5 ms·

What is the analogy behind being able to go into the restricted room?

• foota 9y ago
  You can call into the kernel. edit: s/call into/trigger a syscall/
  • IshKebab 9y ago
    You don't even need to do that for meltdown.
• 314 9y ago
  The restricted room is the part of the machine behind the protection. Memory reads are not checked at the tine access. They are checked when the instruction retires.
  • AlphaSite 9y ago
    On intel* this isn’t a property intrinsic to superscalar processors, other architectures check it in flight or while it’s in the issue queue, preventing this side channel.