stable/11 r329462 - Meltdown/Spectre MFC questions
Shawn Webb
shawn.webb at hardenedbsd.org
Sun Feb 18 16:50:24 UTC 2018
On Sun, Feb 18, 2018 at 05:04:55PM +0100, David Marec wrote:
> On 17.02.2018 20:47, Jeremy Chadwick wrote:
> > hw.ibrs_disable
> > - Description: Disable Indirect Branch Restricted Speculation
> > - Loader tunable and sysctl tunable (read-write)
> > - Integer
> > - Default value: unsure. Variable declaration has 1 but
> > SYSCTL_PROC() macro has 0.
> >
>
>
> Strange thing is that tweaking `hw.ibrs_disable` has no effect on
> `hw.ibrs_active` on my side.
Did you install the latest Intel microcode update?
Thanks,
--
Shawn Webb
Cofounder and Security Engineer
HardenedBSD
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