powerpc/pseries: PACA save area fix for MCE vs MCE
MCE must not enable MSR_RI until PACA_EXMC is no longer being used.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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MCE must not enable MSR_RI until PACA_EXMC is no longer being used.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>