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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