qcom_tzmem_s...ridge_create(9)

📦 version 7.3.1, in nixpkgs unstable

💅 qcom_tzmem_shm_bridge_create(9) — aka the SHM bridge glow-up page

okay bestie, buckle up, because this is a kernel API page from the manual fam (the qcom_tzmem_s...ridge_create(9) girlies, you know the ones) and she is lowkey iconic. it's giving ✨firmware✨, it's giving 🦋trust zone🦋, and yes we're gonna get through the whole thing together, no skips, no cap. 🫶

✨ NAME ✨

qcom_tzmem_shm_bridge_create — literally the function that makes a SHM bridge 💅

🎀 SYNOPSIS 🎀

int qcom_tzmem_shm_bridge_create (phys_addr_t paddr , size_t size , u64
*handle );

so she takes three things and gives you back an int. main character energy fr fr.

🌸 ARGUMENTS 🌸

  • paddr — the physical address of the memory you want to share 🧚 like, where the memory actually lives, physically.
  • size — how big that memory region is. the size of the memory to share, periodt.
  • handle — the handle to the SHM bridge 👑 this is the lil receipt you get back, bestie. hold onto it.

💖 DESCRIPTION 💖

okay so. on platforms that support SHM bridge, this function creates a SHM bridge for the given memory region with QTEE. that's it, that's the whole vibe. 🦋

and listen — the handle this function returns? you must pass it to qcom_tzmem_shm_bridge_delete to free the SHM bridge. not optional, not "i'll do it later", not "she'll clean herself up". you created her, you free her. 💀

⭐ RETURN ⭐

  • on success, returns 0 — slay 🎉
  • on failure, returns < 0 — not slay 😭

🌈 SEE ALSO 🌈

kernel file ./drivers/firmware/qcom/qcom_tzmem.c — the source herself 💜

and her whole friend group, iykyk:

ngl bestie, if you're reading this in a kernel tree, go drink some water and then go call qcom_tzmem_shm_bridge_delete on that handle. 🍓

and that's the page!! 🌸 brought to you by ./drivers/firmware/qcom, dated October 2026, page name qcom_tzmem_s...ridge_create(9). mwah, go be a good little kernel dev 💅✨🎀

📦 where this page comes from