qcom_scm_set_warm_boot_addr(9)

📦 version 7.3.1, in nixpkgs unstable

💖 qcom_scm_set_warm_boot_addr — the Kernel API Manual, bestie edition 💖

okay so welcome to the qcom_scm lore, specifically the part where we tell the secure world where to send the CPUs when they wake back up 😴➡️✨ this is a kernel API manual page (9 = kernel API section, iykyk), and we're gonna get into it.

✨ NAME ✨

qcom_scm_set_warm_boot_addr — literally just: set the warm boot address for all the cpus, no cap 🫶

🎀 SYNOPSIS 🎀

int qcom_scm_set_warm_boot_addr (void *entry );

that's it. one argument. one int coming back. main character energy fr 💅

🌸 ARGUMENTS 🌸

  • entry — the entry point function for the cpus 👑 like, this is the address the cpus should jump to. it's a void *, so... yeah, it's a pointer, we don't ask questions.

🦋 DESCRIPTION 🦋

okay so here's the vibe: this sets the Linux entry point that SCM will transfer control to when coming out of a power down 🔥

and like, "CPU power down" here? that can happen on cpuidle or on hotplug — both of those can trigger it, so this address is doing a lot of heavy lifting ngl. it's the "welcome back, go here" sign for your cpus 💜

no seriously bestie, this is the handoff point — SCM wakes the cpu and sends it to your entry. make sure it's a real one 🙈

⭐ SEE ALSO ⭐

the whole extended universe, bestie — go read these:

that's the whole friend group right there 🌈

and that's the page!! 💖 this slay was served up from the ./drivers/firmware/qcom corner of the tree, dated October 2026, and titled qcom_scm_set_warm_boot_addr(9) — go warm-boot those cpus responsibly, bestie 🧚✨🍓

📦 where this page comes from