Re: [Qemu-ppc] [PATCH] spapr-pci: change endianness for io ports space

[Alexey Kardashevskiy]

On 07/13/2013 06:03 PM, David Gibson wrote:
> On Fri, Jul 12, 2013 at 05:37:19PM +1000, Alexey Kardashevskiy wrote:
>> sPAPR PHB emulates IO ports on PCI via a special memory region which
>> routes all reads/writes further via cpu_in*/cpu_out* which are eventually
>> processed by MemoryRegionOps implemented by devices.

> Hrm.  That double dispatch was a workaround for bugs in the plain
> memory region dispatching which meant we couldn't directly map regions
> in memory space to IO areas.
> 
> It would be worth checking if that workaround is still necessary.

Hm. Good point, thanks! It seems memory_region_init_io is not necessary any
more. Will make a patch for it.


-- 
Alexey