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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# TPM device configuration
4#
5
6menuconfig TCG_TPM
7 tristate "TPM Hardware Support"
8 depends on HAS_IOMEM
9 imply SECURITYFS
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_SPI_CR50
71 bool "Cr50 SPI Interface"
72 depends on TCG_TIS_SPI
73 help
74 If you have a H1 secure module running Cr50 firmware on SPI bus,
75 say Yes and it will be accessible from within Linux.
76
77config TCG_TIS_I2C
78 tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (I2C - generic)"
79 depends on I2C
80 select CRC_CCITT
81 select TCG_TIS_CORE
82 help
83 If you have a TPM security chip, compliant with the TCG TPM PTP
84 (I2C interface) specification and connected to an I2C bus master,
85 say Yes and it will be accessible from within Linux.
86 To compile this driver as a module, choose M here;
87 the module will be called tpm_tis_i2c.
88
89config TCG_TIS_SYNQUACER
90 tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface (MMIO - SynQuacer)"
91 depends on ARCH_SYNQUACER || COMPILE_TEST
92 select TCG_TIS_CORE
93 help
94 If you have a TPM security chip that is compliant with the
95 TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
96 specification (TPM2.0) say Yes and it will be accessible from
97 within Linux on Socionext SynQuacer platform.
98 To compile this driver as a module, choose M here;
99 the module will be called tpm_tis_synquacer.
100
101config TCG_TIS_I2C_CR50
102 tristate "TPM Interface Specification 2.0 Interface (I2C - CR50)"
103 depends on I2C
104 help
105 This is a driver for the Google cr50 I2C TPM interface which is a
106 custom microcontroller and requires a custom i2c protocol interface
107 to handle the limitations of the hardware. To compile this driver
108 as a module, choose M here; the module will be called tcg_tis_i2c_cr50.
109
110config TCG_TIS_I2C_ATMEL
111 tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
112 depends on I2C
113 help
114 If you have an Atmel I2C TPM security chip say Yes and it will be
115 accessible from within Linux.
116 To compile this driver as a module, choose M here; the module will
117 be called tpm_tis_i2c_atmel.
118
119config TCG_TIS_I2C_INFINEON
120 tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
121 depends on I2C
122 help
123 If you have a TPM security chip that is compliant with the
124 TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
125 Specification 0.20 say Yes and it will be accessible from within
126 Linux.
127 To compile this driver as a module, choose M here; the module
128 will be called tpm_i2c_infineon.
129
130config TCG_TIS_I2C_NUVOTON
131 tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
132 depends on I2C
133 help
134 If you have a TPM security chip with an I2C interface from
135 Nuvoton Technology Corp. say Yes and it will be accessible
136 from within Linux.
137 To compile this driver as a module, choose M here; the module
138 will be called tpm_i2c_nuvoton.
139
140config TCG_NSC
141 tristate "National Semiconductor TPM Interface"
142 depends on X86
143 help
144 If you have a TPM security chip from National Semiconductor
145 say Yes and it will be accessible from within Linux. To
146 compile this driver as a module, choose M here; the module
147 will be called tpm_nsc.
148
149config TCG_ATMEL
150 tristate "Atmel TPM Interface"
151 depends on PPC64 || HAS_IOPORT_MAP
152 help
153 If you have a TPM security chip from Atmel say Yes and it
154 will be accessible from within Linux. To compile this driver
155 as a module, choose M here; the module will be called tpm_atmel.
156
157config TCG_INFINEON
158 tristate "Infineon Technologies TPM Interface"
159 depends on PNP
160 help
161 If you have a TPM security chip from Infineon Technologies
162 (either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
163 will be accessible from within Linux.
164 To compile this driver as a module, choose M here; the module
165 will be called tpm_infineon.
166 Further information on this driver and the supported hardware
167 can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
168
169config TCG_IBMVTPM
170 tristate "IBM VTPM Interface"
171 depends on PPC_PSERIES
172 help
173 If you have IBM virtual TPM (VTPM) support say Yes and it
174 will be accessible from within Linux. To compile this driver
175 as a module, choose M here; the module will be called tpm_ibmvtpm.
176
177config TCG_XEN
178 tristate "XEN TPM Interface"
179 depends on TCG_TPM && XEN
180 select XEN_XENBUS_FRONTEND
181 help
182 If you want to make TPM support available to a Xen user domain,
183 say Yes and it will be accessible from within Linux. See
184 the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
185 the Xen source repository for more details.
186 To compile this driver as a module, choose M here; the module
187 will be called xen-tpmfront.
188
189config TCG_CRB
190 tristate "TPM 2.0 CRB Interface"
191 depends on ACPI
192 help
193 If you have a TPM security chip that is compliant with the
194 TCG CRB 2.0 TPM specification say Yes and it will be accessible
195 from within Linux. To compile this driver as a module, choose
196 M here; the module will be called tpm_crb.
197
198config TCG_VTPM_PROXY
199 tristate "VTPM Proxy Interface"
200 depends on TCG_TPM
201 help
202 This driver proxies for an emulated TPM (vTPM) running in userspace.
203 A device /dev/vtpmx is provided that creates a device pair
204 /dev/vtpmX and a server-side file descriptor on which the vTPM
205 can receive commands.
206
207config TCG_FTPM_TEE
208 tristate "TEE based fTPM Interface"
209 depends on TEE && OPTEE
210 help
211 This driver proxies for firmware TPM running in TEE.
212
213source "drivers/char/tpm/st33zp24/Kconfig"
214endif # TCG_TPM
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# TPM device configuration
4#
5
6menuconfig TCG_TPM
7 tristate "TPM Hardware Support"
8 depends on HAS_IOMEM
9 imply SECURITYFS
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_SPI_CR50
71 bool "Cr50 SPI Interface"
72 depends on TCG_TIS_SPI
73 help
74 If you have a H1 secure module running Cr50 firmware on SPI bus,
75 say Yes and it will be accessible from within Linux.
76
77config TCG_TIS_I2C
78 tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (I2C - generic)"
79 depends on I2C
80 select CRC_CCITT
81 select TCG_TIS_CORE
82 help
83 If you have a TPM security chip, compliant with the TCG TPM PTP
84 (I2C interface) specification and connected to an I2C bus master,
85 say Yes and it will be accessible from within Linux.
86 To compile this driver as a module, choose M here;
87 the module will be called tpm_tis_i2c.
88
89config TCG_TIS_SYNQUACER
90 tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface (MMIO - SynQuacer)"
91 depends on ARCH_SYNQUACER || COMPILE_TEST
92 select TCG_TIS_CORE
93 help
94 If you have a TPM security chip that is compliant with the
95 TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
96 specification (TPM2.0) say Yes and it will be accessible from
97 within Linux on Socionext SynQuacer platform.
98 To compile this driver as a module, choose M here;
99 the module will be called tpm_tis_synquacer.
100
101config TCG_TIS_I2C_CR50
102 tristate "TPM Interface Specification 2.0 Interface (I2C - CR50)"
103 depends on I2C
104 help
105 This is a driver for the Google cr50 I2C TPM interface which is a
106 custom microcontroller and requires a custom i2c protocol interface
107 to handle the limitations of the hardware. To compile this driver
108 as a module, choose M here; the module will be called tcg_tis_i2c_cr50.
109
110config TCG_TIS_I2C_ATMEL
111 tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
112 depends on I2C
113 help
114 If you have an Atmel I2C TPM security chip say Yes and it will be
115 accessible from within Linux.
116 To compile this driver as a module, choose M here; the module will
117 be called tpm_tis_i2c_atmel.
118
119config TCG_TIS_I2C_INFINEON
120 tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
121 depends on I2C
122 help
123 If you have a TPM security chip that is compliant with the
124 TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
125 Specification 0.20 say Yes and it will be accessible from within
126 Linux.
127 To compile this driver as a module, choose M here; the module
128 will be called tpm_i2c_infineon.
129
130config TCG_TIS_I2C_NUVOTON
131 tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
132 depends on I2C
133 help
134 If you have a TPM security chip with an I2C interface from
135 Nuvoton Technology Corp. say Yes and it will be accessible
136 from within Linux.
137 To compile this driver as a module, choose M here; the module
138 will be called tpm_i2c_nuvoton.
139
140config TCG_NSC
141 tristate "National Semiconductor TPM Interface"
142 depends on X86
143 help
144 If you have a TPM security chip from National Semiconductor
145 say Yes and it will be accessible from within Linux. To
146 compile this driver as a module, choose M here; the module
147 will be called tpm_nsc.
148
149config TCG_ATMEL
150 tristate "Atmel TPM Interface"
151 depends on PPC64 || HAS_IOPORT_MAP
152 help
153 If you have a TPM security chip from Atmel say Yes and it
154 will be accessible from within Linux. To compile this driver
155 as a module, choose M here; the module will be called tpm_atmel.
156
157config TCG_INFINEON
158 tristate "Infineon Technologies TPM Interface"
159 depends on PNP
160 help
161 If you have a TPM security chip from Infineon Technologies
162 (either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
163 will be accessible from within Linux.
164 To compile this driver as a module, choose M here; the module
165 will be called tpm_infineon.
166 Further information on this driver and the supported hardware
167 can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
168
169config TCG_IBMVTPM
170 tristate "IBM VTPM Interface"
171 depends on PPC_PSERIES
172 help
173 If you have IBM virtual TPM (VTPM) support say Yes and it
174 will be accessible from within Linux. To compile this driver
175 as a module, choose M here; the module will be called tpm_ibmvtpm.
176
177config TCG_XEN
178 tristate "XEN TPM Interface"
179 depends on TCG_TPM && XEN
180 select XEN_XENBUS_FRONTEND
181 help
182 If you want to make TPM support available to a Xen user domain,
183 say Yes and it will be accessible from within Linux. See
184 the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
185 the Xen source repository for more details.
186 To compile this driver as a module, choose M here; the module
187 will be called xen-tpmfront.
188
189config TCG_CRB
190 tristate "TPM 2.0 CRB Interface"
191 depends on ACPI
192 help
193 If you have a TPM security chip that is compliant with the
194 TCG CRB 2.0 TPM specification say Yes and it will be accessible
195 from within Linux. To compile this driver as a module, choose
196 M here; the module will be called tpm_crb.
197
198config TCG_VTPM_PROXY
199 tristate "VTPM Proxy Interface"
200 depends on TCG_TPM
201 help
202 This driver proxies for an emulated TPM (vTPM) running in userspace.
203 A device /dev/vtpmx is provided that creates a device pair
204 /dev/vtpmX and a server-side file descriptor on which the vTPM
205 can receive commands.
206
207config TCG_FTPM_TEE
208 tristate "TEE based fTPM Interface"
209 depends on TEE && OPTEE
210 help
211 This driver proxies for firmware TPM running in TEE.
212
213source "drivers/char/tpm/st33zp24/Kconfig"
214endif # TCG_TPM