target-arm: Log the target EL when taking exceptions

Log the target EL when taking exceptions. This is useful when
debugging guest SW or QEMU itself while transitioning through
the various ELs.

Signed-off-by: Edgar E. Iglesias <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
Message-id: 1441311266[email protected]
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Peter Maydell <[email protected]>

diff --git a/target-arm/helper-a64.c b/target-arm/helper-a64.c
index 02fc9b4a298fb1b5a434056e7ba73a04debb1c0b..2c7a645f669e77368aab8e2d893d39b51477e9db 100644 (file)
--- a/target-arm/helper-a64.c
+++ b/target-arm/helper-a64.c
@@ -478,7 +478,8 @@ void aarch64_cpu_do_interrupt(CPUState *cs)
     }
 
     arm_log_exception(cs->exception_index);
-    qemu_log_mask(CPU_LOG_INT, "...from EL%d\n", arm_current_el(env));
+    qemu_log_mask(CPU_LOG_INT, "...from EL%d to EL%d\n", arm_current_el(env),
+                  new_el);
     if (qemu_loglevel_mask(CPU_LOG_INT)
         && !excp_is_internal(cs->exception_index)) {
         qemu_log_mask(CPU_LOG_INT, "...with ESR 0x%" PRIx32 "\n",