On 2/2/24 19:04, Guenter Roeck wrote:
On Fri, Feb 02, 2024 at 10:54:20AM +0100, Helge Deller wrote:
Hi Guenter,
On 2/2/24 05:22, Guenter Roeck wrote:
On Sat, Jan 13, 2024 at 06:57:20AM +0100, del...@kernel.org wrote:
From: Helge Deller <del...@gmx.de>
Recognize the qemu --nodefaults option, which will disable the
following default devices on hppa:
- lsi53c895a SCSI controller,
- artist graphics card,
- LASI 82596 NIC,
- tulip PCI NIC,
- second serial PCI card,
- USB OHCI controller.
Adding this option is very useful to allow manual testing and
debugging of the other possible devices on the command line.
With this patch in the tree, I get some interesting crashes in Seabios
if I provide a somewhat unusual command line option. For example,
something like
-usb -device usb-ehci,id=ehci \
-device usb-uas,bus=ehci.0,id=uas \
-device scsi-hd,bus=uas.0,scsi-id=0,lun=0,drive=d0 \
-drive file= ...
is accepted as command line option but results in
SeaBIOS PA-RISC 32-bit Firmware Version 15 (QEMU 8.2.1)
Duplex Console IO Dependent Code (IODC) revision 1
------------------------------------------------------------------------------
(c) Copyright 2017-2024 Helge Deller <del...@gmx.de> and SeaBIOS developers.
------------------------------------------------------------------------------
Processor Speed State Coprocessor State Cache Size
--------- -------- --------------------- ----------------- ----------
0 250 MHz Active Functional 0 KB
1 250 MHz Idle Functional 0 KB
2 250 MHz Idle Functional 0 KB
3 250 MHz Idle Functional 0 KB
Emulated machine: HP C3700 (64-bit PA2.0) with 32-bit PDC
Available memory: 1024 MB
Good memory required: 16 MB
Primary boot path: FWSCSI.0.0
Alternate boot path: FWSCSI.0.0
Console path: SERIAL_2.9600.8.none
Keyboard path: SERIAL_2.9600.8.none
*ERROR* in SeaBIOS-hppa-v15:
prepare_boot_path:2898
SeaBIOS wants SYSTEM HALT.
This is without --nodefaults, and it used to work. Is that intentional ?
This should now be fixed in the upcoming SeaBIOS-hppa-v16 version ("devel"
branch):
https://github.com/hdeller/seabios-hppa/tree/devel
Could you test?
I was able to build from the 'master' branch, but 'devel' gives me
hppa64-linux-ld: target elf32-hppa-linux not found
The devel branch now includes a 64-bit firmware too.
You need both, hppa (32-bit) and hppa64 (64-bit) gcc
and binutils packages installed.
Do you have a binary seabios image, by any chance ?
http://www.dellerweb.de/temp/hppa-firmware.img
If it doesn't work, please give me the full command line.
qemu-system-hppa -M C3700 -smp 4 \
-kernel vmlinux -no-reboot -snapshot \
-usb -device usb-ehci,id=ehci \
-device usb-uas,bus=ehci.0,id=uas \
-device scsi-hd,bus=uas.0,scsi-id=0,lun=0,drive=d0 \
-drive file=rootfs.ext2,if=none,format=raw,id=d0 \
-append "root=/dev/sda rootwait console=ttyS0,115200" \
-nographic -monitor null
That line boots for me now.
This is with qemu 8.2.1. Note that the number of CPUs doesn't make a
difference. It turns out this also crashes/aborts immediately with
"nodefaults".
Adding "--nodefaults -serial mon:stdio" to the line above works too.
If I do use the --nodefaults parameter, I was unable to figure out how
to configure the serial console. What command line parameter(s) do I need to
get it ?
You need to add:
-serial mon:stdio
This will create a serial port if it's not yet there.
And there was me trying all variants of "-device pci-serial-4x..." I could
think of ;-).
:-)
Helge
