Re: [Xen-users] GPLPV, clock drift and PVUSB in Windows XP HVM

[Radoslaw Szkodzinski <astralstorm@xxxxxxxxx>]

On Fri, Jun 29, 2012 at 9:45 AM, Eric Lindsey <eslindsey@xxxxxxxxx> wrote:
> I'm sorry for being unclear in my original message. I'm experiencing the 
> clock drift with and without the GPLPV drivers. However, I was surprised that 
> those drivers didn't include their own version of Linux's 
> independent_wallclock, which I presume takes care of the clock drift problem 
> in those operating systems (though I'll be the first to admit that's merely 
> an assumption and I've very little experience in this area). How can I solve 
> the clock drift problem, and keep my XP HVM synchronized with my dom0 
> hardware clock (which does not suffer from drift)?

Have you tried tsc_native=1 yet? This will emulate synced RDTSC.
It'd be a bug in Xen if it didn't notice your TSC is broken...

-- 
RadosÅaw SzkodziÅski

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