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Update intel-microcode to 20201118

Authored by stalebrim on Oct 31 2020, 5:47 PM.


  • Fixes for gen4-gen10 processors and some Xeon processors
  • Security updates for SA-00381
  • Security updates for SA-00389

Updated platforms can be found here:

Test Plan

Testers wanted

Diff Detail

R3764 intel-microcode
Automatic diff as part of commit; lint not applicable.
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

stalebrim created this revision.Oct 31 2020, 5:47 PM
stalebrim requested review of this revision.Oct 31 2020, 5:47 PM

Test plan (i5-7200U):

  • echo 1 | sudo tee -a /sys/devices/system/cpu/microcode/reload
  • reboot
  • cat /proc/cpuinfo | grep microcode | head -n 1

The microcode update isn't actually applying for me, despite being on the list of affected chips. I've tried a few times. The microcode update appears in dmesg, but it's just reporting updating from 0xCA to 0xCA.

stalebrim updated this revision to Diff 24056.Nov 21 2020, 6:15 PM

Update intel-microcode to 20201118

stalebrim edited the summary of this revision. (Show Details)Nov 21 2020, 6:19 PM
stalebrim edited the test plan for this revision. (Show Details)
stalebrim added a project: Restricted Project.
stalebrim retitled this revision from Update intel-microcode to 20200616 to Update intel-microcode to 20201118.Nov 21 2020, 6:22 PM
JoshStrobl accepted this revision.Nov 21 2020, 6:25 PM
JoshStrobl edited the summary of this revision. (Show Details)
This revision is now accepted and ready to land.Nov 21 2020, 6:25 PM
silke added a subscriber: silke.Nov 22 2020, 1:38 PM

Works for me when manually reloading with echo 1 | sudo tee -a /sys/devices/system/cpu/microcode/reload (this requires no reboot):

[ 1144.388399] microcode: updated to revision 0xde, date = 2020-05-18
[ 1144.388592] microcode: Reload completed, microcode revision: 0xde

The microcode isn't loaded automatically on boot, though.

This revision was automatically updated to reflect the committed changes.