From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:36824) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S3Clw-000338-Gu for qemu-devel@nongnu.org; Thu, 01 Mar 2012 15:38:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S3Clu-0003c3-Ag for qemu-devel@nongnu.org; Thu, 01 Mar 2012 15:38:44 -0500 Received: from plane.gmane.org ([80.91.229.3]:38855) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S3Clu-0003b3-3j for qemu-devel@nongnu.org; Thu, 01 Mar 2012 15:38:42 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1S3Clp-0008Qf-Li for qemu-devel@nongnu.org; Thu, 01 Mar 2012 21:38:37 +0100 Received: from 93-34-182-16.ip50.fastwebnet.it ([93.34.182.16]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 01 Mar 2012 21:38:37 +0100 Received: from pbonzini by 93-34-182-16.ip50.fastwebnet.it with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 01 Mar 2012 21:38:37 +0100 From: Paolo Bonzini Date: Thu, 01 Mar 2012 21:38:24 +0100 Message-ID: References: <4F4E9E31.50903@storagecraft.com> <4F4F8FCD.7010106@redhat.com> <4F4FD1C9.8050006@storagecraft.com> <4F4FD7C7.7030001@mail.berlios.de> <4F4FDB8A.6060507@storagecraft.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit In-Reply-To: <4F4FDB8A.6060507@storagecraft.com> Subject: Re: [Qemu-devel] Add support for new image type List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Il 01/03/2012 21:26, Kai Meyer ha scritto: >> QEMU uses GPL v2. You can use a patched QEMU internally, >> but as soon as you want to give it to customers (or get it integrated >> in the official source tree), you must publish all code which is needed >> under an open license. > > It is a shared library. > >> If your image access library is a shared library (linked at runtime), >> the situation is more difficult. The intention of the GPL is still >> that you have to publish your code (this is also what the FSF says), >> but there are different opinions for GPL v2. There aren't really different opinions. Some people *tolerate* proprietary plugins, but strictly speaking that should be done with a specific exception to the GPL. It is not "some people think it's legal, some people don't". It is more like "some people don't care, some people do". > http://wiki.qemu.org/License > Portions of qemu (ie the qed block driver) are licensed under the LGPL. > Can you help me understand the impact of licensing our contributions > under the LGPL instead of GPL? No. The LGPL parts are separate, but when you distribute the combination you still have to honor _all_ the licenses at the same time. In practice this means the most restrictive license, which is the GPL. Paolo