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feat(fvp): enable FEAT_FGT by default

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FEAT_FGT is one of the features for which Linux necessarily requires EL3
enablement, when the feature is present on a PE.

To cover the effect of different FVP command line parameters, include
the feature into the standard FVP build, but use FEAT_STATE_CHECK, to
always do runtime checks before accessing feature specific registers.

This prevents a Linux crash when the FVP is called with FEAT_FGT
enabled.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: I55fbb2706aefbc3ab67c476e3f8b6ea74ae0d66c
This commit is contained in:
Andre Przywara 2022-11-10 14:42:07 +00:00
parent bb7b85a397
commit 15107daad6
1 changed files with 3 additions and 0 deletions
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3
plat/arm/board/fvp/platform.mk
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@ -463,6 +463,9 @@ ENABLE_SYS_REG_TRACE_FOR_NS := 1
# enable trace filter control registers access to NS by default
ENABLE_TRF_FOR_NS := 1
# Linux relies on EL3 enablement if those features are present
ENABLE_FEAT_FGT := 2
ifeq (${SPMC_AT_EL3}, 1)
PLAT_BL_COMMON_SOURCES += plat/arm/board/fvp/fvp_el3_spmc.c
endif