Hello, On Thu, 4 Jan 2018 16:09:34 +0100 Christian Zigotzky <chzigot...@xenosoft.de> wrote:
> Hi All, > > Do we have some information regarding Spectre+Meltdown for our users? > > It could be that we have some security issues in our PowerPC CPUs. > > Links: > > https://www.phoronix.com/scan.php?page=news_item&px=Linux-Kernel-Retpoline-Patches > > https://www.phoronix.com/scan.php?page=news_item&px=x86-PTI-EPYC-Linux-4.15-Test > Since the vulnerability details were disclosed already you should see patches addressing it in your local kernel git repository. AFAICT some patches for preventing speculative execution in some random parts of the kernel as well as adding an extra flush when returning from kernel to userspace are applicable to powerpc. I am not familiar with all the details so you are free to investigate the code for yourself or fish some article from someone who really knows what the thing is all about and how it affects powerpc in particular. Thanks Michal
