Wed, 2023-09-27
How to check that you are running the latest version of microcode (processor firmware) for AMD. permalink
Have a look at your CPU info
$ grep -E "^(model|microcode|cpu family)" /proc/cpuinfo | sort -u cpu family : 21 microcode : 0x6000852 model : 2 model name : AMD FX(tm)-8350 Eight-Core Processor
The "cpu family" is shown in decimal, convert to hex, i.e. 21 becomes 15h
Clone these repos
git clone https://github.com/AMDESE/amd_ucode_info git clone --depth=1 git://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git
Get the info about the latest version of the microcode for the appropriate family.
$ cd linux-firmware $ ../amd_ucode_info/amd_ucode_info.py amd-ucode/microcode_amd_fam15h.bin Microcode patches in amd-ucode/microcode_amd_fam15h.bin: Family=0x15 Model=0x01 Stepping=0x02: Patch=0x0600063e Length=2592 bytes Family=0x15 Model=0x02 Stepping=0x00: Patch=0x06000852 Length=2592 bytes Family=0x15 Model=0x10 Stepping=0x01: Patch=0x06001119 Length=2592 bytes
Check the version from "cpuinfo" matches the line for your Family/Model