| Device instance to test mapping | |
| intel_ifs_0 -> Scan Test | |
| intel_ifs_1 -> Array BIST test | |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test | |
| Date: Nov 16 2022 | |
| KernelVersion: 6.2 | |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> | |
| Description: Write <cpu#> to trigger IFS test for one online core. | |
| Note that the test is per core. The cpu# can be | |
| for any thread on the core. Running on one thread | |
| completes the test for the core containing that thread. | |
| Example: to test the core containing cpu5: echo 5 > | |
| /sys/devices/virtual/misc/intel_ifs_<N>/run_test | |
| Devices: all | |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/status | |
| Date: Nov 16 2022 | |
| KernelVersion: 6.2 | |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> | |
| Description: The status of the last test. It can be one of "pass", "fail" | |
| or "untested". | |
| Devices: all | |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/details | |
| Date: Nov 16 2022 | |
| KernelVersion: 6.2 | |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> | |
| Description: Additional information regarding the last test. The details file reports | |
| the hex value of the STATUS MSR for this test. Note that the error_code field | |
| may contain driver defined software code not defined in the Intel SDM. | |
| Devices: all | |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version | |
| Date: Nov 16 2022 | |
| KernelVersion: 6.2 | |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> | |
| Description: Version (hexadecimal) of loaded IFS test image. If no test image | |
| is loaded reports "none". Only present for device instances where a test image | |
| is applicable. | |
| Devices: intel_ifs_0 | |
| What: /sys/devices/virtual/misc/intel_ifs_<N>/current_batch | |
| Date: Nov 16 2022 | |
| KernelVersion: 6.2 | |
| Contact: "Jithu Joseph" <jithu.joseph@intel.com> | |
| Description: Write a number less than or equal to 0xff to load an IFS test image. | |
| The number written treated as the 2 digit suffix in the following file name: | |
| /lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan | |
| Reading the file will provide the suffix of the currently loaded IFS test image. | |
| This file is present only for device instances where a test image is applicable. | |
| Devices: intel_ifs_0 |