Messages in this thread | | | Date | Sun, 03 Jun 2012 11:42:01 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH] KVM: Use IRQF_ONESHOT for assigned device MSI interrupts |
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On 06/01/2012 09:26 PM, Jan Kiszka wrote: > >> you suggesting we need a request_edge_threaded_only_irq() API? Thanks, > > I'm just wondering if that restriction for threaded IRQs is really > necessary for all use cases we have. Threaded MSIs do not appear to me > like have to be handled that conservatively, but maybe I'm missing some > detail. >
btw, I'm hoping we can unthread assigned MSIs. If the delivery is unicast, we can precalculate everything and all the handler has to do is set the IRR, KVM_REQ_EVENT, and kick the vcpu. All of these can be done from interrupt context with just RCU locking.
-- error compiling committee.c: too many arguments to function
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