linux-kernel - Re: [PATCH] virtio-balloon spec: provide a version of the "silent deflate" feature that works

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Message-ID: <878vcfdahv.fsf@rustcorp.com.au>
Date:	Wed, 12 Sep 2012 15:54:28 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>, fes@...gle.com,
	aarcange@...hat.com, riel@...hat.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, mikew@...gle.com, yinghan@...gle.com,
	virtualization@...ts.linux-foundation.org, yvugenfi@...hat.com,
	vrozenfe@...hat.com
Subject: Re: [PATCH] virtio-balloon spec: provide a version of the "silent deflate" feature that works

"Michael S. Tsirkin" <mst@...hat.com> writes:
> We have several options:
> 1. No memory overcommit feature. This is always the case ATM!
> 2. Do not hot-plug assigned device.
> 3. Hot-unplug assigned device.
> 4. Some assigned devices can be able to handle memory errors
>    e.g. using ATS. Limit hotplug to these.

OK, let's leave it alone, and the first person to try to implement it in
a device can figure out how to fall back.

I replied on the other thread: I think a SILENT_DEFLATE option is
a future optimization.

Cheers,
Rusty.
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