Re: [Xen-devel] [PATCH v2 06/14] x86/time.c: Scale host TSC in pvclock properly

[Haozhong Zhang <haozhong.zhang@xxxxxxxxx>]

On 12/29/15 18:22, Joao Martins wrote:
> 
> 
> On 12/10/2015 11:56 AM, Joao Martins wrote:
> > 
> > 
> > On 12/10/2015 12:23 AM, Haozhong Zhang wrote:
> >> On 12/08/15 14:21, Boris Ostrovsky wrote:
> >>> On 12/07/2015 08:52 PM, Haozhong Zhang wrote:
> >>>> On 12/07/15 13:14, Boris Ostrovsky wrote:
> >>>>> On 12/06/2015 03:58 PM, Haozhong Zhang wrote:
> >>>>>> This patch makes the pvclock return the scaled host TSC and
> >>>>>> corresponding scaling parameters to HVM domains if guest TSC is not
> >>>>>> emulated and TSC scaling is enabled.
> >>>>>>
> >>>>>> Signed-off-by: Haozhong Zhang <haozhong.zhang@xxxxxxxxx>
> >>>>> +Joao who has been staring at this code.
> >>>>>
> > Apologies for late response but I was out in the beginning of the week and 
> > was
> > still catching up.
> > 
> >>>>> Joao, can you run this series through your test with non-native 
> >>>>> frequency?
> >>>>> (http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg00683.html
> >>>>> provides an interface to set it in config file).
> >>>>>
> > OK, I will run it through my time warp tests.
> I have using these for a while now and so far I got no issues with a 
> non-native
> frequency [I don't have a Skylake processor in my possession to test it
> natively]. In addition I rebased my vdso tests on top of your series and no
> warps too. But will raise out any flags if I found anything wrong.
>

Thanks for the test!

Haozhong

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