STRUCT CPUID_PARSE_ENTRY(9)

🦋 NAME 🦋

okay so bestie, welcome to the Kernel API Manual 💅 — this page is all about struct cpuid_parse_entry, aka the CPUID parse table entry. literally one struct, one job, and it ate. ✨

🌸 SYNOPSIS 🌸

struct cpuid_parse_entry {
    unsigned int    leaf;
    unsigned int    subleaf;
    unsigned int    regs_offs;
    unsigned int    info_offs;
    unsigned int    maxcnt;
    void (*read)(const struct cpuid_parse_entry *e, const struct cpuid_output *o);
 };

no cap, that's the whole vibe. now let's meet the members 👑

🎀 Members 🎀

• leaf — the leaf number that's getting parsed 🍓 like, this is the CPUID leaf, bestie, it's giving main character energy.
• subleaf — the subleaf number to be parsed 🦋 the little sibling of leaf, and yes it also matters.
• regs_offs — offset within struct cpuid_leaves where the CPUID query output gets saved 💾 this is the one you pass to cpuid_table_regs_p. iykyk.
• info_offs — offset within struct cpuid_leaves where the CPUID query parse info gets saved 📝 and this one goes to cpuid_table_info_p. two offsets, two destinations, no mixing them up bestie 🙈
• maxcnt — the maximum number of output storage entries available for the CPUID query 🔥 that's the cap, literally and figuratively.
• read — the read function for this entry 👑 it must save the parsed CPUID output to the passed parsed and filled. a generic implementation is provided at cpuid_read_generic, so you don't have to hand-roll it if you don't wanna 🫶

🌈 SEE ALSO 🌈

• Kernel file ./arch/x86/kernel/cpu/cpuid_parser.h 📂
• struct cpuid_output(9) 💖

go read those too, bestie — this struct doesn't exist in a vacuum and you know it ✨

and that's the whole page, mwah 💋 this came from ./arch/x86/kernel/cpu, October 2026, straight outta the Kernel API Manual — slay, bye 🎀💜