Paul Mackerras [off-list ref] writes:

On Thu, Aug 11, 2016 at 03:07:43PM +0200, Paolo Bonzini wrote:

quoted

hmi.c functions are unused unless sibling_subcore_state is nonzero, and
that in turn happens only if KVM is in use.  So move the code to
arch/powerpc/kvm/, putting it under CONFIG_KVM_BOOK3S_HV_POSSIBLE
rather than CONFIG_PPC_BOOK3S_64.  The sibling_subcore_state is also
included in struct paca_struct only if KVM is supported by the kernel.

Cc: Daniel Axtens <redacted>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mahesh Salgaonkar <redacted>
Cc: Paul Mackerras <redacted>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: kvm-ppc@vger.kernel.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Thanks, patch applied to my kvm-ppc-infrastructure branch, which is
merged into my kvm-ppc-next branch.

Ben already merged this into the powerpc tree, which has since gone to
Linus:

  https://git.kernel.org/torvalds/c/7c379526d7e7

cheers