Re: PReP currently broken (Was Re: [Qemu-devel] Booting AIX / First try w/QEMU)

[Natalia Portillo]

This IS a bug.

Indeed, that's the first of all bugs/lack-of-feature trying to boot AIX:

PReP machine emulation is broken, with IRQ conflicts in the ISA bus.
OpenBIOS is not recognizing the PReP boot scheme (MBR partition, /ppc/ 
bootfile.txt)

Tested using G3 Beige machine:
Indicating boot /pci/pci-ata/ata-1/cdrom:1,\ppc\bootfile.txt does  
nothing
Indicating boot /pci/pci-ata/ata-1/cdrom:,\ppc\bootfile.txt loads the  
file, says ok, no booting.
Indicating boot /pci/pci-ata/ata-1/cdrom:,\ppc\chrp\bootfile.exe (the  
real kernel) loads the file (takes longer), says ok, no booting.
Indicating -kernel bootfile.exe, qemu ABORTS execution inmediately.

So these are the bugs preventing AIX from being emulated as for  
today's GIT.


El 16/10/2009, a las 00:43, IT2 Stuart Blake Tener, USNR escribió:

> Natalia,
>
>
> On 10/15/09 5:26 PM, "Natalia Portillo" <address@hidden> wrote:
>
> > As of today, qemu-system-ppc -M prep inmediately quits saying "isa  
> > irq
> > 13 already assigned"
>
> Are you saying you fixed or this is a bug or what? I am confused by  
> your
> email.
>
>
> V/R,
>
> Stuart
>
>
> > El 14/10/2009, a las 14:40, IT2 Stuart Blake Tener, USNR escribió:
> >
> > > Lauren,
> > >
> > > Please be cognizant of the fact that yesterday was the first time I
> > > downloaded, compiled, and ever tried QEMU, so I apologize for the
> > > "ID-10T" questions.
> > >
> > > BUG 1:
> > >
> > > When you say that booting AIX 6.1 impels the requisite of emulating
> > > a "CHRP with at least a POWER4"", are you saying QEMU cannot do
> > > this, or I need to assert different command line arguments?
> > >
> > > What requisites would booting AIX 5.3 impel?
> > >
> > > My goal would be to try to have access to both via an emulated
> > > environment, if possible.
> > >
> > > If the OpenBIOS will not work, what BIOS would work?
> > >
> > >
> > > BUG 2:
> > >
> > > How do I get the OpenBIOS updates and integrate them into
> > > recompiling QEMU, or can I just somehow get a compiled update of
> > > OpenBIOS and drop it in the correct QEMU directory?
> > >
> > > I am not too familiar with SVN or its command structure either.
> > >
> > >
> > > V/R,
> > >
> > > Stuart
> > >
> > >
> > > Quoting "Laurent Vivier" <address@hidden>:
> > >
> > > > > To whom it shall concern,
> > > > >
> > > > > I have absolutely no time for mailing lists or to spend much  
> > > > > time on
> > > > > this other than to report the bug, so please understand I am just
> > > > > here
> > > > > to report this, and have little time for continued testing of  
> > > > > it. I
> > > > > leave that to you, the developers.
> > > > >
> > > > > I ran into two different bugs attempting to try QEMU 0.11, under
> > > > > CentOS 5.3 64bit (fully updated), QEMU compiled from source
> > > > > flawlessly, while under under VirtualBox on a Lenvo T400 laptop.
> > > > >
> > > > > My goal was to try to boot an AIX CDROM from QEMU 0.11 (AIX  
> > > > > 6.1), I
> > > > > never got that far due to these bugs.
> > > > >
> > > > >
> > > > > Bug #1:
> > > > >
> > > > > It seems to complain about some 1MB BIOS file being missing or
> > > > > dysfunctional, really I did not see any BIOS files that big, so, I
> > > > > gave up with this type of boot. Then I tried below, "Bug #2", met
> > > > > with
> > > > > more problems, so I gave up entirely as I had no more time to play
> > > > > with it.
> > > > >
> > > > > /usr/local/bin/qemu-system-ppc -nographic -hda aix.raw -cdrom
> > > > > ./Image_091013_1359.iso -M prep
> > > > > qemu: hardware error: PowerPC 601 / 620 / 970 need a 1MB BIOS
> > > > >
> > > > > CPU #0:
> > > > > NIP fff00100   LR 00000000 CTR 00000000 XER 00000000
> > > > > MSR 00000040 HID0 00000000  HF 00000000 idx 1
> > > > > TB 00000000 00000000 DECR ffffffff
> > > > > GPR00 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR04 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR08 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR12 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR16 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR20 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR24 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > GPR28 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > CR 00000000  [ -  -  -  -  -  -  -  -  ]             RES ffffffff
> > > > > FPR00 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR04 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR08 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR12 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR16 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR20 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR24 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPR28 0000000000000000 0000000000000000 0000000000000000
> > > > > 0000000000000000
> > > > > FPSCR 00000000
> > > > > SRR0 00000000 SRR1 00000000 SDR1 00000000
> > > > > t: line 5: 11668 Aborted
> > > > > /usr/local/bin/qemu-system-ppc -nographic -hda aix.raw -cdrom
> > > > > ./Image_091013_1359.iso -M prep
> > > > > address@hidden qemu]#
> > > >
> > > > To boot AIX6.1, you must emulate a CHRP with at least a POWER4.
> > > > Moreover, AIX6.1 needs the hypervisor support in OpenFirmware
> > > > (which is not the case of OpenBIOS).
> > > >
> > > > > Bug #2: never even tries to boot from CD-ROM and gives some wildly
> > > > > odd
> > > > > error and display messages.
> > > > >
> > > > >
> > > > > /usr/local/bin/qemu-system-ppc -nographic -hda aix.raw -cdrom
> > > > > ./Image_091013_1359.iso -M g3beige
> > > > >
> > > > > > > =============================================================
> > > > > > > OpenBIOS 1.0 [Jul 5 2009 17:36]
> > > > > > > Configuration device id QEMU version 1 machine id 2
> > > > > > > CPUs: 1
> > > > > > > Memory: 128M
> > > > > > > UUID: 00000000-0000-0000-0000-000000000000
> > > > > > > CPU type PowerPC,750
> > > > > Welcome to OpenBIOS v1.0 built on Jul 5 2009 17:36
> > > > >
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > >
> > > > > 0 > boot cdrom
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > > >
> > > > > > > partition 2 does not exist
> > > >
> > > > This should be corrected in OpenBIOS HEAD SVN repository.
> > > >
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > > > *** Boot failure! No secondary bootloader specified ***
> > > > > ok
> > > >
> > > > Regards,
> > > > Laurent
> > > > --
> > > > --------------------- address@hidden  ---------------------
> > > > "Tout ce qui est impossible reste à accomplir"    Jules Verne
> > > > "Things are only impossible until they're not" Jean-Luc Picard
> > >
> > >
> > >
> > > --
> > > IT2 Stuart Blake Tener, USNR, N3GWG (Extra), MROP
> > > Beverly Hills, CA / Las Vegas, NV / Philadelphia, PA / Washington,  
> > > DC
> > > mobile: (310) 358-0202
> > > Nextel: 124*233172*14 (direct connect)
> > > e-mail: address@hidden
>
>
>
>
> --
>
> Very Respectfully,
>
> IT2 Stuart Blake Tener, USNR
> Las Vegas, NV / Beverly Hills, CA / Philadelphia, PA / Washington, DC
> Amateur Radio Call Sign: N3GWG (Extra) / Marine Radio Operator  
> Permit (MROP)
> email: address@hidden (also carbon copies to my Blackberry)
> phone: +(1) 310.358.0202 (Beverly Hills, CA, forwards to mobile phone)
> phone: +(1) 215.338.6005 (Philadelphia, PA, voice mail only)
> E-Fax: +(1) 928.437.4505 (Telecopier, fax to email gateway)
>
> Military emails (checked monthly until remote NMCI access is secured)
> NIPRNET: address@hidden
> NIPRNET: address@hidden
> NRO:     address@hidden
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>
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