arm-trusted-firmware/make_helpers
Manish Pandey 9202d51990 refactor(ras): replace RAS_EXTENSION with FEAT_RAS
The current usage of RAS_EXTENSION in TF-A codebase is to cater for two
things in TF-A :
1. Pull in necessary framework and platform hooks for Firmware first
   handling(FFH) of RAS errors.
2. Manage the FEAT_RAS extension when switching the worlds.

FFH means that all the EAs from NS are trapped in EL3 first and signaled
to NS world later after the first handling is done in firmware. There is
an alternate way of handling RAS errors viz Kernel First handling(KFH).
Tying FEAT_RAS to RAS_EXTENSION build flag was not correct as the
feature is needed for proper handling KFH in as well.

This patch breaks down the RAS_EXTENSION flag into a flag to denote the
CPU architecture `ENABLE_FEAT_RAS` which is used in context management
during world switch and another flag `RAS_FFH_SUPPORT` to pull in
required framework and platform hooks for FFH.

Proper support for KFH will be added in future patches.

BREAKING CHANGE: The previous RAS_EXTENSION is now deprecated. The
equivalent functionality can be achieved by the following
2 options:
 - ENABLE_FEAT_RAS
 - RAS_FFH_SUPPORT

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I1abb9ab6622b8f1b15712b12f17612804d48a6ec
2023-05-09 13:19:22 +01:00
..
tbbr refactor(build): distinguish BL2 as TF-A entry point and BL2 running at EL3 2023-03-15 11:43:14 +00:00
arch_features.mk refactor(ras): replace RAS_EXTENSION with FEAT_RAS 2023-05-09 13:19:22 +01:00
armv7-a-cpus.mk build_macros.mk: include assert and define loop macros 2020-09-14 09:27:53 -05:00
build_env.mk Use SPDX license identifiers 2017-05-03 09:39:28 +01:00
build_macros.mk Merge changes from topic "assert_boolean_set" into integration 2023-05-09 11:26:11 +02:00
cygwin.mk Use SPDX license identifiers 2017-05-03 09:39:28 +01:00
defaults.mk refactor(ras): replace RAS_EXTENSION with FEAT_RAS 2023-05-09 13:19:22 +01:00
msys.mk Use SPDX license identifiers 2017-05-03 09:39:28 +01:00
plat_helpers.mk Change PLATFORM_ROOT to TF_PLATFORM_ROOT 2018-03-05 14:18:04 +08:00
unix.mk Makefile: Fix verbose builds on Windows 2018-10-19 15:54:27 +01:00
windows.mk build: fix syntax error in semantic ver generation 2022-08-23 16:51:13 +01:00