1*f1910cc1SGovindraj RajaInternal Build Options 2*f1910cc1SGovindraj Raja====================== 3*f1910cc1SGovindraj Raja 4*f1910cc1SGovindraj Raja|TF-A| internally uses certain options that are not exposed directly through 5*f1910cc1SGovindraj Raja:ref:`build-options <build options>` but enabled or disabled indirectly and 6*f1910cc1SGovindraj Rajadepends on certain options to be enabled or disabled. 7*f1910cc1SGovindraj Raja 8*f1910cc1SGovindraj Raja.. _build_options_internal: 9*f1910cc1SGovindraj Raja 10*f1910cc1SGovindraj Raja- ``CTX_INCLUDE_EL2_REGS``: This boolean option provides context save/restore 11*f1910cc1SGovindraj Raja operations when entering/exiting an EL2 execution context. This is of primary 12*f1910cc1SGovindraj Raja interest when Armv8.4-SecEL2 or RME extension is implemented. 13*f1910cc1SGovindraj Raja Default is 0 (disabled). This option will be set to 1 (enabled) when ``SPD=spmd`` 14*f1910cc1SGovindraj Raja and ``SPMD_SPM_AT_SEL2`` is set or when ``ENABLE_RME`` is set to 1 (enabled). 15