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THE VIDEO SHELF · x86 processor internals

DEF CON 26 - Christopher Domas - The Ring 0 Facade Awakening the Processors Inner Demons

Christopher Domas's DEF CON 26 talk on secret processor registers that vendors reserve for third parties holding trusted keys. He examines how users are locked out of parts of their own CPUs.

Why HN readers recommended it

HN commenters call his x86 internals talks spectacular and mention them whenever low-level processor surprises come up.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
DEFCONConference
Topic
x86 processor internals
Format
talk
Level
advanced
HN recommenders in dataset
2
HN mentions in dataset
3
Recommendation years in dataset
2019–2026

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • These links don't work for me, but the videos are on YT: - [LINK] - [VIDEO] And yes, they are spectacular.

    daniel-thompson on Hacker News · 2021-08
    In Compiling C Programs Into “Mov” Instructions (And Only “Mov” Instructions)
  • Holy shit, Christopher Domas is back. I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover. Then he got whisked away by Intel and now drops this. I'm excited. [^1]: [VIDEO] [^2]: [LINK]

    aecsocket on Hacker News · 2026-08
    In Spaghettifying DRAM

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.