Re: [arch-releng] [RFC] [PATCH] [configs/releng] Make and use amd_ucode.bin for initrd.

Well, fudge. I see now that I needed to update GRUB so that it would put the microcode in the kernel boot config: grub-mkconfig -o /boot/grub/grub.cfg To now see: initrd /intel-ucode.img /amd-ucode.img /initramfs-linux.img in the grub.cfg Without this manual step, simply installing the amd-ucode doesn't take effect. Duh. Interesting part of dmesg output is now: [ 2.055382] microcode: microcode updated early to new patch_level=0x0600063e [ 2.055412] microcode: CPU0: patch_level=0x0600063e [ 2.055420] microcode: CPU1: patch_level=0x0600063e [ 2.055428] microcode: CPU2: patch_level=0x0600063e [ 2.055435] microcode: CPU3: patch_level=0x0600063e [ 2.055443] microcode: CPU4: patch_level=0x0600063e [ 2.055451] microcode: CPU5: patch_level=0x0600063e [ 2.055456] microcode: CPU6: patch_level=0x0600063e [ 2.055462] microcode: CPU7: patch_level=0x0600063e [ 2.055503] microcode: Microcode Update Driver: v2.2. [ 2.422079] QUIRK: Enable AMD PLL fix So, I guess that answers the question sought after. On Fri, Aug 24, 2018 at 10:13 PM Bryan L. Gay wrote:

I'd like to think I could do some verification since I'm on AMD... I'm new here, so help me along if there's something I've missed.

I enabled the [testing] repo and installed: pacman -S testing/linux testing/amd-ucode testing/linux-firmware

pacman -Q linux linux-firmware amd-ucode linux 4.18.5.arch1-1 linux-firmware 20180821.1d17c18-2 amd-ucode 20180821.1d17c18-2

I did a mkinitcpio -p linux just in case, then rebooted.

output of `dmesg | grep -ie code -ie amd` (with obvious fluff removed):

[ 0.000000] AMD AuthenticAMD [ 0.000000] random: get_random_u32 called from bsp_init_amd+0x1f9/0x290 with crng_init=0 [ 0.000000] ACPI: SSDT 0x00000000BFDDFB10 001714 (v01 AMD POWERNOW 00000001 AMD 00000001) [ 0.000000] ACPI: IVRS 0x00000000BFDE12A0 0000E8 (v01 AMD RD890S 00202031 AMD 00000000) [ 0.025991] Spectre V2 : Mitigation: Full AMD retpoline [ 0.036666] smpboot: CPU0: AMD FX(tm)-8120 Eight-Core Processor (family: 0x15, model: 0x1, stepping: 0x2) [ 0.053345] Performance Events: Fam15h core perfctr, AMD PMU driver. [ 1.950177] amd_uncore: AMD NB counters detected [ 1.950462] perf: AMD IBS detected (0x000000ff) [ 2.018364] microcode: CPU0: patch_level=0x0600063d [ 2.018371] microcode: CPU1: patch_level=0x0600063d [ 2.018379] microcode: CPU2: patch_level=0x0600063d [ 2.018388] microcode: CPU3: patch_level=0x0600063d [ 2.018396] microcode: CPU4: patch_level=0x0600063d [ 2.018403] microcode: CPU5: patch_level=0x0600063d [ 2.018410] microcode: CPU6: patch_level=0x0600063d [ 2.018418] microcode: CPU7: patch_level=0x0600063d [ 2.018457] microcode: Microcode Update Driver: v2.2. [ 2.375803] QUIRK: Enable AMD PLL fix [ 2.375865] ehci-pci 0000:00:12.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround [ 2.391345] ehci-pci 0000:00:13.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround [ 2.404862] ehci-pci 0000:00:16.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround [ 5.980964] microcode: CPU1: new patch_level=0x0600063e [ 5.992588] microcode: CPU4: new patch_level=0x0600063e [ 6.013367] microcode: CPU2: new patch_level=0x0600063e [ 6.034148] microcode: CPU6: new patch_level=0x0600063e [ 6.034221] x86/CPU: CPU features have changed after loading microcode, but might not take effect.

Those microcode: lines at the end total 4, while I have an 8-core AMD FX-8120 - and the CPU numbers are usually different at each boot.

Is there anything else I can do to assist?

On Fri, Aug 24, 2018 at 5:10 PM Christian Hesse wrote:

...

Gerardo Exequiel Pozzi via arch-releng on Fri, 2018/08/24 17:34:

...

...

And another note... Did anybody test if microcode is updated properly if both, intel-ucode.img and amd-ucode, are loaded?

At least one feedback from intel user [#2], fw is loaded fine.

Well, intel ucode is loaded first, so that result is kind of expected. Feedback from an amd user would be welcome. -- main(a){char*c=/* Schoene Gruesse */"B?IJj;MEH" "CX:;",b;for(a/* Best regards my address: */=0;b=c[a++];) putchar(b-1/(/* Chris cc -ox -xc - && ./x */b/42*2-3)*42);}