https://x.com/Alexfvg01/status/2069518726559350821Dicen que no para usuarios nornales y solo en fw bajos:
Memory Management and CPU Privilege Layers (MMU / EL)
mmu_el0_common_phase2 – Handles the second phase of configuring the Memory Management Unit (MMU) for the EL0 privilege level (the user/application layer where games run). It defines which RAM boundaries a game can access and which are strictly off-limits.
mmu_el0_common_get_map_low / _high – Functions that retrieve memory maps (virtual addresses) for the lower and upper registers of the user space address range.
svc_EL3 – A Supervisor Call directed straight to the highest security layer of the processor – EL3 (Secure Monitor). It is used to securely bridge communication between the standard operating system and the isolated hardware security environment.
write_EL3 / puts_EL3 – Low-level functions used to output text strings or diagnostic logs directly from the secure EL3 environment.
Diagnostic and Logging Layer (Print / Putchar)
printf_low / putchar_low – Stripped-down, basic versions of standard code logging functions. They output text messages at a very early stage of the console's boot sequence, long before the main graphic operating system loads.
putchar_low_hook / putchar_cp_hook – Code "hooks" designed to intercept character output operations. They allow developers to redirect system logs (for instance, to an external UART/serial port for hardware debugging).
printf_cp / putchar_cp – Text logging functions tied to a co-processor (CP), likely the one handling security or cryptography.
putchar_pericom – Outputs a single text character to a specific hardware controller on the motherboard (Pericom is a well-known manufacturer of interface chips, such as video switches or peripheral bridges).
Sony’s Internal Debugging Protocol (DECI5 System)
deci5s_context_init – Initializes the working environment (context) for the DECI5 protocol, Sony’s proprietary debugging infrastructure used to communicate between a developer's PC and the console.
deci5s_context_handle_packet / _handle_dcmp_packet – Routines responsible for receiving and processing diagnostic data packets sent back and forth between the PC and the console during code execution tests.
deci5s_get_cpu – Grabs diagnostic information regarding the current state of the console's CPU cores.
deci5s_assert – A code safety mechanism. It checks whether specific logical conditions are met; if a critical failure is detected, it halts execution and reports the error.
deci5s_mp4_panic_and_loop – Handles critical kernel panics. If an unrecoverable system error occurs, it logs the event and forces the console into a safe loop to prevent data corruption.
deci5s_dcmp_protocol_info_print – Prints out comprehensive state information regarding the DCMP communication protocol (a sub-component of the DECI debugger) to the logs.
deci5s_context_check_overflow – Monitors the memory buffer allocated for logging and debugging data to make sure it doesn't overflow, which could otherwise crash the system.
Parameter and Cryptography Control
cp_param_init / cp_param_check – Initializes and verifies the correctness of parameters sent to the crypto processor (CP). This ensures that encryption keys and secure hardware configurations haven't been tampered with.
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