From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- Documentation/ABI/testing/sysfs-secvar | 46 ++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-secvar (limited to 'Documentation/ABI/testing/sysfs-secvar') diff --git a/Documentation/ABI/testing/sysfs-secvar b/Documentation/ABI/testing/sysfs-secvar new file mode 100644 index 000000000..feebb8c57 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-secvar @@ -0,0 +1,46 @@ +What: /sys/firmware/secvar +Date: August 2019 +Contact: Nayna Jain +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 +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 +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/ +Date: August 2019 +Contact: Nayna Jain +Description: Each secure variable is represented as a directory named as + . 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//size +Date: August 2019 +Contact: Nayna Jain +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//data +Date: August 2019 +Contact: Nayna Jain h +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//update +Date: August 2019 +Contact: Nayna Jain +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. -- cgit v1.2.3