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On newer systems such as Alder Lake it has been noticed that Intel PTT
control area is not writable until PTT is switched to ready state. The
EDK2 CRB drivers always initialize the command/response buffer address
and size registers before invoking the TPM command. See STEP 2 in
PtpCrbTpmCommand function in
tianocore/edk2/SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2Ptp.c
Doing the same in coreboot allowed to perform PTT TPM startup
successfully and measure the components to PCRs in ramstage on an
Alder Lake S platform.
TEST=Enable measured boot and see Intel PTT is started successfully
and no errors occur during PCR extends on MSI PRO Z690-A DDR4 WIFI.
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Ia8e473ecc1a520851d6d48ccad9da35c6f91005d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63957
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
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Change-Id: I19cce90f44b54e4eb6dd8517793ae887f0bd1e22
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I202e5d285612b9bf237b588ea3c006187623fdc3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44609
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
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Change-Id: Ia3de79c7d71049da00ed108829eac6cb49ff3ed6
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41205
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add the Command Response Buffer which is defined in the TPM 2.0 Specs.
CRB can be specified with MAINBOARD_HAS_CRB_TPM, even though it is
actually SoC/SB specific.
Change-Id: I477e45963fe3cdbc02cda9ae99c19142747e4b46
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34106
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
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