Re: [PATCH 0/4] target/ppc: Catch invalid real address accesses

[Mark Cave-Ayland]

On 27/06/2023 13:03, Cédric Le Goater wrote:

> > > Mac OS 9.2 fails to boot with a popup saying :
> > >          Sorry, a system error occured.
> > >          "Sound Manager"
> > >            address error
> > >          To temporarily turn off extensions, restart and
> > >          hold down the shift key
> > >
> > >
> > > Darwin and Mac OSX look OK.
> >
> > My guess would be that MacOS 9.2 is trying to access the sound chip registers which 
> > isn't implemented in QEMU for the moment (I have a separate screamer branch 
> > available, but it's not ready for primetime yet). In theory they shouldn't be 
> > accessed at all because the sound device isn't present in the OpenBIOS device tree, 
> > but this is all fairly old stuff.
> >
> > Does implementing the sound registers using a dummy device help at all?
>
> Nope. OS 9 loops earlier (little black/white disk spinning).
>
> Thanks,
>
> C.

Hmmm that's annoying. Another one to add to the TODO list then...


ATB,

Mark.