Re: [Qemu-devel] Re: [OpenBIOS] QEMU OpenBIOS booting?

[Blue Swirl <blauwirbel@gmail.com>]

On 4/20/09, M. Warner Losh <imp@bsdimp.com> wrote:
> In message: <f43fc5580904191144y1fd8e4d6m3321855d0c558250@mail.gmail.com>
>             Blue Swirl <blauwirbel@gmail.com> writes:
>
> : On 4/19/09, M. Warner Losh <imp@bsdimp.com> wrote:
>  : > In message: <f488382f0904190128l4383a56eu67a2f16eb338e61c@mail.gmail.com>
>  : >
>  : >             Steven Noonan <steven@uplinklabs.net> writes:
>  : >  : I eventually decided it made more
>  : >  : sense to get QEMU working instead. I did notice that the pre-OpenBIOS
>  : >  : version of QEMU was able to boot Mac OS X via Open Hack'Ware, so I was
>  : >  : annoyed to find that OpenBIOS didn't have such support. So, I might as
>  : >  : well add it.
>  : >
>  : >
>  : > Open Hackware was barely enough to boot older versions of Linux.
>  : >  Other operating systems that needed more extensive properties from the
>  : >  OpenFirmware device tree failed to boot because they weren't present.
>  : >  I was involved in a large effort to get FreeBSD/powerpc booting on
>  : >  QEMU only to have it fail utterly because the amount of hacking on
>  : >  OpenHackWare needed was rather large and mysterious...
>  :
>  : This is what I get with OpenBIOS:
>  : >> *** Boot failure! No secondary bootloader specified ***
>  :
>  : 0 > boot cd:,\boot\loader cd:0
>  : Consoles: Open Firmware console
>  :
>  : FreeBSD/Open Firmware/PowerPC bootstrap loader, Revision 0.1
>  : (root@xserve.lan.xcllnt.net, Thu Apr 16 18:47:58 UTC 2009)
>  : Memory: 131072KB
>  : Booted from: cd
>  :
>  : Loading /boot/defaults/loader.conf
>  : /boot/kernel/kernel data=0x4a4ce0+0x3d4e4 syms=[0x4+0x454f0+0x4+0x5a4b9]
>  : /
>  : Hit [Enter] to boot immediately, or any other key for command prompt.
>  : Booting [/boot/kernel/kernel]...
>  : Kernel entry at 0x13dac0 ...
>  : panic: moea_bootstrap: no space to copy translations
>  : Uptime: 1s
>
>
> That's similar to the one that I've seen as well.  The problem with
>  this one, IIRC, is that FreeBSD/powerpc is trying to setup the memory
>  translations for the MMU and the 'translations' property length is
>  zero, or something like that...

Right, the error comes from this line:
http://fxr.watson.org/fxr/source/powerpc/powerpc/mmu_oea.c?v=FREEBSD70#L825