Re: Running KVM inside a KVM guest.

[jd <jdsw2002@yahoo.com>]

Hi Alex
   Hope your tooth op went smoothly.
   Did u get a chance to put up your new version of the nested KVM patch ?
   I am on KVM-70... can u tell me in bit more details on how I can go about getting your patches and Joerg's patch applied.
  -- What versions of KVM are these patches expected to work with ? 
  -- Any sequencing or they are non-overlapping.
  -- Do I need to upgrade to some later version of KVM ?
  -- Are these patches already part of KVM-78 ?

Thanks
/Jd


--- On Tue, 10/14/08, Alexander Graf <agraf@suse.de> wrote:

> From: Alexander Graf <agraf@suse.de>
> Subject: Re: Running KVM inside a KVM guest.
> To: jdsw2002@yahoo.com
> Cc: "KVM List" <kvm@vger.kernel.org>
> Date: Tuesday, October 14, 2008, 12:58 AM
> Hi jd,
> 
> On 14.10.2008, at 01:34, jd wrote:
> 
> > Hi
> >  Is it possible to install and use KVM in a guest VM ?
> I need this for testing so, a reasonable performance is
> fine.
> 
> Yes, with AMD CPUs and my "nested KVM" patchset.
> I am planning to improve it this week (if my tooth operation
> goes well :-(), so we can finally get it upstream :-). I
> sent v3 about 3 weeks ago, just search for it in the
> archives.
> You also need to take Joerg's patch to emulate the
> VM_CR MSR. That particular patch is in a follow-up mail of
> v3.
> 
> >  Anyone who has tried this ? Any known gotchas,
> workarounds ? Any particular version of KVM required ?
> 
> SMP doesn't work and Ubuntu's timestamp stays at 0
> on bootup. That's all issues that should concern you
> atm.
> 
> Alex
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