76 lines
2.4 KiB
Groff
76 lines
2.4 KiB
Groff
.\" $NetBSD: tpm.4,v 1.7 2021/01/19 05:05:39 riastradh Exp $
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.\"
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.\" Copyright (c) 2019 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Maxime Villard.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd January 15, 2021
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.Dt TPM 4
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.Os
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.Sh NAME
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.Nm tpm
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.Nd Trusted Platform Module
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.Sh SYNOPSIS
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.Cd "tpm* at isa? iomem 0xfed40000"
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.Cd "tpm* at acpi?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for various Trusted Platform Module (TPM) chips.
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.Pp
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Supported modules:
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.Pp
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.Bl -bullet -compact -offset indent
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.It
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TPM 2.0 chips over ACPI
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.It
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TPM 1.2 chips over ACPI and ISA
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.El
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.Pp
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Note that the supported interface version is TIS1.2 in each case.
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.Pp
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The TPM may need to be enabled in the system's firmware or BIOS, which
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requires a reboot to take effect.
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This is generally beyond the control of
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.Nx .
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Enabling a TPM does not require using trusted boot \(em it can be
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enabled, for example, only for the
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.Xr rnd 4
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entropy source.
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.Sh SEE ALSO
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.Xr config 1 ,
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.Xr intro 4 ,
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.Xr rnd 4
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Maxime Villard ,
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.An Michael Shalayeff
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and
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.An Hans-Joerg Hoexer .
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