#include <bl31.h>
#include <context_mgmt.h>
#include <debug.h>
+#include <ehf.h>
#include <errno.h>
#include <mm_svc.h>
#include <platform.h>
VERBOSE("MM_COMMUNICATE: comm_size_address is not 0 as recommended.\n");
}
+ /*
+ * The current secure partition design mandates
+ * - at any point, only a single core can be
+ * executing in the secure partiton.
+ * - a core cannot be preempted by an interrupt
+ * while executing in secure partition.
+ * Raise the running priority of the core to the
+ * interrupt level configured for secure partition
+ * so as to block any interrupt from preempting this
+ * core.
+ */
+ ehf_activate_priority(PLAT_SP_PRI);
+
/* Save the Normal world context */
cm_el1_sysregs_context_save(NON_SECURE);
cm_el1_sysregs_context_restore(NON_SECURE);
cm_set_next_eret_context(NON_SECURE);
+ /*
+ * Exited from secure partition. This core can take
+ * interrupts now.
+ */
+ ehf_deactivate_priority(PLAT_SP_PRI);
+
SMC_RET1(handle, rc);
}