#
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# TPM device configuration
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#
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menuconfig TCG_TPM
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tristate "TPM Hardware Support"
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depends on HAS_IOMEM
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select SECURITYFS
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select CRYPTO
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select CRYPTO_HASH_INFO
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---help---
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If you have a TPM security chip in your system, which
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implements the Trusted Computing Group's specification,
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say Yes and it will be accessible from within Linux. For
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more information see <http://www.trustedcomputinggroup.org>.
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An implementation of the Trusted Software Stack (TSS), the
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userspace enablement piece of the specification, can be
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obtained at: <http://sourceforge.net/projects/trousers>. To
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compile this driver as a module, choose M here; the module
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will be called tpm. If unsure, say N.
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Notes:
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1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
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and CONFIG_PNPACPI.
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2) Without ACPI enabled, the BIOS event log won't be accessible,
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which is required to validate the PCR 0-7 values.
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if TCG_TPM
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config HW_RANDOM_TPM
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bool "TPM HW Random Number Generator support"
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depends on TCG_TPM && HW_RANDOM && !(TCG_TPM=y && HW_RANDOM=m)
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default y
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---help---
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This setting exposes the TPM's Random Number Generator as a hwrng
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device. This allows the kernel to collect randomness from the TPM at
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boot, and provides the TPM randomines in /dev/hwrng.
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If unsure, say Y.
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config TCG_TIS_CORE
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tristate
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---help---
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TCG TIS TPM core driver. It implements the TPM TCG TIS logic and hooks
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into the TPM kernel APIs. Physical layers will register against it.
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config TCG_TIS
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tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface"
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depends on X86 || OF
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select TCG_TIS_CORE
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---help---
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If you have a TPM security chip that is compliant with the
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TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
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specification (TPM2.0) say Yes and it will be accessible from
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within Linux. To compile this driver as a module, choose M here;
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the module will be called tpm_tis.
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config TCG_TIS_SPI
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tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (SPI)"
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depends on SPI
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select TCG_TIS_CORE
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---help---
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If you have a TPM security chip which is connected to a regular,
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non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
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TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
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specification (TPM2.0) say Yes and it will be accessible from
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within Linux. To compile this driver as a module, choose M here;
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the module will be called tpm_tis_spi.
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config TCG_TIS_I2C_ATMEL
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tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
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depends on I2C
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---help---
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If you have an Atmel I2C TPM security chip say Yes and it will be
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accessible from within Linux.
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To compile this driver as a module, choose M here; the module will
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be called tpm_tis_i2c_atmel.
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config TCG_TIS_I2C_INFINEON
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tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
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depends on I2C
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---help---
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If you have a TPM security chip that is compliant with the
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TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
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Specification 0.20 say Yes and it will be accessible from within
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Linux.
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To compile this driver as a module, choose M here; the module
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will be called tpm_i2c_infineon.
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config TCG_TIS_I2C_NUVOTON
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tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
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depends on I2C
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---help---
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If you have a TPM security chip with an I2C interface from
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Nuvoton Technology Corp. say Yes and it will be accessible
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from within Linux.
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To compile this driver as a module, choose M here; the module
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will be called tpm_i2c_nuvoton.
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config TCG_NSC
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tristate "National Semiconductor TPM Interface"
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depends on X86
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---help---
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If you have a TPM security chip from National Semiconductor
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say Yes and it will be accessible from within Linux. To
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compile this driver as a module, choose M here; the module
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will be called tpm_nsc.
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config TCG_ATMEL
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tristate "Atmel TPM Interface"
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depends on PPC64 || HAS_IOPORT_MAP
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---help---
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If you have a TPM security chip from Atmel say Yes and it
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will be accessible from within Linux. To compile this driver
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as a module, choose M here; the module will be called tpm_atmel.
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config TCG_INFINEON
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tristate "Infineon Technologies TPM Interface"
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depends on PNP
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---help---
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If you have a TPM security chip from Infineon Technologies
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(either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
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will be accessible from within Linux.
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To compile this driver as a module, choose M here; the module
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will be called tpm_infineon.
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Further information on this driver and the supported hardware
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can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
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config TCG_IBMVTPM
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tristate "IBM VTPM Interface"
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depends on PPC_PSERIES
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---help---
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If you have IBM virtual TPM (VTPM) support say Yes and it
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will be accessible from within Linux. To compile this driver
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as a module, choose M here; the module will be called tpm_ibmvtpm.
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config TCG_XEN
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tristate "XEN TPM Interface"
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depends on TCG_TPM && XEN
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select XEN_XENBUS_FRONTEND
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---help---
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If you want to make TPM support available to a Xen user domain,
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say Yes and it will be accessible from within Linux. See
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the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
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the Xen source repository for more details.
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To compile this driver as a module, choose M here; the module
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will be called xen-tpmfront.
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config TCG_CRB
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tristate "TPM 2.0 CRB Interface"
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depends on ACPI
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---help---
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If you have a TPM security chip that is compliant with the
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TCG CRB 2.0 TPM specification say Yes and it will be accessible
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from within Linux. To compile this driver as a module, choose
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M here; the module will be called tpm_crb.
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config TCG_VTPM_PROXY
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tristate "VTPM Proxy Interface"
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depends on TCG_TPM
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---help---
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This driver proxies for an emulated TPM (vTPM) running in userspace.
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A device /dev/vtpmx is provided that creates a device pair
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/dev/vtpmX and a server-side file descriptor on which the vTPM
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can receive commands.
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source "drivers/char/tpm/st33zp24/Kconfig"
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endif # TCG_TPM
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