diff options
Diffstat (limited to 'arch/arm/cpu/armv8/transition.S')
| -rw-r--r-- | arch/arm/cpu/armv8/transition.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/transition.S b/arch/arm/cpu/armv8/transition.S index bbccf2b..adb9f35 100644 --- a/arch/arm/cpu/armv8/transition.S +++ b/arch/arm/cpu/armv8/transition.S @@ -13,6 +13,14 @@ ENTRY(armv8_switch_to_el2) switch_el x5, 1f, 0f, 0f 0: + cmp x4, #ES_TO_AARCH64 + b.eq 2f + /* + * When loading 32-bit kernel, it will jump + * to secure firmware again, and never return. + */ + bl armv8_el2_to_aarch32 +2: /* * x3 is kernel entry point or switch_to_el1 * if CONFIG_ARMV8_SWITCH_TO_EL1 is defined. @@ -32,3 +40,7 @@ ENTRY(armv8_switch_to_el1) br x3 1: armv8_switch_to_el1_m x3, x4, x5 ENDPROC(armv8_switch_to_el1) + +WEAK(armv8_el2_to_aarch32) + ret +ENDPROC(armv8_el2_to_aarch32) |