Reference

tpm(4freebsd)

Trusted Platform Module

NAME

tpm – Trusted Platform Module

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:

device tpm

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

tpm_load="YES"

In /boot/device.hints: hint.tpm.0.at="isa" hint.tpm.0.maddr="0xfed40000" hint.tpm.0.msize="0x5000" hint.tpm.1.at="isa" hint.tpm.1.maddr="0xfed40000" hint.tpm.1.msize="0x1000"

DESCRIPTION

The tpm driver provides support for various trusted platform modules (TPM) that can store cryptographic keys.

Supported modules:

  • Atmel 97SC3203

  • Broadcom BCM0102

  • Infineon IFX SLD 9630 TT 1.1 and IFX SLB 9635 TT 1.2

  • Intel INTC0102

  • Sinosun SNS SSX35

  • STM ST19WP18

  • Winbond WEC WPCT200

The driver can be configured to use an IRQ by providing a free ISA interrupt vector in /boot/device.hints.

SEE ALSO

intro(4), device.hints(5), config(8)

The homepage of the BSSSD project, which developed the original tpm driver: http://bsssd.sourceforge.net/.

TPM main specification can be found at: https://trustedcomputinggroup.org/resource/tpm-main-specification/.

STANDARDS

TPM Main Specification Level 2 Version 1.2:

  • ISO/IEC, 11889-1:2009, Information technology -- Trusted Platform Module -- Part 1: Overview, https://www.iso.org/standard/50970.html.

  • ISO/IEC, 11889-2:2009, Information technology -- Trusted Platform Module -- Part 2: Design principles, https://www.iso.org/standard/50971.html.

  • ISO/IEC, 11889-3:2009, Information technology -- Trusted Platform Module -- Part 3: Structures, https://www.iso.org/standard/50972.html.

HISTORY

The tpm driver first appeared in FreeBSD 8.2 and was later added to OpenBSD 6.1.

AUTHORS

The tpm driver was written by Michael Shalayeff and Hans-Joerg Hoexer.

History