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- #
- # TPM subsystem configuration
- #
- menu "TPM support"
- config TPM_V1
- bool "TPMv1.x support"
- depends on TPM
- default y
- help
- Major TPM versions are not compatible at all, choose either
- one or the other. This option enables TPMv1.x drivers/commands.
- if TPM_V1
- config TPM_TIS_SANDBOX
- bool "Enable sandbox TPM driver"
- depends on TPM_V1 && SANDBOX
- default y
- help
- This driver emulates a TPMv1.x, providing access to base functions
- such as reading and writing TPM private data. This is enough to
- support Chrome OS verified boot. Extend functionality is not
- implemented.
- config TPM_ATMEL_TWI
- bool "Enable Atmel TWI TPM device driver"
- depends on TPM_V1
- help
- This driver supports an Atmel TPM device connected on the I2C bus.
- The usual tpm operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol
- config TPM_TIS_INFINEON
- bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
- depends on TPM_V1 && DM_I2C
- help
- This driver supports Infineon TPM devices connected on the I2C bus.
- The usual tpm operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol
- config TPM_TIS_I2C_BURST_LIMITATION
- bool "Enable I2C burst length limitation"
- depends on TPM_TIS_INFINEON
- help
- Some broken TPMs have a limitation on the number of bytes they can
- receive in one message. Enable this option to allow you to set this
- option. The can allow a broken TPM to be used by splitting messages
- into separate pieces.
- config TPM_TIS_I2C_BURST_LIMITATION_LEN
- int "Length"
- depends on TPM_TIS_I2C_BURST_LIMITATION
- help
- Use this to set the burst limitation length
- config TPM_TIS_LPC
- bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
- depends on TPM_V1 && X86
- help
- This driver supports Infineon TPM devices connected on the LPC bus.
- The usual tpm operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol
- config TPM_AUTH_SESSIONS
- bool "Enable TPM authentication session support"
- depends on TPM_V1
- help
- Enable support for authorised (AUTH1) commands as specified in the
- TCG Main Specification 1.2. OIAP-authorised versions of the commands
- TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are
- available using the 'tpm' command, too.
- config TPM_ST33ZP24_I2C
- bool "STMicroelectronics ST33ZP24 I2C TPM"
- depends on TPM_V1 && DM_I2C
- ---help---
- This driver supports STMicroelectronics TPM devices connected on the I2C bus.
- The usual tpm operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol
- config TPM_ST33ZP24_SPI
- bool "STMicroelectronics ST33ZP24 SPI TPM"
- depends on TPM_V1 && DM_SPI
- ---help---
- This driver supports STMicroelectronics TPM devices connected on the SPI bus.
- The usual tpm operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol
- config TPM_FLUSH_RESOURCES
- bool "Enable TPM resource flushing support"
- depends on TPM_V1
- help
- Enable support to flush specific resources (e.g. keys) from the TPM.
- The functionality is available via the 'tpm' command as well.
- config TPM_LOAD_KEY_BY_SHA1
- bool "Enable TPM key loading by SHA1 support"
- depends on TPM_V1
- help
- Enable support to load keys into the TPM by identifying
- their parent via the public key's SHA1 hash.
- The functionality is available via the 'tpm' command as well.
- config TPM_LIST_RESOURCES
- bool "Enable TPM resource listing support"
- depends on TPM_V1
- help
- Enable support to list specific resources (e.g. keys) within the TPM.
- The functionality is available via the 'tpm' command as well.
- endif # TPM_V1
- config TPM_V2
- bool "TPMv2.x support"
- depends on TPM
- default y
- help
- Major TPM versions are not compatible at all, choose either
- one or the other. This option enables TPMv2.x drivers/commands.
- if TPM_V2
- config TPM2_CR50_I2C
- bool "Enable support for Google cr50 TPM"
- depends on DM_I2C
- help
- Cr50 is an implementation of a TPM on Google's H1 security chip.
- This uses the same open-source firmware as the Chromium OS EC.
- While Cr50 has other features, its primary role is as the root of
- trust for a device, It operates like a TPM and can be used with
- verified boot. Cr50 is used on recent Chromebooks (since 2017).
- config TPM2_TIS_SANDBOX
- bool "Enable sandbox TPMv2.x driver"
- depends on TPM_V2 && SANDBOX
- default y
- help
- This driver emulates a TPMv2.x, providing access to base functions
- such as basic configuration, PCR extension and PCR read. Extended
- functionalities are not implemented.
- config TPM2_TIS_SPI
- bool "Enable support for TPMv2.x SPI chips"
- depends on TPM_V2 && DM_SPI
- help
- This driver supports TPMv2.x devices connected on the SPI bus.
- The usual TPM operations and the 'tpm' command can be used to talk
- to the device using the standard TPM Interface Specification (TIS)
- protocol.
- config TPM2_FTPM_TEE
- bool "TEE based fTPM Interface"
- depends on TEE && OPTEE && TPM_V2
- help
- This driver supports firmware TPM running in TEE.
- endif # TPM_V2
- endmenu
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