diff --git a/lib/librte_vhost/Makefile b/lib/librte_vhost/Makefile
index 5d6c6abae..37044ac03 100644
--- a/lib/librte_vhost/Makefile
+++ b/lib/librte_vhost/Makefile
@@ -22,9 +22,9 @@ LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_ethdev -lrte_net
 
 # all source are stored in SRCS-y
 SRCS-$(CONFIG_RTE_LIBRTE_VHOST) := fd_man.c iotlb.c socket.c vhost.c \
-					vhost_user.c virtio_net.c
+					vhost_user.c virtio_net.c vdpa.c
 
 # install includes
-SYMLINK-$(CONFIG_RTE_LIBRTE_VHOST)-include += rte_vhost.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_VHOST)-include += rte_vhost.h rte_vdpa.h
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h
new file mode 100644
index 000000000..a4bbbd93d
--- /dev/null
+++ b/lib/librte_vhost/rte_vdpa.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _RTE_VDPA_H_
+#define _RTE_VDPA_H_
+
+/**
+ * @file
+ *
+ * Device specific vhost lib
+ */
+
+#include <rte_pci.h>
+#include "rte_vhost.h"
+
+#define MAX_VDPA_NAME_LEN 128
+
+enum vdpa_addr_type {
+	PCI_ADDR,
+	VDPA_ADDR_MAX
+};
+
+struct rte_vdpa_dev_addr {
+	enum vdpa_addr_type type;
+	union {
+		uint8_t __dummy[64];
+		struct rte_pci_addr pci_addr;
+	};
+};
+
+/* Get capabilities of this device */
+typedef int (*vdpa_dev_queue_num_get_t)(int did, uint32_t *queue_num);
+typedef int (*vdpa_dev_feature_get_t)(int did, uint64_t *features);
+
+/* Driver configure/close the device */
+typedef int (*vdpa_dev_conf_t)(int vid);
+typedef int (*vdpa_dev_close_t)(int vid);
+
+/* Enable/disable this vring */
+typedef int (*vdpa_vring_state_set_t)(int vid, int vring, int state);
+
+/* Set features when changed */
+typedef int (*vdpa_feature_set_t)(int vid);
+
+/* Destination operations when migration done */
+typedef int (*vdpa_migration_done_t)(int vid);
+
+/* Get the vfio group fd */
+typedef int (*vdpa_get_vfio_group_fd_t)(int vid);
+
+/* Get the vfio device fd */
+typedef int (*vdpa_get_vfio_device_fd_t)(int vid);
+
+/* Get the notify area info of the queue */
+typedef int (*vdpa_get_notify_area_t)(int vid, int qid, uint64_t *offset,
+		uint64_t *size);
+/* Device ops */
+struct rte_vdpa_dev_ops {
+	vdpa_dev_queue_num_get_t  queue_num_get;
+	vdpa_dev_feature_get_t    feature_get;
+	vdpa_dev_feature_get_t    protocol_feature_get;
+	vdpa_dev_conf_t           dev_conf;
+	vdpa_dev_close_t          dev_close;
+	vdpa_vring_state_set_t    vring_state_set;
+	vdpa_feature_set_t        feature_set;
+	vdpa_migration_done_t     migration_done;
+	vdpa_get_vfio_group_fd_t  get_vfio_group_fd;
+	vdpa_get_vfio_device_fd_t get_vfio_device_fd;
+	vdpa_get_notify_area_t    get_notify_area;
+};
+
+struct rte_vdpa_device {
+	struct rte_vdpa_dev_addr addr;
+	struct rte_vdpa_dev_ops *ops;
+} __rte_cache_aligned;
+
+extern struct rte_vdpa_device *vdpa_devices[];
+extern uint32_t vdpa_device_num;
+
+/* Register a vdpa device, return did if successful, -1 on failure */
+int __rte_experimental
+rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
+		struct rte_vdpa_dev_ops *ops);
+
+/* Unregister a vdpa device, return -1 on failure */
+int __rte_experimental
+rte_vdpa_unregister_device(int did);
+
+/* Find did of a vdpa device, return -1 on failure */
+int __rte_experimental
+rte_vdpa_find_device_id(struct rte_vdpa_dev_addr *addr);
+
+#endif /* _RTE_VDPA_H_ */
diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map
index df0103129..7bcffb490 100644
--- a/lib/librte_vhost/rte_vhost_version.map
+++ b/lib/librte_vhost/rte_vhost_version.map
@@ -59,3 +59,9 @@ DPDK_18.02 {
 	rte_vhost_vring_call;
 
 } DPDK_17.08;
+
+EXPERIMENTAL {
+	rte_vdpa_register_device;
+	rte_vdpa_unregister_device;
+	rte_vdpa_find_device_id;
+} DPDK_18.02;
diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
new file mode 100644
index 000000000..0c950d45f
--- /dev/null
+++ b/lib/librte_vhost/vdpa.c
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+/**
+ * @file
+ *
+ * Device specific vhost lib
+ */
+
+#include <stdbool.h>
+
+#include <rte_malloc.h>
+#include "rte_vdpa.h"
+#include "vhost.h"
+
+struct rte_vdpa_device *vdpa_devices[MAX_VHOST_DEVICE];
+uint32_t vdpa_device_num;
+
+static int is_same_vdpa_dev_addr(struct rte_vdpa_dev_addr *a,
+		struct rte_vdpa_dev_addr *b)
+{
+	int ret = 0;
+
+	if (a->type != b->type)
+		return -1;
+
+	switch (a->type) {
+	case PCI_ADDR:
+		if (a->pci_addr.domain != b->pci_addr.domain ||
+				a->pci_addr.bus != b->pci_addr.bus ||
+				a->pci_addr.devid != b->pci_addr.devid ||
+				a->pci_addr.function != b->pci_addr.function)
+			ret = -1;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+int rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
+		struct rte_vdpa_dev_ops *ops)
+{
+	struct rte_vdpa_device *dev;
+	char device_name[MAX_VDPA_NAME_LEN];
+	int i;
+
+	if (vdpa_device_num >= MAX_VHOST_DEVICE)
+		return -1;
+
+	for (i = 0; i < MAX_VHOST_DEVICE; i++) {
+		if (vdpa_devices[i] == NULL)
+			break;
+	}
+
+	sprintf(device_name, "vdpa-dev-%d", i);
+	dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
+			RTE_CACHE_LINE_SIZE);
+	if (!dev)
+		return -1;
+
+	memcpy(&dev->addr, addr, sizeof(struct rte_vdpa_dev_addr));
+	dev->ops = ops;
+	vdpa_devices[i] = dev;
+	vdpa_device_num++;
+
+	return i;
+}
+
+int rte_vdpa_unregister_device(int did)
+{
+	if (did < 0 || did >= MAX_VHOST_DEVICE || vdpa_devices[did] == NULL)
+		return -1;
+
+	rte_free(vdpa_devices[did]);
+	vdpa_devices[did] = NULL;
+	vdpa_device_num--;
+
+	return did;
+}
+
+int rte_vdpa_find_device_id(struct rte_vdpa_dev_addr *addr)
+{
+	struct rte_vdpa_device *dev;
+	int i;
+
+	for (i = 0; i < MAX_VHOST_DEVICE; ++i) {
+		dev = vdpa_devices[i];
+		if (dev && is_same_vdpa_dev_addr(&dev->addr, addr) == 0)
+			return i;
+	}
+
+	return -1;
+}
