On Fri, Apr 19, 2024, Borislav Petkov wrote: > On Tue, Apr 16, 2024 at 05:15:07PM -0700, Sean Christopherson wrote: > > Explicitly disallow enabling mitigations at runtime for kernels that were > > built with CONFIG_CPU_MITIGATIONS=n, which currently is possible only on > > x86 (via x86's SPECULATION_MITIGATIONS menuconfig). > > Hm, so the umbrella term is CPU_MITIGATIONS, the x86-one is > SPECULATION_MITIGATIONS. > > I wanna streamline our namespacing and say, the arch agnostic term > should be CPU_MITIGATIONS and the x86 one should be then > X86_CPU_MITIGATIONS, the Arm one would be ARM_CPU_MITIGATIONS and so on. +1. That would help avoid goofs like mine. Maybe. :-) > This way we can stick all kinds of special mitigations code - not only > speculative execution ones - under those config items and have it all > straight from the get-go. > > And I think we should do it now, before it all propagates down the tree > and becomes a lot harder to rename. > > Thoughts? > > Thx. > > -- > Regards/Gruss, > Boris. > > https://people.kernel.org/tglx/notes-about-netiquette
