diff options
Diffstat (limited to 'hw/virtio-net.c')
| -rw-r--r-- | hw/virtio-net.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/virtio-net.c b/hw/virtio-net.c index ad55bb7610..ae9b7d92c7 100644 --- a/hw/virtio-net.c +++ b/hw/virtio-net.c @@ -113,6 +113,21 @@ static uint32_t virtio_net_get_features(VirtIODevice *vdev) return features; } +static uint32_t virtio_net_bad_features(VirtIODevice *vdev) +{ + uint32_t features = 0; + + /* Linux kernel 2.6.25. It understood MAC (as everyone must), + * but also these: */ + features |= (1 << VIRTIO_NET_F_MAC); + features |= (1 << VIRTIO_NET_F_GUEST_CSUM); + features |= (1 << VIRTIO_NET_F_GUEST_TSO4); + features |= (1 << VIRTIO_NET_F_GUEST_TSO6); + features |= (1 << VIRTIO_NET_F_GUEST_ECN); + + return features & virtio_net_get_features(vdev); +} + static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features) { VirtIONet *n = to_virtio_net(vdev); @@ -580,6 +595,7 @@ PCIDevice *virtio_net_init(PCIBus *bus, NICInfo *nd, int devfn) n->vdev.set_config = virtio_net_set_config; n->vdev.get_features = virtio_net_get_features; n->vdev.set_features = virtio_net_set_features; + n->vdev.bad_features = virtio_net_bad_features; n->vdev.reset = virtio_net_reset; n->rx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_rx); n->tx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_tx); |