Paolo Bonzini wrote on 2014-12-23: >> 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.
Agree. Obviously, current PI has some limitations to achieve highest performance. We can start with a simple implementation but must ensure we don't change hardware's behavior(From guest's point). Feng's current implementation or use the way I suggested are both ok since both of them cannot solve the problem well. > > Paolo > Best regards, Yang N�����r��y����b�X��ǧv�^�){.n�+����h����ܨ}���Ơz�&j:+v�������zZ+��+zf���h���~����i���z��w���?�����&�)ߢf