diff --git a/hypervisor/arch/x86/guest/vcpu.c b/hypervisor/arch/x86/guest/vcpu.c
index 40ed92530..1207f8b97 100644
--- a/hypervisor/arch/x86/guest/vcpu.c
+++ b/hypervisor/arch/x86/guest/vcpu.c
@@ -365,21 +365,9 @@ void set_vcpu_startup_entry(struct acrn_vcpu *vcpu, uint64_t entry)
 	vcpu_set_rip(vcpu, 0UL);
 }
 
-/***********************************************************************
- *
+/*
  *  @pre vm != NULL && rtn_vcpu_handle != NULL
- *
- * vcpu_id/pcpu_id mapping table:
- *
- * if
- *     SOS_VM_CPUS[2] = {0, 2} , VM1_CPUS[2] = {3, 1};
- * then
- *     for physical CPU 0 : vcpu->pcpu_id = 0, vcpu->vcpu_id = 0, vmid = 0;
- *     for physical CPU 2 : vcpu->pcpu_id = 2, vcpu->vcpu_id = 1, vmid = 0;
- *     for physical CPU 3 : vcpu->pcpu_id = 3, vcpu->vcpu_id = 0, vmid = 1;
- *     for physical CPU 1 : vcpu->pcpu_id = 1, vcpu->vcpu_id = 1, vmid = 1;
- *
- ***********************************************************************/
+ */
 int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn_vcpu_handle)
 {
 	struct acrn_vcpu *vcpu;
@@ -599,7 +587,6 @@ void offline_vcpu(struct acrn_vcpu *vcpu)
 {
 	vlapic_free(vcpu);
 	per_cpu(ever_run_vcpu, vcpu->pcpu_id) = NULL;
-	free_pcpu(vcpu->pcpu_id);
 	vcpu->state = VCPU_OFFLINE;
 }
 
@@ -761,8 +748,6 @@ int32_t prepare_vcpu(struct acrn_vm *vm, uint16_t pcpu_id)
 
 	ret = create_vcpu(pcpu_id, vm, &vcpu);
 	if (ret == 0) {
-		set_pcpu_used(pcpu_id);
-
 		INIT_LIST_HEAD(&vcpu->sched_obj.run_list);
 		snprintf(thread_name, 16U, "vm%hu:vcpu%hu", vm->vm_id, vcpu->vcpu_id);
 		(void)strncpy_s(vcpu->sched_obj.name, 16U, thread_name, 16U);
diff --git a/hypervisor/common/schedule.c b/hypervisor/common/schedule.c
index aaf58d580..175eaca6b 100644
--- a/hypervisor/common/schedule.c
+++ b/hypervisor/common/schedule.c
@@ -13,8 +13,6 @@
 #include <schedule.h>
 #include <sprintf.h>
 
-static uint64_t pcpu_used_bitmap;
-
 void init_scheduler(void)
 {
 	struct sched_context *ctx;
@@ -43,32 +41,6 @@ void release_schedule_lock(uint16_t pcpu_id)
 	spinlock_release(&ctx->scheduler_lock);
 }
 
-uint16_t allocate_pcpu(void)
-{
-	uint16_t i;
-	uint16_t ret = INVALID_CPU_ID;
-	uint16_t pcpu_nums = get_pcpu_nums();
-
-	for (i = 0U; i < pcpu_nums; i++) {
-		if (bitmap_test_and_set_lock(i, &pcpu_used_bitmap) == 0) {
-			ret = i;
-			break;
-		}
-	}
-
-	return ret;
-}
-
-void set_pcpu_used(uint16_t pcpu_id)
-{
-	bitmap_set_lock(pcpu_id, &pcpu_used_bitmap);
-}
-
-void free_pcpu(uint16_t pcpu_id)
-{
-	bitmap_clear_lock(pcpu_id, &pcpu_used_bitmap);
-}
-
 void add_to_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id)
 {
 	struct sched_context *ctx = &per_cpu(sched_ctx, pcpu_id);
diff --git a/hypervisor/include/common/schedule.h b/hypervisor/include/common/schedule.h
index b82533494..1d7e229f1 100644
--- a/hypervisor/include/common/schedule.h
+++ b/hypervisor/include/common/schedule.h
@@ -37,10 +37,6 @@ void switch_to_idle(run_thread_t idle_thread);
 void get_schedule_lock(uint16_t pcpu_id);
 void release_schedule_lock(uint16_t pcpu_id);
 
-void set_pcpu_used(uint16_t pcpu_id);
-uint16_t allocate_pcpu(void);
-void free_pcpu(uint16_t pcpu_id);
-
 void add_to_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id);
 void remove_from_cpu_runqueue(struct sched_object *obj);