Re: [PATCH v9 4/5] arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops

[Marc Zyngier]

On 25/03/14 11:19, Stefano Stabellini wrote:
> On Mon, 17 Feb 2014, Catalin Marinas wrote:
>> On Mon, Feb 17, 2014 at 12:25:42PM +0000, Stefano Stabellini wrote:
>>> On Thu, 9 Jan 2014, Stefano Stabellini wrote:
>>>> Introduce CONFIG_PARAVIRT and PARAVIRT_TIME_ACCOUNTING on ARM64.
>>>> Necessary duplication of paravirt.h and paravirt.c with ARM.
>>>>
>>>> The only paravirt interface supported is pv_time_ops.steal_clock, so no
>>>> runtime pvops patching needed.
>>>>
>>>> This allows us to make use of steal_account_process_tick for stolen
>>>> ticks accounting.
>>>>
>>>> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
>>>> CC: will.deacon@xxxxxxx
>>>> CC: nico@xxxxxxxxxx
>>>> CC: marc.zyngier@xxxxxxx
>>>> CC: cov@xxxxxxxxxxxxxx
>>>> CC: arnd@xxxxxxxx
>>>> CC: olof@xxxxxxxxx
>>>> CC: Catalin.Marinas@xxxxxxx
>>>
>>> Catalin, Will, are you happy with this patch for 3.15?
>>
>> It's pretty small and looks fine to me. However, I would like someone
>> with more virtualisation experience than me to ack it (e.g. Marc Z).
> 
> Ping? Marc, could you please give it a review?

Yup, that looks OK to me. It's a generic feature anyway, so I don't see
any harm in enabling it for Xen. We may also use it for KVM at some point.

Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>

	M.
-- 
Jazz is not dead. It just smells funny...
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