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Subject: Re: [Qemu-devel] Re: [PATCH] whitelist host virtio networking
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From: Dustin Kirkland <kirkland@canonical.com>
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Date: Mon, 02 Nov 2009 13:25:55 -0600
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Mark McLoughlin <markmc@redhat.com>, Scott Tsai <scottt.tw@gmail.com>, kvm <kvm@vger.kernel.org>, Rusty Russell <rusty@rustcorp.com.au>, qemu-devel <qemu-devel@nongnu.org>, jdstrand@canonical.com, Marc Deslauriers <marc.deslauriers@canonical.com>, kees.cook@canonical.com


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On Mon, 2009-11-02 at 12:55 -0600, Anthony Liguori wrote:
> They can exit qemu via an ACPI shutdown.  I don't see the difference.

An ACPI shutdown is triggered by an authenticated user inside of the
guest.

The present exit is triggered by any other anonymous user on the
network, with the ability to send a lot of packets very quickly to the
VM guest.  The guest isn't able to handle this properly (and rightly
that guest's kernel should be fixed).  But I do see a difference.

:-Dustin

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