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-rw-r--r--COPYING9
1 files changed, 9 insertions, 0 deletions
diff --git a/COPYING b/COPYING
index cf891e3892..07535ad7ea 100644
--- a/COPYING
+++ b/COPYING
@@ -9,6 +9,15 @@ the files in this repository are concerned is _this_ particular
version of the license (i.e., *only* v2, not v2.2 or v3.x or
whatever), unless explicitly otherwise stated.
+Some code fragments in the hypervisor and associated subsystems
+include the 2- or 3-clause BSD license stanzas (also known as Modified
+BSD licenses). When these code sections are compiled as part of a
+GPLv2-licensed program, such as Xen, the result is licensed under
+GPLv2. See the FSF's definition of GPL compatibility:
+ http://www.gnu.org/licenses/gpl-faq.html#WhatDoesCompatMean
+And how this applies to a range of open source licenses:
+ http://www.gnu.org/licenses/license-list.html
+
Licensing Exceptions (the relaxed BSD-style license)
----------------------------------------------------