Re: [kvm-unit-tests] Running some job on secondary cpus on x86 like ARM?

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On Wed, Jan 30, 2019 at 5:51 AM Andrew Jones <drjones@xxxxxxxxxx> wrote:
>
> On Wed, Jan 30, 2019 at 12:03:58AM -0500, Jintack Lim wrote:
> > Hi,
> >
> > I wonder if there's a way to run some job on the secondary cpus on
> > x86. ARM code has a function smp_boot_secondary() for that purpose. I
> > don't seem to find a counterpart on x86. I only see that the secondary
> > cpus on x86 do nothing but handling interrupts.
> >
> Hi Jintack,
>
> Check out the on_cpu* API which x86 supports (see lib/x86/smp.h)

Thanks, drew. But I thought it was mostly to run a function on a cpu
as an ipi interrupt handler. What I would like to do is to run some
job on a cpu in the background (e.g. while loop) while it can also
receive IPI and handle it. Can I do that with on_cpu*() APIs?

>
> Thanks,
> drew
>




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