Re: [Qemu-devel] [Qemu-ppc] [PATCH v3 0/4] ppc: add a IBM 40p machine (RS/6000, PReP)

[David Gibson]

On Mon, Jan 09, 2017 at 08:43:47AM +0100, Thomas Huth wrote:
> On 07.01.2017 16:23, Hervé Poussineau wrote:
> > Hi,
> > 
> > This patchset adds the emulation of the IBM RS/6000 7020 (40p). The real 
> > machine is
> > able to run AIX (up to 4.3.3), Windows NT (up to 4.0 SP1), the beta of OS/2 
> > PowerPC,
> > Solaris, Linux, NetBSD/PReP ...
> > 
> > I've tested current emulation with Open Hack'Ware, OpenBIOS and official 
> > firmware.
> > 
> > Linux kernel starts, and freezes during boot (seems like a problem with the 
> > SCSI adapter).
> > Windows NT starts up to the point where it wants to change endianness.
> > Other OSes have not been tested.
> > 
> > This machine is a superset of the 'prep' one, because we know exactly what 
> > is/should
> > emulated, and that operating system list running on it is quite wide.
> > I hope that 'prep' machine can be deprecated soon and then later removed.
> > 
> > Patch 1 is a cleanup, and can probably be committed first.
> > Patches 2 to 4  are the real implementation of the IBM 40p.
> > 
> > Changes since v2:
> > - patch 2: fix mismatch between read and write functions for port 92
> > - patch 4: use error_report instead of fprintf/hw_error
> > 
> > Changes since v1:
> > - removed patches related to display adapter:
> >   Let's wait for an emulation of the real display adapter (an S3 Trio), as 
> > current
> >   VGA adapter already mostly works with Open Hack'Ware and OpenBIOS
> > - various changes due to David Gibson's remarks
> > 
> > Hervé Poussineau (4):
> >   prep: do not use global variable to access nvram
> >   prep: add PReP System I/O
> >   prep: add IBM RS/6000 7020 (40p) memory controller
> >   prep: add IBM RS/6000 7020 (40p) machine emulation
> > 
> >  default-configs/ppc-softmmu.mak |   2 +
> >  hw/ppc/Makefile.objs            |   2 +
> >  hw/ppc/prep.c                   | 233 +++++++++++++++++++++++++++++-
> >  hw/ppc/prep_systemio.c          | 303 
> > ++++++++++++++++++++++++++++++++++++++++
> >  hw/ppc/rs6000_mc.c              | 232 ++++++++++++++++++++++++++++++
> >  hw/ppc/trace-events             |  11 ++
> >  6 files changed, 781 insertions(+), 2 deletions(-)
> >  create mode 100644 hw/ppc/prep_systemio.c
> >  create mode 100644 hw/ppc/rs6000_mc.c
> 
> By the way, the PReP machine currently does not have a proper maintainer
> according to the MAINTAINERS file ... would you maybe volunteer to do
> that job? If so, could you please send a patch for the MAINTAINERS file?

Yes, that would be much appreciated.

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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