The following points clarify the QEMU license:
1) QEMU as a whole is released under the GNU General Public License
2) Parts of QEMU have specific licenses which are compatible with the
GNU General Public License. Hence each source file contains its own
In particular, the QEMU virtual CPU core library (libqemu.a) is
released under the GNU Lesser General Public License. Many hardware
device emulation sources are released under the BSD license.
3) QEMU is a trademark of Fabrice Bellard.