From mboxrd@z Thu Jan 1 00:00:00 1970 From: jd Subject: Re: Running KVM inside a KVM guest. Date: Tue, 14 Oct 2008 12:31:20 -0700 (PDT) Message-ID: <506944.85685.qm@web35807.mail.mud.yahoo.com> References: <98ED46CE-9AF9-4F3F-8CE8-40A8432299EB@suse.de> Reply-To: jdsw2002@yahoo.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: KVM List To: Alexander Graf Return-path: Received: from web35807.mail.mud.yahoo.com ([66.163.179.176]:21202 "HELO web35807.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751307AbYJNTbV (ORCPT ); Tue, 14 Oct 2008 15:31:21 -0400 In-Reply-To: <98ED46CE-9AF9-4F3F-8CE8-40A8432299EB@suse.de> Sender: kvm-owner@vger.kernel.org List-ID: 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 wrote: > From: Alexander Graf > Subject: Re: Running KVM inside a KVM guest. > To: jdsw2002@yahoo.com > Cc: "KVM List" > 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