STRUCT CPUID_OUTPUT(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to struct cpuid_output(9) from the Kernel API Manual ✨ this page is literally about the output of a CPUID operation, and we're gonna get into it 💅

🎀 NAME 🎀

struct cpuid_output — Output of a CPUID operation 🦋

✨ SYNOPSIS ✨

struct cpuid_output {
    struct cpuid_regs       *regs;
    struct leaf_parse_info  *info;
 };

🌸 Members 🌸

  • regs — Pointer to an array of CPUID results, where each array element covers the full EAX->EDX output range 💖
  • info — Pointer to query info; for saving the number of filled elements at regs 🎀

🦋 Description 🦋

okay so a CPUID parser read function — think cpuid_read_generic or cpuid_read_0xN — uses this structure to save the CPUID query outputs ✨ Actual storage for regs and info is provided by the read function caller, and is typically within the CPU's CPUID table 🫶

See struct cpuid_parse_entry.read 👀

💜 SEE ALSO 💜

  • Kernel file ./arch/x86/kernel/cpu/cpuid_parser.h — plus the struct cpuid_parse_entry(9) page too, iykyk 🌈

mwah 💋 this one's from ./arch/x86/kernel/cpu, dated October 2026, and it's struct cpuid_output(9) all the way down — periodt ✨👑

📦 where this page comes from