[OpenBIOS] [Qemu-ppc] Running client with MMU off

[BALATON Zoltan]

On Thu, 26 Jun 2014, Alexander Graf wrote:
>>> I don't think any other OS really accesses these ranges, but only time 
>>> will tell ;).
>> 
>> Don't know, according to previous replies they may. Then how about always 
>> clearing the translation for page zero the next time our handler is called 
>> so I always get a new exception when it's accessed? (I have to add it for 
>> the access to succeed but I may remove it at the next possible occasion.) 
>> In the lack of a better idea I'll try this.
>
> That sounds odd. Why don't you just implement a tiny instruction emulator? We 
> only need to catch stores here, no?

I assume yes but I'm not sure and I don't know how to do that. Do you know 
about an example somewhere?

Regards,
BALATON Zoltan