Armv8 Architecture: Exception And Crash Debugging

Exception and Crash case study in Cortex-A based Processor(Armv8-Aarch64)

What you'll learn

The basic concept of Exception in Armv8-A

4 exception provided by Armv8-A

Synchronous exception

IRQ and FIQ exception

Crash case studies

Requirements

Computer Architecture

Micro-processor

Description

Smartphones, AI System-on-Chip (SoC), Electric Vehicle Automotive (Infotainment, Autonomous Driving), and Arm processors used in cloud servers and MacBooks are all based on the Armv8-A architecture, which is a 64-bit Cortex-A processor (e.g., Cortex-A53, Cortex-A57, Cortex-A72). Currently, in the system software industry, knowledge of the Armv8-A architecture is considered essential as it is in high demand.This lecture covers the Exception, that is the key feature of Armv8-A architecture necessary for the development of software systems. The intended learners will understand;Concept of Exception How Arm core generates Exception System call or Secure monitor callException vector tableTo understand key features of Armv8, we need to primary concept of Exception. This lecture explains the details of Exception which is not discuss in the conventional course which includes; Which registers are updated when Arm core generates exception Correlation between exception vector table and exception handler Common scenario of exception handlers How IRQ and FIQ is handled under secure environment How exception level is switched In general, a piece of software, such as an application, the kernel of an operating system, or a hypervisor, is implemented using exception. So understanding exception is important. If you understand what this lecture cover, you will have; Strong debugging skills Broaden your insight of system architecture Better understanding of Armv8 architecture

Overview

Section 1: Introduction

Lecture 1 Introducing this course

Section 2: Introducing Exception

Lecture 2 Introduction to Exception in CPU architecture

Lecture 3 Introduction to Exception in Arm architecture

Lecture 4 Why need to learn Exception: Intro

Lecture 5 Why need to learn Exception: 1. To level up troubleshooting skills

Lecture 6 Why need to learn Exception: 2. To understand fundamentals of Arm architecture

Lecture 7 Why need to learn Exception: 3. To gain insight into Linux kernel and RTOS

Section 3: Introducing Exception in Armv8-A

Lecture 8 Key feature of Exception in Armv8-A

Lecture 9 Types of exception: IRQ and memory abort

Lecture 10 Exceptions in Armv8-A: Synchronous, IRQ, FIQ, SError

Lecture 11 Switching exception level

Section 4: Synchronous Exception - memory abort

Lecture 12 Synchronous Exception - memory abort

Lecture 13 Workflow: Synchronous Exception - memory abort (Part.1)

Lecture 14 Workflow: Synchronous Exception - memory abort (Part.2)

Section 5: Synchronous Exception - SVC

Lecture 15 Workflow: Synchronous Exception - SVC (Part.1)

Lecture 16 Workflow: Synchronous Exception - SVC (Part.2)

Section 6: IRQ Exception

Lecture 17 Introduction to interrupt type exception

Lecture 18 Operation of IRQ Exception Generation-Part.1

Lecture 19 Operation of IRQ Exception Generation-Part.2

Lecture 20 Operation of IRQ Exception Generation-Part.1 (Duplicated)

Lecture 21 Operation of IRQ Exception Generation-Part.3

Lecture 22 IRQ interrupt exception handling routine

Lecture 23 IRQ interrupt return

Lecture 24 Interrupt handling from software point of view

Lecture 25 Summary: Interrupt handling with big picture

Section 7: FIQ Exception

Lecture 26 Introduction to FIQ

Lecture 27 FIQ Exception handler (Linux kernel)

Section 8: SError Exception

Lecture 28 Introducing SError Exception

Lecture 29 Workflow-SError Exception(Part.1)

Lecture 30 Workflow-SError Exception(Part.2)

Lecture 31 SError exception handling routine

Section 9: Exception handling at EL1

Lecture 32 Memory abort Exception handling at EL1

Lecture 33 Memory system in case of Memory abort

Lecture 34 IRQ(Interrupt) Exception handling at EL1

Lecture 35 IRQ(Interrupt) handling - Software point of view

Section 10: How to analyze exception vector table

Lecture 36 Part1-set current exception levels

Lecture 37 Part2-Understand 'Current Exception level with SP_EL0'

Lecture 38 Part3-Simplified Exception vector table

Lecture 39 Exception handling in Linux kernel

System software engineer,Professionals interested in exploring Embedded systems,Professionals interested in exploring Armv8 architecture,Hobbyists and students who want to start their career in Embedded world,If you think about 'embedded' then think about taking this course. you will not be disappointed,System software engineers who are eager to level up debugging skills