From: Nuno Silva <nuno.silva@vgertech.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: Announce: ndiswrapper
Date: Fri, 21 Nov 2003 07:47:26 +0000 [thread overview]
Message-ID: <3FBDC30E.2090200@vgertech.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0311202316500.13351-100000@home.osdl.org>
Linus Torvalds wrote:
[...]
>
>
> That may be the politically sensitive (except to Intel) correct answer,
> but in the end I suspect that the _real_ answer is that ring 1/2 are just
> fundamentally useless, and it has nothing to do with x86 implementation
> semantics or anything else.
>
(A bit OT, but...)
Hi Linus!
The good people at Cambridge made a (very nice) VMM that exploits
ring0/1/3 to let one machine run various kernels independently (the
kernels need to be ported to the xen arch).
Xen itself executes in ring0 and the "guest" operating systems execute
in ring1. User code runs in ring3, as usual. They have linux running
under xen ;)
The project's home page is at
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/ and one paper describing
the whole thing is here:
http://www.cl.cam.ac.uk/netos/papers/2003-xensosp.pdf
Regards,
Nuno Silva
next prev parent reply other threads:[~2003-11-21 7:46 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-20 3:11 Announce: ndiswrapper Jean Tourrilhes
2003-11-20 3:26 ` Jeff Garzik
2003-11-20 3:34 ` Jean Tourrilhes
2003-11-21 12:05 ` Vojtech Pavlik
2003-11-21 17:25 ` Jean Tourrilhes
2003-11-21 17:30 ` Jeff Garzik
2003-11-21 17:43 ` Vojtech Pavlik
2003-11-21 17:48 ` Jean Tourrilhes
2003-11-21 17:50 ` Vojtech Pavlik
2003-11-20 4:00 ` William Lee Irwin III
2003-11-20 4:16 ` Nick Piggin
2003-11-20 4:35 ` Neil Brown
2003-11-20 4:49 ` Nick Piggin
2003-11-20 4:57 ` Randy.Dunlap
2003-11-20 5:05 ` Nick Piggin
2003-11-20 6:50 ` Benjamin Herrenschmidt
2003-11-20 5:27 ` William Lee Irwin III
2003-11-20 5:36 ` Jeff Garzik
2003-11-20 5:36 ` Nick Piggin
2003-11-20 4:38 ` William Lee Irwin III
2003-11-20 4:59 ` Nick Piggin
2003-11-20 5:12 ` William Lee Irwin III
2003-11-20 5:27 ` Nick Piggin
2003-11-24 15:40 ` Rik van Riel
2003-11-20 12:41 ` Diego Calleja García
2003-11-20 13:04 ` Christoph Hellwig
2003-11-20 20:24 ` Pasi Kärkkäinen
2003-11-20 5:11 ` Valdis.Kletnieks
2003-11-20 9:56 ` Ingo Oeser
2003-11-20 13:15 ` Ralph Metzler
2003-11-20 6:52 ` Matt Mackall
2003-11-20 7:40 ` Nick Piggin
2003-11-20 10:13 ` Geert Uytterhoeven
2003-11-20 10:17 ` William Lee Irwin III
2003-11-20 22:47 ` Bill Davidsen
2003-11-20 22:59 ` William Lee Irwin III
2003-11-20 23:26 ` Oliver Hunt
2003-11-20 23:32 ` Bill Davidsen
2003-11-20 13:19 ` Gene Heskett
2003-11-20 23:15 ` Bill Davidsen
2003-11-20 5:25 ` Jeff Garzik
2003-11-20 5:26 ` William Lee Irwin III
2003-11-20 6:54 ` Benjamin Herrenschmidt
2003-11-20 17:27 ` Jean Tourrilhes
2003-11-20 23:57 ` Benjamin Herrenschmidt
2003-11-21 0:03 ` Jean Tourrilhes
2003-11-20 16:47 ` Jason Lunz
2003-11-20 17:36 ` Jeff Garzik
2003-11-20 17:24 ` Jean Tourrilhes
2003-11-20 17:48 ` Richard B. Johnson
2003-11-20 18:03 ` William Lee Irwin III
2003-11-20 23:01 ` Bill Davidsen
2003-11-21 5:48 ` H. Peter Anvin
2003-11-21 7:26 ` Linus Torvalds
2003-11-21 7:37 ` H. Peter Anvin
2003-11-21 7:47 ` Nuno Silva [this message]
2003-11-21 7:51 ` Linus Torvalds
2003-11-20 10:55 ` Pavel Machek
2003-11-20 17:22 ` Jean Tourrilhes
2003-11-20 23:04 ` Bill Davidsen
2003-11-20 23:45 ` Jean Tourrilhes
2003-11-21 17:08 ` Bill Davidsen
2003-11-23 23:13 ` Jan Rychter
[not found] <TNwv.6Lz.7@gated-at.bofh.it>
[not found] ` <TPHV.1vf.1@gated-at.bofh.it>
[not found] ` <TQXu.420.11@gated-at.bofh.it>
2003-11-21 2:53 ` Andrew Miklas
2003-11-21 10:33 ` Maciej Zenczykowski
-- strict thread matches above, loose matches on Subject: below --
2003-11-20 23:53 Mudama, Eric
2003-11-21 0:00 ` Jean Tourrilhes
2003-11-21 1:01 ` Bob McElrath
2003-11-24 17:42 ` Pavel Machek
2003-11-21 7:58 ` Jan De Luyck
2003-11-21 8:59 ` Jamie Lokier
2003-11-18 11:02 Pontus Fuchs
2003-11-18 12:51 ` Christian Axelsson
2003-11-18 13:26 ` Maciej Zenczykowski
2003-11-18 13:37 ` Christian Axelsson
2003-11-18 13:49 ` Richard B. Johnson
2003-11-18 14:02 ` Arjan van de Ven
2003-11-18 13:59 ` Jeff Garzik
2003-11-18 14:14 ` Maciej Zenczykowski
2003-11-18 14:49 ` Jan-Benedict Glaw
2003-11-18 15:31 ` Maciej Zenczykowski
2003-11-18 14:19 ` Richard B. Johnson
2003-11-18 14:31 ` Davide Libenzi
2003-11-18 22:22 ` Pavel Machek
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