mirror of https://git.proxmox.com/git/fwupd synced 2025-05-09 15:53:00 +00:00

History

Richard Hughes 7d132b728c Simplify the quirk file format The best way of not getting something wrong is to not require it in the first place... All plugins now use DeviceInstanceId-style quirk matches and we can just drop the prefix in all files. We were treating HwId=, Guid= and DeviceInstanceId= in exactly the same way -- they're just converted to GUIDs when building the silo!		2021-03-03 08:30:34 +00:00
..
fu-plugin-tpm.c	Use FWUPD_COMPILATION define to indicate an in tree build	2021-01-22 14:01:25 -06:00
fu-tpm-device.c	Call the superclass directly from subclassed devices	2021-02-18 16:18:34 +00:00
fu-tpm-device.h	Add many new plugins to support for the Host Security ID	2020-05-12 21:20:18 +01:00
meson.build	Move the plugin build logic to the plugins themselves	2021-02-18 14:46:20 +00:00
README.md	Add external interface messages	2020-10-26 12:05:20 -05:00
tpm.quirk	Simplify the quirk file format	2021-03-03 08:30:34 +00:00

README.md

TPM Support

Introduction

This allows enumerating Trusted Platform Modules, also known as "TPM" devices, although it does not allow the user to update the firmware on them.

GUID Generation

These devices use custom GUIDs:

TPM\VEN_$(manufacturer)&DEV_$(type)
TPM\VEN_$(manufacturer)&MOD_$(vendor-string)
TPM\VEN_$(manufacturer)&DEV_$(type)_VER_$(family),
TPM\VEN_$(manufacturer)&MOD_$(vendor-string)_VER_$(family)

...where family is either 2.0 or 1.2

Example GUIDs from a real system containing a TPM from Intel:

  Guid:                 34801700-3a50-5b05-820c-fe14580e4c2d <- TPM\VEN_INTC&DEV_0000
  Guid:                 03f304f4-223e-54f4-b2c1-c3cf3b5817c6 <- TPM\VEN_INTC&DEV_0000&VER_2.0

Vendor ID Security

The device is not upgradable and thus requires no vendor ID set.

External interface access

This plugin uses the tpm2-tss library to access the TPM. It requires access to /sys/class/tpm.