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From: Philip R Auld <pauld@egenera.com>
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
Cc: Andrew Morton <akpm@osdl.org>, Andi Kleen <ak@suse.de>,
	alan@lxorguk.ukuu.org.uk, riel@redhat.com,
	linux-kernel@vger.kernel.org, Steven.Hand@cl.cam.ac.uk,
	Christian.Limpach@cl.cam.ac.uk, Keir.Fraser@cl.cam.ac.uk
Subject: Re: arch/xen is a bad idea
Date: Thu, 16 Dec 2004 17:04:34 -0500	[thread overview]
Message-ID: <20041216220434.GC16621@vienna.egenera.com> (raw)
In-Reply-To: <E1Cf2k0-00069l-00@mta1.cl.cam.ac.uk>

Rumor has it that on Thu, Dec 16, 2004 at 09:00:52PM +0000 Ian Pratt said:
>  
> I think we'd then have to make a decision as to whether merging
> i386 and xen/i386 is feasible. Further, we'd have to make a
> decision as to whether what is really wanted is a single kernel
> that's able to boot-time switch between native i386 and xen,
> rather than just having a single source base. The two options
> would probably result in rather different implementations.
> 

The boot-time switch seems to be the ideal. This would allow 
enterprise Linux vendors to support using Xen w/o having to
deal with a whole archicture release (including install kernel 
etc.). One of the (really strong IMO) arguments for full 
virtualization methods is beinag able to run stock OSes. 
At least for Linux guests, a Xen merge with the boot-time 
option would remove that argument. 

Of course, the resultant kernel changes would need to have no 
measurable impact on native i386... and be possible...


Cheers,

Phil

  parent reply	other threads:[~2004-12-16 22:33 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <41BF1983.mailP9C1B91GB@suse.de.suse.lists.linux.kernel>
2004-12-14 18:59 ` arch/xen is a bad idea Andi Kleen
2004-12-14 19:35   ` Antonio Vargas
2004-12-14 22:40   ` Ian Pratt
2004-12-15  4:49     ` Andi Kleen
2004-12-16  0:09       ` Alan Cox
2004-12-16  4:01         ` Andi Kleen
2004-12-16 12:54           ` Alan Cox
2004-12-16 14:09             ` Andi Kleen
2004-12-16 13:19               ` Alan Cox
2004-12-16 14:28                 ` Andi Kleen
2004-12-16 20:37                   ` Ian Pratt
2004-12-16 18:26               ` Andrew Morton
2004-12-16 18:57                 ` Alan Cox
2004-12-16 21:00                 ` Ian Pratt
2004-12-16 21:03                   ` Andrew Morton
2004-12-16 21:36                     ` Ian Pratt
2004-12-16 21:39                       ` Rik van Riel
2004-12-17  6:04                       ` Andi Kleen
2004-12-17  8:26                         ` Ian Pratt
2004-12-16 22:04                   ` Philip R Auld [this message]
2004-12-16 23:08                     ` Rik van Riel
2004-12-17  2:07                       ` Philip R Auld
2004-12-17  6:03                   ` Andi Kleen
2004-12-15 11:49     ` Pavel Machek
2004-12-16  1:14       ` Ian Pratt
2004-12-16  1:26         ` Pavel Machek
2004-12-16 14:21         ` Andi Kleen
2004-12-16 22:45       ` Bill Davidsen
2004-12-16 23:09         ` Rik van Riel
2004-12-20 15:08         ` arch/xen clue? Dorn Hetzel
2004-12-20 15:15           ` Ian Pratt
2004-12-20 15:23           ` Anton Altaparmakov
2004-12-20 15:34           ` Måns Rullgård
2004-12-15 11:51     ` arch/xen is a bad idea Pavel Machek
2004-12-17 16:05   ` William Lee Irwin III
2004-12-18 17:57     ` Ian Pratt
2005-02-25 11:43   ` Andrew Morton
2005-02-25 11:55     ` kernel 2.6.8-24.11-smp errors Marcel Smeets
2005-02-25 12:07 arch/xen is a bad idea Ian Pratt
2005-02-25 15:01 ` Andi Kleen
2005-02-25 22:37 ` Andrew Morton
2005-02-26 20:41 Ian Pratt

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