** Also affects: linux-bluefield (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux-bluefield (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2033316
Title:
UBUNTU: [Config] optee: Adjust CONFIG_OPTEE_SHM_NUM_PRIV_PAGES to 4
Status in linux-bluefield package in Ubuntu:
Invalid
Status in linux-bluefield source package in Jammy:
New
Bug description:
SRU Justification:
[Impact]
This change is needed to OPTEE as the FTPM driver requires 2 contiguous SHMEM
pages to boot. Without this change the ftpm_tee_probe function will fail.
[Fix]
Change the CONFIG_OPTEE_SHM_NUM_PRIV_PAGES from 1 to 4. Note that other SHMEM
structures are allocated out of this OPTEE pool as well.
[Test Case]
Verified the Microsoft TPM 2.0 FTPM is fully functional with this change,
running the tpm2-tss Test Suite (mandatory & optional) tests as well as many
of the TPM2 Command tools.
[Regression Potential]
This only has an effect if OPTEE is configured/enabled in the kernel.
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