The Hypervisor runs at a higher privilege level than the operating system (Game OS). Its job is simple: prevent you from reading or writing to certain memory addresses. Specifically, it prevents any code from seeing the "LV0" (Level 0) secrets.
He realized that the PS3’s BIOS had a fatal flaw: its random number generator wasn't random enough. By feeding the console the same "random" signature twice, he could derive the private keys. Suddenly, the ghost was visible. Here is the creepiest part of the PS3 BIOS. Inside the system’s NOR flash memory, there is a region called EID0 (Embedded Identification). This contains your console’s unique ID. playstation 3 bios
That was the PlayStation 3’s BIOS (Basic Input/Output System) in action. But unlike the simple "Press F2 to Setup" text on a PC, the PS3’s firmware was a locked vault, a miracle of engineering, and a minor scandal—all rolled into one. The Hypervisor runs at a higher privilege level
Let’s talk about why the PS3’s BIOS is one of the most fascinating pieces of software ever written. For the uninitiated, the PS3 originally shipped with a feature called "Other OS." Sony allowed you to wipe the hard drive partition and install Linux. Why? Because the Cell processor was so complex that Sony wanted academics and programmers to learn it for free. He realized that the PS3’s BIOS had a
