** Also affects: linux-nvidia-6.2 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux-nvidia-6.2 (Ubuntu)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/2037688
Title:
Pull-request to address TPM bypass issue
Status in linux-nvidia-6.2 package in Ubuntu:
Fix Committed
Status in linux-nvidia-6.2 source package in Jammy:
New
Bug description:
NVIDIA: [Config]: Ensure the TPM is available before IMA
initializes
Set the following configs:
CONFIG_SPI_TEGRA210_QUAD=y
CONFIG_TCG_TIS_SPI=y
On Grace systems, the IMA driver emits the following log:
ima: No TPM chip found, activating TPM-bypass!
This occurs because the IMA driver initializes before we are able to
detect
the TPM. This will always be the case when the drivers required to
communicate with the TPM, spi_tegra210_quad and tpm_tis_spi, are built as
modules.
Having these drivers as built-ins ensures that the TPM is available before
the IMA driver initializes.
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