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feat(fvp): enable FEAT_HCX by default

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FEAT_HCX 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_HCX
enabled.

Change-Id: I01aaed15c5a6850176d092b2f0157744fe0a9e13
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Andre Przywara 2022-11-10 14:42:07 +00:00
parent c5a3ebbd3a
commit 2e1241888e
1 changed files with 1 additions and 0 deletions
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1
plat/arm/board/fvp/platform.mk
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@ -465,6 +465,7 @@ ENABLE_TRF_FOR_NS := 1
# Linux relies on EL3 enablement if those features are present
ENABLE_FEAT_FGT := 2
ENABLE_FEAT_HCX := 2
ifeq (${SPMC_AT_EL3}, 1)
PLAT_BL_COMMON_SOURCES += plat/arm/board/fvp/fvp_el3_spmc.c