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>
As preparation to a full PPI implementation move the acpi code out
of the pc80/tpm/tis driver into the generic tpm driver folder.
This doesn't change any functionality.
Change-Id: I7818d0344d4a08926195bd4804565502717c48fa
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Logic: If vboot is not used and the tpm is not initialized in the
romstage makes use of the ramstage driver to initialize the TPM
globally without having setup calls in lower SoC level implementations.
* Add TPM driver in ramstage chip init which calls the tpm_setup
function.
* Purge all occurrences of TPM init code and headers.
* Only compile TIS drivers into ramstage except for vboot usage.
* Remove Google Urara/Rotor TPM support because of missing i2c driver
in ramstage.
Change-Id: I7536c9734732aeaa85ccc7916c12eecb9ca26b2e
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/24905
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
