Re: [Qemu-devel] [PATCH v2 0/8] memory: remove old_portio usage

[Hervé Poussineau]

Jan Kiszka a écrit :
> On 2013-06-17 09:32, Paolo Bonzini wrote:
> > Il 16/06/2013 20:20, Hervé Poussineau ha scritto:
> > > Hervé Poussineau a écrit :
> > > > These proposed patches aim at removing the .old_portio member of
> > > > MemoryRegionOps structure, and replacing their usage by .read/.write
> > > > handlers.
> > > Ping.
> > Jan has patches that do something similar, so I was hoping he'd look at it.
> >
> > Jan, are you back from vacation? :)
>
> Yes, and that is the problem. ;)
>
> > From a quick glance, I'm a bit skeptical, Hervé, that your patches are
> addressing all corner cases like mine. Did you see
> http://thread.gmane.org/gmane.comp.emulators.qemu/210188?
>
> Jan

My patches are less intrusive than yours, because they are probably less 
complex. They don't change subpage handling, they don't remove the 
register_ioport_*, and they don't move ioport handling to memory core.

However, my patches do not add a new base address field in MemoryRegion, 
and also simplify cpu_in/out to be simply a call to 
address_space_read/write (like yours).

I don't really care whatever way is chosen. I'm only interested to be 
able to put I/O address space into memory space, so I can improve PReP 
emulation.

Hervé