Re: [PATCH v4 00/24] q800: add support for booting MacOS Classic - part 1

[Mark Cave-Ayland]

On 21/06/2023 10:42, Philippe Mathieu-Daudé wrote:

> On 21/6/23 10:53, Mark Cave-Ayland wrote:
> > [MCA: the original series has now been split into 2 separate parts based upon
> > Phil's comments re: QOM parenting for objects in Q800MachineState. Part 1
> > consists of the Q800MachineState patches along with QOM parenting fixes and
> > the 2 mac_via RTC patches.]
> >
> > This series contains the remaining patches needed to allow QEMU's q800
> > machine to boot MacOS Classic when used in conjunction with a real
> > Quadra 800 ROM image. In fact with this series applied it is possible
> > to boot all of the following OSs:
> >
> >    - MacOS 7.1 - 8.1, with or without virtual memory enabled
> >    - A/UX 3.0.1
> >    - NetBSD 9.3
> >    - Linux (via EMILE)
> >
> > If you are ready to experience some 90s nostalgia then all you need is
> > to grab yourself a copy of the Quadra 800 ROM (checksum 0xf1acad13) and a
> > suitable install ISO as follows:
> >
> >    # Prepare a PRAM image
> >    $ qemu-img create -f raw pram.img 256b
> >
> >    # Launch QEMU with blank disk and install CDROM
> >    $ ./qemu-system-m68k \
> >        -M q800 \
> >        -m 128 \
> >        -bios Quadra800.rom \
> >        -drive file=pram.img,format=raw,if=mtd \
> >        -drive file=disk.img,media=disk,format=raw,if=none,id=hd \
> >        -device scsi-hd,scsi-id=0,drive=hd \
> >        -drive file=cdrom.iso,media=cdrom,if=none,id=cd \
> >        -device scsi-cd,scsi-id=3,drive=cd
> >
> > And off you go! For more in-depth information about the installation process
> > I highly recommend the installation guide over at emaculation.com [1].
> > Compatibility is generally very good, and I'm pleased to report it is possible
> > to run one of the most popular productivity apps from the 90s [2].
>
> Could you add an Avocado test for this machine? See how the
> MipsFuloong2e test (tests/avocado/machine_mips_fuloong2e.py)
> handles the firmware (RESCUE_YL_PATH).

In theory it is possible to do this, but how do we handle booting proprietary OS ISOs 
that are still within copyright? Also this is only part 1 of the required changes, 
you'll need part 2 applied in order to achieve a successful boot :)


ATB,

Mark.