Re: [Xen-devel] [PATCH 01/13] x86/time.c: Use system time to calculate elapsed_nsec in tsc_get_info()

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 14.10.15 at 12:00, <haozhong.zhang@xxxxxxxxx> wrote:
> Sounds reasonable. A better patch 2 may look like
> 
> - *gtsc_khz = cpu_khz;
> + if ( is_hvm_domain(d) && cpu_has_tsc_ratio )
> +     *gtsc_khz = d->arch.tsc_khz;
> + else
> +     *gtsc_khz = cpu_khz;
> 
> which gets d->arch.tsc_khz only if TSC ratio is used, otherwise it
> follows the existing behavior.

Except that it needs to use has_hvm_container_domain() (again to
match tsc_set_info()).

Jan


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