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Date: Thu, 09 Apr 2015 05:48:14 +0200
From: =?ISO-8859-15?Q?Andreas_F=E4rber?= <afaerber@suse.de>
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Subject: Re: [Qemu-devel] [PULL 22/62] block: Support Archipelago as a QEMU
 block backend
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To: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org, Chrysostomos Nanakos <chris@include.gr>, Jeff Cody <jcody@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>

Am 08.08.2014 um 19:39 schrieb Kevin Wolf:
> From: Chrysostomos Nanakos <cnanakos@grnet.gr>
>=20
> VM Image on Archipelago volume is specified like this:
>=20
> file.driver=3Darchipelago,file.volume=3D<volumename>[,file.mport=3D<map=
perd_port>[,
> file.vport=3D<vlmcd_port>][,file.segment=3D<segment_name>]]
>=20
> 'archipelago' is the protocol.
>=20
> 'mport' is the port number on which mapperd is listening. This is optio=
nal
> and if not specified, QEMU will make Archipelago to use the default por=
t.
>=20
> 'vport' is the port number on which vlmcd is listening. This is optiona=
l
> and if not specified, QEMU will make Archipelago to use the default por=
t.
>=20
> 'segment' is the name of the shared memory segment Archipelago stack is=
 using.
> This is optional and if not specified, QEMU will make Archipelago to us=
e the
> default value, 'archipelago'.
>=20
> Examples:
>=20
> file.driver=3Darchipelago,file.volume=3Dmy_vm_volume
> file.driver=3Darchipelago,file.volume=3Dmy_vm_volume,file.mport=3D123
> file.driver=3Darchipelago,file.volume=3Dmy_vm_volume,file.mport=3D123,
> file.vport=3D1234
> file.driver=3Darchipelago,file.volume=3Dmy_vm_volume,file.mport=3D123,
> file.vport=3D1234,file.segment=3Dmy_segment
>=20
> Signed-off-by: Chrysostomos Nanakos <cnanakos@grnet.gr>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>  MAINTAINERS         |   6 +
>  block/Makefile.objs |   2 +
>  block/archipelago.c | 787 ++++++++++++++++++++++++++++++++++++++++++++=
++++++++
>  configure           |  40 +++
>  4 files changed, 835 insertions(+)
>  create mode 100644 block/archipelago.c

Judging by configure output in v2.3.0-rc2, QEMU seems to rely on
libxseg, which is GPL-3.0+: https://github.com/grnet/libxseg

How can anyone legally build this backend then? o.O

Any chance libxseg can be relicensed to GPL-2.0+?

Regards,
Andreas

--=20
SUSE Linux GmbH, Maxfeldstr. 5, 90409 N=FCrnberg, Germany
GF: Felix Imend=F6rffer, Jane Smithard, Jennifer Guild, Dilip Upmanyu,
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