| Date | Fri, 17 Nov 2017 23:49:41 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH 05/10] x86: jailhouse: Set up timekeeping |
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On Thu, 16 Nov 2017, Jan Kiszka wrote: > Calibrate the TSC and, where necessary, the APIC timer against the > TMTIMER. We need our own implementation as neither the PIC nor the HPET > are available, and the standard calibration routines try to make use of > them.
Why is this needed at all?
The host the frequency already. So this can be done w/o pmtimer and extra calibration routine.
Thanks,
tglx
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