Subject: Re: [PATCH 07/10] KVM: PPC: Add PAPR hypercall code for PR mode

From: Alexander Graf <[email-masked]>
Date: Tue, 09 Aug 2011 18:51:55 +0200

On 08/09/2011 06:49 PM, Avi Kivity wrote:
> On 08/09/2011 07:46 PM, Alexander Graf wrote:
>> On 08/09/2011 06:40 PM, Avi Kivity wrote:
>>> On 08/09/2011 07:31 PM, Alexander Graf wrote:
>>>> When running a PAPR guest, we need to handle a few hypercalls in 
>>>> kernel space,
>>>> most prominently the page table invalidation (to sync the shadows).
>>>>
>>>> So this patch adds handling for a few PAPR hypercalls to PR mode 
>>>> KVM. I tried
>>>> to share the code with HV mode, but it ended up being a lot easier 
>>>> this way
>>>> around, as the two differ too much in those details.
>>>>
>>>>
>>>> +++ b/arch/powerpc/kvm/book3s_pr_papr.c
>>>> @@ -0,0 +1,158 @@
>>>> +/*
>>>> + * Copyright (C) 2011. Freescale Inc. All rights reserved.
>>>> + *
>>>> + * Authors:
>>>> + *    Alexander Graf<[email-masked]>
>>>> + *    Paul Mackerras<[email-masked]>
>>>> + *
>>>> + * Description:
>>>> + *
>>>> + * Hypercall handling for running PAPR guests in PR KVM on Book 3S
>>>> + * processors.
>>>> + *
>>>> + * This program is free software; you can redistribute it and/or 
>>>> modify
>>>> + * it under the terms of the GNU General Public License, version 
>>>> 2, as
>>>> + * published by the Free Software Foundation.
>>>> + */
>>>
>>> Copyright freescale, authors Paul and yourself?
>>
>> Yeah, I'm reasonably clueless when it comes to legal stuff. This code 
>> is inspired by Paul's, but is mostly rewritten since it's so tied 
>> into the virtual MMU. What would the copyright be in that case?
>
> Just put your own (or your employers').  If someone contributed to the 
> code they can add their copyrights (or ask you do do it before 
> inclusion).
>
> It would be good to get Paul's or Ben's so that the unimportant 
> characters between the whitespace get some braintime.

So you mean I just put both copyright statements there? That's a nice idea!

Alex