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f87e54f73c
This patch removes RAS_FFH_SUPPORT macro which is the combination of ENABLE_FEAT_RAS and HANDLE_EA_EL3_FIRST_NS. Instead introduce an internal macro FFH_SUPPORT which gets enabled when platforms wants to enable lower EL EA handling at EL3. The internal macro FFH_SUPPORT will be automatically enabled if HANDLE_EA_EL3_FIRST_NS is enabled. FFH_SUPPORT along with ENABLE_FEAT_RAS will be used in source files to provide equivalent check which was provided by RAS_FFH_SUPPORT earlier. In generic code we needed a macro which could abstract both HANDLE_EA_EL3_FIRST_NS and RAS_FFH_SUPPORT macros that had limitations. Former was tied up with NS world only while the latter was tied to RAS feature. This is to allow Secure/Realm world to have their own FFH macros in future. Signed-off-by: Manish Pandey <manish.pandey2@arm.com> Change-Id: Ie5692ccbf462f5dcc3f005a5beea5aa35124ac73
21 lines
1.1 KiB
ReStructuredText
21 lines
1.1 KiB
ReStructuredText
Internal Build Options
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======================
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|TF-A| internally uses certain options that are not exposed directly through
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:ref:`build-options <build options>` but enabled or disabled indirectly and
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depends on certain options to be enabled or disabled.
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.. _build_options_internal:
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- ``CTX_INCLUDE_EL2_REGS``: This boolean option provides context save/restore
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operations when entering/exiting an EL2 execution context. This is of primary
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interest when Armv8.4-SecEL2 or RME extension is implemented.
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Default is 0 (disabled). This option will be set to 1 (enabled) when ``SPD=spmd``
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and ``SPMD_SPM_AT_SEL2`` is set or when ``ENABLE_RME`` is set to 1 (enabled).
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- ``FFH_SUPPORT``: This boolean option provides support to enable Firmware First
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handling (FFH) of External aborts and SError interrupts originating from lower
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ELs which gets trapped in EL3. This option will be set to 1 (enabled) if
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``HANDLE_EA_EL3_FIRST_NS`` is set. Currently only NS world routes EA to EL3 but
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in future when Secure/Realm wants to use FFH then they can introduce new macros
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which will enable this option implicitly.
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