From: Andi Kleen <ak@suse.de>
To: Patrick Finnegan <pat@purdueriots.com>
Cc: linux-kernel@vger.kernel.org, jdike@karaya.com
Subject: Re: uml-patch-2.5.49-1
Date: 26 Nov 2002 08:08:12 +0100 [thread overview]
Message-ID: <p73r8d8u7tv.fsf@oldwotan.suse.de> (raw)
In-Reply-To: Patrick Finnegan's message of "26 Nov 2002 08:03:06 +0100"
Patrick Finnegan <pat@purdueriots.com> writes:
> That's just one example... the idea is that you want maximal separation
> between the guest OS's apps and the host OS. Sort of like "VM" on IBM's
> series of mainframe architecures. Of course, that's virtualization done
> in hardware not in software, but the principles are the same; you want a
> maximal amount of separation between the layers.
As an "idea" it doesn't make much sense for me. An mm does tie up
considerable amounts of unswappable host memory (page tables, mm_struct),
which could be used for a DoS without too many problems. The separation
you are asking for just isn't there with UML. The same applies to other
resources used by UML.
-Andi
next parent reply other threads:[~2002-11-26 7:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20021126061021.GA17959@wotan.suse.de.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.44.0211260159440.7540-100000@ibm-ps850.purdueriots.com.suse.lists.linux.kernel>
2002-11-26 7:08 ` Andi Kleen [this message]
[not found] <200211260517.AAA05038@ccure.karaya.com.suse.lists.linux.kernel>
2002-11-26 5:57 ` uml-patch-2.5.49-1 Andi Kleen
2002-11-26 6:07 ` uml-patch-2.5.49-1 Patrick Finnegan
2002-11-26 6:10 ` uml-patch-2.5.49-1 Andi Kleen
2002-11-26 7:02 ` uml-patch-2.5.49-1 Patrick Finnegan
2002-11-26 16:45 ` uml-patch-2.5.49-1 Rik van Riel
2002-11-26 18:29 ` uml-patch-2.5.49-1 Jeff Dike
2002-11-26 19:37 ` uml-patch-2.5.49-1 Andreas Dilger
2002-11-26 21:07 ` uml-patch-2.5.49-1 Jeff Dike
2002-11-26 5:17 uml-patch-2.5.49-1 Jeff Dike
2002-11-26 14:14 ` uml-patch-2.5.49-1 jlnance
2002-11-26 18:33 ` uml-patch-2.5.49-1 Jeff Dike
2002-11-27 2:29 ` uml-patch-2.5.49-1 H. Peter Anvin
2002-11-27 4:06 ` uml-patch-2.5.49-1 Jeff Dike
2002-11-27 4:30 ` uml-patch-2.5.49-1 H. Peter Anvin
2002-11-27 5:08 ` uml-patch-2.5.49-1 Jeff Dike
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