Re: Cleanups for APIC

[Ingo Molnar]

* Maciej W. Rozycki <macro@xxxxxxxxxxxxx> wrote:

>  The I/O APIC need not be hooked to PCI ;-) -- I'm not sure about the
> i82093AA, but that's definitely true for the i82489DX.  The call to
> io_apic_sync() is needed for masking to make sure interrupts won't be
> dispatched after returning from the call -- this is not needed for
> unmasking as a delay here is harmless.

well, an APIC message could be on the way to the CPU even with this
synchronization. Does it matter whether it's a newly dispatched one due
to POST delays or an in-fly one due to APIC bus delays?

	Ingo
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