Re: [PATCH v3 0/2] kvm: level irqfd and new eoifd

[Avi Kivity]

On 07/03/2012 10:21 PM, Alex Williamson wrote:
> Here's the latest iteration of adding an interface to assert and
> de-assert level interrupts from external drivers like vfio.  These
> apply on top of the previous argument cleanup, documentation, and
> sanitization patches for irqfd.  It would be great to get this queued
> in next for linux 3.6.
> 
> I believe I've addressed all the previous comments, including fixing
> the locking problems in eoifd.  I've run this with lockdep adding
> and removing level irqfd/eoifd pairs without any problems.  Please
> let me know if there are any further comments.  Thanks,

Is there any performance justification for level irqfd?  Don't all
new/high bandwidth devices support msi, and this is just a legacy path?

eoifd does add new functionality (which parallels the existing ack
notifier usage in kvm device assignment); it's not just an optimization.

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


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