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5d0682be31
Current trusted keys framework is tightly coupled to use TPM device as an underlying implementation which makes it difficult for implementations like Trusted Execution Environment (TEE) etc. to provide trusted keys support in case platform doesn't posses a TPM device. Add a generic trusted keys framework where underlying implementations can be easily plugged in. Create struct trusted_key_ops to achieve this, which contains necessary functions of a backend. Also, define a module parameter in order to select a particular trust source in case a platform support multiple trust sources. In case its not specified then implementation itetrates through trust sources list starting with TPM and assign the first trust source as a backend which has initiazed successfully during iteration. Note that current implementation only supports a single trust source at runtime which is either selectable at compile time or during boot via aforementioned module parameter. Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org> |
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