Re: [PATCH v11 5/5] xen/arm: account for stolen ticks

From	Mark Rutland <mark.rutland@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v11 5/5] xen/arm: account for stolen ticks
Date	2015-11-05 18:00 +0100
Message-ID	<qrw3h-Mt-33@gated-at.bofh.it> (permalink)
References	<qrvTA-IK-37@gated-at.bofh.it> <qrw3i-Mt-35@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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>  static void xen_percpu_init(void)
>  {
>  	struct vcpu_register_vcpu_info info;
> @@ -104,6 +120,8 @@ static void xen_percpu_init(void)
>  	BUG_ON(err);
>  	per_cpu(xen_vcpu, cpu) = vcpup;
>  
> +	xen_setup_runstate_info(cpu);

Does the runstate memory area get unregsitered when a kernel tears
things down, or is kexec somehow inhibited for xen guests?

i couldn't spot either happening, but I may have missed it.

Mark.

> +
>  after_register_vcpu_info:
>  	enable_percpu_irq(xen_events_irq, 0);
>  	put_cpu();
> @@ -271,6 +289,9 @@ static int __init xen_guest_init(void)
>  
>  	register_cpu_notifier(&xen_cpu_notifier);
>  
> +	pv_time_ops.steal_clock = xen_stolen_accounting;
> +	static_key_slow_inc(&paravirt_steal_enabled);
> +
>  	return 0;
>  }
>  early_initcall(xen_guest_init);
> -- 
> 1.7.10.4
> 
> 
> _______________________________________________
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> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 
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Re: [PATCH v11 5/5] xen/arm: account for stolen ticks Mark Rutland <mark.rutland@arm.com> - 2015-11-05 18:00 +0100
  Re: [PATCH v11 5/5] xen/arm: account for stolen ticks Mark Rutland <mark.rutland@arm.com> - 2015-11-06 13:00 +0100
    Re: [PATCH v11 5/5] xen/arm: account for stolen ticks Vitaly Kuznetsov <vkuznets@redhat.com> - 2015-11-06 14:30 +0100
  Re: [PATCH v11 5/5] xen/arm: account for stolen ticks Vitaly Kuznetsov <vkuznets@redhat.com> - 2015-11-06 14:20 +0100

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