QEMUKVMn

QEMUKVMn refers to the integration of QEMU and KVM for hardware-assisted virtualization on Linux systems. QEMU is a machine emulator and virtualizer, capable of emulating a wide range of hardware. KVM, Kernel-based Virtual Machine, is a virtualization infrastructure for the Linux kernel that turns the kernel into a hypervisor. When used together, KVM handles the CPU and memory virtualization, while QEMU emulates the other hardware devices, such as network cards and storage controllers. This combination allows for near-native performance for guest operating systems.

The synergy between QEMU and KVM is a fundamental component of modern Linux virtualization solutions. KVM leverages hardware virtualization extensions (Intel VT-x or AMD-V) to provide efficient execution of guest code directly on the host CPU. QEMU then provides a rich set of emulated hardware devices, enabling guest operating systems to boot and run as if they were on dedicated physical hardware. This setup is widely used for server virtualization, cloud computing platforms, and development environments. Management of QEMUKVMn instances is often done through tools like libvirt, which provides an API and daemon for managing various virtualization technologies, including QEMU/KVM.