[Qemu-ppc] [PATCH v2 00/13] Mac OS 9 compatibility improvements (upstream rework)

[Mark Cave-Ayland]

This is a rework of Cormac O'Brien's GSoC project to try and boot MacOS 9 under
QEMU, the original version of which was posted to the qemu-devel list at the
end of August 
(https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02521.html).

The patchset consisted of some simple patches from Alex and then a large set of
CUDA changes supplied as a single patch which were the result of Cormac 
analysing
MOL with Alex's help to try and further the boot process.

In their previous form, the patches were unsuitable for applying upstream since
while they furthered MacOS 9 boot, they also caused a couple of major 
regressions
such as breaking the mouse and causing Darwin/OS X boot to panic on startup.

This reworked patchset fixes these regressions, includes some other clean-ups 
and more importantly now passes all of my OpenBIOS image boot tests with an 
OpenBIOS binary from SVN trunk (separate pull request to be sent shortly).
Whilst OpenBIOS still needs one additional patch to run the MacOS 9 bootloader,
I've uploaded a pre-compiled binary to 
https://www.ilande.co.uk/tmp/openbios-ppc for people interested in testing the 
new MacOS 9 functionality.

Signed-off-by: Mark Cave-Ayland <address@hidden>

v2:
- Rebase onto master
- Fix lswx subject typo
- Add RB tags from David and Thomas
- Update comments as suggested by David


Alexander Graf (3):
  PPC: Allow Rc bit to be set on mtspr
  PPC: Fix lswx bounds checks
  PPC: mac99: Always add USB controller

Mark Cave-Ayland (10):
  cuda.c: fix CUDA ADB error packet format
  cuda.c: fix CUDA_PACKET response packet format
  cuda.c: implement simple CUDA_GET_6805_ADDR command
  cuda.c: implement dummy IIC access commands
  cuda.c: fix CUDA SR interrupt clearing
  cuda.c: add defines for CUDA registers
  cuda.c: refactor get_tb() so that the time can be passed in
  cuda.c: rename get_counter() state variable from s to ti for
    consistency
  cuda.c: fix T2 timer and enable its interrupt
  cuda.c: add delay to setting of SR_INT bit

 hw/misc/macio/cuda.c    |  246 ++++++++++++++++++++++++++++++-----------------
 hw/ppc/mac.h            |    3 +
 hw/ppc/mac_newworld.c   |    3 +-
 target-ppc/mem_helper.c |    5 +-
 target-ppc/translate.c  |    2 +-
 5 files changed, 166 insertions(+), 93 deletions(-)

-- 
1.7.10.4