> Especially for accessing the real time clock that has a well
> defined hardware interface going through efi an additional
> software emulation layer looks like asking for trouble.

I agree it's pointless for the hardware clock, but EFI 
also offers services to write some data to the CMOS RAM
which could be very useful to save oops data over reboot.
I don't think this can be done safely otherwise 
without BIOS cooperation.

-Andi
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