Re: [PATCH] x86/bugs: Allow STIBP with IBRS

From: Borislav Petkov
Date: Mon Feb 20 2023 - 14:20:51 EST


On Mon, Feb 20, 2023 at 11:09:08AM -0800, Josh Poimboeuf wrote:
> No it was supposed to be "no STIBP with *eIBRS*".

Ok, good.

> As far as I can tell, that document was never updated to describe
> spectre_v2=ibrs in the first place. That would be a whole 'nother patch
> which I'm not volunteering for. Nice try ;-)

What do you think the maintainers are for? To clean up after
people... ;-\

As a matter of fact, updating the documentation is already on my
ever-growing TODO list.

But for this patch I'd like to ask whoever of you does it, to add a one
or two sentences about why we need to allow STIBP selection with IBRS.

The rest of the documentation we'll flesh out in time.

Thx.

--
Regards/Gruss,
Boris.

https://people.kernel.org/tglx/notes-about-netiquette