4.8.5

internal/service/cloudapi/kvmvm/resource_compute.go

@@ -866,10 +866,14 @@ func resourceComputeUpdate(ctx context.Context, d *schema.ResourceData, m interf
 		}
 	}
 
-	// Note bene: numa_affinity, cpu_pin and hp_backed, cpu, ram are not allowed to be changed for compute in STARTED tech status.
+	// Note bene: numa_affinity, cpu_pin, old_cpu > new_cpu and hp_backed are not allowed to be changed for compute in STARTED tech status.
 	// If STARTED, we need to stop it before update
 	var isStopRequired bool
-	if d.HasChanges("numa_affinity", "cpu_pin", "hp_backed", "chipset", "preferred_cpu", "ram", "cpu") && d.Get("started").(bool) {
+	if d.HasChanges("numa_affinity", "cpu_pin", "hp_backed", "chipset", "preferred_cpu") && d.Get("started").(bool) {
+		isStopRequired = true
+	}
+	old, new := d.GetChange("cpu")
+	if old.(int) > new.(int) && d.Get("started").(bool) {
 		isStopRequired = true
 	}
 	if isStopRequired {