STRUCT PCI_TSM(9)

✨ NAME ✨

struct pci_tsm — the core TSM context for a given PCIe endpoint. This is the struct pci_tsm(9) page from the Kernel API Manual, and bestie, it's literally the vibe check for one endpoint's TSM world. Slay. 💖

📦 SYNOPSIS 📦

Here's the whole struct, copied exactly so you can trust it fr fr:

       struct pci_tsm {
           struct pci_dev *pdev;
           struct pci_dev *dsm_dev;
           struct tsm_dev *tsm_dev;
           struct pci_tdi *tdi;
        };

🧩 Members 🧩

• pdev — back ref to the device function; it distinguishes the type of pci_tsm context. 👑
• dsm_dev — the PCI Device Security Manager for link operations on pdev. 💅
• tsm_dev — the PCI TEE Security Manager device for Link Confidentiality or Device Function Security operations. 🔥
• tdi — the TDI context established by the bind link operation. 🦋

💖 Description 💖

Okay so this structure is wrapped by low level TSM driver data and returned by probe/lock; it is freed by the corresponding remove/unlock. Periodt. 🫶

For link operations, it serves to cache the association between a Device Security Manager (DSM) and the functions that manager can assign to a TVM. That can be "self", for assigning function0 of a TEE I/O device, a sub-function (SR-IOV virtual function, or non-function0 multifunction-device), or a downstream endpoint (PCIe upstream switch-port as DSM). No cap, that's the whole link-up lore. 🌈

👀 SEE ALSO 👀

• Kernel file ./include/linux/pci-tsm.h
• struct pci_tdi(9)
• struct pci_tsm_pf0(9)
• enum pci_tsm_req_scope(9)

Source/version: ./include/linux · Date: October 2026 · page: struct pci_tsm(9) 💖 xoxo, bestie.