linux-insides/interrupts

Interrupts and Interrupt Handling

You will find a couple of posts which describes an interrupts and an exceptions handling in the linux kernel.

• Interrupts and Interrupt Handling. Part 1. - describes an interrupts handling theory.
• Start to dive into interrupts in the Linux kernel - this part starts to describe interrupts and exceptions handling related stuff from the early stage.
• Early interrupt handlers - third part describes early interrupt handlers.
• Interrupt handlers - fourth part describes first non-early interrupt handlers.
• Implementation of exception handlers - descripbes implementation of some exception handlers as double fault, divide by zero and etc.
• Handling Non-Maskable interrupts - describes handling of non-maskable interrupts and the rest of interrupts handlers from the architecture-specific part.
• Dive into external hardware interrupts - this part describes early initialization of code which is related to handling of external hardware interrupts.
• Non-early initialization of the IRQs - this part describes non-early initialization of code which is related to handling of external hardware interrupts.
• Softirq, Tasklets and Workqueues - this part describes softirqs, tasklets and workqueues concepts.