Re: [ACPI] IBM T41 + ACPI + APIC

[Nathan B. <nb...@op...>]

Grover, Andrew wrote:

> You need an IOAPIC. The local APIC is basically just the part of the CPU
> that receives messages from the IOAPIC, if present.

By the way, it is a bad idea to use front-side-bus interrupt delivery on 
some (all?) Intel mobile processors/chipsets. This prevents entering C3, 
if I remember correctly. The real details are in the i850-M databook...

Does turning on IOAPIC+local APIC enable FSB-interrupt mode in Linux? 
What about also turning on message-signalled interrupts? Seems we use 
the local-apic instead of the IO(x)APIC for MSI.