9a868f6343
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@ellerman.id.au> |
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