STRUCT X86_INIT_RESOURCES(9)

💅 struct x86_init_resources(9) 💅

okay bestie so this is a page straight out of the Kernel API Manual — we're talking struct x86_init_resources, and it's basically the platform-specific resource-ops starter pack 🎀

✨ NAME ✨

struct x86_init_resources — platform specific resource related ops 🫶

🌸 SYNOPSIS 🌸

struct x86_init_resources {
    void (*probe_roms)(void);
    void (*reserve_resources)(void);
    char *(*memory_setup)(void);
    void (*dmi_setup)(void);
    unsigned long realmode_limit;
 };

🦋 Members 🦋

nfg these are the little function pointers, each one carrying main character energy in its own lane ✨

• probe_roms — probe BIOS roms 🔍 iconic little rom-hunter behaviour
• reserve_resources — reserve the standard resources for the platform 🎀 claiming what's hers
• memory_setup — platform specific memory setup 💖 returns a char *, don't ask her how she's feeling
• dmi_setup — platform specific DMI setup 🌸
• realmode_limit — platform specific address limit for the real mode trampoline, and the default is 1M ⭐ (yes, the source literally says "default 1M", periodt)

🌈 SEE ALSO 🌈

okay so the source of truth is the kernel file ./arch/x86/include/asm/x86_init.h — that's the struct's home 🏠 and then she's got a whole group chat of sibling structs and enums, all listed, no gatekeeping:

• struct x86_init_mpparse(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_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)

k that's the whole page, no cap 💜 this one came from ./arch/x86/include/asm, dated October 2026 — literally the version stamp of the moment, bestie, and that's a wrap 🧚✨