optee_to_msg_param(9)

🎀 NAME 🎀

okay so bestie, this is the optee_to_msg_param(9) page from the Kernel API Manual ✨ and it is literally here to convert from struct tee_params to OPTEE_MSG parameters. no cap 💅

✨ SYNOPSIS ✨

int optee_to_msg_param (struct optee *optee , struct optee_msg_param *msg_params , size_t num_params , const struct tee_param *params );

💖 ARGUMENTS 💖

• optee — the main service struct. main character energy, honestly 👑
• msg_params — the OPTEE_MSG parameters. periodt 🎀
• num_params — number of elements in the parameter arrays. yes, plural arrays, keep up 💅
• params — the subsystem’s internal parameter representation. iconic source-side behavior 🫶

and the return? this function gives you 0 on success or <0 on failure, so check it before you celebrate 😭✨

🌈 SEE ALSO 🌈

first, the Kernel file ./drivers/tee/optee/smc_abi.c — then the whole group chat:

• optee_from_msg_param(9)
• optee_enable_shm_cache(9)
• __optee_disable_shm_cache(9)
• optee_disable_shm_cache(9)
• optee_disable_unmapped_shm_cache(9)
• optee_fill_pages_list(9)
• optee_shm_pool_alloc_pages(9)
• optee_handle_rpc(9)
• optee_smc_do_call_with_arg(9)

okay bye bestie, this was optee_to_msg_param(9) from the source/version ./drivers/tee/optee, dated October 2026 — slay and read your kernel docs 💅🌸