Re: [PATCH 4/4] x86/pti: Do not enable PTI on fixed Intel processors

From: Thomas Gleixner
Date: Sat Jan 20 2018 - 15:13:21 EST




On Sat, 20 Jan 2018, Thomas Gleixner wrote:

> On Sat, 20 Jan 2018, David Woodhouse wrote:
>
> > When they advertise the IA32_ARCH_CAPABILITIES MSR and it has the RDCL_NO
> > bit set, they don't need KPTI either.
>
> Do they exist today? And do we have documentation for that new MSR already?

Scratch the seconds question. It's in that spec mitigations PDF.

The first question stands.

Thanks,

tglx