2.6. Internal Build Options

TF-A internally uses certain options that are not exposed directly through build-options but enabled or disabled indirectly and depends on certain options to be enabled or disabled.

• CTX_INCLUDE_EL2_REGS: This boolean option provides context save/restore operations when entering/exiting an EL2 execution context. This is of primary interest when Armv8.4-SecEL2 or RME extension is implemented. Default is 0 (disabled). This option will be set to 1 (enabled) when SPD=spmd and SPMD_SPM_AT_SEL2 is set or when ENABLE_RME is set to 1 (enabled).