On Tue, 28 Jan 2025, Cédric Le Goater wrote:
+ self.vm.set_console()
+
+ self.vm.add_args('-kernel', linux_path,
+ '-append', 'root=/dev/sda',
+ '-drive', f'file={rootfs_path},format=raw',
+ '-net', 'nic,model=sungem', '-net', 'user',
The machine already has a default sungem NIC so maybe you can omit that
too.
Yes. It works well without it. Will remove the nic.
The user network used to be the default so even that may not be needed but
I'm not sure if that's still the case since libslirp was moved out. Wasn't
the preferred option -netdev user nowadays and -device for the card?
+ '-snapshot', '-nographic')
I just also noticed that we already have "-display none" in
python/qemu/machine/machine.py, so you likely don't need the -nographic
here (but looks like we've got that wrong in a bunch of tests already).
I think we need -nographic else OpenBIOS crashes. I will check.
It should not crash
It doesn't crash indeed, but it complains :
2025-01-28 21:55:24,498: >> CPU type PowerPC,970FX
2025-01-28 21:55:24,501: milliseconds isn't unique.
2025-01-28 21:55:24,540: Output device screen not found.
2025-01-28 21:55:24,545: Output device screen not found.
2025-01-28 21:55:24,548: >> [ppc] Kernel already loaded (0x01000000 +
0x014a8b58) (initrd 0x00000000 + 0x00000000)
2025-01-28 21:55:24,548: >> [ppc] Kernel command line: root=/dev/sda
2025-01-28 21:55:24,560: >> switching to new context:
2025-01-28 21:55:24,567: NULL ihandle
2025-01-28 21:55:24,567: Unexpected client interface exception: -2
and there is no console ouput. With -nographic :
I think the Linux platform init code outputs something via OpenFirmware
before it parses the command line and OpenBIOS can't handle that when
there's no display. So either -vga none or -nographic is needed to remove
the VGA card and get OpenBIOS to fall back to serial.
Regards,
BALATON Zoltan
2025-01-28 22:19:42,938: >> CPU type PowerPC,970FX
2025-01-28 22:19:42,941: milliseconds isn't unique.
2025-01-28 22:19:42,993: Welcome to OpenBIOS v1.1 built on Sep 24 2024
19:56
2025-01-28 22:19:42,997: >> [ppc] Kernel already loaded (0x01000000 +
0x014a8b58) (initrd 0x00000000 + 0x00000000)
2025-01-28 22:19:42,997: >> [ppc] Kernel command line: root=/dev/sda
2025-01-28 22:19:43,010: >> switching to new context:
2025-01-28 22:19:43,018: OF stdout device is:
/pci@f0000000/mac-io@c/escc@13000/ch-a@13020
but maybe it displays then on the graphics output so you won't get the
needed feedback on serial? Although -append 'console=tty<whatever it's
called on that machine>' might fix that.
Nope.
But using -nographic makes sense for a serial only test.
I will keep -nographic for this test.
Thanks,
C.
