RTEMS | bsp/aarch64:SMP improvement on aarch64 (!113)

[Sebastian Huber (@sebhub)]

Sebastian Huber commented on a discussion on bsps/aarch64/shared/start/start.S: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/113#note_112208

 >  _el1_start:
 >  
 >  #ifdef RTEMS_SMP
 > -  /* Read MPIDR and get current processor index */
 > -  mrs x7, mpidr_el1
 > -  and x7, x7, #0xff
 > +  ldr x3, =aarch64_cpu_boot_params

Implementation 1. should be in a separate commit and not cause any regressions for existing BSPs. Implementation 2. should be in a follow up commit.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/113#note_112208
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