Re: [Qemu-riscv] [Qemu-devel] [PULL 33/34] roms: Add OpenSBI version 0.3

[Paolo Bonzini]

On 02/07/19 06:12, Markus Armbruster wrote:
>> Yeah, if we're not building the apache-2.0 parts then I think
>> we're OK, and as you say there's the question of whether QEMU's
>> GPL affects what we ship as mere bios blobs to run as guest
>> code anyway. But it's sufficiently not a "really obviously ok"
>> that I'd like a second opinion; cc'd some people who might have
>> second opinions.
> 
> You need an expert opinion.
> 
> My non-expert opinion: we can't distribute anything that's not
> compatible with GPLv2

Guest code is not part of QEMU.  We don't say that SeaBIOS, SLOF, etc. 
are part of QEMU; it constitutes mere aggregation with the GPLv2 QEMU 
sources, so it _is_ possible to distribute APSL2 guest code with QEMU.  
IANAL, but I'm fairly sure about this.

However I agree that LICENSE needs to be updated, something like this:

diff --git a/LICENSE b/LICENSE
index 0e0b4b9553..81b9b3572d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,13 +1,18 @@
-The following points clarify the QEMU license:
+The QEMU distribution includes both the QEMU emulator and
+various firmware files.  These are separate programs that are
+distributed together for our users' convenience, and they have
+separate license.
 
-1) QEMU as a whole is released under the GNU General Public License,
-version 2.
+The following points clarify the license of the QEMU emulator:
 
-2) Parts of QEMU have specific licenses which are compatible with the
-GNU General Public License, version 2. Hence each source file contains
-its own licensing information.  Source files with no licensing information
-are released under the GNU General Public License, version 2 or (at your
-option) any later version.
+1) The QEMU emulator as a whole is released under the GNU General
+Public License, version 2.
+
+2) Parts of the QEMU emulator have specific licenses which are compatible
+with the GNU General Public License, version 2. Hence each source file
+contains its own licensing information.  Source files with no licensing
+information are released under the GNU General Public License, version
+2 or (at your option) any later version.
 
 As of July 2013, contributions under version 2 of the GNU General Public
 License (and no later version) are only accepted for the following files

Paolo