centaur_get_free_region(9)

✨ NAME ✨

okay bestie, this is the centaur_get_free_region(9) page from the Kernel API Manual 🫶. The function centaur_get_free_region is here to get a free MTRR — that’s the whole assignment, and it ate. 💅

🌸 SYNOPSIS 🌸

int centaur_get_free_region (unsigned long base , unsigned long size , int replace_reg );

🎀 ARGUMENTS 🎀

• base — the starting (base) address of the region 📍. Like, where the region starts, periodt.
• size — the size of the region, in bytes 🧮.
• replace_reg — the page says -- undescribed -- 😭. That’s literally all the description there is, bestie; no extra lore, no cap.

🔥 RETURN 🔥

On success, you get the index of the region 👑. On error, you get -1 💀. That’s it, fr fr.

🦋 SEE ALSO 🦋

• Kernel file: ./arch/x86/kernel/cpu/mtrr/centaur.c ✨

mwah 💋 this little page comes from the ./arch/x86/kernel/cpu/mtrr source/version and is dated October 2026 — iconic, bye! 🌈