feat(trbe): introduce trbe_disable() function
This patch adds trbe_disable() which disables Trace buffer access
from lower ELs in all security state. This function makes Secure
state the owner of Trace buffer and access from EL2/EL1 generate
trap exceptions to EL3.
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: If3e3bd621684b3c28f44c3ed2fe3df30b143f8cd
(cherry picked from commit b36e975ea374589270fc4010aa247e1e56432bda)
diff --git a/include/lib/extensions/trbe.h b/include/lib/extensions/trbe.h
index 0bed433..ae977a6 100644
--- a/include/lib/extensions/trbe.h
+++ b/include/lib/extensions/trbe.h
@@ -7,10 +7,16 @@
#ifndef TRBE_H
#define TRBE_H
+#include <context.h>
+
#if ENABLE_TRBE_FOR_NS
void trbe_init_el3(void);
void trbe_init_el2_unused(void);
+void trbe_disable(void);
#else
+static inline void trbe_disable(void)
+{
+}
static inline void trbe_init_el3(void)
{
}