39d6927609
Implement the ACPI PPI interface as described in "TCG PC Client Physical Presence Interface Specification" Version 1.3. Add a new Kconfig that allows to use the full PPI instead of the stub version compiled in. This doesn't add code to execute the PPI request, as that's up to the payload with graphical UI support. Tested on GNU/Linux 5.6 using the sysfs interface at: /sys/class/tpm/tpm0/ppi/ Change-Id: Ifffe1d9b715e2c37568e1b009e86c298025c89ac Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45568 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
18 lines
602 B
Text
18 lines
602 B
Text
config TPM_INIT
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bool
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default y if TPM1 || TPM2
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depends on !VBOOT
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help
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This driver automatically initializes the TPM if vboot is not used.
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The TPM driver init is done during the ramstage chip init phase.
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config TPM_PPI
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bool "Generate ACPI code to implement TPM physical presence interface"
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depends on TPM1 || TPM2
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depends on HAVE_ACPI_TABLES
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depends on !CHROMEOS
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default y if PAYLOAD_TIANOCORE
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help
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This driver automatically generates ACPI tables for the Physical
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Presence Interface defined by the TCG. If not activated only a stub
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will be generated without any functionality.
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