STRUCT X86_INIT_IOMMU(9)

💅 struct x86_init_iommu(9) — a whole vibe from the Kernel API Manual

okay so bestie, welcome to the Kernel API Manual page for struct x86_init_iommu(9), aka the lil' hook where the platform gets to say "hey, here's how I wanna set up my IOMMU" ✨ it's one of those x86_init family structs, and honestly? it's giving "small but does exactly one job and does it iconically." 🎀

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🌸 NAME 🌸

struct x86_init_iommu — platform specific iommu setup 🦋

like, literally that's the whole thing. the platform hands over its own iommu setup routine and the kernel calls it. no cap.

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✨ SYNOPSIS ✨

struct x86_init_iommu {
    int (*iommu_init)(void);
 };

look at her. one member. zero drama. main character energy but make it minimal 💅

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🫶 Members 🫶

• iommu_init — platform specific iommu setup 🌈 this is the function pointer the platform fills in to do its own iommu setup. that's the entire job description, and she ate.

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🔥 SEE ALSO 🔥

bestie, this struct does not roll alone — it's part of a whole squad of x86_init friends, all chillin' in the kernel file ./arch/x86/include/asm/x86_init.h 💖 go say hi to:

• 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_pci(9)
• struct x86_hyper_init(9)
• struct x86_init_acpi(9)
• struct x86_guest(9)
• struct x86_init_ops(9)
• struct x86_cpuinit_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)

iykyk 👑

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ngl, if you only remember one thing: this struct is the platform's personal iommu-setup slot, and iommu_init is the one function pointer that lives there. periodt. 💀

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aaaand that's the page, babe 🧚 — straight outta ./arch/x86/include/asm, dated October 2026, from the struct x86_init_iommu(9) girlies to you. mwah 💜🍓