Softirq

Detailed Explanation of ARMv8/ARMv9 Interrupts: Software Aspects – An Introduction to Linux Kernel Interrupts

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Detailed Explanation of ARMv8/ARMv9 Interrupts: Software Aspects - An Introduction to Linux Kernel Interrupts

Table of Contents 1 Definition of the Linux Kernel ARM64 Interrupt Vector Table 2 Setting the Base Address of the Interrupt Vector Table in Linux Kernel ARM64 3 Introduction to the kernel_ventry Macro 4 Unimplemented Exception Vectors: elx_yyy_invalid 5 Introduction to el1_irq – Jumping to the Registered Handler Function 6 handle_domain_irq 7 Introduction to Interrupt … Read more

An Overview of Linux Interrupt Handling

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An Overview of Linux Interrupt Handling

Stage One: Obtaining the Interrupt Number Each CPU has the ability to respond to interrupts. When a CPU responds to an interrupt, it follows the same process. This process is the interrupt service routine provided by the kernel. Upon entering the interrupt service routine, the CPU has automatically disabled interrupt responses on that CPU, as … Read more