def list_virtual(hostname, username, password, name):
    '''
    A function to list a specific virtual.

    hostname
        The host/address of the bigip device
    username
        The iControl REST username
    password
        The iControl REST password
    name
        The name of the virtual to list
    '''

    ret = {'name': name, 'changes': {}, 'result': False, 'comment': ''}

    if __opts__['test']:
        return _test_output(ret, 'list', params={
            'hostname': hostname,
            'username': username,
            'password': password,
            'name': name
        }
        )

    response = __salt__['bigip.list_virtual'](hostname, username, password, name)
    return _load_result(response, ret)