sbi_probe_extension(9)

🌸 NAME 🌸

okay so bestie, this page is sbi_probe_extension(9) from the Kernel API Manual — and it's literally here to check if an SBI extension ID is supported or not. That's the whole vibe. 💅

✨ SYNOPSIS ✨

long sbi_probe_extension (int extid );

🎀 ARGUMENTS 🎀

• extid — the extension ID to be probed 👀 that's the one you're checking on, bestie.

🦋 RETURN 🦋

So what comes back? 1 or an extension specific nonzero value if yes, and 0 otherwise. periodt. no cap.

🌈 SEE ALSO 🌈

Kernel file: ./arch/riscv/kernel/sbi.c 👑

• sbi_console_putchar(9)
• sbi_console_getchar(9)
• sbi_shutdown(9)
• __sbi_set_timer_v01(9)
• sbi_fwft_set(9)
• sbi_fwft_set_cpumask(9)
• sbi_set_timer(9)
• sbi_send_ipi(9)
• sbi_remote_fence_i(9)
• sbi_remote_sfence_vma_asid(9)
• sbi_remote_hfence_gvma(9)
• sbi_remote_hfence_gvma_vmid(9)
• sbi_remote_hfence_vvma(9)
• sbi_remote_hfence_vvma_asid(9)

cute little sign-off bestie: this page lives under source/version ./arch/riscv/kernel, dated October 2026, and it's still your girl sbi_probe_extension(9) 💖✨🎀