From: Anthony Liguori <anthony@codemonkey.ws>
To: jdsw2002@yahoo.com
Cc: KVM List <kvm@vger.kernel.org>
Subject: Re: KVM Guest detection
Date: Wed, 13 Aug 2008 13:59:30 -0500 [thread overview]
Message-ID: <48A32F12.1000602@codemonkey.ws> (raw)
In-Reply-To: <173499.50107.qm@web35806.mail.mud.yahoo.com>
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
>
>
>
>
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next prev parent reply other threads:[~2008-08-13 19:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-13 17:57 KVM Guest detection jd
2008-08-13 18:40 ` David Mair
2008-08-13 18:59 ` Anthony Liguori [this message]
2008-08-13 21:05 ` jd
-- strict thread matches above, loose matches on Subject: below --
2015-02-06 20:08 KVM Guest Detection Chris J Arges
2015-02-09 13:26 ` Paolo Bonzini
2015-02-09 14:37 ` Chris J Arges
2015-02-09 16:12 ` Paolo Bonzini
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