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+What: /sys/firmware/secvar
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: This directory is created if the POWER firmware supports OS
+ secureboot, thereby secure variables. It exposes interface
+ for reading/writing the secure variables
+
+What: /sys/firmware/secvar/vars
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: This directory lists all the secure variables that are supported
+ by the firmware.
+
+What: /sys/firmware/secvar/format
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: A string indicating which backend is in use by the firmware.
+ This determines the format of the variable and the accepted
+ format of variable updates.
+
+What: /sys/firmware/secvar/vars/<variable name>
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: Each secure variable is represented as a directory named as
+ <variable_name>. The variable name is unique and is in ASCII
+ representation. The data and size can be determined by reading
+ their respective attribute files.
+
+What: /sys/firmware/secvar/vars/<variable_name>/size
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: An integer representation of the size of the content of the
+ variable. In other words, it represents the size of the data.
+
+What: /sys/firmware/secvar/vars/<variable_name>/data
+Date: August 2019
+Contact: Nayna Jain h<nayna@linux.ibm.com>
+Description: A read-only file containing the value of the variable. The size
+ of the file represents the maximum size of the variable data.
+
+What: /sys/firmware/secvar/vars/<variable_name>/update
+Date: August 2019
+Contact: Nayna Jain <nayna@linux.ibm.com>
+Description: A write-only file that is used to submit the new value for the
+ variable. The size of the file represents the maximum size of
+ the variable data that can be written.