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

[David Gibson]

On Fri, Oct 30, 2015 at 04:48:12PM +0000, Mark Cave-Ayland wrote:
> On 23/10/15 14:56, Mark Cave-Ayland wrote:
> 
> > 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.
> > 
> > Apologies for the delay in sending this out on-list, however due to recent
> > circumstances I've been without a reliable broadband connection for a couple
> > of weeks. However given that this is mostly a rework of the previous 
> > patchset 
> > and looks good in testing here, I'd definitely like it to be considered for
> > application during soft freeze.
> > 
> > Signed-off-by: Mark Cave-Ayland <address@hidden>
> > 
> > Alexander Graf (3):
> >   PPC: Allow Rc bit to be set on mtspr
> >   PPC: Fix lsxw 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    |  243 
> > ++++++++++++++++++++++++++++++-----------------
> >  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, 163 insertions(+), 93 deletions(-)
> 
> Ping? Can anyone review this in Alex's absence? In the meantime I've
> added it to wiki at http://wiki.qemu.org/Planning/2.5 as it would be
> good to get the GSoC work upstream for 2.5.

Sorry I've taken a while to get to this.  It looks pretty good, though
I've sent a handful of comments on individual patches.

I gathered from one of your replies that you do intend to do a
respin.  The current comments all look pretty trivial, so I expect
I'll be ok to apply your respin to ppc-next (which I'm looking after
in agraf's absence).  It would be nice to get a review from someone
more familiar with, or better able to test MacOS stuff.

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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