Re: [Qemu-devel] video bios execution

Re: [Qemu-devel] video bios execution

[Marc Dietrich]

Hi, 

I looked at the uboot list and source, but found nothing related to that 
problem. I found an outdated project at ftp://vlab1.iram.es/pub/other/
em86_user.tgz, but failed to compile it. There are some undefined symbols to 
st_le16, ld_le16, etc. which are only defined in kernel. There is no Makefile 
and I don't know much about C... Can anyone tell me how to link this thing? 
Maybe this project can be integrated into qemu.
Sorry if this is offtopic.

Marc

>> Hello,
>> 
>> is it possible to use qemu for executing a video bios to initialize 
graphics 
>> card on a non i386 (here powerpc) machine? I have a ati mach64 graphics 
card, 
>> a b/w G3 and a Motorola Powerstack for testing.
>
> You'd need to wire the real IOs some way, and fake the VGA memory that
> is not available on the Macs at least, but it should be possible.
>
> There are projects already doing just that though, look at the uBoot
> bootloader (used by the recent Amiga PPC machines) and XFree's Int10
>
> Ben.

Re: [Qemu-devel] video bios execution

[Benjamin Herrenschmidt]

On Mon, 2003-11-17 at 00:10, Marc Dietrich wrote:
> Hi, 
> 
> I looked at the uboot list and source, but found nothing related to that 
> problem. I found an outdated project at ftp://vlab1.iram.es/pub/other/
> em86_user.tgz, but failed to compile it. There are some undefined symbols to 
> st_le16, ld_le16, etc. which are only defined in kernel. There is no Makefile 
> and I don't know much about C... Can anyone tell me how to link this thing? 
> Maybe this project can be integrated into qemu.
> Sorry if this is offtopic.

uboot definitely has one, it's a bit hidden though, I think in the
AmigaOne platform code last time I looked

Ben.

[Qemu-devel] video bios execution

[Marc Dietrich]

Hello,

is it possible to use qemu for executing a video bios to initialize a graphics 
card on a non i386 (here powerpc) machine? I have a ati mach64 graphics card, 
a b/w G3 and a Motorola Powerstack for testing.

Thanks

Marc

Re: [Qemu-devel] video bios execution

[Benjamin Herrenschmidt]

On Sun, 2003-11-16 at 05:21, Marc Dietrich wrote:
> Hello,
> 
> is it possible to use qemu for executing a video bios to initialize a graphics 
> card on a non i386 (here powerpc) machine? I have a ati mach64 graphics card, 
> a b/w G3 and a Motorola Powerstack for testing.

You'd need to wire the real IOs some way, and fake the VGA memory that
is not available on the Macs at least, but it should be possible.

There are projects already doing just that though, look at the uBoot
bootloader (used by the recent Amiga PPC machines) and XFree's Int10

Ben.