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Date:   Tue, 15 Jun 2021 11:21:38 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     "Enrico Weigelt, metux IT consult" <lkml@metux.net>
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Subject: Re: [PATCH v9 0/5] KVM statistics data fd-based binary interface
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 <b86aa6df-5fd7-d705-1688-4d325df6f7d9@metux.net>
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On Tue, Jun 15, 2021 at 10:37:36AM +0200, Enrico Weigelt, metux IT consult wrote:
> Why not putting this into sysfs ?

Because sysfs is "one value per file".

> I see two options:
> 
> a) if it's really kvm-specific (and no chance of using the same
>    interface for other hypervisors), we could put it under the
>    kvm device (/sys/class/misc/kvm).

Again, that is NOT what sysfs is for.

> b) have a generic VMM stats interface that theroretically could work
>    with any hypervisor.

What other hypervisor matters?

greg k-h