vhost: introduce guest IOVA to backend VA helper

[dpdk.git] / lib / librte_vhost / vhost.h

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 7600885..2ea6c46 100644 (file)
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -375,4 +375,17 @@ struct vhost_device_ops const *vhost_driver_callback_get(const char *path);
  */
 void vhost_backend_cleanup(struct virtio_net *dev);
 
+uint64_t __vhost_iova_to_vva(struct virtio_net *dev, struct vhost_virtqueue *vq,
+                       uint64_t iova, uint64_t size, uint8_t perm);
+
+static __rte_always_inline uint64_t
+vhost_iova_to_vva(struct virtio_net *dev, struct vhost_virtqueue *vq,
+                       uint64_t iova, uint64_t size, uint8_t perm)
+{
+       if (!(dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM)))
+               return rte_vhost_gpa_to_vva(dev->mem, iova);
+
+       return __vhost_iova_to_vva(dev, vq, iova, size, perm);
+}
+
 #endif /* _VHOST_NET_CDEV_H_ */