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review.trustedfirmware.org / hafnium / third_party / linux.git / 3a0ad55d848b50499b68d7141d4eca997fce28ef / . / drivers / char / tpm / Kconfig
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Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1#
2# TPM device configuration
3#
4
5menuconfig TCG_TPM
6 tristate "TPM Hardware Support"
7 depends on HAS_IOMEM
8 select SECURITYFS
9 select CRYPTO
10 select CRYPTO_HASH_INFO
11 ---help---
12 If you have a TPM security chip in your system, which
13 implements the Trusted Computing Group's specification,
14 say Yes and it will be accessible from within Linux. For
15 more information see <http://www.trustedcomputinggroup.org>.
16 An implementation of the Trusted Software Stack (TSS), the
17 userspace enablement piece of the specification, can be
18 obtained at: <http://sourceforge.net/projects/trousers>. To
19 compile this driver as a module, choose M here; the module
20 will be called tpm. If unsure, say N.
21 Notes:
22 1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
23 and CONFIG_PNPACPI.
24 2) Without ACPI enabled, the BIOS event log won't be accessible,
25 which is required to validate the PCR 0-7 values.
26
27if TCG_TPM
28
29config HW_RANDOM_TPM
30 bool "TPM HW Random Number Generator support"
31 depends on TCG_TPM && HW_RANDOM && !(TCG_TPM=y && HW_RANDOM=m)
32 default y
33 ---help---
34 This setting exposes the TPM's Random Number Generator as a hwrng
35 device. This allows the kernel to collect randomness from the TPM at
36 boot, and provides the TPM randomines in /dev/hwrng.
37
38 If unsure, say Y.
39
40config TCG_TIS_CORE
41 tristate
42 ---help---
43 TCG TIS TPM core driver. It implements the TPM TCG TIS logic and hooks
44 into the TPM kernel APIs. Physical layers will register against it.
45
46config TCG_TIS
47 tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface"
48 depends on X86 || OF
49 select TCG_TIS_CORE
50 ---help---
51 If you have a TPM security chip that is compliant with the
52 TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
53 specification (TPM2.0) say Yes and it will be accessible from
54 within Linux. To compile this driver as a module, choose M here;
55 the module will be called tpm_tis.
56
57config TCG_TIS_SPI
58 tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (SPI)"
59 depends on SPI
60 select TCG_TIS_CORE
61 ---help---
62 If you have a TPM security chip which is connected to a regular,
63 non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
64 TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
65 specification (TPM2.0) say Yes and it will be accessible from
66 within Linux. To compile this driver as a module, choose M here;
67 the module will be called tpm_tis_spi.
68
69config TCG_TIS_I2C_ATMEL
70 tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
71 depends on I2C
72 ---help---
73 If you have an Atmel I2C TPM security chip say Yes and it will be
74 accessible from within Linux.
75 To compile this driver as a module, choose M here; the module will
76 be called tpm_tis_i2c_atmel.
77
78config TCG_TIS_I2C_INFINEON
79 tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
80 depends on I2C
81 ---help---
82 If you have a TPM security chip that is compliant with the
83 TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
84 Specification 0.20 say Yes and it will be accessible from within
85 Linux.
86 To compile this driver as a module, choose M here; the module
87 will be called tpm_i2c_infineon.
88
89config TCG_TIS_I2C_NUVOTON
90 tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
91 depends on I2C
92 ---help---
93 If you have a TPM security chip with an I2C interface from
94 Nuvoton Technology Corp. say Yes and it will be accessible
95 from within Linux.
96 To compile this driver as a module, choose M here; the module
97 will be called tpm_i2c_nuvoton.
98
99config TCG_NSC
100 tristate "National Semiconductor TPM Interface"
101 depends on X86
102 ---help---
103 If you have a TPM security chip from National Semiconductor
104 say Yes and it will be accessible from within Linux. To
105 compile this driver as a module, choose M here; the module
106 will be called tpm_nsc.
107
108config TCG_ATMEL
109 tristate "Atmel TPM Interface"
110 depends on PPC64 || HAS_IOPORT_MAP
111 ---help---
112 If you have a TPM security chip from Atmel say Yes and it
113 will be accessible from within Linux. To compile this driver
114 as a module, choose M here; the module will be called tpm_atmel.
115
116config TCG_INFINEON
117 tristate "Infineon Technologies TPM Interface"
118 depends on PNP
119 ---help---
120 If you have a TPM security chip from Infineon Technologies
121 (either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
122 will be accessible from within Linux.
123 To compile this driver as a module, choose M here; the module
124 will be called tpm_infineon.
125 Further information on this driver and the supported hardware
126 can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
127
128config TCG_IBMVTPM
129 tristate "IBM VTPM Interface"
130 depends on PPC_PSERIES
131 ---help---
132 If you have IBM virtual TPM (VTPM) support say Yes and it
133 will be accessible from within Linux. To compile this driver
134 as a module, choose M here; the module will be called tpm_ibmvtpm.
135
136config TCG_XEN
137 tristate "XEN TPM Interface"
138 depends on TCG_TPM && XEN
139 select XEN_XENBUS_FRONTEND
140 ---help---
141 If you want to make TPM support available to a Xen user domain,
142 say Yes and it will be accessible from within Linux. See
143 the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
144 the Xen source repository for more details.
145 To compile this driver as a module, choose M here; the module
146 will be called xen-tpmfront.
147
148config TCG_CRB
149 tristate "TPM 2.0 CRB Interface"
150 depends on ACPI
151 ---help---
152 If you have a TPM security chip that is compliant with the
153 TCG CRB 2.0 TPM specification say Yes and it will be accessible
154 from within Linux. To compile this driver as a module, choose
155 M here; the module will be called tpm_crb.
156
157config TCG_VTPM_PROXY
158 tristate "VTPM Proxy Interface"
159 depends on TCG_TPM
160 select ANON_INODES
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
167
168source "drivers/char/tpm/st33zp24/Kconfig"
169endif # TCG_TPM