diff --git a/devicemodel/hw/pci/xhci.c b/devicemodel/hw/pci/xhci.c
index 2d1697ec6..21adf2ba6 100644
--- a/devicemodel/hw/pci/xhci.c
+++ b/devicemodel/hw/pci/xhci.c
@@ -256,6 +256,7 @@ struct pci_xhci_vdev {
 
 	int		usb2_port_start;
 	int		usb3_port_start;
+	uint8_t		*native_assign_ports[USB_NATIVE_NUM_BUS];
 };
 
 /* portregs and devices arrays are set up to start from idx=1 */
@@ -369,6 +370,26 @@ pci_xhci_native_usb_dev_conn_cb(void *hci_data, void *dev_data)
 	UPRINTF(LDBG, "%X:%X %d-%d connecting.\r\n",
 			native_vid, native_pid, native_bus, native_port);
 
+	/* FIXME: will support usb3 in future */
+	if (xdev->native_assign_ports[native_bus] &&
+			usb_native_is_ss_port(native_bus)) {
+		UPRINTF(LDBG, "%X:%X %d-%d not support usb3 device, exit.\r\n",
+				native_vid, native_pid, native_bus,
+				native_port);
+		goto errout;
+	}
+
+	if (!xdev->native_assign_ports[native_bus] ||
+			!xdev->native_assign_ports[native_bus][native_port]) {
+		UPRINTF(LDBG, "%X:%X %d-%d doesn't belong to this vm, bye.\r\n",
+				native_vid, native_pid, native_bus,
+				native_port);
+		goto errout;
+	}
+
+	UPRINTF(LDBG, "%X:%X %d-%d belong to this vm.\r\n", native_vid,
+			native_pid, native_bus, native_port);
+
 	if (ue->ue_usbver == 2)
 		port_start = xdev->usb2_port_start;
 	else
diff --git a/devicemodel/include/usb_core.h b/devicemodel/include/usb_core.h
index a482df03e..b535bb7c2 100644
--- a/devicemodel/include/usb_core.h
+++ b/devicemodel/include/usb_core.h
@@ -199,6 +199,8 @@ enum USB_ERRCODE {
 #define NATIVE_USBSYS_DEVDIR "/sys/bus/usb/devices"
 #define NATIVE_USB2_SPEED "480"
 #define NATIVE_USB3_SPEED "5000"
+#define USB_NATIVE_NUM_PORT 255
+#define USB_NATIVE_NUM_BUS 255
 
 extern int usb_log_level;
 inline int usb_get_log_level(void)		{ return usb_log_level; }