diff --git a/emulator/btdev.c b/emulator/btdev.c
index c9ec22ebe..5041a68e6 100644
--- a/emulator/btdev.c
+++ b/emulator/btdev.c
@@ -33,8 +33,8 @@
 #include "monitor/bt.h"
 #include "btdev.h"
 
-#define WL_SIZE			16
-#define RL_SIZE			16
+#define WL_SIZE			3
+#define RL_SIZE			4
 #define CIS_SIZE		3
 
 #define has_bredr(btdev)	(!((btdev)->features[4] & 0x20))
@@ -190,6 +190,10 @@ struct btdev {
 	} __attribute__ ((packed)) le_cig;
 	uint8_t  le_iso_path[2];
 
+	/* Real time length of WL array */
+	uint8_t le_wl_len;
+	/* Real time length of RL array */
+	uint8_t le_rl_len;
 	struct btdev_wl le_wl[WL_SIZE];
 	struct btdev_rl le_rl[RL_SIZE];
 	uint8_t  le_rl_enable;
@@ -456,6 +460,18 @@ static void rl_clear(struct btdev *dev)
 		rl_reset(&dev->le_rl[i]);
 }
 
+/* Set the real time length of WL array */
+void btdev_set_wl_len(struct btdev *btdev, uint8_t len)
+{
+	btdev->le_wl_len = len;
+}
+
+/* Set the real time length of RL array */
+void btdev_set_rl_len(struct btdev *btdev, uint8_t len)
+{
+	btdev->le_rl_len = len;
+}
+
 static void btdev_reset(struct btdev *btdev)
 {
 	/* FIXME: include here clearing of all states that should be
@@ -467,6 +483,9 @@ static void btdev_reset(struct btdev *btdev)
 
 	wl_clear(btdev);
 	rl_clear(btdev);
+
+	btdev->le_wl_len = WL_SIZE;
+	btdev->le_rl_len = RL_SIZE;
 }
 
 static int cmd_reset(struct btdev *dev, const void *data, uint8_t len)
@@ -3495,7 +3514,7 @@ static int cmd_read_wl_size(struct btdev *dev, const void *data, uint8_t len)
 	struct bt_hci_rsp_le_read_white_list_size rsp;
 
 	rsp.status = BT_HCI_ERR_SUCCESS;
-	rsp.size = WL_SIZE;
+	rsp.size = dev->le_wl_len;
 	cmd_complete(dev, BT_HCI_CMD_LE_READ_WHITE_LIST_SIZE, &rsp,
 						sizeof(rsp));
 
@@ -3582,7 +3601,7 @@ static int cmd_add_wl(struct btdev *dev, const void *data, uint8_t len)
 	if (cmd->addr_type > 0x01)
 		return -EINVAL;
 
-	for (i = 0; i < WL_SIZE; i++) {
+	for (i = 0; i < dev->le_wl_len; i++) {
 		struct btdev_wl *wl = &dev->le_wl[i];
 
 		if (WL_ADDR_EQUAL(wl, cmd->addr_type, &cmd->addr)) {
@@ -3633,7 +3652,7 @@ static int cmd_remove_wl(struct btdev *dev, const void *data, uint8_t len)
 	if (cmd->addr_type > 0x01)
 		return -EINVAL;
 
-	for (i = 0; i < WL_SIZE; i++) {
+	for (i = 0; i < dev->le_wl_len; i++) {
 		struct btdev_wl *wl = &dev->le_wl[i];
 
 		ba2str(&wl->addr, addr);
@@ -3648,7 +3667,7 @@ static int cmd_remove_wl(struct btdev *dev, const void *data, uint8_t len)
 		}
 	}
 
-	if (i == WL_SIZE)
+	if (i == dev->le_wl_len)
 		return -EINVAL;
 
 	status = BT_HCI_ERR_SUCCESS;
@@ -3679,7 +3698,7 @@ static int cmd_add_rl(struct btdev *dev, const void *data, uint8_t len)
 	if (cmd->addr_type > 0x01)
 		return -EINVAL;
 
-	for (i = 0; i < RL_SIZE; i++) {
+	for (i = 0; i < dev->le_rl_len; i++) {
 		struct btdev_rl *rl = &dev->le_rl[i];
 
 		if (RL_ADDR_EQUAL(rl, cmd->addr_type, &cmd->addr)) {
@@ -3730,7 +3749,7 @@ static int cmd_remove_rl(struct btdev *dev, const void *data, uint8_t len)
 	if (cmd->addr_type > 0x01)
 		return -EINVAL;
 
-	for (i = 0; i < RL_SIZE; i++) {
+	for (i = 0; i < dev->le_rl_len; i++) {
 		struct btdev_rl *rl = &dev->le_rl[i];
 
 		if (RL_ADDR_EQUAL(rl, cmd->addr_type, &cmd->addr)) {
@@ -3739,7 +3758,7 @@ static int cmd_remove_rl(struct btdev *dev, const void *data, uint8_t len)
 		}
 	}
 
-	if (i == RL_SIZE)
+	if (i == dev->le_rl_len)
 		return -EINVAL;
 
 	status = BT_HCI_ERR_SUCCESS;
@@ -3777,7 +3796,7 @@ static int cmd_read_rl_size(struct btdev *dev, const void *data, uint8_t len)
 	struct bt_hci_rsp_le_read_resolv_list_size rsp;
 
 	rsp.status = BT_HCI_ERR_SUCCESS;
-	rsp.size = RL_SIZE;
+	rsp.size = dev->le_rl_len;
 
 	cmd_complete(dev, BT_HCI_CMD_LE_READ_RESOLV_LIST_SIZE,
 							&rsp, sizeof(rsp));
@@ -6166,6 +6185,8 @@ struct btdev *btdev_create(enum btdev_type type, uint16_t id)
 	btdev->conns = queue_new();
 	btdev->le_ext_adv = queue_new();
 
+	btdev->le_wl_len = WL_SIZE;
+	btdev->le_rl_len = RL_SIZE;
 	return btdev;
 }
 
diff --git a/emulator/btdev.h b/emulator/btdev.h
index f7cba149a..b427a3a66 100644
--- a/emulator/btdev.h
+++ b/emulator/btdev.h
@@ -80,6 +80,10 @@ uint8_t btdev_get_le_scan_enable(struct btdev *btdev);
 
 void btdev_set_le_states(struct btdev *btdev, const uint8_t *le_states);
 
+void btdev_set_wl_len(struct btdev *btdev, uint8_t len);
+
+void btdev_set_rl_len(struct btdev *btdev, uint8_t len);
+
 void btdev_set_command_handler(struct btdev *btdev, btdev_command_func handler,
 							void *user_data);
 
diff --git a/emulator/hciemu.c b/emulator/hciemu.c
index a3ec44243..b8d85bb23 100644
--- a/emulator/hciemu.c
+++ b/emulator/hciemu.c
@@ -580,6 +580,22 @@ void hciemu_set_master_le_states(struct hciemu *hciemu, const uint8_t *le_states
 	btdev_set_le_states(hciemu->dev, le_states);
 }
 
+void hciemu_set_master_le_wl_len(struct hciemu *hciemu, uint8_t len)
+{
+	if (!hciemu || !hciemu->dev)
+		return;
+
+	btdev_set_wl_len(hciemu->dev, len);
+}
+
+void hciemu_set_master_le_rl_len(struct hciemu *hciemu, uint8_t len)
+{
+	if (!hciemu || !hciemu->dev)
+		return;
+
+	btdev_set_rl_len(hciemu->dev, len);
+}
+
 bool hciemu_add_master_post_command_hook(struct hciemu *hciemu,
 			hciemu_command_func_t function, void *user_data)
 {
diff --git a/emulator/hciemu.h b/emulator/hciemu.h
index 8bf2d070e..4a89b8d59 100644
--- a/emulator/hciemu.h
+++ b/emulator/hciemu.h
@@ -60,6 +60,10 @@ uint8_t hciemu_get_master_le_scan_enable(struct hciemu *hciemu);
 void hciemu_set_master_le_states(struct hciemu *hciemu,
 						const uint8_t *le_states);
 
+void hciemu_set_master_le_wl_len(struct hciemu *hciemu, uint8_t len);
+
+void hciemu_set_master_le_rl_len(struct hciemu *hciemu, uint8_t len);
+
 typedef void (*hciemu_command_func_t)(uint16_t opcode, const void *data,
 						uint8_t len, void *user_data);
 
