[U-Boot] smp_kick_all_cpus() function's role

[TigerLiu at via-alliance.com]

Hi, Marc:
I am studying ARMv8's u-boot code with FVP model.
In do_nonsec_virt_switch() function in bootm.c :
It will call smp_kick_all_cpus() function :
It seems it would set GICD_SGIR[24] = 1, forward the interrupt to all
CPU interfaces except tha tof the processor that requested the
interrupt.

So, who generated the interrupt(which would be forwarded to other
cores)?

Best wishes,