Re: [PATCH v9 03/12] x86, topology: Don't offline CPU0 if any PICirq can not be migrated out of it

From: Borislav Petkov
Date: Tue Oct 16 2012 - 13:03:05 EST

On Fri, Oct 12, 2012 at 09:09:40AM -0700, Fenghua Yu wrote:
> From: Fenghua Yu <fenghua.yu@xxxxxxxxx>
> If CONFIG_BOOTPARAM_HOTPLUG_CPU is turned on, CPU0 hotplug feature is enabled
> by default.
> If CONFIG_BOOTPARAM_HOTPLUG_CPU is not turned on, CPU0 hotplug feature is not
> enabled by default. The kernel parameter cpu0_hotplug can enable CPU0 hotplug
> feature at boot.
> Currently the feature is supported on Intel platforms only.
> Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx>
> ---
> arch/x86/kernel/topology.c | 50 +++++++++++++++++++++++++++++++++++++------

It is just me or is this whole change better suited for


where cpu-specific stuff lives anyway?


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