0001 What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test
0002 Date: April 21 2022
0003 KernelVersion: 5.19
0004 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
0005 Description: Write <cpu#> to trigger IFS test for one online core.
0006 Note that the test is per core. The cpu# can be
0007 for any thread on the core. Running on one thread
0008 completes the test for the core containing that thread.
0009 Example: to test the core containing cpu5: echo 5 >
0010 /sys/devices/platform/intel_ifs.<N>/run_test
0011
0012 What: /sys/devices/virtual/misc/intel_ifs_<N>/status
0013 Date: April 21 2022
0014 KernelVersion: 5.19
0015 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
0016 Description: The status of the last test. It can be one of "pass", "fail"
0017 or "untested".
0018
0019 What: /sys/devices/virtual/misc/intel_ifs_<N>/details
0020 Date: April 21 2022
0021 KernelVersion: 5.19
0022 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
0023 Description: Additional information regarding the last test. The details file reports
0024 the hex value of the SCAN_STATUS MSR. Note that the error_code field
0025 may contain driver defined software code not defined in the Intel SDM.
0026
0027 What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version
0028 Date: April 21 2022
0029 KernelVersion: 5.19
0030 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
0031 Description: Version (hexadecimal) of loaded IFS binary image. If no scan image
0032 is loaded reports "none".
0033
0034 What: /sys/devices/virtual/misc/intel_ifs_<N>/reload
0035 Date: April 21 2022
0036 KernelVersion: 5.19
0037 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
0038 Description: Write "1" (or "y" or "Y") to reload the IFS image from
0039 /lib/firmware/intel/ifs/ff-mm-ss.scan.
