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review.trustedfirmware.org / hafnium / third_party / linux.git / 0f672f6c0b52b7b0700b0915c72b540721af4465 / . / drivers / char / tpm / Kconfig
blob: 9c37047f4b5625b8ea3fd5b3b93796729d1b4bdc [file] [log] [blame]
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]1# SPDX-License-Identifier: GPL-2.0-only
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]2#
3# TPM device configuration
4#
5
6menuconfig TCG_TPM
7 tristate "TPM Hardware Support"
8 depends on HAS_IOMEM
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]9 imply SECURITYFS
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]10 select CRYPTO
11 select CRYPTO_HASH_INFO
12 ---help---
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.
22 Notes:
23 1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
24 and CONFIG_PNPACPI.
25 2) Without ACPI enabled, the BIOS event log won't be accessible,
26 which is required to validate the PCR 0-7 values.
27
28if TCG_TPM
29
30config HW_RANDOM_TPM
31 bool "TPM HW Random Number Generator support"
32 depends on TCG_TPM && HW_RANDOM && !(TCG_TPM=y && HW_RANDOM=m)
33 default y
34 ---help---
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.
38
39 If unsure, say Y.
40
41config TCG_TIS_CORE
42 tristate
43 ---help---
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.
46
47config TCG_TIS
48 tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface"
49 depends on X86 || OF
50 select TCG_TIS_CORE
51 ---help---
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.
57
58config TCG_TIS_SPI
59 tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (SPI)"
60 depends on SPI
61 select TCG_TIS_CORE
62 ---help---
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.
69
70config TCG_TIS_I2C_ATMEL
71 tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
72 depends on I2C
73 ---help---
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.
78
79config TCG_TIS_I2C_INFINEON
80 tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
81 depends on I2C
82 ---help---
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
86 Linux.
87 To compile this driver as a module, choose M here; the module
88 will be called tpm_i2c_infineon.
89
90config TCG_TIS_I2C_NUVOTON
91 tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
92 depends on I2C
93 ---help---
94 If you have a TPM security chip with an I2C interface from
95 Nuvoton Technology Corp. say Yes and it will be accessible
96 from within Linux.
97 To compile this driver as a module, choose M here; the module
98 will be called tpm_i2c_nuvoton.
99
100config TCG_NSC
101 tristate "National Semiconductor TPM Interface"
102 depends on X86
103 ---help---
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.
108
109config TCG_ATMEL
110 tristate "Atmel TPM Interface"
111 depends on PPC64 || HAS_IOPORT_MAP
112 ---help---
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.
116
117config TCG_INFINEON
118 tristate "Infineon Technologies TPM Interface"
119 depends on PNP
120 ---help---
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/
128
129config TCG_IBMVTPM
130 tristate "IBM VTPM Interface"
131 depends on PPC_PSERIES
132 ---help---
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.
136
137config TCG_XEN
138 tristate "XEN TPM Interface"
139 depends on TCG_TPM && XEN
140 select XEN_XENBUS_FRONTEND
141 ---help---
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.
148
149config TCG_CRB
150 tristate "TPM 2.0 CRB Interface"
151 depends on ACPI
152 ---help---
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.
157
158config TCG_VTPM_PROXY
159 tristate "VTPM Proxy Interface"
160 depends on TCG_TPM
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]161 ---help---
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.
166
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]167config TCG_FTPM_TEE
168 tristate "TEE based fTPM Interface"
169 depends on TEE && OPTEE
170 help
171 This driver proxies for firmware TPM running in TEE.
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]172
173source "drivers/char/tpm/st33zp24/Kconfig"
174endif # TCG_TPM