Re: [Qemu-devel] [PATCH v4 2/7] target/m68k: add MC68040 MMU

[Laurent Vivier]

Le 21/01/2018 à 20:57, Rob Landley a écrit :
> On 01/18/2018 01:38 PM, Laurent Vivier wrote:
>> Only add MC68040 MMU page table processing and related
>> registers (Special Status Word, Translation Control Register,
>> User Root Pointer and Supervisor Root Pointer).
>>
>> Transparent Translation Registers, DFC/SFC and pflush/ptest
>> will be added later.
> 
> I built qemu from thursday's git and qemu-system-m68k -M ? doesn't have
> an obvious board emulation I can aim a linux kernel at. Is there a qemu
> tree I should test, or...?
> 
> (I want to help out and test this stuff, but don't have context...)

For the moment, I didn't push a machine type that supports a M68040 CPU.

If you wan to test it, you can try my try branch at:

https://github.com/vivier/qemu-m68k.git branch q800-dev

with machine type "-M q800" emulating a Macintosh Quadra 800.

The command line I usually use is:

qemu-system-m68k -M q800 -serial none -serial mon:stdio -m 1000M \
 -drive file=virtm68k-etch.qcow2,format=qcow2 \
 -net nic,model=dp83932,addr=09:00:07:12:34:57 \
 -net bridge,helper=/usr/libexec/qemu-bridge-helper,br=virbr0 \
 -append "root=/dev/sda2 rw console=ttyS0 console=tty"\
 -kernel vmlinux-4.8.0-2-m68k -initrd initrd.img-4.8.0-2-m68k \
 -g 1600x800x24

Thanks,
Laurent