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fwupd/plugins/tpm
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Mario Limonciello 75835b4a0b Use FWUPD_COMPILATION define to indicate an in tree build 
When this is done, include:
* Including the hash
* Including anything that is not ABI stable in plugins yet

Suggested-by: Simon McVittie <smcv@debian.org>
2021-01-22 14:01:25 -06:00
..
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 Allow specifying more than one VendorID for a device 2021-01-04 22:30:20 +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 Add a new plugin that exposes the system TPM device firmware version 2019-12-05 21:05:17 +00:00
README.md Add external interface messages 2020-10-26 12:05:20 -05:00
tpm.quirk Add a new plugin that exposes the system TPM device firmware version 2019-12-05 21:05:17 +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.