Re: [Patch -v4 1/4] Migrate shutdown/reboot to boot cpu.

[Ingo Molnar]

* Borislav Petkov <bp@xxxxxxxxx> wrote:

> On Wed, Apr 17, 2013 at 09:46:53AM +0200, Ingo Molnar wrote:
>
> > What you mention here should indeed already be handled by the architecture 
> > hotplug code (for example on x86 the boot CPU cannot be hot-removed).
> 
> Supposedly, some new Intels (I think Ivybridge or so) can actually be 
> hot-removed.

There are WIP patches in existence that remove the limitations on the kernel side, 
but they are not upstream yet, so currently the constraint exists upstream.

Thanks,

	Ingo
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