Re: Thoughts on removing the TARGET_I386 part of hw/display/vga/vbe_portio_list[]

[Richard Henderson]

On 12/6/22 10:02, Peter Maydell wrote:
> On Tue, 6 Dec 2022 at 15:56, Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
> > On 6/12/22 13:30, Dr. David Alan Gilbert wrote:
> > > I don't know that bit of qemu well enough to know whether the cpu part
> > > of qemu should be splitting the unaligned accesses or not.
> > All I/O accesses are gated thru access_with_adjusted_size() in
> > softmmu/memory.c.
> >
> > There is an old access_with_adjusted_size_unaligned() version [1] from
> > Andrew and a more recent series [2] from Richard. Maybe the latter fixes
> > some long-standing bug [3] we have here?
>
> There definitely are some unaddressed bugs there -- maybe this
> is the time to work through what semantics we want that
> softmmu code to provide and fix the bugs...

Yes, indeed.  Let's not forget Mark C-A's m68k bug[1] which so far has no 
resolution.


r~

[1] https://gitlab.com/qemu-project/qemu/-/issues/360