I'm adding some EBBR text around the CPU state at boot and I've lost track of what is being done for multicore bringup. What is the current state-of-the-art for multicore boot protocol when PSCI isn't available?
SBBR allows for the MP Boot Protocol; with the intend of phasing it out:
https://acpica.org/sites/acpica/files/MP%20Startup%20for%20ARM%20platforms.d...
The kernel documents the spin table method:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree...
What are the cool kids currently doing here?
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