1*4a135bc3SAlexei FedorovDTB binding for Event Log properties 2*4a135bc3SAlexei Fedorov==================================== 3*4a135bc3SAlexei Fedorov 4*4a135bc3SAlexei FedorovThis document describes the device tree format of Event Log properties. 5*4a135bc3SAlexei FedorovThese properties are not related to a specific platform and can be queried 6*4a135bc3SAlexei Fedorovfrom common code. 7*4a135bc3SAlexei Fedorov 8*4a135bc3SAlexei FedorovDynamic configuration for Event Log 9*4a135bc3SAlexei Fedorov~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 10*4a135bc3SAlexei Fedorov 11*4a135bc3SAlexei FedorovMeasured Boot driver expects a *tpm_event_log* node with the following field 12*4a135bc3SAlexei Fedorovin 'nt_fw_config' and 'tsp_fw_config' DTS files: 13*4a135bc3SAlexei Fedorov 14*4a135bc3SAlexei Fedorov- compatible [mandatory] 15*4a135bc3SAlexei Fedorov - value type: <string> 16*4a135bc3SAlexei Fedorov - Must be the string "arm,tpm_event_log". 17*4a135bc3SAlexei Fedorov 18*4a135bc3SAlexei FedorovThen a list of properties representing Event Log configuration, which 19*4a135bc3SAlexei Fedorovcan be used by Measured Boot driver. Each property is named according 20*4a135bc3SAlexei Fedorovto the information it contains: 21*4a135bc3SAlexei Fedorov 22*4a135bc3SAlexei Fedorov- tpm_event_log_sm_addr [fvp_nt_fw_config.dts with OP-TEE] 23*4a135bc3SAlexei Fedorov - value type: <u64> 24*4a135bc3SAlexei Fedorov - Event Log base address in secure memory. 25*4a135bc3SAlexei Fedorov 26*4a135bc3SAlexei FedorovNote. Currently OP-TEE does not support reading DTBs from Secure memory 27*4a135bc3SAlexei Fedorovand this property should be removed when this feature is supported. 28*4a135bc3SAlexei Fedorov 29*4a135bc3SAlexei Fedorov- tpm_event_log_addr [mandatory] 30*4a135bc3SAlexei Fedorov - value type: <u64> 31*4a135bc3SAlexei Fedorov - Event Log base address in non-secure memory. 32*4a135bc3SAlexei Fedorov 33*4a135bc3SAlexei Fedorov- tpm_event_log_size [mandatory] 34*4a135bc3SAlexei Fedorov - value type: <u32> 35*4a135bc3SAlexei Fedorov - Event Log size. 36