Re: [PATCH 00/15] ppc/ppc405: decade cleanup

[Cédric Le Goater]

> Don't know if this is the reason of our problems but I think there is
> something to investigate around timer interrupts:
>
>
> / # cat /proc/interrupts
>              CPU0
>    16:         68       UIC   1 Level     serial
> LOC:          0   Local timer interrupts for timer event device
> LOC:          0   Local timer interrupts for others
> SPU:          0   Spurious interrupts
> PMI:          0   Performance monitoring interrupts
> MCE:          0   Machine check exceptions
>
> Any idea what the problem can be ? How does QEMU generates timer
> interrupts ?

I did some archeology and fixed the 405 timer (PIT). Please see commits in :

  https://github.com/legoater/qemu/commits/ppc405

but we are still getting segfaults. At some point /init tries to load from
fffffe04 which is obviously wrong.

Add -d int,mmu to have more info from QEMU internals.

I have gathered some info on this page :

  https://github.com/legoater/qemu/wiki/ref405ep

Thanks,

C.