x86_clear_cpu_buffers(9)

🌸 NAME 🌸

Okay bestie, welcome to the x86_clear_cpu_buffers(9) page from the Kernel API Manual ✨ — this one is all about buffer clearing support for different x86 CPU vulns. 💅

✨ SYNOPSIS ✨

void x86_clear_cpu_buffers (void );

🎀 ARGUMENTS 🎀

• void — no arguments. Not a single one, bestie. 💅

🦋 DESCRIPTION 🦋

So here’s the vibe: this uses the otherwise unused and obsolete VERW instruction, in combination with microcode which triggers a CPU buffer flush when the instruction is executed. That’s the whole flex, and it ate. 🔥

👑 SEE ALSO 👑

• Kernel file ./arch/x86/include/asm/nospec-branch.h
• x86_idle_clear_cpu_buffers(9)

Catch you later, bestie 💖 — this page comes from ./arch/x86/include/asm, dated October 2026.