Xen was initially debianized by Adam Heath It was downloaded from http://www.cl.cam.ac.uk/netos/xen The project is partially hosted on sourceforge. It's homepage on sf redirects to the above url. Part of the development is carried on at http://www.xensource.com Copyright: This package is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 dated June, 1991. This package is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this package; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA This is the header of Xen 3.0 upstream COPYING file which clarifies a bit how the licence is meant to be applied. The file continues with the complete text of the GNU General Public Licence version 2, which is not included here as it can be found on Debian GNU/Linux systems in `/usr/share/common-licenses/GPL-2'. XEN NOTICE ========== This license does *not* cover guest operating systems that use Xen services via normal hypercalls - this is merely considered normal use of Xen, and does *not* fall under the heading of "derived work". Also note that the GPL below is copyrighted by the Free Software Foundation, but the instance of code that it refers to (the Xen virtual machine monitor) is copyrighted by me and others who actually wrote it. Further note that the guest-OS interfacing header files, which includes all files within the subdirectory include/public, are *not* covered by the GPL but by a much weaker license: include/public/COPYING Also note that the only valid version of the GPL as far as Xen is concerned is _this_ particular version of the license (i.e., *only* v2, not v2.2 or v3.x or whatever), unless explicitly otherwise stated. -- Keir Fraser (on behalf of the Xen team) ===================================================================== As an exception, for the convenience of users who want to port other operating systems to Xen, some files are licensed under a BSD-style licence. This licence applies to all the files under the xen/include/public directory inside the upstream tarball. This is the content of the COPYING file in that directory: XEN NOTICE ========== This copyright applies to all files within this subdirectory. All other files in the Xen source distribution are covered by version 2 of the GNU General Public License. -- Keir Fraser (on behalf of the Xen team) ===================================================================== Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. And this, for reference, is the list of the files it applies to: xen/include/public/acm.h xen/include/public/acm_ops.h xen/include/public/arch-ia64.h xen/include/public/arch-x86_32.h xen/include/public/arch-x86_64.h xen/include/public/dom0_ops.h xen/include/public/event_channel.h xen/include/public/grant_table.h xen/include/public/hvm/hvm_info_table.h xen/include/public/hvm/ioreq.h xen/include/public/hvm/vmx_assist.h xen/include/public/io/blkif.h xen/include/public/io/console.h xen/include/public/io/netif.h xen/include/public/io/ring.h xen/include/public/io/tpmif.h xen/include/public/io/xenbus.h xen/include/public/io/xs_wire.h xen/include/public/memory.h xen/include/public/nmi.h xen/include/public/physdev.h xen/include/public/sched.h xen/include/public/sched_ctl.h xen/include/public/trace.h xen/include/public/vcpu.h xen/include/public/version.h xen/include/public/xen.h and all the files under tools/python/logging ===================================================================== There are other exceptions: ===================================================================== The files under extras/mini-os are under a BSD licence. The following files are under the LGPL licence version 2.1, which on a Debian system resides in /usr/share/common-licenses/LGPL-2.1. Unless explicitely specified only version 2.1 of the licence can be used. tools/examples/block-common.sh tools/examples/locking.sh tools/examples/logging.sh tools/examples/vif-common.sh tools/examples/vtpm-hotplug-common.sh tools/examples/xen-hotplug-common.sh tools/examples/xen-network-common.sh tools/examples/xen-script-common.sh tools/firmware/rombios/apmbios.S tools/firmware/rombios/rombios.c ioemu/COPYING.LIB ioemu/cpu-all.h ioemu/cpu-defs.h ioemu/cpu.h ioemu/exec-all.h ioemu/exec.c ioemu/hw/fmopl.c ioemu/target-i386-dm/helper2.c ioemu/thunk.c ioemu/thunk.h all the files under tools/firmware/vgabios (licence v2.1 or above) all the files under tools/python/xen all the files under tools/xenstore all the files under tools/vnet all the files under tools/xenstat ===================================================================== tools/vtpm_manager license Copyright (c) 2005, Intel Corp. All rights reserved. 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