linux-kernel - Suggestion: „spectre_v2=off“ and „nopti“ per default in "Intel Atom N270" case?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 19 May 2018 21:53:02 +0200
From:   Christian Krüger <C.Krueger.B@....de>
To:     linux-kernel@...r.kernel.org
Subject: Suggestion: „spectre_v2=off“ and „nopti“ per default in "Intel Atom N270" case?

Hi,

Since the old "in-order-execution" Intel CPUs like the Intel Atom N270 
(known for being installed in many Netbooks and Nettops) are not 
sensitive for "Meltdown" & "Spectre" , wouldn't it be a good idea to 
exclude these anyway "weak" CPUs from the costly patches by default?

Browsing the web, I can "feel the difference" if the matching kernel 
options are applied on such a device.

BR
C.Krüger