Intel Spectre v2 broken microcode detected; disabling Speculation Control

[dino99]

This is logged since the latest intel-microcode upgrade

kernel: Intel Spectre v2 broken microcode detected; disabling Speculation Control

This was not seen without the previous version.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: intel-microcode 3.20180312.0~ubuntu18.04.1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Mar 15 13:37:28 2018
EcryptfsInUse: Yes
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: intel-microcode
UpgradeStatus: No upgrade log present (probably fresh install)