Re: [3/8] x86/tsc: Store and check TSC ADJUST MSR

From: Thomas Gleixner
Date: Mon Jan 30 2017 - 08:06:37 EST

On Mon, 30 Jan 2017, Henning Schild wrote:
> On Mon, 30 Jan 2017 11:20:25 +0100
> Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> > There is nothing you can ever be sure about, but I doubt that the
> > ADJUST MSR is going to vanish.
> That sounds very much like i expected. But assuming the MSR has come to
> stay, the problem should be solved for recent kernels and Intel-CPUs.
> The AMD-Manual from 12/16 does not mention that MSR. I do not have
> access to an AMD machine. But i can only assume that bigger machines
> also suffer from async TSCs and basically all fall back to HPET.