tests: add RTAS command in the protocol

Add a first test to validate the protocol:

- rtas/get-time-of-day compares the time
  from the guest with the time from the host.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/qtest.c b/qtest.c
index 649f7b2..22482cc 100644
--- a/qtest.c
+++ b/qtest.c
@@ -28,6 +28,9 @@
 #include "qemu/option.h"
 #include "qemu/error-report.h"
 #include "qemu/cutils.h"
+#ifdef TARGET_PPC64
+#include "hw/ppc/spapr_rtas.h"
+#endif
 
 #define MAX_IRQ 256
 
@@ -534,6 +537,20 @@
 
         qtest_send_prefix(chr);
         qtest_send(chr, "OK\n");
+#ifdef TARGET_PPC64
+    } else if (strcmp(words[0], "rtas") == 0) {
+        uint64_t res, args, ret;
+        unsigned long nargs, nret;
+
+        g_assert(qemu_strtoul(words[2], NULL, 0, &nargs) == 0);
+        g_assert(qemu_strtoull(words[3], NULL, 0, &args) == 0);
+        g_assert(qemu_strtoul(words[4], NULL, 0, &nret) == 0);
+        g_assert(qemu_strtoull(words[5], NULL, 0, &ret) == 0);
+        res = qtest_rtas_call(words[1], nargs, args, nret, ret);
+
+        qtest_send_prefix(chr);
+        qtest_sendf(chr, "OK %"PRIu64"\n", res);
+#endif
     } else if (qtest_enabled() && strcmp(words[0], "clock_step") == 0) {
         int64_t ns;