[U-Boot] [ U-Boot ] armv8/start.S : what's the difference between CONFIG_ARMV8_SPIN_TABLE and CONFIG_ARMV8_MULTIENTRY

Hi all

I am new to armv8's uboot and when I research codes about armv8/start.S I'm confused by two option: CONFIG_ARMV8_SPIN_TABLE and CONFIG_ARMV8_MULTIENTRY Both option have the same function which cause slave CPUS to enter standby mode, so why we have the two option for this case? What's the difference between them?

Any feedback would be appreciate.

Thanks, Jay