model GenuineIntel 06-55-04 path intel-ucode/06-55-04 # Bug https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/21 # affects only SKX-W/X (Workstation and HEDT segments); product segment # can be determined by checking bits 5..3 of the CAPID0 field in PCU registers # device (see https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-scalable-spec-update.pdf#page=13 # for Server/FPGA/Fabric segments description; for SKX-W/X no public # documentation seems to be available). Specific device/function numbers # are provided for speeding up the search only, VID:DID is the real selector. pci_config_val mode=success-all device=0x1e function=3 vid=0x8086 did=0x2083 offset=0x84 size=4 mask=0x38 val=0x38,0x18,0x8