Merge tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/lin…

…ux/kernel/git/tip/tip Pull x86 timer update from Ingo Molnar: "Set the X86_FEATURE_TSC_KNOWN_FREQ flag for Xen guests, to avoid recalibration" * tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/xen/time: Set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()
chewitt · Aug 4, 2020 · a92ad11 · a92ad11
2 parents 5183a61 + 898ec52
commit a92ad11
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
@@ -39,6 +39,7 @@ static unsigned long xen_tsc_khz(void)
 	struct pvclock_vcpu_time_info *info =
 		&HYPERVISOR_shared_info->vcpu_info[0].time;
 
+	setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
 	return pvclock_tsc_khz(info);
 }