tree ca43bf5c4c8cacd70bc93fee77e9d9f098e8bdaf
parent 9d4c9c17b7d6c680b0c9801a9a190521c02852e9
author Jeenu Viswambharan <jeenu.viswambharan@arm.com> 1526552641 +0100
committer Jeenu Viswambharan <jeenu.viswambharan@arm.com> 1531991598 +0100

RAS: Introduce handler for Double Faults

Double fault is when the PE receives another error whilst one is being
handled. To detect double fault condition, a per-CPU flag is introduced
to track the status of error handling. The flag is checked/modified
while temporarily masking external aborts on the PE.

This patch routes double faults to a separate platform-defined handler.

Change-Id: I70e9b7ba4c817273c55a0af978d9755ff32cc702
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>