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

[Stefano Stabellini]

On Tue, 25 Mar 2014, Marc Zyngier wrote:
> 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>

Thanks!
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