Re: [Qemu-devel] SunOS Testing on latest SVN snapshot

[JmH]

With the "enable-interpose" patch to open bios (Thanks Blue Swirl), Qemu can at least find the bootable potion of the installation media.

Unfortunately though, the boot doesnt progress very far. I have summarised the results below:

Solaris 1.0.1 (Note: SunOS 4.1.2, not 4.1.4 as below)
Boot hangs (well i left it for > 10 minutes with no further output, local CPU @ 100% on qemu-system-sparc process) after the following console output:
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
Jumping to entry point...
Bootblock: libprom.a: Romvec version 3
checksum a73ed1ff6 != 3078aade, trying to boot anyway

Solaris 1.1.1
Boot hangs as per 1.0.1, but with a slightly different checksum

Solaris 2.3
Boot hangs after the following console output
Loading a.out image...
Loaded 7483136 bytes
entry point is 0x4000
Jumping to entry point...

Solaris 2.5.1
Boot hangs after the following console output, curiously this is the first version that prints a '/' at the end of the output (which i recall is an ASCII art representation indicating that the kernel is booting)
Loading a.out image...

Loaded 7483136 bytes

entry point is 0x4000

Jumping to entry point...
/

Solaris 7
Console boots (note the spinning ASCII art correctly spins and completes) then fails. After which Qemu crashes with the following console output:
C:\Program Files\Qemu>
qemu-system-sparc.exe -m 256 -L . -cdrom "d:\solaris_7.iso" -boot d
qemu: fatal: Trying to execute code outside RAM or ROM at 0xf00415e0

pc: f00415e0  npc: f00415e4
General Registers:
%g0: 00000000   %g1: 00000004   %g2: 04000fe4   %g3: f026ff9c
%g4: 00000001   %g5: f0243b88   %g6: 00000001   %g7: f0244020
Current Register Window:
%o0: 00000000   %o1: 00000000   %o2: 00000000   %o3: 044000c4
%o4: 00000000   %o5: ffe87000   %o6: f015f828   %o7: f0041c70
%l0: 00000004   %l1: f0041c68   %l2: f0041c6c   %l3: f02690c8
%l4: 0000000f   %l5: f02630d0   %l6: 000015bb   %l7: f015f828
%i0: ffff8000   %i1: 80000000   %i2: 00000f00   %i3: 044000c5
%i4: 00000000   %i5: ffe87000   %i6: f015f8d0   %i7: f0041bd4

Floating Point Registers:
%f00: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f04: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f08: 000000000.000000 000000000.000000
 000000000.000000 000000000.000000
%f12: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f16: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f20: 000000000.000000 000000000.000000
 000000000.000000 000000000.000000
%f24: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f28: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
psr: 0x04000004 -> ---- --- wim: 0x00000008
fsr: 0x00080000

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

C:\Program Files\Qemu>

Please let me know if i can run anything that would be of assistance to hopefully chase the issues down.

As an aside does anyone know how to get the -nographic to work in windows, it current fails with 
"Unable to open driver: stdio
 qemu: could not open serial driver 'mon:stdio'

I think that there is some additional info in the Solaris 7 boot, which is placed onto the virtual machine console, that does not appear when qemu dumps the machine state after the crash.

Jason

On 19/04/07, Blue Swirl <address@hidden> wrote:

On 4/19/07, Jason Height <address@hidden> wrote:
> Inspired by Blue Swirl's statement in an earlier email that SunOS testing
> can now commence against the latest SVN snapshot, i thought that i may
> finally be able to contribute.
>
> I have available:
>
> Solaris 1.0.1 (SunOS 4.1.4)
> Solaris 2.4
> Solaris 2.5
> Solaris 6.5 (SPARC)
> Solaris 7.0 (SPARC)
> Solaris 8.0 (SPARC)

Nice selection, thanks for testing!

> I think that all should run on a Sparstation 10, certainly up to Solaris
> 7.0.
>
> However when i try to boot from the installation media to install, it would
> appear that Qemu/openbios cannot find the bootable portion of the media.

This may be related to the change that disabled the buggy interpose
operation to improve SunOS support. Unfortunately fixing the interpose
bugs is beyond my Forth skills.

> Is there some tests/changes that i can make to assist in getting this to
> work.

Can you try if the attached patch to OpenBIOS changes anything?