> The problem is we still need to support PI with lowest priority delivery mode > even if guest does not configure irq affinity via /proc/irq/. Don't we?
Yes, but we can get the basic support working first. I and Feng talked on irc and agreed to start with a simple implementation. Then he can add support for vector hashing for all interrupts, both vt-d pi and normal LAPIC interrupts. Paolo
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