linux-kernel - Re: [PATCH 2/2] xen: enable BALLOON_MEMORY

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Message-ID: <24188.58071.444694.257081@mariner.uk.xensource.com>
Date:   Thu, 26 Mar 2020 17:13:59 +0000
From:   Ian Jackson <ian.jackson@...rix.com>
To:     Roger Pau Monne <roger.pau@...rix.com>
CC:     Jürgen Groß <jgross@...e.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Boris Ostrovsky" <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>
Subject: Re: [PATCH 2/2] xen: enable BALLOON_MEMORY_HOTPLUG by default

Roger Pau Monne writes ("Re: [PATCH 2/2] xen: enable BALLOON_MEMORY_HOTPLUG by default"):
> I would rather have it always on if possible, as gntdev or privcmd
> (when used to map foreign pages from user-space) will also require it,
> and they are not gated on XEN_BACKEND AFAICT.

Currently there seem to be problems with this:

http://logs.test-lab.xenproject.org/osstest/logs/149014/test-amd64-amd64-dom0pvh-xl-intel/info.html

For now I have rolled back the change in osstest to enable this option
explicitly.

Ian.