thermosphere: add proper memory/instruction barriers for breakpoint stuff

2020-01-09 22:47:22 +00:00
parent 0dd5f1f6d4
commit edb942a032
6 changed files with 19 additions and 3 deletions
--- a/thermosphere/src/single_step.c
+++ b/thermosphere/src/single_step.c
@@ -56,6 +56,7 @@ void singleStepSetNextState(ExceptionStackFrame *frame, SingleStepState state)
    }

    SET_SYSREG(mdscr_el1, mdscr);
+    __isb(); // TRM-mandated
 }

 void handleSingleStep(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr)