diff options
| -rw-r--r-- | spm/cactus/aarch64/cactus_entrypoint.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/spm/cactus/aarch64/cactus_entrypoint.S b/spm/cactus/aarch64/cactus_entrypoint.S index 1541063..5d9f9f0 100644 --- a/spm/cactus/aarch64/cactus_entrypoint.S +++ b/spm/cactus/aarch64/cactus_entrypoint.S @@ -22,6 +22,12 @@ func cactus_entrypoint /* Entry reason is primary EC cold boot */ mov x19, #1 secondary_cold_entry: + /* Saving parameter registers to temporary registers. */ + mov x10, x1 + mov x11, x2 + mov x12, x3 + mov x13, x4 + /* Entry reason is secondary EC cold boot */ mrs x0, mpidr_el1 bl platform_get_core_pos @@ -77,5 +83,13 @@ pie_fixup: /* Jump to the C entrypoint (it does not return) */ 0: mov x0, x19 + + /* Restoring parameter registers before jumping to cactus_main. */ + mov x1, x10 + mov x2, x11 + mov x3, x12 + mov x4, x13 + + /* And jump to the C entrypoint. */ b cactus_main endfunc cactus_entrypoint |