feat(brbe): add BRBE support for NS world
This patch enables access to the branch record buffer control registers
in non-secure EL2 and EL1 using the new build option ENABLE_BRBE_FOR_NS.
It is disabled for all secure world, and cannot be used with ENABLE_RME.
This option is disabled by default, however, the FVP platform makefile
enables it for FVP builds.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I576a49d446a8a73286ea6417c16bd0b8de71fca0
diff --git a/lib/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c
index 47e7d8c..449f120 100644
--- a/lib/el3_runtime/aarch64/context_mgmt.c
+++ b/lib/el3_runtime/aarch64/context_mgmt.c
@@ -20,6 +20,7 @@
#include <lib/el3_runtime/context_mgmt.h>
#include <lib/el3_runtime/pubsub_events.h>
#include <lib/extensions/amu.h>
+#include <lib/extensions/brbe.h>
#include <lib/extensions/mpam.h>
#include <lib/extensions/sme.h>
#include <lib/extensions/spe.h>
@@ -469,6 +470,10 @@
trbe_enable();
#endif /* ENABLE_TRBE_FOR_NS */
+#if ENABLE_BRBE_FOR_NS
+ brbe_enable();
+#endif /* ENABLE_BRBE_FOR_NS */
+
#if ENABLE_SYS_REG_TRACE_FOR_NS
sys_reg_trace_enable(ctx);
#endif /* ENABLE_SYS_REG_TRACE_FOR_NS */