Arm Barriers 101: Part #4: Speculation and break-before-make

Deepen your understanding of Arm Architecture barriers with Part 4 of our comprehensive Barriers 101 training course. This module is specifically designed for software engineers developing system-level software on Arm-based platforms, covering everything from firmware to the kernel, hypervisor, and device drivers.

In this in-depth exploration, you'll discover:

• Spectre and Meltdown Attacks: Understand the mechanics of speculative side-channel attacks like Spectre and Meltdown.
• Barrier-Based Defense: Learn how to leverage barriers to effectively control speculation and build robust defenses against these vulnerabilities.
• Page Table Integrity: Avoid common pitfalls and debug nightmares by mastering break-before-make sequences when modifying page tables. We'll show you the correct application of barriers to ensure proper execution.

Suitable for All Skill Levels: Whether you're a seasoned Arm Architecture expert or new to Arm Barriers, this course provides valuable insights. We cater to learners of all experience levels.

Real-World Insights: Go beyond the basics. We provide a broader and deeper understanding of Arm Barriers, explaining how they work and, crucially, why they're essential.

Reinforce Your Knowledge: Test your comprehension with 30 multiple-choice quiz questions, complete with video walkthroughs of each question and answer. A final course revision session covers all lessons from the entire Barriers 101 training course.

Expert Instruction: This course is crafted and presented by Ash Wilding, a recognized trainer and former lead technical trainer at Arm, with experience as a kernel engineer at both Amazon AWS and Apple.