[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen
On Mon, 15 Mar 2010, Sheng Yang wrote: > Hi Stefano > > I've checked your patches. And one point puzzled me(I am looking into pv_ops > dom0 code): seems if it depends on PIRQ, it would still require to do > EOI(then > result in vmexit) for edge triggered interrupt? (through xen_pirq_chip->end). > And unmask is still a heavy work required vmexit?(seems it need twice vmexit, > even heavier than current HVM solution) > Only when pirq_needs_eoi(irq) returns true, and this happens when PIRQ_NEEDS_EOI is set. In my patch series I am making sure PIRQ_NEEDS_EOI is never set for any pirq on HVM. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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