[Qemu-devel] [RFC 0/6] ppc/prep: add IBM RS/6000 43p machine

[Hervé Poussineau]

Hi,

This patchset (sent as RFC) adds an emulation of the IBM RS/6000 43p, also 
known as 7248.
It contains the strict minimum to be able to boot a PReP boot partition on a 
IDE hard disk.

It has been tested with the official firmware, named P93H1904.IMG.
However, Andreas has already some preliminary patches for OpenBIOS to support 
PReP machines.

Command line may look like
qemu-system-ppc -M 43p -bios P93H1904.IMG -readconfig ibm_43p.cfg
-device ide-hd,drive=hd0 -drive if=none,id=hd0,cache=writeback,file="hda.qcow2"

Known bugs/missing parts:
- incomplete MPC105 (PCI host bridge) emulation (IRQs, memory controller)
- no video card (should be a S3)
- can't boot from IDE cdroms (overlapping commands not supported by QEMU IDE 
emulation)
- can't boot from floppies (READ commands are issued, but it seems completion 
is ignored)
- can't boot from network
- hack added in the m48t59 device (anyone knowing the m48t59 emulation to 
comment?)
- QEMU can't change endianness at runtime

Patchet also doesn't pass checkpatch.pl yet.

Please comment.

Regards,

Hervé

Hervé Poussineau (6):
  pci: add MPC105 PCI host bridge emulation
  prep: add IBM RS/6000 7248 (43p) machine emulation
  prep: add RS/6000 debug device
  m48t59: move ISA ports registration to QOM constructor
  m48t59: hack(?) to make it work on IBM 43p
  prep: QOM'ify System I/O

 default-configs/ppc-softmmu.mak |    1 +
 docs/ibm_43p.cfg                |   48 +++++
 hw/Makefile.objs                |    1 +
 hw/m48t59.c                     |   11 +-
 hw/mpc105.c                     |  419 +++++++++++++++++++++++++++++++++++++++
 hw/pci/pci_ids.h                |    1 +
 hw/ppc/Makefile.objs            |    2 +
 hw/ppc/prep.c                   |   94 +++++++++
 hw/ppc/prep_systemio.c          |  290 +++++++++++++++++++++++++++
 hw/ppc/rs6000_debug.c           |  260 ++++++++++++++++++++++++
 trace-events                    |   11 +
 11 files changed, 1133 insertions(+), 5 deletions(-)
 create mode 100644 docs/ibm_43p.cfg
 create mode 100644 hw/mpc105.c
 create mode 100644 hw/ppc/prep_systemio.c
 create mode 100644 hw/ppc/rs6000_debug.c

-- 
1.7.10.4