In an ARM processor, every interrupt is managed by GIC(Generic Interrupt Controller). The possible interrupt sources are (1)PPI, (2)SPI, and (3)SGI : PPI (Private Peripheral Interrupt) : Every processor have its own PPIs. SPI(Shared Peripheral Interrupt) : Every processor can access SPIs. SGI(Software Generated Interrupt) : This interrupt is generated by software writing to a GICD_SGIR register...