Re: [PATCH v2 3/4] KVM: add io services to xinterface

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On 10/02/2009 10:19 PM, Gregory Haskins wrote:
We want to add a more efficient way to get PIO signals out of the guest,
so we add an "xioevent" interface.  This allows a client to register
for notifications when a specific MMIO/PIO address is touched by
the guest.  This is an alternative interface to ioeventfd, which is
performance limited by io-bus scaling and eventfd wait-queue based
notification mechanism.  This also has the advantage of retaining
the full PIO data payload and passing it to the recipient.


Can you detail the problems with io-bus scaling and eventfd wait-queues? Maybe we should fix these instead.

--
error compiling committee.c: too many arguments to function

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