1QEMU is a FAST! processor emulator using dynamic translation to achieve 2good emulation speed. 3QEMU has two operating modes: 4 5 * Full system emulation. In this mode, QEMU emulates a full system 6(for example a PC), including a processor and various peripherials. 7It can be used to launch different Operating Systems without rebooting 8the PC or to debug system code. 9 * User mode emulation (Linux host only). In this mode, QEMU can launch 10Linux processes compiled for one CPU on another CPU. It can be used to 11launch the Wine Windows API emulator or to ease cross-compilation and 12cross-debugging. 13 14As QEMU requires no host kernel patches to run, it is very safe and easy to use. 15