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authorJeenu Viswambharan <jeenu.viswambharan@arm.com>2018-07-31 16:13:33 +0100
committerJeenu Viswambharan <jeenu.viswambharan@arm.com>2018-08-20 07:32:19 +0100
commit5f8359188008aff6a2a8e936003827ae771ed99f (patch)
treefd4013c80cb98e6a0ff2160d6d645cc534f23654 /bl31/bl31.mk
parent4e45fbd626e199d94116658b2a92e2ab6c0f1f07 (diff)
downloadtrusted-firmware-a-5f8359188008aff6a2a8e936003827ae771ed99f.tar.gz
AArch64: Enable MPAM for lower ELs
Memory Partitioning And Monitoring is an Armv8.4 feature that enables various memory system components and resources to define partitions. Software running at various ELs can then assign themselves to the desired partition to control their performance aspects. With this patch, when ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows lower ELs to access their own MPAM registers without trapping to EL3. This patch however doesn't make use of partitioning in EL3; platform initialisation code should configure and use partitions in EL3 if required. Change-Id: I5a55b6771ccaa0c1cffc05543d2116b60cbbcdcd Co-authored-by: James Morse <james.morse@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Diffstat (limited to 'bl31/bl31.mk')
-rw-r--r--bl31/bl31.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index bff9653865..c99b637def 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -63,6 +63,10 @@ ifeq (${ENABLE_SVE_FOR_NS},1)
BL31_SOURCES += lib/extensions/sve/sve.c
endif
+ifeq (${ENABLE_MPAM_FOR_LOWER_ELS},1)
+BL31_SOURCES += lib/extensions/mpam/mpam.c
+endif
+
ifeq (${WORKAROUND_CVE_2017_5715},1)
BL31_SOURCES += lib/cpus/aarch64/wa_cve_2017_5715_bpiall.S \
lib/cpus/aarch64/wa_cve_2017_5715_mmu.S