[snipping some parts that Jan answered about already]

Il 26/10/2012 12:47, Benjamin Herrenschmidt ha scritto:
> Or do you mean the routing configured by the user ? IE. Affinity ? If
> yes, then that's indeed what the 64-bit per source is. Each interrupt
> source has some state including the configured target presentation
> controller (plus associated link info for distributed interrupts), a
> priority setting, and some internal state bits that need to be preserved
> in the case of migration.

Yes, that's pretty much the contents of the IOAPIC redirection table.
x86 has more stuff such as the polarity (low/high), masking, triggering
mode (edge/level), etc., but the main thing is the destination and vector.

Paolo
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