Is it possible to get the kernel to recognise and utilise the
chipset's IO-APIC if the BIOS has no MP table but does list the
IO-APIC in the ACPI table(s)?
If it's possible, is it also meaningful to do this on UP?
/Mikael
Mikael Pettersson wrote:
>
> Is it possible to get the kernel to recognise and utilise the
> chipset's IO-APIC if the BIOS has no MP table but does list the
> IO-APIC in the ACPI table(s)?
the mini acpi does this or at least can do it; right now it's not
compiled in for UP though
Mikael Pettersson <[email protected]> writes:
> Is it possible to get the kernel to recognise and utilise the
> chipset's IO-APIC if the BIOS has no MP table but does list the
> IO-APIC in the ACPI table(s)?
The new Intel ACPI implementation now merged into 2.5 should support
this. Of course it may still not work on your particular BIOS.
> If it's possible, is it also meaningful to do this on UP?
Using the IO-APIC makes a lot of sense, because it is a much more
efficient interface to the interrupt controller.
-Andi