On Tue, Jun 10, 2025 at 04:22:04PM +0100, Yeoreum Yun wrote:

quoted

OK, if ffa_init() is leveled up in the initcall hierarchy, shouldn't
that be enough as long as ko's can be found from initramfs?

As you mentioned, this is handled in Patch #1.
However, although ffa_init() is called first,
unless tpm_crb_ffa_init() is also invoked,
crb_acpi_driver_init() will fail with -EPROBE_DEFER.

Please note that IMA is always built-in and cannot be built as a module.

Sure but if one needs IMA, then tpm_crb_ffa can be compiled as built-in
with zero code changes.

BR, Jarkko