On Tue, Jan 30, 2018 at 01:57:21PM +0100, Thomas Gleixner wrote:
> So much for the theory. That's not going to work. If the boot cpu has the
> feature then the alternatives will have been applied. So even if the flag
> mismatch can be observed when a secondary CPU comes up the outcome will be
> access to a non existing MSR and #GP.
Yes, with mismatched microcode we're f*cked.
So my question is: is there such microcode out there or is this
something theoretical which we want to address?
(.. and adressing this will be ugly, no matter what.)
And if I were able to wish, I'd like to blacklist that microcode in
dracut so that it doesn't come anywhere near my system.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
