, res);
+	else
+		IMSG("It-notif: test successful");
+
+	return res;
+}
+
 static TEE_Result test_it_notif_do(void)
 {
 	TEE_Result res = TEE_ERROR_GENERIC;