Re: [Qemu-devel] [PULL 22/62] block: Support Archipelago as a QEMU block backend

[Chrysostomos Nanakos]

On 2015-04-09 06:48, Andreas Färber wrote:
> Am 08.08.2014 um 19:39 schrieb Kevin Wolf:
> > From: Chrysostomos Nanakos <address@hidden>
> >
> > VM Image on Archipelago volume is specified like this:
> >
> >
> > file.driver=archipelago,file.volume=<volumename>[,file.mport=<mapperd_port>[,
> > file.vport=<vlmcd_port>][,file.segment=<segment_name>]]
> >
> > 'archipelago' is the protocol.
> >
> > 'mport' is the port number on which mapperd is listening. This is 
> > optional
> > and if not specified, QEMU will make Archipelago to use the default 
> > port.
> >
> > 'vport' is the port number on which vlmcd is listening. This is 
> > optional
> > and if not specified, QEMU will make Archipelago to use the default 
> > port.
> >
> > '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 
> > use the
> > default value, 'archipelago'.
> >
> > Examples:
> >
> > file.driver=archipelago,file.volume=my_vm_volume
> > file.driver=archipelago,file.volume=my_vm_volume,file.mport=123
> > file.driver=archipelago,file.volume=my_vm_volume,file.mport=123,
> > file.vport=1234
> > file.driver=archipelago,file.volume=my_vm_volume,file.mport=123,
> > file.vport=1234,file.segment=my_segment
> >
> > Signed-off-by: Chrysostomos Nanakos <address@hidden>
> > Reviewed-by: Stefan Hajnoczi <address@hidden>
> > Signed-off-by: Kevin Wolf <address@hidden>
> > ---
> >  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+?

Hello Andreas,
indeed the license has changed a few months after submitting the patch 
for the block driver to QEMU. I have already contacted the 
administration
of GRNET which is responsible for this change asking them about the 
aforementioned problem. I am waiting for the reply and hopefully we will 
resolve this license matter.

Regards,
Chrysostomos.