Re: [Xen-devel] HPET enabled in BIOS, not presented as available_clocksource -- config, kernel code, &/or BIOS?

From: Valentin Vidic
Date: Sat May 13 2017 - 18:15:57 EST

On Sat, May 13, 2017 at 02:58:54PM -0700, PGNet Dev wrote:
> Does this perhaps imply that Xen correctly uses HPET
>
> (XEN) [VT-D] MSI HPET: 0000:f0:0f.0
> (XEN) Platform timer is 14.318MHz HPET

I think so, yes.

> but that Dom0 does not
>
> current_clocksource
> tsc

Try booting without 'hpet=force,verbose clocksource=hpet' and it should
select xen by default:

# dmesg | grep -i clocksource
[ 58.944215] Switched to clocksource xen

--
Valentin