RE: [Qemu-devel] Re: What is the current support, state for Sparc emulation

RE: [Qemu-devel] Re: What is the current support, state for Sparc emulation

[Grzegorz Galezowski]

I just want to report, that today I tried to launch debian 3.1 r2 sparc 
net install CD for both the stable 0.9.0 and the last CVS snapshot. 
While stable threw an error at me, CVS snapshot booted debian nicely and 
installed on disk image. It even discovered internet access by DHCP, so 
there is a nice progress. Thanks and keep up the good work!

Regards,
Grzegorz Galezowski

[Qemu-devel] =?ISO-8859-2?Q?Re: What is the current support state for Sparc=09emulation??=

[spectral]

As promised, I tried today to launch Solaris 9 (CD version for Sparc, downloaded from http://www.sun.com/software/solaris/9/) on fresh CVS version checked out today. I built it using the manual on this page: http://maiux.com/qemu-windows-binaries-compile-howto but with sparc-softmmu switch in configure's options. The build went well and I tried to start the image the following way:

qemu-system-sparc -L . -m 256 -hda hda.img -cdrom sol-9-905hw-install-ga-sparc.iso -boot d -no-acpi -g 800x600 -localltime (with different variations of three last switches).

The result:

[sparc] Booting file 'cdrom' with parameters ''
Not a bootable ELF image
Not a Linux kernel image
Not a bootable a.out image
Not a bootable ELF image
Not a Linux kernel image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
Jumping to entry point...
Unhandled Exception 0x00000007
  PC = 0xffd0a55c NPC = 0xffd09374
    Stopping execution

So this is my report, I hope it can be of some use. I'll try to boot sparc version of OpenSolaris soon and I'l let you know how it went.

Regards,
Grzegorz Galezowski

Re: [Qemu-devel] Re: What is the current support state for Sparc emulation

[Jonathan Kalbfeld]

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OpenSolaris requires sparcv9, so it's unlikely that the OS will boot using
qemu-system-sparc.  However, if you can get the kernel to load and tell you
that you need 64-bit, that's probably progress.

jonathan

On 7/19/07, spectral@op.pl <spectral@op.pl> wrote:
>
> As promised, I tried today to launch Solaris 9 (CD version for Sparc,
> downloaded from http://www.sun.com/software/solaris/9/) on fresh CVS
> version checked out today. I built it using the manual on this page:
> http://maiux.com/qemu-windows-binaries-compile-howto but with
> sparc-softmmu switch in configure's options. The build went well and I tried
> to start the image the following way:
>
> qemu-system-sparc -L . -m 256 -hda hda.img -cdrom
> sol-9-905hw-install-ga-sparc.iso -boot d -no-acpi -g 800x600 -localltime
> (with different variations of three last switches).
>
> The result:
>
> [sparc] Booting file 'cdrom' with parameters ''
> Not a bootable ELF image
> Not a Linux kernel image
> Not a bootable a.out image
> Not a bootable ELF image
> Not a Linux kernel image
> Loading a.out image...
> Loaded 7680 bytes
> entry point is 0x4000
> Jumping to entry point...
> Unhandled Exception 0x00000007
>   PC = 0xffd0a55c NPC = 0xffd09374
>     Stopping execution
>
> So this is my report, I hope it can be of some use. I'll try to boot sparc
> version of OpenSolaris soon and I'l let you know how it went.
>
> Regards,
> Grzegorz Galezowski
>
>
>


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Jonathan Kalbfeld
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Re: [Qemu-devel] Re: What is the current support state for Sparc emulation

[Andreas Färber]

Am 19.07.2007 um 17:58 schrieb Jonathan Kalbfeld:

> if you can get the kernel to load and tell you that you need 64- 
> bit, that's probably progress.

When booting Solaris 10 some while ago it did tell me that without  
such exception. Will check if a regression was introduced.

Andreas

Re: [Qemu-devel] Re: What is the current support state for Sparc emulation

[Blue Swirl]

On 7/19/07, spectral@op.pl <spectral@op.pl> wrote:
> Unhandled Exception 0x00000007
>   PC = 0xffd0a55c NPC = 0xffd09374
>     Stopping execution
>
> So this is my report, I hope it can be of some use. I'll try to boot sparc version of OpenSolaris soon and I'l let you know how it went.

Thanks for the report. Exception 7 is unaligned access, support for
detection of unaligned accesses in QEMU was improved recently.

The exception happens inside OpenBIOS:
0xffd0a55c is in lstore (kernel/forth.c:649).
644
645     static void lstore(void)
646     {
647             const u32 *aaddr = (u32 *)cell2pointer(POP());
648             const u32 longval = POP();
649             write_long(aaddr, longval);
650     }

Maybe write_long should handle unaligned addresses?