linux-kernel - Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33

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Message-ID: <adazl58yuiy.fsf@roland-alpha.cisco.com>
Date:	Thu, 24 Dec 2009 12:41:25 -0800
From:	Roland Dreier <rdreier@...co.com>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	Anthony Liguori <anthony@...emonkey.ws>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Gregory Haskins <gregory.haskins@...il.com>,
	Avi Kivity <avi@...hat.com>, kvm@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org,
	"alacrityvm-devel\@lists.sourceforge.net" 
	<alacrityvm-devel@...ts.sourceforge.net>
Subject: Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33


 > > This is Linux virtualization, where _both_ the host and the guest source code 
 > > is fully known, and bugs (if any) can be found with a high degree of 

 > It may sound strange but Windows is very popular guest and last I
 > checked my HW there was no Windows sources there, but the answer to that
 > is to emulate HW as close as possible to real one and then closed source
 > guests will not have a reason to be upset.
 > 
 > > determinism. This is Linux where the players dont just vanish overnight, and 
 > > are expected to do a proper job.

And without even getting into closed/proprietary guests, virt is useful
for testing/developing/deploying many free OSes, eg FreeBSD, NetBSD,
OpenBSD, Hurd, <random research OS>, etc.  Not to mention just wanting a
stable [virtual] platform to run <old enterprise Linux distro> on.  So
having a virtual platform whose interface doesn't change very often or
very much has a lot of value at least in avoiding churn in guest OSes.

 - R.
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