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Linux KVM (Kernel-based Virtual Machine)

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Linux KVM

KVM (Kernel-based Virtual Machine) is a virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).

  • The Kernel Module: Uniquely, KVM turns the Linux kernel itself into a hypervisor. It is not a separate piece of software you install under Linux; it is part of Linux.
  • QEMU: KVM needs a user-space tool to emulate hardware (disk controllers, network cards, USB). QEMU is almost always used in conjunction with KVM for this purpose.
  • Usage: It is the default hypervisor for essentially all Linux distributions and powers massive cloud platforms like OpenStack and Proxmox VE.