Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 79 insertions, 0 deletions

diff --git a/include/hw/s390x/storage-attributes.h b/include/hw/s390x/storage-attributes.h
new file mode 100644
index 000000000..5239eb538
--- /dev/null
+++ b/include/hw/s390x/storage-attributes.h
@@ -0,0 +1,79 @@
+/*
+ * s390 storage attributes device
+ *
+ * Copyright 2016 IBM Corp.
+ * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef S390_STORAGE_ATTRIBUTES_H
+#define S390_STORAGE_ATTRIBUTES_H
+
+#include "hw/qdev-core.h"
+#include "monitor/monitor.h"
+#include "qom/object.h"
+
+#define TYPE_S390_STATTRIB "s390-storage_attributes"
+#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
+#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
+
+OBJECT_DECLARE_TYPE(S390StAttribState, S390StAttribClass, S390_STATTRIB)
+
+struct S390StAttribState {
+    DeviceState parent_obj;
+    uint64_t migration_cur_gfn;
+    bool migration_enabled;
+};
+
+
+struct S390StAttribClass {
+    DeviceClass parent_class;
+    /* Return value: < 0 on error, or new count */
+    int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
+                      uint32_t count, uint8_t *values);
+    int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+                       uint32_t count, uint8_t *values);
+    int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+                      uint32_t count, uint8_t *values);
+    void (*synchronize)(S390StAttribState *sa);
+    int (*set_migrationmode)(S390StAttribState *sa, bool value);
+    int (*get_active)(S390StAttribState *sa);
+    long long (*get_dirtycount)(S390StAttribState *sa);
+};
+
+typedef struct QEMUS390StAttribState QEMUS390StAttribState;
+DECLARE_INSTANCE_CHECKER(QEMUS390StAttribState, QEMU_S390_STATTRIB,
+                         TYPE_QEMU_S390_STATTRIB)
+
+struct QEMUS390StAttribState {
+    S390StAttribState parent_obj;
+};
+
+typedef struct KVMS390StAttribState KVMS390StAttribState;
+DECLARE_INSTANCE_CHECKER(KVMS390StAttribState, KVM_S390_STATTRIB,
+                         TYPE_KVM_S390_STATTRIB)
+
+struct KVMS390StAttribState {
+    S390StAttribState parent_obj;
+    uint64_t still_dirty;
+    uint8_t *incoming_buffer;
+};
+
+void s390_stattrib_init(void);
+
+#ifdef CONFIG_KVM
+Object *kvm_s390_stattrib_create(void);
+#else
+static inline Object *kvm_s390_stattrib_create(void)
+{
+    return NULL;
+}
+#endif
+
+void hmp_info_cmma(Monitor *mon, const QDict *qdict);
+void hmp_migrationmode(Monitor *mon, const QDict *qdict);
+
+#endif /* S390_STORAGE_ATTRIBUTES_H */