qdev: Regarding lazy ISA bridge creation

[Philippe Mathieu-Daudé]

Hi Cédric,

I'm trying to understand the comment you added in commit
3495b6b6101 ("ppc/pnv: add a ISA bus"):

 /* let isa_bus_new() create its own bridge on SysBus otherwise
  * devices specified on the command line won't find the bus and
  * will fail to create.
  */
 isa_bus = isa_bus_new(NULL, &lpc->isa_mem, &lpc->isa_io, &local_err);

Do you have an example so I can reproduce?

Thanks,

Phil.