Re: [RFC PATCH 0/2] Pegasos2 emulation

[BALATON Zoltan]

On Wed, 6 Jan 2021, BALATON Zoltan wrote:
> Hello,
>
> This is adding a new PPC board called pegasos2 currently posted as RFC
> because it depends on not yet merged VT8231 emulation currently on the
> list:
>
> https://patchew.org/QEMU/cover.1609967638.git.balaton@eik.bme.hu/
>
> and may need some changes like a test case but I'm posting it now for
> getting feedback on what's needed to merge this. More info on it can
> be found at:
>
> https://osdn.net/projects/qmiga/wiki/SubprojectPegasos2
>
> Currently it needs a firmware ROM image that I cannot include due to
> original copyright holder (bPlan) did not release it under a free
> licence but I have plans to write a replacement in the future. With
> that firmware it can boot MorphOS now as:
>
> qemu-system-ppc -M pegasos2 -cdrom morphos.iso -device ati-vga,romfile="" 
> -serial stdio
>
> then enter "boot cd boot.img" at the firmware "ok" prompt as described
> in the MorphOS.readme. To boot Linux use same command line with e.g.
> -cdrom debian-8.11.0-powerpc-netinst.iso then enter
> "boot cd install/pegasos"
>
> Patch 2 adds the actual board code after patch 1 adding MV64361 system
> controller chip. The mv643xx.h header file is taken from Linux and
> produces a bunch of checkpatch warnings due to different formatting
> rules it follows, I'm not sure we want to adopt it or keep it as it is
> given that it does not appear any more in recent Linux versions so we
> could reformat it as it's unlikely to get updated in the future.

Interestingly it applies for patchew while this was accidentally based on 
my previous series that has hw/ppc/Kconfig reverts so it does not apply on 
current master. Also missing a file so does not compile but other than 
that the content could be reviewed. I've now updated this repo:

https://osdn.net/projects/qmiga/scm/git/qemu/tree/pegasos2/

which contains all the needed patches over QEMU master at one place in 
case somebody wants to try this. I'll send an updated version later after 
I get some feedback.

The command lines above also need -bios /path/to/firmware.rom

Regards,
BALATON Zoltan

> BALATON Zoltan (2):
>  hw/pci-host: Add emulation of Marvell MV64361 PPC system controller
>  hw/ppc: Add emulation of Genesi/bPlan Pegasos II
>
> default-configs/devices/ppc-softmmu.mak |   2 +
> hw/pci-host/Kconfig                     |   3 +
> hw/pci-host/meson.build                 |   2 +
> hw/pci-host/mv64361.c                   | 966 ++++++++++++++++++++++++
> hw/pci-host/mv643xx.h                   | 919 ++++++++++++++++++++++
> hw/pci-host/trace-events                |   6 +
> hw/ppc/Kconfig                          |  10 +
> hw/ppc/meson.build                      |   2 +
> hw/ppc/pegasos2.c                       | 144 ++++
> 9 files changed, 2054 insertions(+)
> create mode 100644 hw/pci-host/mv64361.c
> create mode 100644 hw/pci-host/mv643xx.h
> create mode 100644 hw/ppc/pegasos2.c