On Mon, Jan 18, 2016 at 04:50:16PM +0000, Xie, Huawei wrote: > On 1/15/2016 12:34 PM, Yuanhan Liu wrote: > > -static void > > +static int > > virtio_negotiate_features(struct virtio_hw *hw) > > { > > uint64_t host_features; > > @@ -949,6 +949,22 @@ virtio_negotiate_features(struct virtio_hw *hw) > > hw->guest_features = vtpci_negotiate_features(hw, host_features); > > Here if we are not modern device, we should remove VIRTIO_F_VERSION_1 in > guest features.
VIRTIO_F_VERSION_1 should not be set for legacy virtio device at all. --yliu