device: 0.865
assembly: 0.863
boot: 0.863
user-level: 0.858
permissions: 0.858
kernel: 0.854
debug: 0.853
socket: 0.848
performance: 0.847
register: 0.845
mistranslation: 0.844
semantic: 0.843
PID: 0.838
architecture: 0.829
graphic: 0.824
virtual: 0.822
risc-v: 0.821
files: 0.816
arm: 0.815
network: 0.802
hypervisor: 0.773
ppc: 0.768
vnc: 0.767
peripherals: 0.759
KVM: 0.740
TCG: 0.721
VMM: 0.671
i386: 0.626
x86: 0.619

PPC emulation loops on booting a FreeBSD kernel

Has anyone tried booting FreeBSD8.1-ppc under QEMU (Linux x86_64 host; PPC guest)?  I can get Linux/PPC to run fine, and FreeBSD8.1-i386 as well; but there seems to be a problem with whatever the FreeBSD8.1 kernel does, that QEMU's PPC emulation can't handle.

I am using the latest version of QEMU from GIT as of 25/8/10.  I don't know how to get a "git commit hash", so I can't quote it.

The kernel starts OK then loops after "Kernel entry at 0x100100 ...".

The command I am running is

qemu-system-ppc -cdrom FreeBSD-8.1-RELEASE-powerpc-disc1.iso -hda freebsd8.1-ppc -m 94 -boot d"

I obtained the kernel from ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/ISO-IMAGES/8.1/FreeBSD-8.1-RELEASE-powerpc-disc1.iso.

I did a "git log" command, and the first line is "2446333cd5b5c985f6517dee7004e542ecacd21c".  Is that what you mean by a git hash?  If so, I hope it helps.

It looks like a firmware issue. Please report this to <email address hidden>. You get the output below by using the -nographic option.


>> =============================================================
>> OpenBIOS 1.0 [Aug 17 2010 14:41]
>> Configuration device id QEMU version 1 machine id 2
>> CPUs: 1
>> Memory: 512M
>> UUID: 00000000-0000-0000-0000-000000000000
>> CPU type PowerPC,750
Welcome to OpenBIOS v1.0 built on Aug 17 2010 14:41
Trying cd:,\\:tbxi...
Consoles: Open Firmware console  

FreeBSD/powerpc Open Firmware loader, Revision 0.1
(<email address hidden>, Sun Jul 18 04:50:11 UTC 2010)
Memory: 524288KB
Booted from: cd

Loading /boot/defaults/loader.conf 
/boot/kernel/kernel data=0x72c6b8+0x3e280 syms=[0x4+0x5ac10+0x4+0x7d8ad]
/
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
Kernel entry at 0x100100 ...
panic: OFW translations above 32-bit boundary!
Uptime: 1s


I have been asked to forward this to you - could you help, please?

Thanks!

-Nigel


-------- Original Message --------

It looks like a firmware issue. Please report this to
<email address hidden>. You get the output below by using the -nographic
option.


>>  =============================================================
>>  OpenBIOS 1.0 [Aug 17 2010 14:41]
>>  Configuration device id QEMU version 1 machine id 2
>>  CPUs: 1
>>  Memory: 512M
>>  UUID: 00000000-0000-0000-0000-000000000000
>>  CPU type PowerPC,750
Welcome to OpenBIOS v1.0 built on Aug 17 2010 14:41
Trying cd:,\\:tbxi...
Consoles: Open Firmware console

FreeBSD/powerpc Open Firmware loader, Revision 0.1
(<email address hidden>, Sun Jul 18 04:50:11 UTC 2010)
Memory: 524288KB
Booted from: cd

Loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0x72c6b8+0x3e280 syms=[0x4+0x5ac10+0x4+0x7d8ad]
/
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
Kernel entry at 0x100100 ...
panic: OFW translations above 32-bit boundary!
Uptime: 1s

-- 
PPC emulation loops on booting a FreeBSD kernel
https://bugs.launchpad.net/bugs/623852
You received this bug notification because you are a direct subscriber
of the bug.

Status in QEMU: New

Bug description:
Has anyone tried booting FreeBSD8.1-ppc under QEMU (Linux x86_64 host; PPC guest)?  I can get Linux/PPC to run fine, and FreeBSD8.1-i386 as well; but there seems to be a problem with whatever the FreeBSD8.1 kernel does, that QEMU's PPC emulation can't handle.

I am using the latest version of QEMU from GIT as of 25/8/10.  I don't know how to get a "git commit hash", so I can't quote it.

The kernel starts OK then loops after "Kernel entry at 0x100100 ...".

The command I am running is

qemu-system-ppc -cdrom FreeBSD-8.1-RELEASE-powerpc-disc1.iso -hda freebsd8.1-ppc -m 94 -boot d"

I obtained the kernel from ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/ISO-IMAGES/8.1/FreeBSD-8.1-RELEASE-powerpc-disc1.iso.

To unsubscribe from this bug, go to:
https://bugs.launchpad.net/qemu/+bug/623852/+subscribe


On 25/08/10 10:08, agraf wrote:
> It looks like a firmware issue. Please report this to
> <email address hidden>. You get the output below by using the -nographic
> option.
>    
I have done so, though to be honest I don't see that panic even if I use 
-nographic, QEMU still silently loops for me.
>>> =============================================================
>>> OpenBIOS 1.0 [Aug 17 2010 14:41]
>>> Configuration device id QEMU version 1 machine id 2
>>> CPUs: 1
>>> Memory: 512M
>>> UUID: 00000000-0000-0000-0000-000000000000
>>> CPU type PowerPC,750
>>>        
> Welcome to OpenBIOS v1.0 built on Aug 17 2010 14:41
> Trying cd:,\\:tbxi...
> Consoles: Open Firmware console
>
> FreeBSD/powerpc Open Firmware loader, Revision 0.1
> (<email address hidden>, Sun Jul 18 04:50:11 UTC 2010)
> Memory: 524288KB
> Booted from: cd
>
> Loading /boot/defaults/loader.conf
> /boot/kernel/kernel data=0x72c6b8+0x3e280 syms=[0x4+0x5ac10+0x4+0x7d8ad]
> /
> Hit [Enter] to boot immediately, or any other key for command prompt.
> Booting [/boot/kernel/kernel]...
> Kernel entry at 0x100100 ...
> panic: OFW translations above 32-bit boundary!
> Uptime: 1s
>
>    
-Nigel

-- 
Nigel Horne. Arranger, Adjudicator, Band Trainer, Composer, Tutor, Typesetter.
NJH Music, ICQ#20252325, twitter: @nigelhorne
<email address hidden> http://www.bandsman.co.uk


Please confirm that you tested with qemu-system-ppc, not qemu-system-ppc64.

I got the "above 32-bit boundary" message with ppc64 - but that's to be expected.  And given that I didn't see your message running 32-bit PPC I want to ensure that you did try with the 32-bit emulator.

Also I can confirm that I have this problem on QEMU.
I had tried booting FreeBSD8.1-ppc under QEMU (Linux x86_64 host; PPC guest) but there seems to be a problem with whatever the FreeBSD8.1 kernel does, that QEMU's PPC emulation can't handle.

I am using the latest version of QEMU from GIT as of 11/9/10.
The kernel starts OK then loops after "Kernel entry at 0x100100 ...".

Hi.

The same issue from here.

---------------------------------------------
me@host:~$ qemu-system-ppc -cdrom FreeBSD-8.2-RELEASE-powerpc-disc1.iso \
-hda freebsd8.2-ppc.img -m 94 -boot d -bios /usr/share/openbios/openbios-ppc -nographic
qemu: warning: could not load VGA bios 'video.x'

>> =============================================================
>> OpenBIOS 1.0 [Feb 19 2011 11:37]
>> Configuration device id QEMU version 1 machine id 2
>> CPUs: 1
>> Memory: 94M
>> UUID: 00000000-0000-0000-0000-000000000000
>> CPU type PowerPC,750
Welcome to OpenBIOS v1.0 built on Feb 19 2011 11:37
Trying cd:,\\:tbxi...
Consoles: Open Firmware console  

FreeBSD/powerpc Open Firmware loader, Revision 0.1
(<email address hidden>, Fri Feb 18 18:49:01 UTC 2011)
Memory: 96256KB
Booted from: cd

Loading /boot/defaults/loader.conf 
/boot/kernel/kernel data=0x7417ac+0x3e3dc syms=[0x4+0x5c110+0x4+0x7f9c7]
|
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
Kernel entry at 0x100100 ...
invalid/unsupported opcode: 1f - 12 - 05 (7d200164) 005a6ae0 0
---------------------------------------------------

My host machine is a Debian "squeeze".
I'm using the openbios-ppc from "wheeze" package.

QEMU version: 0.12.5+dfsg-3squeeze1
openbios-ppc version: 1.0+svn1018-1_all
freebsd version: FreeBSD-8.2-RELEASE-powerpc-disc1.iso


The only diference from previos posts is the last line.

------------------------
invalid/unsupported opcode: 1f - 12 - 05 (7d200164) 005a6ae0 0
------------------------

Thanks.

On 732c66ce641c69702a7e7fdb73b68f0c1b583ab5, I instead get:


Welcome to OpenBIOS v1.1 built on Oct 2 2013 22:57
Trying cd:,\\:tbxi...
Consoles: Open Firmware console  

FreeBSD/powerpc Open Firmware loader, Revision 0.1
(<email address hidden>, Sun Jul 18 04:50:11 UTC 2010)
Memory: 96256KB
Booted from: /pci@80000000/mac-io@3/ata-2@21000/cdrom@0

panic: free: guard1 fail @ 0x5d80418 from /usr/src/sys/boot/powerpc/ofw/../../common/interp_parse.c:184
--> Press a key on the console to reboot <--


Latest version from git, using FreeBSD10.0:

qemu-system-ppc64 -cdrom FreeBSD-10.0-RELEASE-powerpc-disc1.iso -hda freebsd10.0-ppc -m 256 -boot d -k en-us:



SLOF **********************************************************************
QEMU Starting
 Build Date = Mar 13 2015 22:37:28
 FW Version = git-c89b0df661c0a6bf
 Press "s" to enter Open Firmware.

Populating /vdevice methods
Populating /vdevice/vty@71000000
Populating /vdevice/nvram@71000001
Populating /vdevice/l-lan@71000002
Populating /vdevice/v-scsi@71000003
       SCSI: Looking for devices
          8000000000000000 DISK     : "QEMU     QEMU HARDDISK    2.3."
          8200000000000000 CD-ROM   : "QEMU     QEMU CD-ROM      2.3."
Populating /pci@800000020000000
 Adapters on 0800000020000000
                     00 0000 (D) : 1234 1111    qemu vga
                     00 0800 (D) : 106b 003f    serial bus [ usb-ohci ]
No NVRAM common partition, re-initializing...
Installing QEMU fb



Scanning USB 
  OHCI: initializing
    USB Keyboard 
    USB mouse 
No console specified using screen & keyboard
     


  Welcome to Open Firmware

  Copyright (c) 2004, 2011 IBM Corporation All rights reserved.
  This program and the accompanying materials are made available
  under the terms of the BSD License available at
  http://www.opensource.org/licenses/bsd-license.php


Trying to load:  from: cdrom ...   Successfully loaded
Trying to write invalid spr 540 (0x21c) at 0000000000731954
 

( 700 ) Program Exception [ 7319dc ]


    R0 .. R7           R8 .. R15         R16 .. R23         R24 .. R31
0000000000000000   0000000000000000   0000000000000000   000000000048099c   
00000000009d9e50   0000000000000000   0000000000000000   00000000009d9ef4   
0000000000a5e160   000000000000bf30   0000000000000000   00000000007319dc   
00000000009d9f2c   0000000000000000   0000000000000000   000000000048099c   
000000000048099c   0000000000000000   0000000000c0a000   0000000000000000   
00000000007319dc   0000000000000000   0000000000000004   0000000000000000   
000000000048099c   0000000000000000   0000000000000000   0000000000002000   
00000000009d9ef4   0000000000000000   0000000000000000   00000000009d9e50   

    CR / XER           LR / CTR          SRR0 / SRR1        DAR / DSISR
        84000022   0000000000731a14   0000000000731954   0000000000000000   
0000000000000000   00000000007319dc   0000000000082000           00000000  

I used the -nographic option as well, but lost it in the copy and paste.

Nigel, looking at https://www.freebsd.org/platforms/ppc.html it seems like FreeBSD does not support the pseries machines yet, only some flavours of PowerMac machines. So you should either use the "qemu-system-ppc" binary (without the "64" suffix), or you've got to specify one of the Mac machines, i.e. either "-M g3beige" or "-M mac99".

Hi, Nigel.

Support for powerpc64 is available since FreeBSD 9.0-RELEASE, I think.
FreeBSD 11.2-RC2 boots fine in QEMU (at commit 46012db666990ff2eed1d3dc)
running on an x86 host with accel=tcg.  Below are the steps I have
followed to boot it.

Build QEMU:

$ mkdir build && cd build
$ ../configure --target-list=ppc64-softmmu
$ make -j$(nproc)

Boot FreeBSD:

$ wget http://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/powerpc64/ISO-IMAGES/11.2/FreeBSD-11.2-RC2-powerpc-powerpc64-disc1.iso
$ ./qemu-img create -f qcow2 freebsd.qcow2 10G
$ ./ppc64-softmmu/qemu-system-ppc64 -name freebsd -machine pseries,accel=tcg,usb=off -m 1024 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -nographic -no-user-config -nodefaults -rtc base=utc -no-shutdown -boot strict=on -device pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x1 -device pci-ohci,id=usb,bus=pci.0,addr=0x2 -device spapr-vscsi,id=scsi0,reg=0x2000 -drive file=freebsd.qcow2,format=qcow2,if=none,id=drive-scsi0-0-0-0 -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1 -drive file=FreeBSD-11.2-RC2-powerpc-powerpc64-disc1.iso,format=raw,if=none,id=drive-scsi0-0-1-0,readonly=on -device scsi-cd,bus=scsi0.0,channel=0,scsi-id=1,lun=0,drive=drive-scsi0-0-1-0,id=scsi0-0-1-0,bootindex=2 -netdev user,id=hostnet0 -device spapr-vlan,netdev=hostnet0,id=net0,mac=4c:45:42:45:01:18,reg=0x1000 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 -msg timestamp=on -serial mon:stdio

Since this bug is almost 8 years old and FreeBSD powerpc64 seems to be
working just fine, I will close it.  Feel free to submit a new one if
needed.

Cheers
Murilo