[Xen-users] Getting synchronized time between domains on x86

[Jintack Lim <jintack@xxxxxxxxxxxxxxx>]

Hi,

Is there any (easy) way to get synchronized time between domains(PV
and HVM) on different physical cores on x86?
On ARM architecture, reading CNTPCT_EL0 register gave me synchronous
time across different physical cpu.

On x86, I have two domains, one is Dom0(PV), and the other is DomU(HVM).
They are running on different set of cores, and I'd like to get
synchronous time between them.
I just read tsc register by calling rdtscll(), but it was not
synchronized between them.

Cheers,
Jintack


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