Thanks. Good to know that most hypervisors are using this mechanism. /Jd
--- On Wed, 8/13/08, Anthony Liguori <[EMAIL PROTECTED]> wrote: > From: Anthony Liguori <[EMAIL PROTECTED]> > Subject: Re: KVM Guest detection > To: [EMAIL PROTECTED] > Cc: "KVM List" <kvm@vger.kernel.org> > Date: Wednesday, August 13, 2008, 11:59 AM > jd wrote: > > Hi > > > > Is there a way to detect if a particular machine is a > VM running on KVM hypervisor or not. i.e from within a guest > can one figure out if it is running on top of a hypervisor > and not physical machine ? [For both Linux guests and > Windows guests ] > > > > The preferred way of doing this is checking CPUID leaf > 0x4000 0000 for > the signature "KVMKVMKVM". > > Most hypervisors (KVM, Xen, VMware, and Hyper-V) are > adopting this as > the preferred detection mechanism. > > Regards, > > Anthony Liguori > > > /Jd > > > > > > > > > > -- > > To unsubscribe from this list: send the line > "unsubscribe kvm" in > > the body of a message to [EMAIL PROTECTED] > > More majordomo info at > http://vger.kernel.org/majordomo-info.html > > > > -- > To unsubscribe from this list: send the line > "unsubscribe kvm" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at > http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
