sbi_remote_sfence_vma_asid(9)

📦 version 7.3.1, in nixpkgs unstable

✨ sbi_remote_sfence_vma_asid(9) ✨

okay so bestie, we're in the Kernel API Manual today and this one is a whole vibe. it's the sbi_remote_sfence_vma_asid page and honestly? it's giving "tell your friends to clean their rooms, but specifically." 💅

🌸 NAME 🌸

sbi_remote_sfence_vma_asid — Execute SFENCE.VMA instructions on given remote harts for a virtual address range belonging to a specific ASID or not.

like, you're the manager fr fr. you point at some harts and you're like "y'all. flush that TLB range for this ASID. now." 🫶

🎀 SYNOPSIS 🎀

int sbi_remote_sfence_vma_asid (const struct cpumask *cpu_mask ,
unsigned long start , unsigned long size , unsigned long asid );

returns an int, takes four args, no cap. ✨

🦋 ARGUMENTS 🦋

  • cpu_mask — A cpu mask containing all the target harts. this is your group chat of harts who are getting the message 💌
  • start — Start of the virtual address. where the range begins, bestie 📍
  • size — Total size of the virtual address range. how much of it we're talking about 🌈
  • asid — The value of address space identifier (ASID), or FLUSH_TLB_NO_ASID for flushing all address spaces. so you can be all "just this one ASID pls" or "actually flush everything" — icon behavior either way 👑

💖 RETURN 💖

0 on success, appropriate linux error code otherwise.

so like, 0 is the slay, anything else is the "it's not you it's the error code" 😭

🧚 SEE ALSO 🧚

Kernel file ./arch/riscv/kernel/sbi.c — and also these absolute legends, go read them, iykyk:

ngl there's no BUGS section here, so we're just out here living our best documented life 🌸

and that's the page, bestie! 💜 this little gem lives down in ./arch/riscv/kernel and it was dated October 2026 — go off, calendar icon 🗓️✨ slay, and remember: flush responsibly 🫶🔥

📦 where this page comes from