tee_shm_register_user_buf(9)

💖 tee_shm_register_user_buf 💖

okay bestie, so this is a page from the Kernel API Manual — yes, actual kernel docs, we're being ✨academic✨ today — and it's all about tee_shm_register_user_buf, which registers a userspace shared memory buffer. ngl it's a short one, so we're gonna read it together and slay 🫶

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✨ NAME ✨

tee_shm_register_user_buf — register a userspace shared memory buffer 💅

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✨ SYNOPSIS ✨

struct tee_shm * tee_shm_register_user_buf (struct tee_context *ctx ,
unsigned long addr , size_t length );

so it's giving "returns a struct tee_shm *, takes three things." and that's the whole vibe check lmao 🎀

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✨ ARGUMENTS ✨

• ctx — the context that registers the shared memory. like, who's doing the registering, y'know? main character energy 👑
• addr — the userspace address of the shared buffer. that's where it lives in user land 🏠
• length — length of the shared buffer. how much of it there is, periodt 📏

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✨ DESCRIPTION ✨

okay so this is genuinely the whole description: it returns a pointer to struct tee_shm ✨ that's it. that's the function. short and iconic, no cap 💀

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✨ SEE ALSO ✨

the kernel file is ./drivers/tee/tee_shm.c and it's basically the family group chat of TEE shm functions — go say hi to all of them 🦋

• tee_shm_alloc_user_buf(9)
• tee_shm_alloc_kernel_buf(9)
• tee_shm_alloc_priv_buf(9)
• tee_shm_alloc_dma_mem(9)
• tee_shm_register_kernel_buf(9)
• tee_shm_get_fd(9)
• tee_shm_free(9)
• tee_shm_get_va(9)
• tee_shm_get_pa(9)
• tee_shm_get_from_id(9)
• tee_shm_put(9)

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lowkey a tiny page but that's fine, we love a bite-sized baddie 🍓

okay that's the whole thing!! mwah 💜

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🌸 that's a wrap, bestie 🌸 this cutie came straight out of the source dir ./drivers/tee (that's the version/source situation), dated October 2026, and it's called tee_shm_register_user_buf(9) — go forth and register those user buffers, you absolute icon ✨🎀👑