On Thu, 10 Aug 2017 23:14:46 +1000
Michael Ellerman <m...@ellerman.id.au> wrote:
> Nicholas Piggin <npig...@gmail.com> writes:
> > POWER9 CPUs have independent MMU contexts per thread so KVM
> > does not have to bring sibling threads into real-mode when
> > switching MMU mode to guest. This can simplify POWER9 sleep/wake
> > paths and avoids hwsyncs.
> > Signed-off-by: Nicholas Piggin <npig...@gmail.com>
> > ---
> > arch/powerpc/include/asm/kvm_book3s_asm.h | 4 ++++
> > arch/powerpc/kernel/idle_book3s.S | 8 ++-----
> > arch/powerpc/kvm/book3s_hv.c | 37
> > ++++++++++++++++++++++++++-----
> > arch/powerpc/kvm/book3s_hv_rmhandlers.S | 8 +++++++
> This will need to go via, or at least be shared with Paul's tree.
> So if it's possible, splitting it out of this series would be easier.
I agree it's really a KVM patch, but patch 12 depends on this,
it is a Linux patch. Not sure how you want to handle that?