pseries_power_off(9)

🎀 NAME 🎀

okay so bestie, this is pseries_power_off(9) from the Kernel API Manual, and it's literally the function that tells firmware about how to power off the system. no cap. 💅

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✨ SYNOPSIS ✨

void pseries_power_off (void );

that's the whole signature — minimal, iconic, she ate. 🫶

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🌸 ARGUMENTS 🌸

• void — no arguments. zero, zilch, nada. she takes nothing. 🎀

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💖 DESCRIPTION 💖

okay so when this function runs, it calls either:

• the power-off rtas token in normal cases, or
• the ibm,power-off-ups token — but only if it's present & requested — in case of a power failure. ⚡

and the consequences are kinda different, so listen up:

• If the power-off token is used, power on will only be possible with a power button press. like, you gotta physically press the button, no cap. 🔘
• If the ibm,power-off-ups token is used, it will allow auto poweron after power is restored. she comes back on her own, periodt. 👑

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🦋 SEE ALSO 🦋

• Kernel file ./arch/powerpc/platforms/pseries/setup.c — go read it, iykyk. 🔥

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mwah 💋 this lil page comes from ./arch/powerpc/platforms/pseries and it's dated October 2026 — yes, the pseries_power_off(9) manual said that, and she slayed. 🎀✨