imvirt - I’m virtualized?

This little perl script tries to detect if it is called from within a virtualization container. This is detected by looking for well-known boot messages, directories and reading DMI (Desktop Management Interface) data.

The following containers are detected:

• Virtual PC/Virtual Server
• VirtualBox
• VMware
• QEMU/KVM (experimental)
• Xen (para and non-para virtualized)
• OpenVZ/Virtuozzo
• UML
• any HVM providing CPUID 0x40000000 detection

The tool will print exactly one line. The result has the following meaning:

Line	Detected container
HVM: <signature>	signature of an unknown hypervisor1
VirtualBox	VirtualBox
Virtual Machine	Microsoft Virtual PC/Virtual Server
VMware	VMware Virtual Platform
VMware (Express	ESX Server
OpenVZ	OpenVZ/Virtuosso1
Physical	This is a physical machine or a not detected container.
QEMU	QEMU/KVM (based)
UML	User Mode Linux*
Xen	Xen hypervisor
Xen 3.x (PV|HVM)	Xen hypervisor1
lguest	Lguest: The Simple x86 Hypervisor2
ARAnyM	Atari Running on Any Machine3
LXC	Linux Containers3

There are simular packages for detecting virtualization containers available:

• virt-what from Richard Jones at Red Hat
• Perl module for detecting virtualization from Dave O’Neill

Downloads

The most current version is 0.9.5 (view ChangeLog).

Source packages can be found here.

There are official Debian packages available here.

VCS: https://github.com/DE-IBH/imvirt

Portable

There is a portable ImVirt version (imvirtp) available. It is a self-contained perl script (using PAR Packager). Downloads are available at github.