DBCIOCPARAM(9)

💖 NAME 💖

okay so bestie, this is DBCIOCPARAM(9) from the Kernel API Manual, and it is literally the “Set or get a parameter from the PSP” request. Quick vibe check: this request will only work after DBCIOCUID has successfully set the UID of the calling process. Whether the parameter is set or get is controlled by the message ID in the request. This command must be sent using a 32 byte signature built using the nonce fetched from DBCIOCNONCE. When the command succeeds, the 32 byte signature will be updated by the PSP for software to authenticate the results. slay, that’s the whole flow 💅

✨ SYNOPSIS ✨

DBCIOCPARAM

🎀 SEE ALSO 🎀

• Kernel file ./include/uapi/linux/psp-dbc.h
• AMD Dynamic Boost Control (DBC) interface(9)
• struct dbc_user_nonce(9)
• struct dbc_user_setuid(9)
• struct dbc_user_param(9)
• DBCIOCNONCE(9)
• DBCIOCUID(9)
• enum dbc_cmd_msg(9)

that’s the tea 🫖 — this page comes from ./include/uapi/linux, dated October 2026, and it’s serving DBCIOCPARAM(9) energy, periodt 💋✨