[PATCH RFC v6 15/20] virtio-net: no writeable mac for virtio-1

Cornelia Huck
2014-12-11T13:25:17Z

Devices operating as virtio 1.0 may not allow writes to the mac
address in config space.

Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com>
---
 hw/net/virtio-net.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index d6d1b98..ebbea60 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -87,6 +87,7 @@ static void virtio_net_set_config(VirtIODevice *vdev, const
uint8_t *config)
     memcpy(&netcfg, config, n->config_size);

     if (!virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_MAC_ADDR) &&
+        !virtio_has_feature(vdev, VIRTIO_F_VERSION_1) &&
         memcmp(netcfg.mac, n->mac, ETH_ALEN)) {
         memcpy(n->mac, netcfg.mac, ETH_ALEN);
         qemu_format_nic_info_str(qemu_get_queue(n->nic), n->mac);
--
1.7.9.5