[v2, 01/10] powerpc: Add security feature flags for Spectre/Meltdown

Michael Ellerman patch-notifications at ellerman.id.au
Thu Mar 29 01:13:30 AEDT 2018


On Tue, 2018-03-27 at 12:01:44 UTC, Michael Ellerman wrote:
> This commit adds security feature flags to reflect the settings we
> receive from firmware regarding Spectre/Meltdown mitigations.
> 
> The feature names reflect the names we are given by firmware on bare
> metal machines. See the hostboot source for details.
> 
> Arguably these could be firmware features, but that then requires them
> to be read early in boot so they're available prior to asm feature
> patching, but we don't actually want to use them for patching. We may
> also want to dynamically update them in future, which would be
> incompatible with the way firmware features work (at the moment at
> least). So for now just make them separate flags.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Series applied to powerpc next.

https://git.kernel.org/powerpc/c/9a868f634349e62922c226834aa23e

cheers


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