On Fri, Apr 27, 2018 at 07:36:44AM +0200, Martin Schwidefsky wrote:
Greetings,
this series is the backport of 18 upstream patches to add the current s390 spectre mitigation to kernel version 4.14. One less patch than 4.14 and 4.9 as there is no nested KVM guest support (aka vsie) in 4.4.
It follows the x86 approach with array_index_nospec for the v1 spectre attack and retpoline/expoline for v2. As a fallback there is the ppa-12/ppa-13 based defense which requires an micro-code update.
All now applied, thanks!
greg k-h