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.

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.