1 # SPDX-License-Identifier: GPL-2.0-only
3 # TPM device configuration
7 tristate "TPM Hardware Support"
11 select CRYPTO_HASH_INFO
13 If you have a TPM security chip in your system, which
14 implements the Trusted Computing Group's specification,
15 say Yes and it will be accessible from within Linux. For
16 more information see <http://www.trustedcomputinggroup.org>.
17 An implementation of the Trusted Software Stack (TSS), the
18 userspace enablement piece of the specification, can be
19 obtained at: <http://sourceforge.net/projects/trousers>. To
20 compile this driver as a module, choose M here; the module
21 will be called tpm. If unsure, say N.
23 1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
25 2) Without ACPI enabled, the BIOS event log won't be accessible,
26 which is required to validate the PCR 0-7 values.
31 bool "TPM HW Random Number Generator support"
32 depends on TCG_TPM && HW_RANDOM && !(TCG_TPM=y && HW_RANDOM=m)
35 This setting exposes the TPM's Random Number Generator as a hwrng
36 device. This allows the kernel to collect randomness from the TPM at
37 boot, and provides the TPM randomines in /dev/hwrng.
44 TCG TIS TPM core driver. It implements the TPM TCG TIS logic and hooks
45 into the TPM kernel APIs. Physical layers will register against it.
48 tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface"
52 If you have a TPM security chip that is compliant with the
53 TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
54 specification (TPM2.0) say Yes and it will be accessible from
55 within Linux. To compile this driver as a module, choose M here;
56 the module will be called tpm_tis.
59 tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (SPI)"
63 If you have a TPM security chip which is connected to a regular,
64 non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
65 TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
66 specification (TPM2.0) say Yes and it will be accessible from
67 within Linux. To compile this driver as a module, choose M here;
68 the module will be called tpm_tis_spi.
70 config TCG_TIS_I2C_ATMEL
71 tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
74 If you have an Atmel I2C TPM security chip say Yes and it will be
75 accessible from within Linux.
76 To compile this driver as a module, choose M here; the module will
77 be called tpm_tis_i2c_atmel.
79 config TCG_TIS_I2C_INFINEON
80 tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
83 If you have a TPM security chip that is compliant with the
84 TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
85 Specification 0.20 say Yes and it will be accessible from within
87 To compile this driver as a module, choose M here; the module
88 will be called tpm_i2c_infineon.
90 config TCG_TIS_I2C_NUVOTON
91 tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
94 If you have a TPM security chip with an I2C interface from
95 Nuvoton Technology Corp. say Yes and it will be accessible
97 To compile this driver as a module, choose M here; the module
98 will be called tpm_i2c_nuvoton.
101 tristate "National Semiconductor TPM Interface"
104 If you have a TPM security chip from National Semiconductor
105 say Yes and it will be accessible from within Linux. To
106 compile this driver as a module, choose M here; the module
107 will be called tpm_nsc.
110 tristate "Atmel TPM Interface"
111 depends on PPC64 || HAS_IOPORT_MAP
113 If you have a TPM security chip from Atmel say Yes and it
114 will be accessible from within Linux. To compile this driver
115 as a module, choose M here; the module will be called tpm_atmel.
118 tristate "Infineon Technologies TPM Interface"
121 If you have a TPM security chip from Infineon Technologies
122 (either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
123 will be accessible from within Linux.
124 To compile this driver as a module, choose M here; the module
125 will be called tpm_infineon.
126 Further information on this driver and the supported hardware
127 can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
130 tristate "IBM VTPM Interface"
131 depends on PPC_PSERIES
133 If you have IBM virtual TPM (VTPM) support say Yes and it
134 will be accessible from within Linux. To compile this driver
135 as a module, choose M here; the module will be called tpm_ibmvtpm.
138 tristate "XEN TPM Interface"
139 depends on TCG_TPM && XEN
140 select XEN_XENBUS_FRONTEND
142 If you want to make TPM support available to a Xen user domain,
143 say Yes and it will be accessible from within Linux. See
144 the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
145 the Xen source repository for more details.
146 To compile this driver as a module, choose M here; the module
147 will be called xen-tpmfront.
150 tristate "TPM 2.0 CRB Interface"
153 If you have a TPM security chip that is compliant with the
154 TCG CRB 2.0 TPM specification say Yes and it will be accessible
155 from within Linux. To compile this driver as a module, choose
156 M here; the module will be called tpm_crb.
158 config TCG_VTPM_PROXY
159 tristate "VTPM Proxy Interface"
162 This driver proxies for an emulated TPM (vTPM) running in userspace.
163 A device /dev/vtpmx is provided that creates a device pair
164 /dev/vtpmX and a server-side file descriptor on which the vTPM
165 can receive commands.
168 source "drivers/char/tpm/st33zp24/Kconfig"