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1Device instance to test mapping2intel_ifs_0 -> Scan Test3intel_ifs_1 -> Array BIST test4 5What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test6Date: Nov 16 20227KernelVersion: 6.28Contact: "Jithu Joseph" <jithu.joseph@intel.com>9Description: Write <cpu#> to trigger IFS test for one online core.10 Note that the test is per core. The cpu# can be11 for any thread on the core. Running on one thread12 completes the test for the core containing that thread.13 Example: to test the core containing cpu5: echo 5 >14 /sys/devices/virtual/misc/intel_ifs_<N>/run_test15Devices: all16 17What: /sys/devices/virtual/misc/intel_ifs_<N>/status18Date: Nov 16 202219KernelVersion: 6.220Contact: "Jithu Joseph" <jithu.joseph@intel.com>21Description: The status of the last test. It can be one of "pass", "fail"22 or "untested".23Devices: all24 25What: /sys/devices/virtual/misc/intel_ifs_<N>/details26Date: Nov 16 202227KernelVersion: 6.228Contact: "Jithu Joseph" <jithu.joseph@intel.com>29Description: Additional information regarding the last test. The details file reports30 the hex value of the STATUS MSR for this test. Note that the error_code field31 may contain driver defined software code not defined in the Intel SDM.32Devices: all33 34What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version35Date: Nov 16 202236KernelVersion: 6.237Contact: "Jithu Joseph" <jithu.joseph@intel.com>38Description: Version (hexadecimal) of loaded IFS test image. If no test image39 is loaded reports "none". Only present for device instances where a test image40 is applicable.41Devices: intel_ifs_042 43What: /sys/devices/virtual/misc/intel_ifs_<N>/current_batch44Date: Nov 16 202245KernelVersion: 6.246Contact: "Jithu Joseph" <jithu.joseph@intel.com>47Description: Write a number less than or equal to 0xff to load an IFS test image.48 The number written treated as the 2 digit suffix in the following file name:49 /lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan50 Reading the file will provide the suffix of the currently loaded IFS test image.51 This file is present only for device instances where a test image is applicable.52Devices: intel_ifs_053