[RFC,v4,04/14] hw/s390x: tod: make explicit checks for accelerators when initializing

Commit Message

Al Cho May 24, 2021, 2:52 a.m. UTC

replace general "else" with specific checks for each possible accelerator.

Handle qtest as a NOP, and error out for an unknown accelerator used in
combination with tod.

Signed-off-by: Claudio Fontana <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
Reviewed-by: Cornelia Huck <[e-mail]>
Signed-off-by: Cho, Yu-Chen <[e-mail]>
---
 hw/s390x/tod.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

Patch

diff --git a/hw/s390x/tod.c b/hw/s390x/tod.c
index 3c2979175e..fd5a36bf24 100644
--- a/hw/s390x/tod.c
+++ b/hw/s390x/tod.c
@@ -14,6 +14,8 @@ 
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "sysemu/kvm.h"
+#include "sysemu/tcg.h"
+#include "sysemu/qtest.h"
 #include "migration/qemu-file-types.h"
 #include "migration/register.h"
 
@@ -23,8 +25,13 @@  void s390_init_tod(void)
 
     if (kvm_enabled()) {
         obj = object_new(TYPE_KVM_S390_TOD);
-    } else {
+    } else if (tcg_enabled()) {
         obj = object_new(TYPE_QEMU_S390_TOD);
+    } else if (qtest_enabled()) {
+        return;
+    } else {
+        error_report("current accelerator not handled in s390_init_tod!");
+        abort();
     }
     object_property_add_child(qdev_get_machine(), TYPE_S390_TOD, obj);
     object_unref(obj);