Published at LXer:
The Linux kernel has merged three hypervisors into its mainline tree, starting with KVM in 2.6.20, and continuing with Xen and lguest in the 2.6.23 release of the kernel. Hypervisors let users run multiple operating systems on a host system. Lguest is the simplest of the three in terms of usability and implementation, which makes it a good candidate for helping you learn how virtualization works.
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