Re: [Qemu-devel] [PATCH 0/4] PPC IBM 40p PReP emulation

[Artyom Tarasenko]

Hi Hervé,

On Wed, Jun 10, 2015 at 11:18 PM, Hervé Poussineau <address@hidden> wrote:
> Hi,
>
> This patchset adds the emulation of the IBM RS/6000 7020 (40p).

Well done! Congratulations on a good job!

> 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 Firmware PReP and with official 
> firmware.
> Patch 2 has been of a great help when using official firmware. However, if 
> required,
> I can drop it.
>
> Linux kernel runs.
> Windows NT starts up to the point where it wants to change endianness.
> Other OSes have not been tested.

Solaris would likely have the same problem: it's little-endian on PReP.

> To test, download firmware a http://tyom.de/qprepofw-serial-svn-3738.rom . 
> Thanks Artyom!

You are welcome. I see your machine is using a S3 graphic card. If you
like I can add a driver for it.
Not within the next days though. Out of curiosity: is the proprietary
firmware also able to use a Cirrus Logic card?

Regards,
Artyom

> Then, run:
> qemu-system-ppc -M 40p -bios qprepofw-serial-svn-3738.rom -readconfig 
> ibm_40p.cfg -serial stdio
>
> Note that you can't natively boot from a hard disk using Open Firmware, as 
> 40p storage is SCSI.
>
> Hervé
>
> Hervé Poussineau (4):
>   prep: QOM'ify System I/O
>   prep: add RS/6000 debug device
>   prep: add IBM RS/6000 7020 (40p) memory controller
>   prep: add IBM RS/6000 7020 (40p) machine emulation
>
>  default-configs/ppc-softmmu.mak |   4 +
>  docs/ibm_40p.cfg                |  42 ++++++
>  hw/ppc/Makefile.objs            |   3 +
>  hw/ppc/prep.c                   |  99 +++++++++++++
>  hw/ppc/prep_systemio.c          | 300 
> ++++++++++++++++++++++++++++++++++++++++
>  hw/ppc/rs6000_debug.c           | 260 ++++++++++++++++++++++++++++++++++
>  hw/ppc/rs6000_mc.c              | 229 ++++++++++++++++++++++++++++++
>  trace-events                    |  11 ++
>  8 files changed, 948 insertions(+)
>  create mode 100644 docs/ibm_40p.cfg
>  create mode 100644 hw/ppc/prep_systemio.c
>  create mode 100644 hw/ppc/rs6000_debug.c
>  create mode 100644 hw/ppc/rs6000_mc.c
>
> --
> 2.1.4
>



-- 
Regards,
Artyom Tarasenko

SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu