Re: Running KVM inside a KVM guest.

[jd <jdsw2002@yahoo.com>]

Hi Alex, 
  Wish u good luck for your operation. 
  Good to hear that this is possible and on AMD, as I have one AMD machine that I can play around with. I will try it out when I get a chance.

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