diff --git a/hw/pci/virtio/virtio.c b/hw/pci/virtio/virtio.c
index a022cb63a..21506f595 100644
--- a/hw/pci/virtio/virtio.c
+++ b/hw/pci/virtio/virtio.c
@@ -227,7 +227,40 @@ virtio_vq_init(struct virtio_base *base, uint32_t pfn)
 static void
 virtio_vq_enable(struct virtio_base *base)
 {
-	/* TODO: to be implemented */
+	struct virtio_vq_info *vq;
+	uint16_t qsz;
+	uint64_t phys;
+	size_t size;
+	char *vb;
+
+	vq = &base->queues[base->curq];
+	qsz = vq->qsize;
+
+	/* descriptors */
+	phys = (((uint64_t)vq->gpa_desc[1]) << 32) | vq->gpa_desc[0];
+	size = qsz * sizeof(struct virtio_desc);
+	vb = paddr_guest2host(base->dev->vmctx, phys, size);
+	vq->desc = (struct virtio_desc *)vb;
+
+	/* available ring */
+	phys = (((uint64_t)vq->gpa_avail[1]) << 32) | vq->gpa_avail[0];
+	size = (2 + qsz + 1) * sizeof(uint16_t);
+	vb = paddr_guest2host(base->dev->vmctx, phys, size);
+	vq->avail = (struct vring_avail *)vb;
+
+	/* used ring */
+	phys = (((uint64_t)vq->gpa_used[1]) << 32) | vq->gpa_used[0];
+	size = sizeof(uint16_t) * 3 + sizeof(struct virtio_used) * qsz;
+	vb = paddr_guest2host(base->dev->vmctx, phys, size);
+	vq->used = (struct vring_used *)vb;
+
+	/* Mark queue as allocated, and start at 0 when we use it. */
+	vq->flags = VQ_ALLOC;
+	vq->last_avail = 0;
+	vq->save_used = 0;
+
+	/* Mark queue as enabled. */
+	vq->enabled = true;
 }
 
 /*
diff --git a/include/virtio.h b/include/virtio.h
index ea455ceb3..c1574ec88 100644
--- a/include/virtio.h
+++ b/include/virtio.h
@@ -318,7 +318,8 @@ struct vring_used {
 
 /* From section 2.3, "Virtqueue Configuration", of the virtio specification */
 /**
- * @brief Calculate size of a virtual ring.
+ * @brief Calculate size of a virtual ring, this interface is only valid for
+ * legacy virtio.
  *
  * @param qsz Size of raw data in a certain virtqueue.
  *