> Some of our more recent hardware requires that SMIs are routed through
> the IOAPIC, thus when we clear_IO_APIC() at boot time, we clear the BIOS
> initialized SMI pin. This basically clobbers the SMI, which can cause
> problems with console redirection as well keeping us from being able to
> transition into full ACPI mode.
That should be appropriately marked in the MP-table -- is it? I think
clear_IO_APIC() should use the MP-table to select pins marked as mp_INT
(and possibly mp_ExtINT) only. This way all special inputs are preserved.
Your solution looks like a good hack for working around a broken
MP-table, but then a big fat warning should be printed about a BIOS bug.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/