Sparc32/64 support

[Blue Swirl]

Hi,

I've been working on Sparc32/64 support for Qemu. Currently Qemu for Sparc32 
uses Proll as a system boot rom, but it's not a very good starting point for 
Sparc64. Basically, Linux expects a bit too much from the OpenFirmware 
interface, like Forth support etc.

I guess OpenBIOS would be a better choice. How complete do you think 
OpenBIOS is, can it boot Linux for example on some architecture? Is there 
any support for 64-bit architectures?

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[Stefan Reinauer]

* Blue Swirl  [060422 15:57]:
> I've been working on Sparc32/64 support for Qemu. Currently Qemu for Sparc32 
> uses Proll as a system boot rom, but it's not a very good starting point for 
> Sparc64. Basically, Linux expects a bit too much from the OpenFirmware 
> interface, like Forth support etc.
>
> I guess OpenBIOS would be a better choice. How complete do you think 
> OpenBIOS is, can it boot Linux for example on some architecture? Is there 
> any support for 64-bit architectures?

OpenBIOS boots Linux fine on x86, amd64 and ppc based systems.

It is 64bit clean, so using it for sparc64 is surely an option.

it will not automatically generate all of your device tree though, so
 you either need to generate a static one (easy and enough for qemu
 probably), or fix up the dynamic device tree generation (which is the
 preferred solution)

Stefan