From: Gerd Hoffmann <kraxel@suse.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: virtualization <virtualization@lists.osdl.org>,
Jan Beulich <jbeulich@novell.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org, Roland McGrath <roland@redhat.com>
Subject: Re: Xen & VMI?
Date: Tue, 06 Mar 2007 11:15:05 +0100 [thread overview]
Message-ID: <45ED3F29.6000705@suse.de> (raw)
In-Reply-To: <20070306093436.GA30239@elte.hu>
Ingo Molnar wrote:
> * Gerd Hoffmann <kraxel@suse.de> wrote:
>
>> Oh, and btw: What was the reason why kvm paravirtualization doesn't
>> use the vmi interface?
>
> cleanliness and performance: KVM doesnt need any artificial indirection.
Xen doesn't need it either.
> IMO the GPL-ed ROM portion of VMI was a bad idea to begin with.
So why do you want xen use vmi then?
> well, the VMI patches got into Linux with the claim that it's also
> useful for Xen. So that claim was ... not actually true?
As mentioned there was a proof-of-concept VMI ROM done by vmware. As
far I know it translated the VMI ROM interface calls into xen hypercalls
somehow, Zach probably has more details.
So in the end you would still have two different hypervisor ABI's, the
VMI ROM just hides that.
cheers,
Gerd
--
Gerd Hoffmann <kraxel@suse.de>
next prev parent reply other threads:[~2007-03-06 10:15 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070305120631.GA14105@elte.hu>
2007-03-05 13:28 ` [patch] paravirt: VDSO page is essential Rusty Russell
2007-03-05 13:38 ` Ingo Molnar
2007-03-05 14:34 ` Andi Kleen
2007-03-05 13:48 ` Ingo Molnar
2007-03-05 20:11 ` Zachary Amsden
2007-03-05 20:16 ` Andi Kleen
2007-03-05 20:33 ` Zachary Amsden
2007-03-05 20:19 ` Ingo Molnar
2007-03-05 20:42 ` Zachary Amsden
2007-03-06 0:57 ` Rusty Russell
2007-03-06 1:03 ` Zachary Amsden
2007-03-06 1:11 ` Rusty Russell
2007-03-06 1:14 ` Jeremy Fitzhardinge
2007-03-06 1:51 ` Zachary Amsden
2007-03-06 1:53 ` Jeremy Fitzhardinge
2007-03-06 8:19 ` Xen & VMI? Ingo Molnar
2007-03-06 8:37 ` Gerd Hoffmann
2007-03-06 8:48 ` Zachary Amsden
2007-03-06 8:52 ` Ingo Molnar
2007-03-06 9:03 ` Zachary Amsden
2007-03-06 9:10 ` Ingo Molnar
2007-03-06 9:15 ` Gerd Hoffmann
2007-03-06 9:34 ` Ingo Molnar
2007-03-06 10:15 ` Gerd Hoffmann [this message]
2007-03-06 10:26 ` Ingo Molnar
2007-03-06 11:04 ` Gerd Hoffmann
2007-03-06 11:59 ` Ingo Molnar
2007-03-06 12:34 ` Gerd Hoffmann
2007-03-06 15:03 ` Anthony Liguori
2007-03-06 17:17 ` Nakajima, Jun
2007-03-06 17:32 ` Anthony Liguori
2007-03-06 20:37 ` Ingo Molnar
2007-03-06 21:02 ` Jeremy Fitzhardinge
2007-03-06 21:11 ` Ingo Molnar
2007-03-06 21:13 ` Jeremy Fitzhardinge
2007-03-06 21:20 ` Ingo Molnar
2007-03-06 21:46 ` Jeremy Fitzhardinge
2007-03-06 21:35 ` Nakajima, Jun
2007-03-07 0:44 ` Rusty Russell
2007-03-07 0:54 ` Anthony Liguori
2007-03-07 3:06 ` Zachary Amsden
2007-03-07 8:15 ` Ingo Molnar
2007-03-07 9:17 ` Zachary Amsden
2007-03-07 11:15 ` Thomas Gleixner
2007-03-07 19:14 ` Dan Hecht
2007-03-06 16:27 ` Jeremy Fitzhardinge
2007-03-06 17:11 ` Ingo Molnar
2007-03-06 17:33 ` Jeremy Fitzhardinge
2007-03-07 2:16 ` Zachary Amsden
2007-03-06 9:55 ` Avi Kivity
2007-03-06 10:23 ` Gerd Hoffmann
2007-03-06 10:31 ` Ingo Molnar
2007-03-06 19:46 ` Chris Wright
2007-03-06 20:30 ` Ingo Molnar
2007-03-06 20:53 ` Chris Wright
2007-03-06 21:03 ` Ingo Molnar
2007-03-06 21:28 ` Chris Wright
2007-03-07 2:35 ` Zachary Amsden
2007-03-06 9:07 ` Jeremy Fitzhardinge
2007-03-06 9:26 ` Ingo Molnar
2007-03-06 16:42 ` Jeremy Fitzhardinge
2007-03-06 17:18 ` Ingo Molnar
2007-03-06 18:04 ` Jeremy Fitzhardinge
2007-03-06 7:35 ` [patch] paravirt: VDSO page is essential Ingo Molnar
2007-03-06 7:42 ` Zachary Amsden
2007-03-06 7:50 ` Ingo Molnar
2007-03-06 18:48 ` Jeremy Fitzhardinge
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