[PATCH v3 00/12] arm64: Add HOTPLUG_PARALLEL support for secondary CPUs

[Shrikanth Hegde]

On 6/24/26 2:55 PM, Jinjie Ruan wrote:
> Support for parallel secondary CPU bringup is already utilized by x86,
> MIPS, and RISC-V. This patch brings this capability to the arm64
> architecture.
> 
> Introduce CONFIG_HOTPLUG_PARALLEL_SMT to avoid primary SMT threads
> to boot first constraint.
> 
> And add a 'cpu' parameter to update_cpu_boot_status() to allow updating
> the boot status at a per-CPU granularity during parallel bringup.
> 
> Rework the global `secondary_data` and `__early_cpu_boot_status` accessed
> during early boot into per-CPU arrays to allow secondary CPUs to boot
> in parallel.
> 

Shouldn't this be called CONFIG_BRINGUP_PARALLEL instead?
Hotplug usually means disable/enable CPU at runtime.