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Re: [PATCH v2 1/3] x86/time: change initiation of the calibration timer
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Fri, 5 Feb 2021 17:00:55 +0100
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On Mon, Feb 01, 2021 at 01:42:35PM +0100, Jan Beulich wrote:
> Setting the timer a second (EPOCH) into the future at a random point
> during boot (prior to bringing up APs and prior to launching Dom0) does
> not yield predictable results: The timer may expire while we're still
> bringing up APs (too early) or when Dom0 already boots (too late).
> Instead invoke the timer handler function explicitly at a predictable
> point in time, once we've established the rendezvous function to use
> (and hence also once all APs are online). This will, through the raising
> and handling of TIMER_SOFTIRQ, then also have the effect of arming the
> timer.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Thanks, Roger.
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