feat(sme): enable SME functionality
This patch adds two new compile time options to enable SME in TF-A:
ENABLE_SME_FOR_NS and ENABLE_SME_FOR_SWD for use in non-secure and
secure worlds respectively. Setting ENABLE_SME_FOR_NS=1 will enable
SME for non-secure worlds and trap SME, SVE, and FPU/SIMD instructions
in secure context. Setting ENABLE_SME_FOR_SWD=1 will disable these
traps, but support for SME context management does not yet exist in
SPM so building with SPD=spmd will fail.
The existing ENABLE_SVE_FOR_NS and ENABLE_SVE_FOR_SWD options cannot
be used with SME as it is a superset of SVE and will enable SVE and
FPU/SIMD along with SME.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: Iaaac9d22fe37b4a92315207891da848a8fd0ed73
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index 9baa0c2..e751824 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -87,9 +87,14 @@
BL31_SOURCES += ${MPMM_SOURCES}
endif
+ifeq (${ENABLE_SME_FOR_NS},1)
+BL31_SOURCES += lib/extensions/sme/sme.c
+BL31_SOURCES += lib/extensions/sve/sve.c
+else
ifeq (${ENABLE_SVE_FOR_NS},1)
BL31_SOURCES += lib/extensions/sve/sve.c
endif
+endif
ifeq (${ENABLE_MPAM_FOR_LOWER_ELS},1)
BL31_SOURCES += lib/extensions/mpam/mpam.c