linux-kernel - Re: On guest free page hinting and OOM

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Date:   Fri, 29 Mar 2019 12:09:28 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     Nitesh Narayan Lal <nitesh@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        pbonzini@...hat.com, lcapitulino@...hat.com, pagupta@...hat.com,
        wei.w.wang@...el.com, yang.zhang.wz@...il.com, riel@...riel.com,
        dodgen@...gle.com, konrad.wilk@...cle.com, dhildenb@...hat.com,
        aarcange@...hat.com, alexander.duyck@...il.com
Subject: Re: On guest free page hinting and OOM

On Fri, Mar 29, 2019 at 04:37:46PM +0100, David Hildenbrand wrote:
> Just so we understand each other. What you mean with "appended to guest
> memory" is "append to the guest memory size", not actually "append
> memory via virtio-balloon", like adding memory regions and stuff.
> 
> Instead of "-m 4G" you would do "-m 5G -device virtio-balloon,hint_size=1G".

Right.