powerpc/64s/pseries: machine check convert to use common event code
The common machine_check_event data structures and queues are mostly platform independent, with powernv decoding SRR1/DSISR/etc., into machine_check_event objects. This patch converts pseries to use this infrastructure by decoding fwnmi/rtas data into machine_check_event objects. This allows queueing to be used by a subsequent change to delay the virtual mode handling of machine checks that occur in kernel space where it is unsafe to switch immediately to virtual mode, similarly to powernv. Signed-off-by: NNicholas Piggin <npiggin@gmail.com> [mpe: Fix implicit fallthrough warnings in mce_handle_error()] Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190802105709.27696-10-npiggin@gmail.com
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