1Internal Build Options 2====================== 3 4|TF-A| internally uses certain options that are not exposed directly through 5:ref:`build-options <build options>` but enabled or disabled indirectly and 6depends on certain options to be enabled or disabled. 7 8.. _build_options_internal: 9 10- ``CTX_INCLUDE_EL2_REGS``: This boolean option provides context save/restore 11 operations when entering/exiting an EL2 execution context. This is of primary 12 interest when Armv8.4-SecEL2 or RME extension is implemented. 13 Default is 0 (disabled). This option will be set to 1 (enabled) when ``SPD=spmd`` 14 and ``SPMD_SPM_AT_SEL2`` is set or when ``ENABLE_RME`` is set to 1 (enabled). 15