fix(ras): restrict RAS support for NS world
Current RAS framework in TF-A only supports handling errors originating
from NS world but the HANDLE_EA_EL3_FIRST flag configures it for all
lower Els. To make the current design of RAS explicit, rename this macro
to HANDLE_EA_EL3_FIRST_NS and set EA bit in scr_el3 only when
switching to NS world.
Note: I am unaware of any platform which traps errors originating in
Secure world to EL3, if there is any such platform then it need to
be explicitly implemented in TF-A
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: If58eb201d8fa792c16325c85c26056e9b409b750
diff --git a/common/aarch64/debug.S b/common/aarch64/debug.S
index d105d08..742e022 100644
--- a/common/aarch64/debug.S
+++ b/common/aarch64/debug.S
@@ -168,7 +168,7 @@
mrs x0, currentel
ubfx x0, x0, #MODE_EL_SHIFT, #MODE_EL_WIDTH
cmp x0, #MODE_EL3
-#if !HANDLE_EA_EL3_FIRST
+#if !HANDLE_EA_EL3_FIRST_NS
ldr x0, [sp], #0x10
b.eq el3_panic
#else
@@ -184,7 +184,7 @@
to_panic_common:
ldr x0, [sp], #0x10
-#endif /* HANDLE_EA_EL3_FIRST */
+#endif /* HANDLE_EA_EL3_FIRST_NS */
#endif /* CRASH_REPORTING */
panic_common: