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HomeSafety and Security NoticesUpdated Intel Microcode 20180108

Updated Intel Microcode 20180108

Released: Jan 11, 2018     Updated: Mar 16, 2018


Wind River Update Notice: Updated Intel Microcode 20180108

Affected Product Versions

Wind River Linux LTS 17, Pulsar Linux 8, Wind River Linux 9, Wind River Linux 5, Wind River Linux 6, Wind River Linux 7, Wind River Linux 8


Wind River® has made available the latest Intel microcode (dated 2018-01-08).

For details on the changes in this microcode please contact Intel.

Linux* Processor Microcode Data File

We recommend that OEMs, cloud service providers, system manufacturers, software vendors and end users stop deployment of current versions, as they may introduce higher than expected reboots and other unpredictable system behavior.

More information please see:


3/15/2018: The new version microcode-20180312.tgz has been uploaded in

1/23/2018: STOP deploymeng

1/17/2018: Add Intel reference link, and add a notes

1/12/2018: Add the steps for Pulsar Linux 8

1/11/2018: Add the patches for each WRLinux version to upgrade the Intel microcode

Installation Notes

Installation for WRL LTS-17/9/8/7/6/5

Please update to the latest RCPL for all products.

1) Wind River Linux LTS-17

create a project
$ --machine ... ...
$cd layers/meta-intel-dl/downloads
$cd layers/meta-intel
$git am --whitespace=nowarn WRLLTS17-intel-microcode-update-to-20180108.patch

2) Wind River Linux 9

create a project
$ --machine ... ...
$cd layers/wr-base
$git am --whitespace=nowarn WRL9-microcode-ctl-update-microcode-to-version-2018.patch

3) Wind River Linux 8

create a new project
$configure --enable-kernel=... --enable-board=... ...
$cd layers/wr-bsps/intel-x86
$git am --whitespace=nowarn WRL8-intel-x86-update-microcode-to-version-20180108.patch

4) Wind River Linux 7

create a new project
$configure --enable-kernel=... --enable-board=... ...
$cd layers/wr-bsps/intel-x86
$git am --whitespace=nowarn WRL7-intel-x86-update-microcode-to-version-20180108.patch

5) Wind River Linux 6

create a new project
$configure --enable-kernel=... --enable-board=... ...
$cd layers/wr-bsps/intel-x86
$git am --whitespace=nowarn WRL6-intel-x86-update-microcode-to-version-20180108.patch

6) Wind River Linux 5

create a new project
$configure --enable-kernel=... --enable-board=... ...
$cd layers/wr-base
$git am --whitespace=nowarn WRL5-intel-x86-update-microcode-to-version-20180108.patch

7) Wind River Pulsar Linux 8
On your target
$tar zxvf microcode-20180108.tgz

Now you will get one directory and two files:


Check and remember your CPU's microcode version:
$cat /proc/cpuinfo | grep microcode
microcode    : 0xxx

Upgrade in *cube-essential*
$cp -r intel-ucode /lib/firmware
$echo 1 > /sys/devices/system/cpu/microcode/reload

check to see if the microcode upgraded
$cat /proc/cpuinfo | grep microcode
microcode : 0xxx

Now the microcode should changed to a bigger value. Upgrade accomplished.

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