|   xen-users
[Xen-users] Re: Xen is a feature 
| To: | George Dunlap <george.dunlap@xxxxxxxxxxxxx> |  
| Subject: | [Xen-users] Re: Xen is a feature |  
| From: | "Chris Friesen" <cfriesen@xxxxxxxxxx> |  
| Date: | Thu, 04 Jun 2009 09:31:56 -0600 |  
| Cc: | "jeremy@xxxxxxxx" <jeremy@xxxxxxxx>, Frans Pop <elendil@xxxxxxxxx>,	Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>,	"jens.axboe@xxxxxxxxxx" <jens.axboe@xxxxxxxxxx>,	"tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>,	"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>,	"kurt.hackel@xxxxxxxxxx" <kurt.hackel@xxxxxxxxxx>,	"x86@xxxxxxxxxx" <x86@xxxxxxxxxx>,	Stephen Spector <stephen.spector@xxxxxxxxxx>,	"avi@xxxxxxxxxx" <avi@xxxxxxxxxx>, "mingo@xxxxxxx" <mingo@xxxxxxx>,	Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>,	"wimcoekaerts@xxxxxxxxxxxx" <wimcoekaerts@xxxxxxxxxxxx>,	Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, ksrinivasan <ksrinivasan@xxxxxxxxxx>,	Bill Davidsen <davidsen@xxxxxxx>,	"xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>,	"gregkh@xxxxxxx" <gregkh@xxxxxxx>,	"linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>,	"EAnderson@xxxxxxxxxx" <EAnderson@xxxxxxxxxx>,	"torvalds@xxxxxxxxxxxxxxxxxxxx" <torvalds@xxxxxxxxxxxxxxxxxxxx>,	"davem@xxxxxxxxxxxxx" <davem@xxxxxxxxxxxxx> |  
| Delivery-date: | Fri, 05 Jun 2009 04:54:51 -0700 |  
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| George Dunlap wrote:
> Frans Pop wrote:
> 
>>! The kernel policy always was and still is to accept only those
>>! features which have a technical benefit **to the code base**.
> If (hypothetically) we merged Xen into Linux, then (people are 
> suggesting) the coolness of Xen would actually contribute to the 
> coolness of Linux ("add technical benefit to the code base").  People 
> would feel like working on the interface between linux-xen and the rest 
> of linux would be making their own piece of software, Linux, work 
> better, rather than feeling like they have to work with some foreign 
> project that doesn't make their code any cooler.
I suspect that there is an element of this.
There is also the factor that if Xen was merged into linux, we would
then be able to work towards a sane(r) virtualization layer that would
be useful for KVM, Xen, and possibly others.  This provides a technical
benefit to the code base by introducing a more logical organization
rather than having ad-hoc changes sprinkled all over.
Chris
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