jhibbits fb28c52075 powerpc: Handle machine checks caused by D-ERAT multihit
Instead of crashing the user process when a D-ERAT multihit is detected, try
to flush the ERAT, and continue.  This machine check indicates a likely PMAP
invalidation shortcoming that will need to be addressed, but it's
recoverable, so just recover.  The recovery is pmap-specific to flush the
ERAT, so add a pmap function to do so, currently only implemented by the
POWER9 radix pmap.
2020-05-21 03:33:20 +00:00
..
2020-03-06 23:01:49 +00:00