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Re: [libvirt] [PATCH v2] qemu: Add option to enable/disable IOEventFD feature



On Thu, May 19, 2011 at 11:09:54PM +0100, Stefan Hajnoczi wrote:
> Please call it ioeventfd.  Also, it can always be toggled using the
> <qemu:commandline> tag if you don't want to expose it natively in
> domain XML.

A general comment on the XML ...

I think at least this should be discoverable through the libvirt
capabilities (see "virsh capabilities").  At the moment there is no
section there which relates to tunables of the hypervisor, nor any for
*disk* tunables of the HV.  Perhaps there should be both.

Is ioeventfd always a win?  If so, turn it on by default.

Rich.

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