Re: [Xen-devel] [PATCH 2/2] xen/arm: Use PSCI-0.2 for machine_halt/restart by default

[Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>]

On 10/02/2014 05:54 AM, Julien Grall wrote:
> Hi Suravee,
>
> On 10/01/2014 09:02 PM, suravee.suthikulpanit@xxxxxxx wrote:
> >   void machine_halt(void)
> >   {
> > +    int timeout = 10;
> > +
> >       watchdog_disable();
> >       console_start_sync();
> >       local_irq_enable();
> >       smp_call_function(halt_this_cpu, NULL, 0);
> > +    local_irq_disable();
> > +
> > +    /* Wait at most another 10ms for all other CPUs to go offline. */
> > +    while ( (num_online_cpus() > 1) && (timeout-- > 0) )
> > +        mdelay(1);
> > +
> This doesn't look like PSCI specific. Can you explain in the commit
> message why you need to add this new block of code?
>
> Regards,
It's not PSCI specific. I was just trying to handle the graceful 
shutdown similar to the code flow in machine_restart. If you think it's 
not necessary, I can take this out.
Suravee

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