1 files changed, 54 insertions, 0 deletions
diff --git a/include/hw/s390x/tod.h b/include/hw/s390x/tod.h
new file mode 100644
index 000000000..0935e8508
--- /dev/null
+++ b/include/hw/s390x/tod.h
@@ -0,0 +1,54 @@
+/*
+ * TOD (Time Of Day) clock
+ *
+ * Copyright 2018 Red Hat, Inc.
+ * Author(s): David Hildenbrand <david@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef HW_S390_TOD_H
+#define HW_S390_TOD_H
+
+#include "hw/qdev-core.h"
+#include "tcg/s390-tod.h"
+#include "qom/object.h"
+
+typedef struct S390TOD {
+    uint8_t high;
+    uint64_t low;
+} S390TOD;
+
+#define TYPE_S390_TOD "s390-tod"
+OBJECT_DECLARE_TYPE(S390TODState, S390TODClass, S390_TOD)
+#define TYPE_KVM_S390_TOD TYPE_S390_TOD "-kvm"
+#define TYPE_QEMU_S390_TOD TYPE_S390_TOD "-qemu"
+
+struct S390TODState {
+    /* private */
+    DeviceState parent_obj;
+
+    /*
+     * Used by TCG to remember the time base. Used by KVM to backup the TOD
+     * while the TOD is stopped.
+     */
+    S390TOD base;
+    /* Used by KVM to remember if the TOD is stopped and base is valid. */
+    bool stopped;
+};
+
+struct S390TODClass {
+    /* private */
+    DeviceClass parent_class;
+    void (*parent_realize)(DeviceState *dev, Error **errp);
+
+    /* public */
+    void (*get)(const S390TODState *td, S390TOD *tod, Error **errp);
+    void (*set)(S390TODState *td, const S390TOD *tod, Error **errp);
+};
+
+void s390_init_tod(void);
+S390TODState *s390_get_todstate(void);
+
+#endif