linux-kernel - Re: [PATCH] Move KVM, paravirt, lguest, VMI and Xen under arch-level Virtualization option

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Date:	Thu, 19 Jul 2007 23:10:54 -0700
From:	Zachary Amsden <zach@...are.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
CC:	Avi Kivity <avi@...ranet.com>,
	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andi Kleen <ak@....de>, Jeremy Fitzhardinge <jeremy@...p.org>,
	virtualization <virtualization@...ts.linux-foundation.org>,
	Jeff Dike <jdike@...toit.com>
Subject: Re: [PATCH] Move KVM, paravirt, lguest, VMI and Xen under	arch-level
 Virtualization option

Rusty Russell wrote:
>> Otherwise we end up with $NARCH copies of that Kconfig, each slightly
>> different.  The top-level entry can be made to depend on the archs that
>> actually have some virt capability, so as not to show empty an menu.
>>     
>
> I dislike the duplication, too, but 
>
> 1) it's a CPU capability, and that's where it belongs in the menu.
> 2) And as you can see from the difference between the x86_64 and i386
> help text, there are real platform differences (and not mentioning
> what's under the menu would be kinda cheating).
> 3) Virtualization doesn't even make sense as an option for some
> platforms where it's always on.
>   

I'm rather indifferent on the matter, but I think a virtualization menu 
under UML would be very confusing.

Zach
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