[Xen-devel] removing event notification for HVM IRQ injection?

["Dong, Eddie" <eddie.dong@xxxxxxxxx>]

Steven:
        When looking at improving the HVM TPR acceleration, I noticed your previous patch (CSET:10974) replaced evtchn_set_pending in both hlt_timer_fn & vlapic_accept_irq with hvm_prod_vcpu. I am not sure for the purpose but at least one thing is missed after this patch: previous evtchn_set_pending may use physical IPI to interrupt target VP while hvm_prod_vcpu not. If the target VP is running, delivering guest IRQ  ( both hlt_timer_fn & vlapic_accept_irq ) to a running VP have to use physical IPI to interrupt the execution to inject IRQ, without this the logic may be wrong.

        Can u share more lights with us?
thx,eddie

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