PlayStation 3 Architecture: A Supercomputer From Another Planet by Rodrigo Copetti

Author:Rodrigo Copetti [Copetti, Rodrigo]
Language: eng
Format: epub
Tags: Nonfiction, Computers, Advanced Computing, Engineering, Computer Architecture, Application Software, Computer Graphics, Computer Science
ISBN: 9798201872199
Amazon: B0B5V9TW36
Goodreads: 62908903
Published: 2021-10-19T14:30:00+00:00

User Mode: As the name indicates, Cell only grants a limited set of resources [42, p. 32] and it’s directed to traditional applications running on top of the operating system. If for any reason, a program requests access to a protected location, then execution jumps to the Kernel or Hypervisor to request whether access should be granted or not.

Additionally, SPEs contain a modus operandi called isolated mode and it shields the execution process within the SPU so no external unit (the PPE or other SPEs) can access it until the SPU finishes. This can be activated after uploading a program to any SPE and ensures that the processor is not tampered with while the sensible code (i.e. an encryption routine) is being executed.

Sony’s operating system, which I’m going to describe in the following paragraphs, uses all the modes described to handle its security.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.