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Re: [Xen-devel] [for-4.7 v2 3/5] xen/arm: acpi: Fix SMP support when booting with ACPI

On Mon, Apr 11, 2016 at 02:33:35PM +0100, Julien Grall wrote:
> The variable enabled_cpus is used to know the number of CPU enabled in
> the MADT.
> Currently this variable is used to check the validity of the boot CPU.
> It will be considered invalid when "enabled_cpus > 1".
> However, this condition also means that multiple CPUs are present on the
> system. So secondary will never be brought up.
> The correct way to check the validity of the boot CPU is to use the
> variable bootcpu_valid.
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> Reviewed-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>


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