Re: [PATCH 2/3] xen/ppc: Implement early serial printk on PaPR/pseries

["Shawn Anastasio" <shawn@xxxxxxxxxx>]

On Fri Jun 9, 2023 at 5:12 AM CDT, Julien Grall wrote:
> Strictly speaking we can refuse any code. That count for license as 
> well. Anyway, I didn't request a change here. I merely pointed out that 
> any use of GPLv2+ should be justified because on Arm most of the people 
> don't pay attention on the license and pick the one from an existing file.

Hi Julien,

The choice of GPLv2+ for many of the files in this patchset was indeed
inherited from old IBM-written Xen code that the files in question were
derived from. I did not realize it was permissible or even desirable to
relicense those to GPLv2-only.

As for the new files, GPLv2+ was chosen to remain consistent and to open
the door for future derivations from GPLv2+ licensed code, either from
the older Xen tree or from the Linux ppc tree, much of which is also
licensed as GPLv2+. If it would reduce friction, these files could be
relicensed to GPLv2-only.

Thanks,
Shawn