On Tue, Oct 08, 2013 at 02:16:06PM +0200, Cornelia Huck wrote:
> On Tue, 8 Oct 2013 15:12:39 +0300
> "Michael S. Tsirkin" <> wrote:
>
> > This reminds me - our use of the SenseID format for device
> > identification is not in the spec, is it?
> > We should probably add it - want to do this?
>
> I don't think there's a need to do so, as it is a standard channel
> command. Every control unit/device since 1973 supports it :)
The format of the command is standard, yes.
But I really meant which virtio field goes into which field
and how does a driver match.
Linux guest does: CCW_DEVICE(0x3832, 0)
so it ignores device type and model, and
matches controller model against virtio device ID.
This really should be documented in spec - it's not good
that people need to look at guest code to write hypervisors.
--
MST
