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(parent: 719b84c) | patch
s390: report spectre mitigation via syslog
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 27 Apr 2018 05:36:40 +0000 (07:36 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 29 Apr 2018 09:33:15 +0000 (11:33 +0200)
commit68cb884e12288cdbc044895affd528ceb98a815b
tree0c9155d3e432c4451f2722d98352dc1be993d385tree | snapshot (tar.gz zip)
parent719b84c9aec27953da3da75838f50fd89ea950a2commit | diff
s390: report spectre mitigation via syslog

[ Upstream commit bc035599718412cfba9249aa713f90ef13f13ee9 ]

Add a boot message if either of the spectre defenses is active.
The message is
    "Spectre V2 mitigation: execute trampolines."
or  "Spectre V2 mitigation: limited branch prediction."

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/s390/kernel/nospec-branch.c diff | blob | blame | history