tree d0de32edc07951138978e8425d09084d3930838d
parent 6bf38816df80a3b50529119c5458b151b3e2c728
author Markus Armbruster <armbru@redhat.com> 1267195851 +0100
committer Anthony Liguori <aliguori@us.ibm.com> 1268146040 -0600

qdev: Catch attempt to attach more than one device to a netdev

Guest device and host netdev are peers, i.e. it's a 1:1 relation.
However, we fail to enforce that:

    $ qemu -nodefaults --nographic -netdev user,id=net0 -device e1000,netdev=net0 -device virtio-net-pci,netdev=net0 -monitor stdio
    QEMU 0.12.50 monitor - type 'help' for more information
    (qemu) info network
    Devices not on any VLAN:
      net0: net=10.0.2.0, restricted=n peer=virtio-net-pci.0
      e1000.0: model=e1000,macaddr=52:54:00:12:34:56 peer=net0
      virtio-net-pci.0: model=virtio-net-pci,macaddr=52:54:00:12:34:57 peer=net0

It's all downhill from there.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>