msr_read(9)

💖 NAME 💖

msr_read(9) — straight out of the Kernel API Manual, bestie — reads an MSR with error handling. That's the whole vibe 💅

✨ SYNOPSIS ✨

int msr_read (u32 msr , struct msr *m );

🌸 ARGUMENTS 🌸

• msr — the MSR to read 👑
• m — the value to read into 🫶

🦋 DESCRIPTION 🦋

Okay so here's the tea: msr_read gives you back read data only on success. Otherwise, it does not change the output argument m — like, not even a little. m stays exactly how it was. No cap. Periodt. 💅

🔥 RETURN 🔥

• 0 — success, slay ✨
• otherwise — an error code 😭

🎀 SEE ALSO 🎀

Kernel file ./arch/x86/lib/msr.c — plus these icons: msr_write(9), msr_set_bit(9), and msr_clear_bit(9) 🌈

xoxo, msr_read(9) — chilling in ./arch/x86/lib, dated October 2026 🫶💖