* Sven Luther [off-list ref] [030925 07:39]:

On Wed, Sep 24, 2003 at 11:12:57AM -0700, Jon Smirl wrote:

quoted

Is the 'Mac' card being used on a x86 machine?
I thought the ROM code was compiled out on non-X86 machines.

Notice that not all powerpc boxes are in this case. The pegasos at least
includes an x86 emulator in the OF which runs the cards bios. I know
that the amigaone does the same. So testing for powerpc may well not be
enough for detecting OF cards.

Whether it's an Open Firmware card or not can be read from the PCI
headers stored in the ROM. Check the romheaders utility from OpenBIOS
CVS ( http://www.openbios.org/ )

Look at the code here:
http://cvs.openbios.org/cgi-dom/viewcvs.cgi/utils/romheaders.c?rev=1.2&content-type=text/vnd.viewcvs-markup

The program prints whether the rom is OpenFirmware, x86 or HP PA-Risc.
Note that graphics cards can theoretically contain ROM images for both
x86 and OF in one chip.

  Stefan
-- 
Architecture Team
    SuSE Linux AG


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