Re: [PATCH v2 1/3] KVM: x86: implement KVM_{GET|SET}_TSC_STATE

From: Peter Zijlstra
Date: Thu Dec 10 2020 - 07:15:34 EST


On Thu, Dec 10, 2020 at 12:42:36PM +0100, Paolo Bonzini wrote:
> On 07/12/20 18:41, Thomas Gleixner wrote:
> > Right this happens still occasionally, but for quite some time this is
> > 100% firmware sillyness and not a fundamental property of the hardware
> > anymore.
>
> It's still a fundamental property of old hardware. Last time I tried to
> kill support for processors earlier than Core 2, I had to revert it. That's
> older than Nehalem.

Core2 doesn't use TSC for timekeeping anyway. KVM shouldn't either.