Re: VMX Preemption Timer appears to be buggy on SKX, CLX, and ICX

[Jim Mattson]

On Thu, May 14, 2026 at 11:35 PM Chao Gao <chao.gao@xxxxxxxxx> wrote:
>
> >> EMR158. VMX-Preemption Timer May Expire Earlier With Certain Large Timer Values
> >
> >I assume the same erratum applies to previous generations as well?
>
> Yes.

This test still fails on our SKX, CLX, and ICX systems.

Sean,

Were you thinking of enforcing a cap on delta_tsc in vmx_set_hv_timer()?