Registered 2007-04-08 by Lauro Ramos Venancio

QEMU is free software written by Fabrice Bellard that implements a fast processor emulator, allowing full virtualization of a PC system within another one. QEMU is a hypervisor and is similar to projects such as Bochs, VMware Workstation and PearPC, but has several features these lack, including increased speed on x86 (through an optional accelerator), and support for multiple architectures in-progress. By using dynamic translation it achieves a reasonable speed while being easy to port on new host CPUs. (-Wikipedia revision 120231598)

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performances.

When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. A host driver called the QEMU accelerator (also known as KQEMU) is needed in this case. The virtualizer mode requires that both the host and guest machine use x86 compatible processors.

Project information

Maintainer:
qemu
Driver:
qemu
Development focus:

trunk series 

lp:qemu 
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Programming Languages:
c
Licences:
Simplified BSD Licence, GNU GPL v2, GNU LGPL v2.1, MIT / X / Expat Licence, Public Domain
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