apm_power_off(9)

apm_power_off(9)

okay so this page is from the Kernel API Manual, bestie, and it's all about asking the BIOS to power off 💅

✨ NAME ✨

apm_power_off — ask the BIOS to power off ⚡

✨ SYNOPSIS ✨

void apm_power_off (void );

✨ ARGUMENTS ✨

• void — no arguments, like literally none, bestie 🫶

✨ DESCRIPTION ✨

Handle the power off sequence. This is the one piece of code we will execute even on SMP machines 👑🔥

In order to deal with BIOS bugs we support real mode APM BIOS power off calls 🧚✨

We also make the SMP call on CPU0 as some systems will only honour this call on their first cpu 💖

✨ SEE ALSO ✨

Kernel file: ./arch/x86/kernel/apm_32.c — and here's the whole bestie squad of references:

• apm_error(9)
• __apm_bios_call(9)
• apm_bios_call(9)
• __apm_bios_call_simple(9)
• apm_bios_call_simple(9)
• apm_driver_version(9)
• apm_get_event(9)
• set_power_state(9)
• set_system_power_state(9)
• apm_do_idle(9)
• apm_do_busy(9)
• apm_cpu_idle(9)
• apm_enable_power_management(9)
• apm_get_power_status(9)
• apm_engage_power_management(9)
• apm_console_blank(9)

okay bye bestie — this page lives in ./arch/x86/kernel and is dated October 2026 💖🎀