> -void __ref xen_init_time_ops(void)
> +void __init xen_init_time_ops(void)
> {
> pv_time_ops = xen_time_ops;
>
> @@ -542,17 +542,11 @@ void __init xen_hvm_init_time_ops(void)
> return;
>
> if (!xen_feature(XENFEAT_hvm_safe_pvclock)) {
> - printk(KERN_INFO "Xen doesn't support pvclock on HVM,"
> - "disable pv timer\n");
> + pr_info("Xen doesn't support pvclock on HVM, disable pv timer");
> return;
> }
> -
> - pv_time_ops = xen_time_ops;
> + xen_init_time_ops();
> x86_init.timers.setup_percpu_clockev = xen_time_init;
> x86_cpuinit.setup_percpu_clockev = xen_hvm_setup_cpu_clockevents;
Boris reported a bug on HVM, which causes a panic in
x86_late_time_init(). It is introduced here: xen_init_time_ops() sets:
x86_init.timers.timer_init = xen_time_init; which was hpet_time_init()
in HVM. However, we might not even need hpet here. Thus, adding
x86_init.timers.timer_init = x86_init_noop; to the end of
xen_hvm_init_time_ops() should be sufficient.
Thank you,
Pavel
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