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Date: Mon, 30 May 2011 17:38:46 +0300
From: "Nadav Har'El" <nyh@math.technion.ac.il>
Message-ID: <20110530143846.GA2957@fermat.math.technion.ac.il>
References: <4DDAD5CF.5050805@redhat.com> <4DE0B4B1.1000407@web.de>
	<20110530081847.GC27062@amd.com> <4DE3A3EC.80201@siemens.com>
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Subject: Re: [Qemu-devel] drop -enable-nesting (was: [PATCH 3/7] cpu model
	bug fixes and definition corrections...)
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To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: john cooper <john.cooper@redhat.com>, "Roedel,
	Joerg" <Joerg.Roedel@amd.com>, Anthony Liguori <aliguori@us.ibm.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, kvm <kvm@vger.kernel.org>

On Mon, May 30, 2011, Jan Kiszka wrote about "drop -enable-nesting (was: [PATCH 3/7] cpu model bug fixes and definition corrections...)":
> On 2011-05-30 10:18, Roedel, Joerg wrote:
> > On Sat, May 28, 2011 at 04:39:13AM -0400, Jan Kiszka wrote:
> > 
> >> Jörg, how to deal with -enable-nesting in qemu-kvm to align behavior
> >> with upstream?
> > 
> > My personal preference is to just remove it. In upstream-qemu it is
> > enabled/disabled by +/-svm. -enable-nesting is just a historic thing
> > which can be wiped out.

"-enable-nesting" could remain as a synonym for enabling either VMX or SVM
in the guest, depending on what was available in the host (because KVM now
supports both nested SVM and nested VMX, but not SVM-on-VMX or vice versa).

-- 
Nadav Har'El                        |       Monday, May 30 2011, 26 Iyyar 5771
nyh@math.technion.ac.il             |-----------------------------------------
Phone +972-523-790466, ICQ 13349191 |Software is like sex, it is better when
http://nadav.harel.org.il           |it's free -- Linus Torvalds