4 ms·

The PSP is responsible for memory training and re-enabling after wake-up. So neutralizing might work (given that signatures can be tricked), but you have to be

The PSP is responsible for memory training and re-enabling after wake-up. So neutralizing might work (given that signatures can be tricked), but you have to be very careful to keep a sizable set of modules alive.

mehrdadn 7y ago
What is "memory training"?
- vardump 7y ago
  It's related to correcting DDR memory signal timing / clock skew.
  - mehrdadn 7y ago
    Oh it's the timing calibration thing that happens on initialization? Didn't realize that's called memory training haha cool!
    - rurban 7y ago
      That's probably what the unsigned data bodies are for. This data needs to be on the fast path.
agapon 7y ago
Are you sure? I thought that that was what AGESA code is doing.
- pgeorgi 7y ago
  Before Zen, yes. Since Zen, that's in PSP, presumably for the PSP's various other features.