Re: [PATCH v5 2/2] x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation

[Jiri Kosina]

On Mon, 10 Sep 2018, Jiri Kosina wrote:

> > That looks much more palatable. One missing piece is the sysfs 
> > mitigation file for spectre v2. That should reflect STIPB state as well.
> 
> FWIW, we're missing a bit more in that area, namely RSB stuffing on 
> context switch, IBRS (even through only around fw) and IBPB; those are 
> only signalled in dmesg during bootup.

Nah, IBPB is actuall there, sorry. So I'll add reporting of STIBP + fixup 
the missing reporting of RSB_CTXSW for v6.

-- 
Jiri Kosina
SUSE Labs