TSPD: Register preempted SMC error code with EHF
An earlier patch extended ehf_allow_ns_preemption() API to also register
an error code to offer to Non-secure when a Yielding SMC is preempted by
SDEI interrupt. In TSPD's case, register the error code TSP_PREEMPTED.
Change-Id: I31992b6651f80694e83bc5092b044ef7a3eda690
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c
index c564f8b..3d06e0b 100644
--- a/services/spd/tspd/tspd_main.c
+++ b/services/spd/tspd/tspd_main.c
@@ -549,9 +549,10 @@
* preempt Secure execution. However, for
* yielding SMCs, we want preemption to happen;
* so explicitly allow NS preemption in this
- * case.
+ * case, and supply the preemption return code
+ * for TSP.
*/
- ehf_allow_ns_preemption();
+ ehf_allow_ns_preemption(TSP_PREEMPTED);
#endif
}
@@ -662,9 +663,10 @@
#if EL3_EXCEPTION_HANDLING
/*
* Allow the resumed yielding SMC processing to be preempted by
- * Non-secure interrupts.
+ * Non-secure interrupts. Also, supply the preemption return
+ * code for TSP.
*/
- ehf_allow_ns_preemption();
+ ehf_allow_ns_preemption(TSP_PREEMPTED);
#endif
/* We just need to return to the preempted point in