Re: [OpenBIOS] PReP PowerPC "emulation"

[Andreas Färber]

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.

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?

Regards,

Andreas

PReP PowerPC "emulation"

[Alexander Graf]

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

PReP PowerPC "emulation"

[Massimo Montecchi]

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

2010/9/14 Alexander Graf
> 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

PReP PowerPC "emulation"

[Andreas Färber]

Am 14.09.2010 um 02:01 schrieb Massimo Montecchi:
> AIX, I think, works only on PReP machine ...

Possibly. It still shouldn't hang under OpenBIOS though if it doesn't  
hang on comparable real hardware.

Andreas

PReP PowerPC "emulation"

[Laurent Vivier]

Le mardi 14 septembre 2010 à 00:24 +0200, Andreas Färber a écrit :
> 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.
>
> 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...

With the old openbios I have  (r790) and qemu (b6601141), and AIX 5.3, I
have this:

$ ./ppc-softmmu/qemu-system-ppc -bios ../openbios-devel/obj-ppc/openbios-qemu.elf -cdrom ../ISO/AIX5.3.iso -nographic
> > =============================================================
> > OpenBIOS 1.0 [Jun 3 2010 20:43]
> > 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 Jun 3 2010 20:43

No valid state has been set by load or init-program
No valid state has been set by load or init-program
> > *** Boot failure! No secondary bootloader specified ***

0 > boot cd:
> > partition 2 does not exist

No valid state has been set by load or init-program
No valid state has been set by load or init-program

-------------------------------------------------------------------------------
                                Welcome to AIX.
                       boot image timestamp: 00:00 00/00
                 The current time and date: 22:38:17 09/13/2010
               number of processors: 1    size of memory: 128MB
                    boot device: cd:\ppc\chrp\bootfile.exe
Validation failed: the "/rtas" device node does not exist.
EXIT
0 >

$ ./ppc64-softmmu/qemu-system-ppc64 -bios ../openbios-devel/obj-ppc/openbios-qemu.elf -cdrom ../ISO/AIX53.iso -nographic
C>> annot manage 'OHCI USB controller' PCI device type 'usb':
> > 106b 3f (c 3 10)
> > =============================================================
> > OpenBIOS 1.0 [Jun 3 2010 20:43]
> > 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 Jun 3 2010 20:43

No valid state has been set by load or init-program
No valid state has been set by load or init-program
> > *** Boot failure! No secondary bootloader specified ***

0 > boot cd:
> > partition 2 does not exist

No valid state has been set by load or init-program
No valid state has been set by load or init-program

-------------------------------------------------------------------------------
                                Welcome to AIX.
                       boot image timestamp: 00:00 00/00
NULL ihandle                 The current time and date: 00:00:00 86708/00/0008
               number of processors: 1    size of memory: 128MB
                    boot device: cd:\ppc\chrp\bootfile.exe
Validation failed: the "/rtas" device node does not exist.
EXIT
> @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?

Regards,
Laurent