Bug 1465631

Summary: Intel microcode update for Skylake and Kaby Lake processors
Product: Red Hat Enterprise Linux 7 Reporter: Phil Perry <phil>
Component: microcode_ctlAssignee: Petr Oros <poros>
Status: CLOSED NEXTRELEASE QA Contact: Rachel Sibley <rasibley>
Severity: high Docs Contact:
Priority: unspecified    
Version: 7.3CC: ajb, dbayly, devin, dshaw, emcnabb, Frodox, jbastian, toracat
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Last Closed: 2017-06-28 17:04:48 UTC Type: Bug
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Description Phil Perry 2017-06-27 19:34:37 UTC 
Description of problem:
Intel recently released an update to their microcode to fix a bug in Skylake and Kaby Lake processors. Please could I request microcode_ctl be updated to the latest version to include this microcode update (microcode-20170511.tgz):

https://downloadcenter.intel.com/download/26798/Linux-Processor-Microcode-Data-File

https://lists.debian.org/debian-devel/2017/06/msg00308.html

Version-Release number of selected component (if applicable):

microcode_ctl-2.1-16.3.el7_3.x86_64

How reproducible:

always

Steps to Reproduce:
1. dmesg | grep 'microcode'
[    0.704818] microcode: CPU0 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704821] microcode: CPU1 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704833] microcode: CPU2 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704843] microcode: CPU3 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704882] microcode: Microcode Update Driver: v2.01 <tigran.co.uk>, Peter Oruba

2.
3.

Actual results:
dmesg | grep 'microcode'
[    0.704818] microcode: CPU0 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704821] microcode: CPU1 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704833] microcode: CPU2 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704843] microcode: CPU3 sig=0x506e3, pf=0x2, revision=0xa0
[    0.704882] microcode: Microcode Update Driver: v2.01 <tigran.co.uk>, Peter Oruba

Expected results:
This bug is fixed in microcode revision 0xba and later

Additional info:

https://caml.inria.fr/mantis/view.php?id=7452
Comment 2 Phil Perry 2017-06-27 19:44:55 UTC 
I have just checked the version in 7.4beta (microcode_ctl-2.1-21.el7.x86_64.rpm), and this release is also not using the latest microcode.
Comment 3 Don Bayly 2017-06-28 17:04:48 UTC 
We include Microcode Updates with most Releases