Messages in this thread | | | Date | Wed, 25 May 2022 09:37:09 +0200 | From | Borislav Petkov <> | Subject | Re: [RFC PATCH 3/3] x86/microcode: Taint and warn on late loading |
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On Wed, May 25, 2022 at 08:59:40AM +0200, Peter Zijlstra wrote: > On Tue, May 24, 2022 at 06:03:04PM -0700, Luck, Tony wrote: > > On Tue, May 24, 2022 at 08:53:24PM +0200, Borislav Petkov wrote: > > > + add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK); > > > > Seems harsh. Updating microcode to the latest is arguably the > > way to make sure that your CPU stays "IN_SPEC" (since the microcode > > may have a fix for a functional issue). > > Then use early loading. There's too many fails associated with late > loading.
Yes, short of
TAINT_YOU_DID_SOMETHING_DANGEROUS
we simply don't have a better taint flag.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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