STRUCT OPTEE_OPS(9)

💅 NAME 💅

struct optee_ops — the OP-TEE driver's own little internal operations squad, bestie

So this is a kernel API manual page for struct optee_ops(9), and like… it's a struct full of function pointers. Iconic behavior honestly.

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✨ SYNOPSIS ✨

struct optee_ops {
    int (*do_call_with_arg)(struct tee_context *ctx, struct tee_shm *shm_arg, u_int offs, bool system_thread);
    int (*to_msg_param)(struct optee *optee, struct optee_msg_param *msg_params, size_t num_params, const struct tee_param *params);
    int (*from_msg_param)(struct optee *optee, struct tee_param *params, size_t num_params, const struct optee_msg_param *msg_params);
    int (*lend_protmem)(struct optee *optee, struct tee_shm *protmem, u32 *mem_attr, unsigned int ma_count, u32 use_case);
    int (*reclaim_protmem)(struct optee *optee, struct tee_shm *protmem);
};

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🎀 Members 🎀

• do_call_with_arg — this one literally enters OP-TEE in secure world. main character energy fr, it's the whole point of the struct 🫶
• to_msg_param — converts from struct tee_param to OPTEE_MSG parameters. a lil translator bestie ✨
• from_msg_param — converts from OPTEE_MSG parameters to struct tee_param. the reverse trip, we love a round trip 🌸
• lend_protmem — lends physically contiguous memory as restricted memory, meaning it's inaccessible by the kernel. like handing someone your diary and then genuinely not being able to read it anymore 😭
• reclaim_protmem — reclaims that restricted memory previously lent with lend_protmem and makes it accessible by the kernel again. your diary is BACK 💖

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🦋 Description 🦋

Okay so listen 👀 — these OPs are only supposed to be used internally in the OP-TEE driver. Not for you, not for your friend, not for that one out-of-tree module you're cooking up. Internally only, periodt.

The whole vibe is that they abstract the different methods of entering OP-TEE in secure world. Different ways in, one tidy interface to rule them all 👑

ngl, "internal only" is doing a LOT of heavy lifting in that sentence, so pls respect it 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/tee/optee/optee_private.h
• struct optee_call_waiter(9)
• struct optee_call_queue(9)
• struct optee_supp(9)
• struct optee_pcpu(9)
• struct optee_smc(9)
• struct optee_ffa(9)
• struct optee_revision(9)
• struct optee(9)

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okay that's the whole page, you ate that bestie 💅✨ this one lives in ./drivers/tee/optee, dated October 2026, and it's filed under struct optee_ops(9) — go be fabulous with your function pointers 👑🫶