On Tue, Jan 24, 2023 at 2:49 AM BALATON Zoltan <bala...@eik.bme.hu> wrote:
> On Tue, 24 Jan 2023, Howard Spoelstra wrote: > > From a Mac OS guest perspective, via=cuda is needed for Mac OS 9.0.4 due > to > > the 2 usb devices (mouse/kbd) issue. And for 10.0/10.1 (my guess would be > > that these suffer the same usb issue) > > The real powermac3,1 AGP has no adb. > > And do these OSes run on real PowerMac3,1? If so then we likely have a bug > in USB emulation so maybe that could be fixed? In any case my patch does > not change mac99 and this should continue to work. > > > via=cuda supports Mac OS 9.0.4 up to OS X 10.4. via=pmu is strictly only > > needed for Mac OS X 10.5 guest (for which the speed reported was hacked > to > > 900Mhz to fool the installer), but should support all Mac OS/OS X that > are > > now supported. > > Since via=pmu is what should be a real machine does it run OS X >=10.2 > already? > A real powermac3,1 (G4 400Mhz/AGP) runs 8.6 up to10.4.11 qemu-system-ppc status: 8.6 will not boot from CD or HD. 9.0.4* with via=pmu only supports mouse, not kbd. Needs via=cuda due to 2 usb device problem 9.1 and 9.2 with via=pmu 10.0 and 10.1 with via=pmu: no mouse and kdb. Needs via=cuda. (so also with an usb problem) 10.2 with via=pmu (but has serious graphics speed problem, also with via=cuda) 10.3 and 10.4 with via=pmu 10.5 only with via=pmu (but needs the 900Mhz speed hack). *9.0.4 will only run with Mac OS Rom version 5.2.1 and above. It seems via=pmu provides usb mouse first, usb kbd second. With Mac OS 9.0.4 the second device will not work. With 10.0 / 10.1 both usb mouse and kbd do not work. Real hardware provides two USB buses: USB 0 and USB 1. In Qemu by default I only see one bus: USB 0 into which both mouse and kdb are plugged. On the real G4 the mouse and kbd are each plugged into another bus, so I see the kbd on e.g. USB 0 and the mouse on e.g. USB 1. With -M mac99,via=cuda one USB bus is always created. It has id "usb-bus" We can add a second USB bus with e.g. -device pci-ohci,id=usb1 (this is the Apple USB controller). Then add mouse and kbd to different buses with: -device usb-mouse,bus=usb-bus.0 (attaches to first and default bus) -device usb-kbd,bus=usb1.0 (attaches to second bus). This then mimics what I see on real hardware. Should qemu-system-ppc by default provide the same? > > via=pmu-adb seems only needed to trick mac os server installations that > > would later run on the g3beige. > > > > To my knowledge 32 bit Linux guests all require via=pmu > > See here: https://wiki.qemu.org/Documentation/Platforms/PowerPC > > That doc might need some updating. It seems to be from before pegasos2 was > added. Maybe we would be better off linking from this page to others that > are more actively maintained such as: > https://www.emaculation.com/doku.php/qemu > and > http://zero.eik.bme.hu/~balaton/qemu/amiga/ > > I "maintain" that page with only general information. I can link to the specific sites you mention. > or even better updating the main docs in > > https://www.qemu.org/docs/master/system/ppc/powermac.html > > That would have to be taken up by someone else. Best, Howard
