Re: ima_tpm_chip is queried and saved only at IMA init, but never later

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On 10/3/19 8:49 AM, Mimi Zohar wrote:
Can IMA take a dependency on TPM and postpone IMA initialization until a
TPM device shows up?

IMA is already on the late_initcall(), waiting for the TPM
initialization to complete.

How would you define a TPM dependency?
I meant - can IMA return a status code from it's init routine such that it gets called back when a TPM device shows up. And, at that point continue the initialization.

Similar to how a driver for Device A would indicate it's dependency on the availability of a Device B. I am not sure if such a thing is possible with IMA.

Thanks,
 -lakshmi




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