verify_limits(9)

📦 version 7.3.1, in nixpkgs unstable

💖 verify_limits(9) 💖

okay so bestie, welcome to verify_limits — the little kernel function from the ips show (that's the Intel Performance... something, iykyk, it's the Intel IPS driver energy 🔥). it's giving "trust but verify" and honestly? iconic.

✨ NAME ✨

verify_limits — verify BIOS provided limits 🎀

like, the BIOS says it gave us limits. are we just gonna believe it? absolutely not. we check. periodt.

🌸 SYNOPSIS 🌸

void verify_limits (struct ips_driver *ips );

that's it. that's the whole vibe check. void return, one arg, no drama 💅

🦋 ARGUMENTS 🦋

  • ips — the IPS structure 🌈 straightforward, unproblematic, the main character of this function fr.

💜 DESCRIPTION 💜

okay so here's the tea ☕: the BIOS can optionally provide non-default limits for power and temp. optional!! it's not a guarantee, it's a maybe, and we've all been burned by a maybe before 😭.

so this function checks them right here — and if the BIOS values weren't provided at all, or they're "otherwise unusable" (read: sus 💀), we just go ahead and use the defaults. no cap, defaults are the safety net and they ate.

lowkey the whole point: never trust a limit you didn't verify. BIOS said what it said, we're double-checking anyway 🫶

👑 SEE ALSO 👑

Kernel file ./drivers/platform/x86/intel_ips.c — the mothership, go read it bestie 📖✨

and the whole friend group, aka the rest of the IPS squad:

that's the entire group chat, no one left on read 💖

and that's the page!! 🌟 brought to you by ./drivers/platform/x86 — October 2026 era — and yeah, it's verify_limits(9) forever. bye bestie, go verify those limits 🧚💜

📦 where this page comes from