[PATCH v2 0/4] qemu: Add support for free-page-reporting

[Nico Pache]

I don't believe so, but David might have some more insight into that
question.

Once the feature is enabled the guest will report pages on its freelist to
the hypervisor, and the host/hypervisor will then release them.

I'm not exactly sure what information we can or would want to 'stat' out of
this process... A counter for number of pages returned?

Cheers,
Nico

On Tue, Oct 13, 2020, 12:47 PM Michal Privoznik <mprivozn at redhat.com> wrote:

> On 10/13/20 5:10 PM, Michal Privoznik wrote:
> > On 10/13/20 1:35 AM, Nico Pache wrote:
> >> gitlab issue: https://gitlab.com/libvirt/libvirt/-/issues/79
> >>
> >> The virtio-balloon device now has the ability to report free pages
> >> back to the hypervisor for reuse by other programs.
>
> Is this something that we might want to report? I mean, we have 'virsh
> dommemstat $dom' which under the hood calls:
>
>
> {"execute":"qom-get","arguments":{"path":"/machine/peripheral/balloon0","property":"guest-stats"},"id":"libvirt-400"}
>
> Michal
>
>
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