[Qemu-devel] qemu-system-sparc

[Qemu-devel] qemu-system-sparc

[Blue Swirl]

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Hi,

There are still bugs in the Sparc system emulator, currently it is not 
usable for anything.

The best I can get with CVS+patches is a trivial user-space program printing 
"Hello World!". Anything more advanced, like /sbin/init or /bin/bash crashes 
after a few system calls.

Here's a screenshot, its made with Linux 2.6.11 + a TCX patch from 
sparc-linux list, also Proll has some fixes.

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Re: [Qemu-devel] qemu-system-sparc

[Guilherme de S. Pastore]

Em Thu, 10 Mar 2005 16:51:52 +0100,
"Blue Swirl" <blueswir1@hotmail.com> escreveu:

> Here's a screenshot, its made with Linux 2.6.11 + a TCX patch from 
> sparc-linux list, also Proll has some fixes.

Can't this be because the "Hello world" program is being used as init
and terminated? I certainly do not know, it's just an idea =)

Best regards,

--
Guilherme de S. Pastore (fatalerror)
<gpastore@colband.com.br>

Re: [Qemu-devel] qemu-system-sparc

[Damien Mascord]

Guilherme de S. Pastore wrote:

>Em Thu, 10 Mar 2005 16:51:52 +0100,
>"Blue Swirl" <blueswir1@hotmail.com> escreveu:
>
>  
>
>>Here's a screenshot, its made with Linux 2.6.11 + a TCX patch from 
>>sparc-linux list, also Proll has some fixes.
>>    
>>
>
>Can't this be because the "Hello world" program is being used as init
>and terminated? I certainly do not know, it's just an idea =)
>
>Best regards,
>
>--
>Guilherme de S. Pastore (fatalerror)
><gpastore@colband.com.br>
>  
>
I think he is saying that anything other than a "Hello World" program
crashes (ie /sbin/init or /bin/bash), whereas Hello World does run, and
then succesfully terminate without causing a crash :)

Damien

[Qemu-devel] Re: qemu-system-sparc

[Joerg Platte]

Am Donnerstag, 10. März 2005 16:51 schrieb Blue Swirl:
Hi!

> There are still bugs in the Sparc system emulator, currently it is not
> usable for anything.

:-( 

> The best I can get with CVS+patches is a trivial user-space program
> printing "Hello World!". Anything more advanced, like /sbin/init or
> /bin/bash crashes after a few system calls.

Are you working on this bugs, or maybe somebody else? Currently, qemu seems to 
be the only freely available sparc32 emulator. 

> Here's a screenshot, its made with Linux 2.6.11 + a TCX patch from
> sparc-linux list, also Proll has some fixes.

This looks quite good, except for the last two lines :-) Where can I find the 
required patches? 

regards,
Jörg

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[Qemu-devel] Re: qemu-system-sparc

[Blue Swirl]

Hi,

Maybe you could help with the emulator, I don't have so much time and 
Fabrice is working more on x86 side. My guess is that there are only very 
small bugs now.

Qemu patches contain TCX DAC addition, FDC fixes, first step for ESP SCSI 
controller and a MMU fix (not sure if it helps). Proll patch adds escape 
code support and configuration data gets passed via NVRAM. The changes are 
not compatible, so you can't use a newer Proll with older Qemu.

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[Qemu-devel] Re: qemu-system-sparc

[Blue Swirl]

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Hi,

Here are the patches, first I pressed the wrong button and then the list 
size limit caused the message to bounce. The TCX patch for Linux 2.6.11 can 
be found at:
http://marc.theaimsgroup.com/?l=linux-sparc&m=110991224711340&w=2

TCX console use:
qemu-system-sparc -kernel ../linux-2.6.11/arch/sparc/boot/image -L 
../proll-patch7/qemu/ -initrd ../initrd -append 'root=/dev/ram' -g 1024x768

Serial console:
qemu-system-sparc -kernel ../linux-2.6.11/arch/sparc/boot/image -L 
../proll-patch7/qemu/ -initrd ../initrd -append 'console=ttyS3 
video=tcxfb:off root=/dev/ram' -nographic

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[Qemu-devel] Re: qemu-system-sparc

[Blue Swirl]

Hi,

You are probably using 2.4 or older target kernel? They don't work yet, for 
example prom tree reading often goes to infinite loop. Please try 2.6 
series, 2.6.11+tcx kernel in the Qemu downloads section should work.

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