STRUCT AMDTEE_SESSION(9)

💖 struct amdtee_session(9) — Kernel API Manual 💖

🌸 NAME 🌸

struct amdtee_session — Trusted Application (TA) session related information. That's the whole vibe, bestie: it's the struct holding all the TA session tea ☕✨.

✨ SYNOPSIS ✨

       struct amdtee_session {
           struct list_head list_node;
           u32 ta_handle;
           struct kref refcount;
           u32 session_info[TEE_NUM_SESSIONS];
           unsigned long sess_mask[BITS_TO_LONGS( TEE_NUM_SESSIONS)];
           spinlock_t lock;
        };

🫶 Members 🫶

• ta_handle — handle to Trusted Application (TA) loaded in TEE environment. It's giving the TA's little name tag in TEE world 🪪.
• refcount — counter to keep track of sessions opened for the TA instance. Literally keeping count, no cap 🔢.
• session_info — an array pointing to TA allocated session data. Think of it as the stash of session data the TA is pointing at 📦.
• sess_mask — session usage bit-mask. If a particular bit is set, then the corresponding session_info entry is in use or valid. Bit set = that slot is valid, periodt 💅🔥.

🌈 Description 🌈

Session structure is updated on open_session, and this information is used for subsequent operations with the Trusted Application. So open a session, update the struct, then keep that info around for what comes next — iconic bookkeeping energy 📚✨.

Lowkey important: this is the session info the later operations rely on, so don't sleep on it 🫶.

🦋 SEE ALSO 🦋

• Kernel file ./drivers/tee/amdtee/amdtee_private.h
• struct amdtee(9)
• struct amdtee_context_data(9)
• struct amdtee_ta_data(9)
• set_session_id(9)

Cute sign-off: brought to you by the ./drivers/tee/amdtee source, in the Kernel API Manual version, dated October 2026, and it's all about struct amdtee_session(9) 🎀💜