Re: [PATCH] KVM: PPC: Update MAINTAINERS

[Sean Christopherson <seanjc@google.com>]

On Thu, Jun 08, 2023, Nicholas Piggin wrote:
> Michael is merging KVM PPC patches via the powerpc tree and KVM topic
> branches. He doesn't necessarily have time to be across all of KVM so
> is reluctant to call himself maintainer, but for the mechanics of how
> patches flow upstream, it is maintained and does make sense to have
> some contact people in MAINTAINERS.
> 
> So add Michael Ellerman as KVM PPC maintainer and myself as reviewer.
> Split out the subarchs that don't get so much attention.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---

Thanks for documenting the reality of things, much appreciated!

Acked-by: Sean Christopherson <seanjc@google.com>

>  MAINTAINERS | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 0dab9737ec16..44417acd2936 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -11379,7 +11379,13 @@ F:	arch/mips/include/uapi/asm/kvm*
>  F:	arch/mips/kvm/
>  
>  KERNEL VIRTUAL MACHINE FOR POWERPC (KVM/powerpc)
> +M:	Michael Ellerman <mpe@ellerman.id.au>
> +R:	Nicholas Piggin <npiggin@gmail.com>
>  L:	linuxppc-dev@lists.ozlabs.org
> +L:	kvm@vger.kernel.org
> +S:	Maintained (Book3S 64-bit HV)
> +S:	Odd fixes (Book3S 64-bit PR)
> +S:	Orphan (Book3E and 32-bit)

Do you think there's any chance of dropping support for everything except Book3S
64-bit HV at some point soonish?  There haven't been many generic KVM changes that
touch PPC, but in my experience when such series do come along, the many flavors
and layers of PPC incur quite a bit of development and testing cost, and have a
high chance of being broken compared to other architectures.