Re: Qemu License question

[Daniel P . Berrangé]

On Thu, Jun 13, 2024 at 10:31:50AM +0200, Thomas Huth wrote:
> On 13/06/2024 07.22, Markus Armbruster wrote:
> > Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:
> > 
> > > On Thu, 13 Jun 2024 06:26, Peng Fan <peng.fan@nxp.com> wrote:
> > > > Hi All,
> > > > 
> > > > The following files are marked as GPL-3.0-or-later. Will these
> > > > Conflict with Qemu LICENSE?
> > > > 
> > > > Should we update the files to GPL-2.0?
> > > > 
> > > > ./tests/tcg/aarch64/semicall.h:7: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/x86_64/system/boot.S:13: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/riscv64/semicall.h:7: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/float_convs.c:6: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/float_helpers.h:6: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/libs/float_helpers.c:10: * 
> > > > SPDX-License-Identifier: GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/arm-compat-semi/semihosting.c:7: * 
> > > > SPDX-License-Identifier: GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/arm-compat-semi/semiconsole.c:7: * 
> > > > SPDX-License-Identifier: GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/float_convd.c:6: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/multiarch/float_madds.c:6: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/i386/system/boot.S:10: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > ./tests/tcg/arm/semicall.h:7: * SPDX-License-Identifier: 
> > > > GPL-3.0-or-later
> > > > 
> > > > Thanks,
> > > > Peng.
> > > 
> > > Hello Peng,
> > > 
> > > These are all actually GPL-2.0-or-later, in fact I can't find the string 
> > > GPL-3.0-or-later in the current master at all.
> > 
> > See commit 542b10bd148a (tests/tcg: update licenses to GPLv2 as intended).
> 
> Maybe it could be included in the stable releases before 9.0, too?
> CC:-ing qemu-stable for this now.

IMHO this is largely a non-issue from a licensing compatibility POV, and
thus not neccessary for stable.

This is self-contained test code that, IIUC, is not linking to the bits of
QEMU that are GPLv-2-only, so is valid to have any license. GPL-2.0+ is
just "nice to have" for consistency of the codebase.


With regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|