Re: [Qemu-devel] [PATCH 1/4] qdev/isa: add isa bus support to qdev.

[Gerd Hoffmann <kraxel@redhat.com>]

On 07/17/09 20:12, Filip Navara wrote:
> 2009/7/15 Gerd Hoffmann<kraxel@redhat.com>:
>> +static struct BusInfo isa_bus_info = {
>> +    .name  = "ISA",
>> +    .size  = sizeof(ISABus),
>> +    .props = (Property[]) {
>> +        {
>> +            .name   = "iobase",
>> +            .name   = "iobase2",
>
> Why exactly two IO bases? That sounds like bad design to me. IMHO it
> should be handled more like sysbus_init_mmio (or sysbus_init_mmio_cb)
> and sysbus_mmio_map and the number of IO bases should be virtually
> unlimited (something like QDEV_MAX_MMIO is acceptable).

Do we really need that?  As new isa devices most likely wouldn't show up 
looking at the existing ones should give us a pretty complete picture ;)

Most devices use one iobase.  A few (ide, ps/2) need two.  Any devices 
which need more?

cheers,
   Gerd