PPC IBM 40p PReP emulation

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 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.

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