Re: [PATCH 3/7] x86/enter: Use IBRS on syscall and interrupts

Thomas Gleixner
2018-01-05T13:35:45Z

On Thu, 4 Jan 2018, Tim Chen wrote:

> Set IBRS upon kernel entrance via syscall and interrupts. Clear it
> upon exit.

I have no idea on which kernel this is supposed to apply. It fails on Linus
tree and on tip x86/pti.

Can you please finally ditch the broken and outdated version of PTI on
which this is based on? I really wonder how this stuff is developed and
tested when its missing essential fixes.

Please post patches against tip x86/pti where the lastest fixes and patches
concerning this mess are staged for both Linus and 4.14.stable

Thanks,

tglx