[SLOF] [PATCH 01/16] Add a TPM driver implementation

Nikunj A Dadhania nikunj at linux.vnet.ibm.com
Wed Nov 11 04:48:09 AEDT 2015


Stefan Berger <stefanb at linux.vnet.ibm.com> writes:
>>> +	/* response CRQ has been set and valid field cleared */
>>> +
>>> +	crq.valid = PAPR_VTPM_VALID_COMMAND;
>>> +	crq.msg = PAPR_VTPM_TPM_COMMAND;
>>> +	crq.len = cpu_to_be16(spapr_vtpm.buffer_offset);
>>> +	crq.data = cpu_to_be32((uint64_t)spapr_vtpm.buffer);
>>> +
>>> +	pfw_drv_state_set(PFW_DRV_STATE_SEND_TPM_CMD,
>>> +	                  PFW_DRV_ERROR_NO_FAILURE);
>>> +
>>> +	rc = hv_send_crq(spapr_vtpm.vtpm_unit, (uint64_t *)&crq);
>>> +
>>> +	if (rc == H_SUCCESS) {
>>> +		pfw_drv_state_set(PFW_DRV_STATE_WAIT_TPM_RSP,
>>> +		                  PFW_DRV_ERROR_NO_FAILURE);
>>> +	} else {
>>> +		/* per pfw doc, move to wait_init state */
>> Is this available externally? where ?
>
> It's not available externally.

In that case, is it possible to document the behaviour here in short?

Regards
Nikunj



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