KVM: PPC: Book3S HV P9: Switch to guest MMU context as late as possible

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Move MMU context switch as late as reasonably possible to minimise code
running with guest context switched in. This becomes more important when
this code may run in real-mode, with later changes.

Move WARN_ON as early as possible so program check interrupts are less
likely to tangle everything up.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210528090752.3542186-21-npiggin@gmail.com

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Nicholas Piggin 2021-05-28 19:07:40 +10:00 • committed by Michael Ellerman

parent edba6aff4f

commit 41f7799176

1 changed files with 20 additions and 20 deletions

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arch/powerpc/kvm/book3s_hv_p9_entry.c

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