Re: [PATCH] x86/xen/time: set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()

2020-07-21 Thread Boris Ostrovsky
On 7/21/20 12:12 PM, Hayato Ohhashi wrote: > If the TSC frequency is known from the pvclock page, > the TSC frequency does not need to be recalibrated. > We can avoid recalibration by setting X86_FEATURE_TSC_KNOWN_FREQ. > > Signed-off-by: Hayato Ohhashi Reviewed-by: Boris Ostrovsky

[PATCH] x86/xen/time: set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()

2020-07-21 Thread Hayato Ohhashi
If the TSC frequency is known from the pvclock page, the TSC frequency does not need to be recalibrated. We can avoid recalibration by setting X86_FEATURE_TSC_KNOWN_FREQ. Signed-off-by: Hayato Ohhashi --- arch/x86/xen/time.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/xen/time.c