Available on AArch64 only.
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Exception and interrupt handling.


Classifies different exception causes.
DAIF: Controls masking of different kinds of exceptions.
ESR_ELx: Holds information about the cause of the exception currently being handled.
A single entry in the exception VectorTable.
Exception vector table that contains code to handle exceptions from each combination of Kind and Source.


The kind of exception being handled: sync, IRQ, FIQ, SError.
The exception level that generated an exception.
VBAR_ELx: Contains the address of the VectorTable that the processor should use at a given exception level.