KVM

KVM (Kernel-based Virtual Machine) is a Linux-based virtualization technology that allows the host machine to run multiple isolated virtual machines with near-native performance. It uses hardware virtualization extensions (Intel VT-x / AMD-V) to convert Linux into a powerful hypervisor.

Features of KVM:

• Type-1 virtualization built into the Linux kernel for high performance.
• Uses hardware acceleration (Intel VT-x / AMD-V) for efficient VM execution.
• Supports multiple operating systems including Linux and Windows guests.
• Works with QEMU for hardware emulation and VM management.
• Live migration support for moving running virtual machines.
• Snapshot and backup support for VM state management.
• Secure isolation between virtual machines for better system stability.

To Usage Instruction:
/usr/local/bin/qemu-system-x86_64 --version

Access Tools:
Virtual Machine Manager (GUI): virt-manager
Command-line interface: virsh list --all

Disclaimer: KVM requires hardware virtualization support (Intel VT-x or AMD-V). If the CPU does not support these extensions, KVM cannot be used and only QEMU software emulation will work.