Description of problem:
Provided a error description about the api of getSecurityModel in libvirt-python. Actually, the getSecurityModel returns the security model of a hypervisor, not the securify model of the host.


Version-Release number of selected component (if applicable):
libvirt-1.2.8-16.el7_1.1.x86_64
libvirt-python-1.2.8-7.el7_1.1.x86_64


How reproducible:
100%


Steps:
1. In libvirt-python.
[root@localhost ~]# rpm -ql libvirt-python
/usr/lib64/python2.7/site-packages/libvirt.py
...

[root@localhost ~]# vim /usr/lib64/python2.7/site-packages/libvirt.py
...
    def getSecurityModel(self):
        """Extract information about the host security model """
...

2. In libvirt-docs. 
[root@localhost ~]# firefox /usr/share/doc/libvirt-docs-1.2.8/html/html/libvirt-libvirt.html
...
int	virNodeGetSecurityModel		(virConnectPtr conn,
					 virSecurityModelPtr secmodel)

Extract the security model of a hypervisor. The 'model' field in the @secmodel argument may be initialized to the empty string if the driver has not activated a security model.
...


Actual results :
As description.

Expected results :
Improve the description in libvirt-python.

Additional info:
[root@localhost ~]# vim /etc/libvirt/qemu.conf
...
# The default security driver is SELinux. If SELinux is disabled
# on the host, then the security driver will automatically disable
# itself. If you wish to disable QEMU SELinux security driver while
# leaving SELinux enabled for the host in general, then set this
# to 'none' instead.
...