sysfs/cpu: Add vulnerability folder for ppc64el

Bug #1746080 reported by bugproxy on 2018-01-29
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
The Ubuntu-power-systems project
Medium
Canonical Kernel Team
linux (Ubuntu)
Medium
Canonical Kernel Team

Bug Description

Canonical,

if you are planning to integrate the following patch, you will need the ppc64el patches that could be found attached to this bug:

From f0dadb2e6bd7b463670a6230d5c23ad859f11c75 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <email address hidden>
Date: Sun, 7 Jan 2018 22:48:00 +0100
Subject: [PATCH 1/3] sysfs/cpu: Add vulnerability folder

As the meltdown/spectre problem affects several CPU architectures, it makes
sense to have common way to express whether a system is affected by a
particular vulnerability or not. If affected the way to express the
mitigation should be common as well.

Create /sys/devices/system/cpu/vulnerabilities folder and files for
meltdown, spectre_v1 and spectre_v2.

Default Comment by Bridge

tags: added: architecture-ppc64le bugnameltc-163988 severity-medium targetmilestone-inin1710

Default Comment by Bridge

Default Comment by Bridge

Changed in ubuntu:
assignee: nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
affects: ubuntu → linux (Ubuntu)
Changed in ubuntu-power-systems:
importance: Undecided → Medium
assignee: nobody → Canonical Kernel Team (canonical-kernel-team)
tags: added: triage-g
tags: added: kernel-da-key pti
Changed in linux (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
Changed in ubuntu-power-systems:
status: New → Triaged
Manoj Iyer (manjo) on 2018-02-05
Changed in linux (Ubuntu):
assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Canonical Kernel Team (canonical-kernel-team)
Manoj Iyer (manjo) on 2018-03-05
Changed in linux (Ubuntu):
status: Triaged → Fix Committed
Changed in ubuntu-power-systems:
status: Triaged → Fix Committed
Manoj Iyer (manjo) wrote :

Marking bionic as fix-released since the patch identified here is in bionic-master
87590ce6e373 sysfs/cpu: Add vulnerability folder

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
Changed in ubuntu-power-systems:
status: Fix Committed → Fix Released
Manoj Iyer (manjo) wrote :

Also tested on power9 w/4.15.0-13-generic #14-Ubuntu to confirm the presense of the directory cpu/vulnerabilities

ubuntu@dradis:~$ ls /sys/devices/system/cpu/vulnerabilities
meltdown spectre_v1 spectre_v2
ubuntu@dradis:~$

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