Re: [Qemu-devel] [RFC 4/8] qdev: link based hotplug

[Igor Mammedov <imammedo@redhat.com>]

On Thu, 20 Mar 2014 17:12:17 +0100
Paolo Bonzini <pbonzini@redhat.com> wrote:

> Il 20/03/2014 16:01, Igor Mammedov ha scritto:
> > +    /*
> > +     * Returns path to link<> that should be set/unset on dev hotplug.
> > +     * Used for link based bussless devices hotplug.
> > +     */
> > +    char* (*hotplug_path)(DeviceState *dev);
> > +
> 
> What about just looking up on the QOM tree until you find a 
> HotplugHandler, if the device doesn't have a bus or the bus doesn't have 
> a hotplug handler link itself?  This is similar to how FWPathProvider works.

it does so "hotplug_handler_get_from_path()",
above just provides option to specify lookup path. See 6/8 where PC board
allocates links and sets its own board specific path for generic DimmDevice.

> 
> Paolo