generic_set_mtrr(9)

🎀 NAME 🎀

generic_set_mtrr — set variable MTRR register on the local CPU.

okay so bestie, this page comes straight from the Kernel API Manual, and it's literally all about generic_set_mtrr(9). no cap 🫶

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✨ SYNOPSIS ✨

void generic_set_mtrr (unsigned int reg , unsigned long base , unsigned long size , mtrr_type type );

that's the whole signature, bestie — copy it exactly, spaces before the commas and all 💅

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💅 ARGUMENTS 💅

four args, let's go one by one ✨

• reg — the register to set.
• base — the base address of the region.
• size — the size of the region. If this is 0 the region is disabled.
• type — the type of the region.

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🌸 DESCRIPTION 🌸

okay so the description is short and iconic: this function returns nothing.

no return value, no little gift back, nada. it's giving void energy 💀✨

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🦋 SEE ALSO 🦋

if ur nosy (same), go peek at these 👀

• Kernel file ./arch/x86/kernel/cpu/mtrr/generic.c
• guest_force_mtrr_state(9)
• mtrr_type_lookup(9)
• set_fixed_range(9)
• generic_get_free_region(9)
• set_fixed_ranges(9)
• set_mtrr_state(9)

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k bye bestie 💖 shoutout to the source/version ./arch/x86/kernel/cpu/mtrr, dated October 2026 — slay 🎀