vhost: enable IOMMU support

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Yuanhan Liu <yliu@fridaylinux.org>

diff --git a/doc/guides/rel_notes/release_17_11.rst b/doc/guides/rel_notes/release_17_11.rst
index 6a75ae0..ae2c1ec 100644 (file)
--- a/doc/guides/rel_notes/release_17_11.rst
+++ b/doc/guides/rel_notes/release_17_11.rst
@@ -64,6 +64,11 @@ New Features
    * Support for Flow API
    * Support for Tx and Rx descriptor status functions
 
+* **Added IOMMU support to libvhost-user**
+
+  Implemented device IOTLB in Vhost-user backend, and enabled Virtio's IOMMU
+  feature.
+
 * **Added Membership library (rte_member).**
 
   Added membership library. It provides an API for DPDK applications to insert a

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index b633aba..01b17ca 100644 (file)
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -211,7 +211,8 @@ struct vhost_msg {
                                (1ULL << VIRTIO_NET_F_GUEST_TSO4) | \
                                (1ULL << VIRTIO_NET_F_GUEST_TSO6) | \
                                (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \
-                               (1ULL << VIRTIO_NET_F_MTU))
+                               (1ULL << VIRTIO_NET_F_MTU) | \
+                               (1ULL << VIRTIO_F_IOMMU_PLATFORM))
 
 
 struct guest_page {