| # | |
| # 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 SPL_TPM2_CR50_I2C | |
| bool "Enable support for Google cr50 TPM" | |
| depends on DM_I2C && SPL_TPM | |
| 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 TPL_TPM2_CR50_I2C | |
| bool "Enable support for Google cr50 TPM" | |
| depends on DM_I2C && TPL_TPM | |
| 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 VPL_TPM2_CR50_I2C | |
| bool "Enable support for Google cr50 TPM" | |
| depends on DM_I2C && VPL_TPM | |
| 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_TIS_I2C | |
| bool "Enable support for TPMv2.x I2C chips" | |
| depends on TPM_V2 && DM_I2C | |
| help | |
| This driver supports TPMv2.x 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 TPM2_FTPM_TEE | |
| bool "TEE based fTPM Interface" | |
| depends on TEE && OPTEE && TPM_V2 | |
| help | |
| This driver supports firmware TPM running in TEE. | |
| config TPM2_MMIO | |
| bool "MMIO based TPM2 Interface" | |
| depends on TPM_V2 | |
| help | |
| This driver supports firmware TPM2.0 MMIO interface. | |
| The usual TPM operations and the 'tpm' command can be used to talk | |
| to the device using the standard TPM Interface Specification (TIS) | |
| protocol. | |
| endif # TPM_V2 | |
| endmenu |