Support for:
— The ARMv8 architecture.
— Locality-specific Peripheral Interrupts (LPIs).
— Private Peripheral Interrupts (PPIs).
— Software Generated Interrupts (SGIs).
— Shared Peripheral Interrupts (SPIs).
— Interrupt masking and prioritization.
— Uniprocessor and multiprocessor systems.
— Wakeup events in power management environments.
