Kernel-Based Virtual Machine, more commonly referred to as KVM, is one of the most popular open-source virtualization technologies in use today. Both IBM and Red Hat use it as the basis for their Linux virtualization technologies, and it is the most widely used virtualization technology in the OpenStack cloud as well.
KVM was originally written by Israeli software developer Avi Kivity while he was working at Qumranet. Qumranet was acquired by Red Hat for $107 million in 2008.
In a video interview with eWEEK, Kivity reminisces about the history of KVM and its current popularity. Kivity said that the fact that KVM is integrated directly into Linux has been a key benefit, as the popularity of Linux continues to rise. KVM was first integrated into the mainline Linux kernel at the beginning of 2007 with the 2.6.20 kernel.