Re: Is the CPU microcode updated?

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From	Michel Verdier <mv524@free.fr>
Newsgroups	linux.debian.user
Subject	Re: Is the CPU microcode updated?
Date	Thu, 26 Sep 2024 10:40:01 +0200
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On 2024-09-25, Franco Martelli wrote:

> The file that contains the microcode for my CPU is dated April 2022:
>
> $ LANG=C ls -l /lib/firmware/amd-ucode/microcode_amd_fam15h.bin
> -rw-r--r-- 1 root root 7876 Apr 15  2022
>  /lib/firmware/amd-ucode/microcode_amd_fam15h.bin

Same for me. And :

# dpkg -l amd64-microcode
ii  amd64-microcode 3.20240820.1~deb12u1 amd64        Platform firmware and microcode for AMD CPUs and SoCs

But I got :

# cat /proc/cpuinfo | grep microcode
microcode	: 0xa601206
[x cpu nb]

Previously you said :

> The issue is that I'm running an homemade Kernel image that it had the
> CONFIG_MICROCODE_AMD item disabled by me mistakenly, so I'm not sure that the
> microcode of my CPU was updated. Of course I've rebuild and installed a new
> kernel with that item enabled before rebooting.

I also build my custom kernel. I use sources from 6.10.6-1~bpo12+1. I
have no CONFIG_MICROCODE_AMD but a CONFIG_MICROCODE set by
CONFIG_CPU_SUP_AMD. Which kernel version do you use ?

Thread

Is the CPU microcode updated? Franco Martelli <martellif67@gmail.com> - 2024-09-24 21:40 +0200
  Re: Is the CPU microcode updated? Jeffrey Walton <noloader@gmail.com> - 2024-09-25 01:00 +0200
    Re: Is the CPU microcode updated? Franco Martelli <martellif67@gmail.com> - 2024-09-25 17:10 +0200
  Re: Is the CPU microcode updated? Jörg-Volker Peetz <jvpeetz@web.de> - 2024-09-25 15:00 +0200
    Re: Is the CPU microcode updated? Franco Martelli <martellif67@gmail.com> - 2024-09-25 17:10 +0200
      Re: Is the CPU microcode updated? Dan Ritter <dsr@randomstring.org> - 2024-09-25 18:40 +0200
        Re: Is the CPU microcode updated? Franco Martelli <martellif67@gmail.com> - 2024-09-25 21:40 +0200
          Re: Is the CPU microcode updated? Dan Ritter <dsr@randomstring.org> - 2024-09-25 22:10 +0200
          Re: Is the CPU microcode updated? Michel Verdier <mv524@free.fr> - 2024-09-26 10:40 +0200
            Re: Is the CPU microcode updated? Franco Martelli <martellif67@gmail.com> - 2024-09-26 15:40 +0200
      Re: Is the CPU microcode updated? Jörg-Volker Peetz <jvpeetz@web.de> - 2024-09-26 15:00 +0200
        Re: Is the CPU microcode updated? Henrik Ahlgren <pablo@seestieto.com> - 2024-09-27 09:50 +0200
        objtool errors message while compiling the Kernel (was: Is the CPU  microcode updated?) Franco Martelli <martellif67@gmail.com> - 2024-09-27 15:20 +0200

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