commit d293dac8f30e46f0cb66fbcce2977d73d56fe103
Author: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Date:   Fri Jan 29 12:58:00 2016 +0800

    vhost: claim support of guest announce

    It's actually a feature already enabled in Linux kernel (since v3.5).
    What we need to do is simply to claim that we support such feature,
    and nothing else.

    With that, the guest will send an ARP message after live migration
    to notify the switches about the new location of migrated VM.

    Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
    Tested-by: Pavel Fedin <p.fedin@samsung.com>

Index: dpdk-2.2.0/lib/librte_vhost/virtio-net.c
===================================================================
--- dpdk-2.2.0.orig/lib/librte_vhost/virtio-net.c
+++ dpdk-2.2.0/lib/librte_vhost/virtio-net.c
@@ -74,6 +74,7 @@ static struct virtio_net_config_ll *ll_r
 #define VHOST_SUPPORTED_FEATURES ((1ULL << VIRTIO_NET_F_MRG_RXBUF) | \
 				(1ULL << VIRTIO_NET_F_CTRL_VQ) | \
 				(1ULL << VIRTIO_NET_F_CTRL_RX) | \
+				(1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE) | \
 				(VHOST_SUPPORTS_MQ)            | \
 				(1ULL << VIRTIO_F_VERSION_1)   | \
 				(1ULL << VHOST_F_LOG_ALL)      | \