[OpenBIOS] PReP PowerPC "emulation"

[Massimo Montecchi]

AIX, I think, works only on PReP machine ...

2010/9/14 Alexander Graf <agraf at suse.de>

>
> On 14.09.2010, at 00:24, Andreas Färber wrote:
>
> > Hi,
> >
> > Am 13.09.2010 um 10:31 schrieb Laurent Vivier:
> >
> >>> I have tried qemu from 0.11 to latest git (as of 11/09/2010) with
> latest openbios inside, but if i want to use PREP PPC "machine" the error is
> the same:
> >
> >> the last time I tried to boot AIX (6 or 7 monthes ago...), OpenBIOS was
> able to load the bootloader but as RTAS is not provided by OpenBIOS,
> bootloader failed and didn't go further. I think it was with the CHRP
> emulation.
> >
> > I just tried `qemu-system-ppc64 -boot d -cdrom dvd.AIX6_OpenBeta....iso`
> and it hangs after:
> >
> > Welcome to OpenBIOS v1.0 built on Sep 9 2010 19:56
> > Trying cd:,\\:tbxi...
> >
> > On a real PowerMac G5 neither the above nor the ppc\bootinfo.txt command
> `boot &device;:\ppc\chrp\bootfile.exe` worked, any variations of it with ,
> and/or :0 etc. lead to errors about no FDisk partition found or
> noninterposed LOAD not supported, iirc.
>
> I'm not sure AIX works on Macs. In fact, I'd even strongly believe that
> we're missing a _lot_ to make it actually work in qemu. There's probably
> subtleties in the cpu emulation code missing/wrong on top of RTAS not being
> there on top of us failing to even load a kernel. Patches are welcome, but I
> certainly won't look into AIX anytime soon.
>
> >
> > This is what -nographic shows me:
> >
> > >> Cannot manage 'OHCI USB controller' PCI device type 'usb':
> > >>  106b 3f (c 3 10)
> >
> > >> =============================================================
> > >> OpenBIOS 1.0 [Sep 9 2010 19:56]
> > >> Configuration device id QEMU version 1 machine id 3
> > >> CPUs: 1
> > >> Memory: 128M
> > >> UUID: 00000000-0000-0000-0000-000000000000
> > >> CPU type PowerPC,970FX
> > Welcome to OpenBIOS v1.0 built on Sep 9 2010 19:56
> > Trying cd:,\\:tbxi...
> >
> > @Alex, any hunch what the OHCI thing is about? It doesn't appear with
> qemu-system-ppc. Some USB initialization missing in the QEMU U3 machine init
> maybe?
>
> *shrug* looks like OpenBIOS doesn't know how to deal with that usb
> controller. It's definitely not related :).
>
> Alex
>
>
> --
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> Free your System - May the Forth be with you
>



-- 
Cordiali Saluti/Best Regards

Massimo Montecchi
Modena - Italy
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