STRUCT X86_CPUINIT_OPS(9)

💖 struct x86_cpuinit_ops(9) 💖

okay bestie, this one is fresh out of the Kernel API Manual, and it's literally all about platform specific cpu hotplug setups. no cap, it's giving kernel-internals main character energy 🎀

🌸 NAME 🌸

struct x86_cpuinit_ops — platform specific cpu hotplug setups ✨

✨ SYNOPSIS ✨

struct x86_cpuinit_ops {
    void (*setup_percpu_clockev)(void);
    void (*early_percpu_clock_init)(void);
    void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
    bool parallel_bringup;
 };

🎀 Members 🎀

okay so these are the members, and yes, every single one is important 👑

• setup_percpu_clockev — set up the per cpu clock event device ⏰
• early_percpu_clock_init — early init of the per cpu clock event device 🌅
• fixup_cpu_id — fixup function for cpuinfo_x86::topo.pkg_id 🛠️
• parallel_bringup — Parallel bringup control 🚀

🦋 SEE ALSO 🦋

Kernel file ./arch/x86/include/asm/x86_init.h is where it lives, and the whole squad is right here — collect them all, iykyk 💅

• struct x86_init_mpparse(9)
• struct x86_init_resources(9)
• struct x86_init_irqs(9)
• struct x86_init_oem(9)
• struct x86_init_paging(9)
• struct x86_init_timers(9)
• struct x86_init_iommu(9)
• struct x86_init_pci(9)
• struct x86_hyper_init(9)
• struct x86_init_acpi(9)
• struct x86_guest(9)
• struct x86_init_ops(9)
• struct x86_legacy_devices(9)
• enum x86_legacy_i8042_state(9)
• struct x86_legacy_features(9)
• struct x86_hyper_runtime(9)
• struct x86_platform_ops(9)

and that's the whole page, bestie 🫶 source/version: ./arch/x86/include/asm · date: October 2026 · struct x86_cpuinit_ops(9) — periodt 💜