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Revision 055b889f

ID055b889f942b063bd1901a316b34017f2b699b12

Added by Amit Shah over 11 years ago

virtio-serial: Use control messages to notify guest of new ports

Allow the port 'id's to be set by a user on the command line. This is
needed by management apps that will want a stable port numbering scheme
for hot-plug/unplug and migration.

Since the port numbers are shared with the guest (to identify ports in
control messages), we just send a control message to the guest
indicating addition of new ports (hot-plug) or notifying the guest of
the available ports when the guest sends us a DEVICE_READY control
message.

Signed-off-by: Amit Shah <>
Signed-off-by: Anthony Liguori <>

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