tee_shm_alloc_priv_buf(9)

💖 tee_shm_alloc_priv_buf(9) — the kernel API manual, but make it make sense 💖

okay so bestie, welcome to the tee_shm_alloc_priv_buf page from the Kernel API Manual — yes, that manual, the one with the (9) section number that makes it look all official and intimidating. it's literally just a function that grabs you some shared memory for a specific TEE driver to use privately. no cap. let's get into it 🫶

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✨ NAME ✨

tee_shm_alloc_priv_buf — allocate shared memory for private use by a specific TEE driver 💅

like, the memory is for that driver specifically, it's giving main character energy, not a share-with-everyone situation.

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🌸 SYNOPSIS 🌸

struct tee_shm * tee_shm_alloc_priv_buf (struct tee_context *ctx ,
size_t size );

there it is, in all its glory. two arguments in, one struct tee_shm * out. iconic. ✨

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🎀 ARGUMENTS 🎀

• ctx — the TEE context that's doing the shared memory allocation. it's the whole vibe of who is asking for the memory, iykyk.
• size — how big the shared memory allocation is. the size_t of it all. 📏

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⭐ RETURN ⭐

so what do you get back?? on success you get a pointer to struct tee_shm 🔥 — and on failure you get an ERR_PTR instead. so like, check it, bestie. don't just assume it's fine. ERR_PTR is not the moment. 😭

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🌈 SEE ALSO 🌈

okay this is the part where the manpage throws the entire friend group at you, and honestly? respect. 💜 all of these live around the kernel file ./include/linux/tee_core.h:

• struct tee_device(9)
• struct tee_driver_ops(9)
• struct tee_desc(9)
• struct tee_protmem_pool(9)
• struct tee_protmem_pool_ops(9)
• tee_device_alloc(9)
• tee_device_register(9)
• tee_device_unregister(9)
• tee_device_get(9)
• tee_device_put(9)
• tee_device_set_dev_groups(9)
• tee_session_calc_client_uuid(9)
• struct tee_shm_pool(9)
• struct tee_shm_pool_ops(9)
• tee_shm_pool_free(9)
• tee_protmem_static_pool_alloc(9)
• tee_get_drvdata(9)
• tee_shm_is_dynamic(9)
• tee_shm_put(9)
• tee_shm_get_id(9)
• tee_shm_get_from_id(9)
• teedev_open(9)
• teedev_close_context(9)
• teedev_ctx_get(9)
• teedev_ctx_put(9)

that's the whole group chat right there. go read them, they're not gonna read themselves. 🙈

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real talk: the memory you're allocating here is private to that specific TEE driver, so please don't go treating it like a public park. 🦋

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and that's the page!! mwah 💋 sign-off time: this cutie lives under ./include/linux and the version/date on the tin is October 2026, page tee_shm_alloc_priv_buf(9). slay, go allocate responsibly. 👑🌸