NAME¶
ImVirt - detects several virtualizations
SYNOPSIS¶
use ImVirt;
print imv_get(IMV_PROB_DEFAULT, imv_detect()),"\n";
DESCRIPTION¶
The "ImVirt" package tries to detect if it is run in a virtualization
container. At least the following container should be detected:
- ARAnyM
- KVM
- lguest
- LXC
- OpenVZ
- QEMU
- UML
- VirtualBox
- Virtual PC/Server
- VMware
- Xen
DETECTION HEURISTIC¶
The detection is based on a heuristic - you should not trust the result at all.
ImVirt probes for different well-known characteristics of different
virtualization containers. Any characteristics found or not found are weighted
by their significance.
The result of the heuristic is a weighted tree. The leaves are the (not)
detected containers.
FUNCTIONS¶
The following functions should be used to retrieve the detected virtualization
containers:
- imv_get($prob) Returns exactly one string describing the detected
container. If the detected container has a smaller match probability than
$prob the string 'Unknown' is returned.
- imv_get_all() Returns a hash any positive detected containers as
keys and their corresponding match probability as value.
- imv_get_pos_results() Returns a list of all possible results which
might be returned by all detection modules. The list entries might be
appended by some additional data like version numbers etc.