diff --git a/hypervisor/common/sched_iorr.c b/hypervisor/common/sched_iorr.c
index 65195bd0f..d0b5ce772 100644
--- a/hypervisor/common/sched_iorr.c
+++ b/hypervisor/common/sched_iorr.c
@@ -8,6 +8,7 @@
 #include <per_cpu.h>
 #include <schedule.h>
 
+#define CONFIG_SLICE_MS 10UL
 struct sched_iorr_data {
 	/* keep list as the first item */
 	struct list_head list;
@@ -17,17 +18,48 @@ struct sched_iorr_data {
 	int64_t  left_cycles;
 };
 
-int sched_iorr_init(__unused struct sched_control *ctl)
-{
-	return 0;
-}
-
-void sched_iorr_deinit(__unused struct sched_control *ctl)
+static void sched_tick_handler(__unused void *param)
 {
 }
 
-void sched_iorr_init_data(__unused struct thread_object *obj)
+/*
+ * @pre ctl->pcpu_id == get_pcpu_id()
+ */
+int sched_iorr_init(struct sched_control *ctl)
 {
+	struct sched_iorr_control *iorr_ctl = &per_cpu(sched_iorr_ctl, ctl->pcpu_id);
+	uint64_t tick_period = CYCLES_PER_MS;
+	int ret = 0;
+
+	ASSERT(get_pcpu_id() == ctl->pcpu_id, "Init scheduler on wrong CPU!");
+
+	ctl->priv = iorr_ctl;
+	INIT_LIST_HEAD(&iorr_ctl->runqueue);
+
+	/* The tick_timer is periodically */
+	initialize_timer(&iorr_ctl->tick_timer, sched_tick_handler, ctl,
+			rdtsc() + tick_period, TICK_MODE_PERIODIC, tick_period);
+
+	if (add_timer(&iorr_ctl->tick_timer) < 0) {
+		pr_err("Failed to add schedule tick timer!");
+		ret = -1;
+	}
+	return ret;
+}
+
+void sched_iorr_deinit(struct sched_control *ctl)
+{
+	struct sched_iorr_control *iorr_ctl = (struct sched_iorr_control *)ctl->priv;
+	del_timer(&iorr_ctl->tick_timer);
+}
+
+void sched_iorr_init_data(struct thread_object *obj)
+{
+	struct sched_iorr_data *data;
+
+	data = (struct sched_iorr_data *)obj->data;
+	INIT_LIST_HEAD(&data->list);
+	data->left_cycles = data->slice_cycles = CONFIG_SLICE_MS * CYCLES_PER_MS;
 }
 
 static struct thread_object *sched_iorr_pick_next(__unused struct sched_control *ctl)