Re: [Qemu-devel] [PATCH v3 0/5] Remove sysbus_add_memory and sysbus_del_memory

[Peter Maydell]

On 15 March 2013 16:00, Paolo Bonzini <address@hidden> wrote:
> Il 15/03/2013 15:34, Peter Maydell ha scritto:
>> I rather suspect sysbus_add_io and sysbus_del_io should also be
>> removed, but since their users are in PPC and x86 platforms I'll
>> let somebody else do that part :-)
>
> sysbus_add_io and sysbus_del_io are actually a good match for the I/O
> address space of x86, because the model was to have "well-known" port
> numbers standardized across all platforms.  So all the boards would have
> to know those port addresses if we used sysbus_init_mmio.

Maybe they should just call memory_region_add_subregion()
directly then? There's nothing sysbus-device-specific about
what these functions do, they just take a SysBusDevice* and
totally ignore it...

-- PMM