diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 6bf5626d0f..fd58ad6b4d 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -544,6 +544,30 @@ dump_guest_pages(struct virtio_net *dev)
 #define dump_guest_pages(dev)
 #endif
 
+static bool
+vhost_memory_changed(struct VhostUserMemory *new,
+		     struct rte_vhost_memory *old)
+{
+	uint32_t i;
+
+	if (new->nregions != old->nregions)
+		return true;
+
+	for (i = 0; i < new->nregions; ++i) {
+		VhostUserMemoryRegion *new_r = &new->regions[i];
+		struct rte_vhost_mem_region *old_r = &old->regions[i];
+
+		if (new_r->guest_phys_addr != old_r->guest_phys_addr)
+			return true;
+		if (new_r->memory_size != old_r->size)
+			return true;
+		if (new_r->userspace_addr != old_r->guest_user_addr)
+			return true;
+	}
+
+	return false;
+}
+
 static int
 vhost_user_set_mem_table(struct virtio_net *dev, struct VhostUserMsg *pmsg)
 {
@@ -556,6 +580,16 @@ vhost_user_set_mem_table(struct virtio_net *dev, struct VhostUserMsg *pmsg)
 	uint32_t i;
 	int fd;
 
+	if (dev->mem && !vhost_memory_changed(&memory, dev->mem)) {
+		RTE_LOG(INFO, VHOST_CONFIG,
+			"(%d) memory regions not changed\n", dev->vid);
+
+		for (i = 0; i < memory.nregions; i++)
+			close(pmsg->fds[i]);
+
+		return 0;
+	}
+
 	if (dev->mem) {
 		free_mem_region(dev);
 		rte_free(dev->mem);