![]() Legacy interrupts – Legacy or fixed interrupts refer to interrupts that use older bus technologies. System now recognizes three types of interrupts: Interrupts that have been in use for many years. ![]() To stay current with changing bus technologies, the Solaris OS has beenĮnhanced to accommodate both newer types of interrupts and more traditional Vectored devices also supply an interrupt vector. Both methods commonly supply a bus-interrupt priority level. The Solaris DDI/DKI provides interfaces for performing the followingĭetermining interrupt type and registration requirementsīuses implement interrupts in two common ways: vectored and polled. It was doing before the interrupt occurred. When the interrupt handler returns, the CPU resumes the work Of the interrupt handler is to service the device and stop the device from The interrupt handler for the device that sent the interrupt signal. ![]() The interrupt, then the CPU suspends the current thread. If theĬPU is not performing a task that has higher priority than the priority of The CPU should stop any current activity and respond to the device. An interrupt tells the CPU that the device needs attention and that This chapter provides informationĪn interrupt is a hardware signal from a device Registering, servicing, and removing interrupts. ![]() This chapter describes mechanisms for handling interrupts, such as allocating,
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