snp_svsm_vtpm_probe(9)

okay so bestie, you're looking at snp_svsm_vtpm_probe(9) from the Kernel API Manual 💖 and it's giving “do we have a vTPM situation?” energy. lowkey tiny function, highkey important. ✨

🎀 NAME 🎀

snp_svsm_vtpm_probe — Probe if SVSM provides a vTPM device 🦋

✨ SYNOPSIS ✨

bool snp_svsm_vtpm_probe (void );

that's the whole signature, no cap 💅

🌸 ARGUMENTS 🌸

• void — no arguments. none. zero. a whole lotta nothing, and honestly? iconic. 🫶

💖 DESCRIPTION 💖

okay so this function does a little vibe check: it checks that there is an SVSM, and that it supports at least TPM_SEND_COMMAND, which is the only request used so far. iykyk 🔥

👑 RETURN 👑

it returns true if the platform provides a vTPM SVSM device, and false otherwise. periodt. ✨

🧚 SEE ALSO 🧚

• Kernel file ./arch/x86/coco/sev/svsm.c — and also snp_svsm_vtpm_send_command(9), go look respectfully 💜

shoutout to source/version ./arch/x86/coco/sev and the date October 2026 — this page said what it said and it ate 🌈🍓