This means that KVM uses the hardware virtualization capabilities of the host machine's CPU to run virtual machines, while QEMU relies on software. The key difference between QEMU and KVM is that QEMU is a software-based virtualization solution (type 2 hypervisor), while KVM is a hardware-based virtualization solution (type 1 hypervisor).It can be used to launch different Operating Systems without rebooting the. In this mode, QEMU emulates a full system (for example a PC), including one or several processors and various peripherals. QEMU has two operating modes: Full system emulation. It is capable of emulating a wide variety of systems including ARM, x86 and RISC-V, among others.QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. It is widely available for variety of host operating-systems and requires minimal configuration for use in operating-system development. QEMU is a free and open-source emulator that performs hardware virtualization.
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