Re: [Qemu-devel] [RFC][PATCH 000/111] QEMU m68k core additions

[Rob Landley]

On 08/18/2011 02:42 PM, Natalia Portillo wrote:
> Hi Laurent,
> 
> El 18/08/2011, a las 15:02, Laurent Vivier escribió:
> 
>>  
>>
>> Le 18 août 2011 à 13:12, "François Revol" <address@hidden
>> <mailto:address@hidden>> a écrit :
>>
>> > Le -10/01/-28163 20:59, Laurent Vivier a écrit :
>> > > Le mercredi 17 août 2011 à 17:35 -0500, Anthony Liguori a écrit :
>> > >> On 08/17/2011 03:46 PM, Bryce Lanham wrote:
>> > >>> These patches greatly expand Motorola 68k emulation within qemu,
>> and are what I used as a basis for my
>> > >>> Google Summer of Code project to add NeXT hardware support to QEMU.
>> > >>
>> > >> Please don't crap flood the list with a series of 100 patches.
>> > >>
>> > >> Split things into logical chunks such that a series can be
>> reasonably
>> > >> reviewed and applied.
>> > >
>> > > And I'm not sure this series of patches is ready for inclusion in
>> qemu
>> > > mainline as it should break existing m68k emulation...
>> > >
>> > > Bryce, you should only post your patches, refering to the
>> repository on
>> > > which they apply, i.e. git://gitorious.org/qemu-m68k/qemu-m68k.git ,
>> > > master branch.
>> > >
>> >
>> > Btw, are you planning on merging it back someday?
>> >
>>
>>  
>>
>> Yes... when it will work correctly.
>>
>>  
>>
>> I have at least, to rework 680x0 FPU part (80bit fpu) to not break the
>> existing one (64bit fpu).
>> I have to check modified instructions don't break existing m68k emulation.
> 
> Maybe Bryce can help you

I have a build system that builds the same simple Linux system for a
dozen different targets (uClibc 0.9.32, Linux 3.0, busybox 1.19.0,
binutils 2.17, gcc 4.2.1, make 3.81), boots them all under qemu the same
way, and either interactively use them or can automatically build the
whole of Linux From Scratch under them (either with a fully native
toolchain or with distcc calling out to the cross compiler to speed
things up).

I would very much like to test m68k.  I've been building m68k system
images forever (the kernel's some atari variant donated to the project
by a user), but have only been able to test them a couple times under
aranym, not under qemu.

Web page:
  http://landley.net/aboriginal

Prebuilt binary system images for use with qemu:
  http://landley.net/aboriginal/downloads/binaries

>> Currently, I'm trying to port some parts of BasiliskII into Qemu to be
>> able to boot MacOS 7.6.
> 
> Why are you planning to port a hack instead of making a full machine
> emulation?

Yay machine emulation.  If qemu comes up with an m68k system emulation
that has a chance of running Linux, please let me know...

Rob