bios.h question

Francois Tigeot ftigeot at
Tue Sep 14 23:35:35 PDT 2004

On Tue, Sep 14, 2004 at 03:43:13PM -0700, Peter Wemm wrote:
> On Tuesday 14 September 2004 08:04 am, Francois Tigeot wrote:
> > I'm running 5.3-BETA4 and I can't find <machine/pc/bios.h> even
> > though bios(9) exists.
> > It seems bios.h is only present on the i386 and alpha architectures.
> >
> > Is this normal on amd64 ? If yes, I would appreciate if someone could
> > point me to an alternative to bios_sigsearch()
> We dont even have bios_sigsearch() - all the consumers in the kernel 
> were related to vm86()/bios16()/bios32() calls, which are impossible in 
> our kernel.

This puzzles me, as the functions seem to be present on alpha.

> What do you need it for?  It might be ok to revive a subset of it, but 
> it would be useful to know what that file is being used for first, so 
> we know which subsets are needed.

I am experimenting with Bruno Ducrot's powernow_k7 and need to read some
tables in BIOS memory area.

I will try to see if there is a way to do the same thing via acpi

Francois Tigeot

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