[OpenBIOS] Sun OBP bugs in 1.0RC1

Blue Swirl blueswir1 at hotmail.com
Sat Mar 10 18:56:36 CET 2007


>Here's a patch file based on the latest snapshot that addresses
>everything up through #9, excluding #5 (which requires a tweak to
>qemu).  It includes the patch for #2 written by Blue Swirl, which
>copies the entire contents of the ROM into RAM.

Thank you for your work, it would be great to get more OSes running on 
Qemu/OpenBIOS.

Just one comment: On my Sun4m machine (SS-5) the OBP properties for 
interrupt and counter reg nodes are as follows:

$ cat obio/interrupt\@0\,e00000/reg
00000000.00e00000.00000010.00000000.00e10000.00000010
$ cat obio/counter\@0\,d00000/reg
00000000.00d00000.00000010.00000000.00d10000.00000010

Your patch deviates from this. If you want to emulate a SS-10, it may be 
better to add it as a new sub-machine type to Qemu and OpenBIOS. I don't 
know how much SS-5 and SS-10 differ. For example, what is the MMU on SS-10, 
is it also Swift (SRMMU)?

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