Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue, 2020-12-15

* qdev code cleanup
* Convert some QOM instance properties to class properties
* Update git URLs on MAINTAINERS

# gpg: Signature made Tue 15 Dec 2020 15:18:47 GMT
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (25 commits)
  MAINTAINERS: Update my git repository URLs
  qdev: Move UUID property to qdev-properties-system.c
  qdev: Make qdev_propinfo_get_uint16() static
  qdev: Make error_set_from_qdev_prop_error() get Object* argument
  qdev: Make check_prop_still_unset() get Object* argument
  qdev: Make qdev_find_global_prop() get Object* argument
  qdev: Make qdev_get_prop_ptr() get Object* arg
  qdev: Make bit_prop_set() get Object* argument
  qdev: Make PropertyInfo.print method get Object* argument
  qdev: Don't use dev->id on set_size32() error message
  sparc: Check dev->realized at sparc_set_nwindows()
  qdev: Check dev->realized at set_size()
  qdev: Move property code to qdev-properties.[ch]
  cpu: Move cpu_common_props to hw/core/cpu.c
  cs4231: Get rid of empty property array
  netfilter: Use class properties
  netfilter: Reorder functions
  can_host: Use class properties
  arm/cpu64: Register "aarch64" as class property
  virt: Register "its" as class property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 169 insertions, 116 deletions

diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 509cbf155d..a2eaa43831 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -6,7 +6,6 @@
 #include "qemu/ctype.h"
 #include "qemu/error-report.h"
 #include "qapi/visitor.h"
-#include "qemu/uuid.h"
 #include "qemu/units.h"
 #include "qemu/cutils.h"
 #include "qdev-prop-internal.h"
@@ -38,9 +37,9 @@ void qdev_prop_allow_set_link_before_realize(const Object *obj,
     }
 }
 
-void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
+void *qdev_get_prop_ptr(Object *obj, Property *prop)
 {
-    void *ptr = dev;
+    void *ptr = obj;
     ptr += prop->offset;
     return ptr;
 }
@@ -48,9 +47,8 @@ void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
 void qdev_propinfo_get_enum(Object *obj, Visitor *v, const char *name,
                             void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int *ptr = qdev_get_prop_ptr(dev, prop);
+    int *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_enum(v, prop->name, ptr, prop->info->enum_table, errp);
 }
@@ -60,7 +58,7 @@ void qdev_propinfo_set_enum(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int *ptr = qdev_get_prop_ptr(dev, prop);
+    int *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -92,9 +90,9 @@ static uint32_t qdev_get_prop_mask(Property *prop)
     return 0x1 << prop->bitnr;
 }
 
-static void bit_prop_set(DeviceState *dev, Property *props, bool val)
+static void bit_prop_set(Object *obj, Property *props, bool val)
 {
-    uint32_t *p = qdev_get_prop_ptr(dev, props);
+    uint32_t *p = qdev_get_prop_ptr(obj, props);
     uint32_t mask = qdev_get_prop_mask(props);
     if (val) {
         *p |= mask;
@@ -106,9 +104,8 @@ static void bit_prop_set(DeviceState *dev, Property *props, bool val)
 static void prop_get_bit(Object *obj, Visitor *v, const char *name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *p = qdev_get_prop_ptr(dev, prop);
+    uint32_t *p = qdev_get_prop_ptr(obj, prop);
     bool value = (*p & qdev_get_prop_mask(prop)) != 0;
 
     visit_type_bool(v, name, &value, errp);
@@ -129,7 +126,7 @@ static void prop_set_bit(Object *obj, Visitor *v, const char *name,
     if (!visit_type_bool(v, name, &value, errp)) {
         return;
     }
-    bit_prop_set(dev, prop, value);
+    bit_prop_set(obj, prop, value);
 }
 
 static void set_default_value_bool(ObjectProperty *op, const Property *prop)
@@ -153,9 +150,9 @@ static uint64_t qdev_get_prop_mask64(Property *prop)
     return 0x1ull << prop->bitnr;
 }
 
-static void bit64_prop_set(DeviceState *dev, Property *props, bool val)
+static void bit64_prop_set(Object *obj, Property *props, bool val)
 {
-    uint64_t *p = qdev_get_prop_ptr(dev, props);
+    uint64_t *p = qdev_get_prop_ptr(obj, props);
     uint64_t mask = qdev_get_prop_mask64(props);
     if (val) {
         *p |= mask;
@@ -167,9 +164,8 @@ static void bit64_prop_set(DeviceState *dev, Property *props, bool val)
 static void prop_get_bit64(Object *obj, Visitor *v, const char *name,
                            void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *p = qdev_get_prop_ptr(dev, prop);
+    uint64_t *p = qdev_get_prop_ptr(obj, prop);
     bool value = (*p & qdev_get_prop_mask64(prop)) != 0;
 
     visit_type_bool(v, name, &value, errp);
@@ -190,7 +186,7 @@ static void prop_set_bit64(Object *obj, Visitor *v, const char *name,
     if (!visit_type_bool(v, name, &value, errp)) {
         return;
     }
-    bit64_prop_set(dev, prop, value);
+    bit64_prop_set(obj, prop, value);
 }
 
 const PropertyInfo qdev_prop_bit64 = {
@@ -206,9 +202,8 @@ const PropertyInfo qdev_prop_bit64 = {
 static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    bool *ptr = qdev_get_prop_ptr(dev, prop);
+    bool *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_bool(v, name, ptr, errp);
 }
@@ -218,7 +213,7 @@ static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    bool *ptr = qdev_get_prop_ptr(dev, prop);
+    bool *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -240,9 +235,8 @@ const PropertyInfo qdev_prop_bool = {
 static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
                       Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint8_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint8(v, name, ptr, errp);
 }
@@ -252,7 +246,7 @@ static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint8_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -283,12 +277,11 @@ const PropertyInfo qdev_prop_uint8 = {
 
 /* --- 16bit integer --- */
 
-void qdev_propinfo_get_uint16(Object *obj, Visitor *v, const char *name,
-                              void *opaque, Error **errp)
+static void get_uint16(Object *obj, Visitor *v, const char *name,
+                       void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint16_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint16(v, name, ptr, errp);
 }
@@ -298,7 +291,7 @@ static void set_uint16(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint16_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -310,7 +303,7 @@ static void set_uint16(Object *obj, Visitor *v, const char *name,
 
 const PropertyInfo qdev_prop_uint16 = {
     .name  = "uint16",
-    .get   = qdev_propinfo_get_uint16,
+    .get   = get_uint16,
     .set   = set_uint16,
     .set_default_value = qdev_propinfo_set_default_value_uint,
 };
@@ -320,9 +313,8 @@ const PropertyInfo qdev_prop_uint16 = {
 static void get_uint32(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint32(v, name, ptr, errp);
 }
@@ -332,7 +324,7 @@ static void set_uint32(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -345,9 +337,8 @@ static void set_uint32(Object *obj, Visitor *v, const char *name,
 void qdev_propinfo_get_int32(Object *obj, Visitor *v, const char *name,
                              void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_int32(v, name, ptr, errp);
 }
@@ -357,7 +348,7 @@ static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -386,9 +377,8 @@ const PropertyInfo qdev_prop_int32 = {
 static void get_uint64(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint64(v, name, ptr, errp);
 }
@@ -398,7 +388,7 @@ static void set_uint64(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -411,9 +401,8 @@ static void set_uint64(Object *obj, Visitor *v, const char *name,
 static void get_int64(Object *obj, Visitor *v, const char *name,
                       void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_int64(v, name, ptr, errp);
 }
@@ -423,7 +412,7 @@ static void set_int64(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -452,15 +441,14 @@ const PropertyInfo qdev_prop_int64 = {
 static void release_string(Object *obj, const char *name, void *opaque)
 {
     Property *prop = opaque;
-    g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop));
+    g_free(*(char **)qdev_get_prop_ptr(obj, prop));
 }
 
 static void get_string(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    char **ptr = qdev_get_prop_ptr(dev, prop);
+    char **ptr = qdev_get_prop_ptr(obj, prop);
 
     if (!*ptr) {
         char *str = (char *)"";
@@ -475,7 +463,7 @@ static void set_string(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    char **ptr = qdev_get_prop_ptr(dev, prop);
+    char **ptr = qdev_get_prop_ptr(obj, prop);
     char *str;
 
     if (dev->realized) {
@@ -513,9 +501,8 @@ const PropertyInfo qdev_prop_on_off_auto = {
 void qdev_propinfo_get_size32(Object *obj, Visitor *v, const char *name,
                               void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value = *ptr;
 
     visit_type_size(v, name, &value, errp);
@@ -526,7 +513,7 @@ static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value;
 
     if (dev->realized) {
@@ -542,7 +529,7 @@ static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque,
         error_setg(errp,
                    "Property %s.%s doesn't take value %" PRIu64
                    " (maximum: %u)",
-                   dev->id ? : "", name, value, UINT32_MAX);
+                   object_get_typename(obj), name, value, UINT32_MAX);
         return;
     }
 
@@ -556,63 +543,6 @@ const PropertyInfo qdev_prop_size32 = {
     .set_default_value = qdev_propinfo_set_default_value_uint,
 };
 
-/* --- UUID --- */
-
-static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
-                     Error **errp)
-{
-    DeviceState *dev = DEVICE(obj);
-    Property *prop = opaque;
-    QemuUUID *uuid = qdev_get_prop_ptr(dev, prop);
-    char buffer[UUID_FMT_LEN + 1];
-    char *p = buffer;
-
-    qemu_uuid_unparse(uuid, buffer);
-
-    visit_type_str(v, name, &p, errp);
-}
-
-#define UUID_VALUE_AUTO        "auto"
-
-static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
-                    Error **errp)
-{
-    DeviceState *dev = DEVICE(obj);
-    Property *prop = opaque;
-    QemuUUID *uuid = qdev_get_prop_ptr(dev, prop);
-    char *str;
-
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
-    if (!visit_type_str(v, name, &str, errp)) {
-        return;
-    }
-
-    if (!strcmp(str, UUID_VALUE_AUTO)) {
-        qemu_uuid_generate(uuid);
-    } else if (qemu_uuid_parse(str, uuid) < 0) {
-        error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str);
-    }
-    g_free(str);
-}
-
-static void set_default_uuid_auto(ObjectProperty *op, const Property *prop)
-{
-    object_property_set_default_str(op, UUID_VALUE_AUTO);
-}
-
-const PropertyInfo qdev_prop_uuid = {
-    .name  = "str",
-    .description = "UUID (aka GUID) or \"" UUID_VALUE_AUTO
-        "\" for random value (default)",
-    .get   = get_uuid,
-    .set   = set_uuid,
-    .set_default_value = set_default_uuid_auto,
-};
-
 /* --- support for array properties --- */
 
 /* Used as an opaque for the object properties we add for each
@@ -651,7 +581,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
      */
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *alenptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *alenptr = qdev_get_prop_ptr(obj, prop);
     void **arrayptr = (void *)dev + prop->arrayoffset;
     void *eltptr;
     const char *arrayname;
@@ -697,7 +627,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
          * being inside the device struct.
          */
         arrayprop->prop.offset = eltptr - (void *)dev;
-        assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr);
+        assert(qdev_get_prop_ptr(obj, &arrayprop->prop) == eltptr);
         object_property_add(obj, propname,
                             arrayprop->prop.info->name,
                             arrayprop->prop.info->get,
@@ -748,22 +678,22 @@ static Property *qdev_prop_find(DeviceState *dev, const char *name)
     return NULL;
 }
 
-void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
+void error_set_from_qdev_prop_error(Error **errp, int ret, Object *obj,
                                     Property *prop, const char *value)
 {
     switch (ret) {
     case -EEXIST:
         error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use",
-                  object_get_typename(OBJECT(dev)), prop->name, value);
+                  object_get_typename(obj), prop->name, value);
         break;
     default:
     case -EINVAL:
         error_setg(errp, QERR_PROPERTY_VALUE_BAD,
-                   object_get_typename(OBJECT(dev)), prop->name, value);
+                   object_get_typename(obj), prop->name, value);
         break;
     case -ENOENT:
         error_setg(errp, "Property '%s.%s' can't find value '%s'",
-                  object_get_typename(OBJECT(dev)), prop->name, value);
+                  object_get_typename(obj), prop->name, value);
         break;
     case 0:
         break;
@@ -831,7 +761,7 @@ void qdev_prop_register_global(GlobalProperty *prop)
     g_ptr_array_add(global_props(), prop);
 }
 
-const GlobalProperty *qdev_find_global_prop(DeviceState *dev,
+const GlobalProperty *qdev_find_global_prop(Object *obj,
                                             const char *name)
 {
     GPtrArray *props = global_props();
@@ -840,7 +770,7 @@ const GlobalProperty *qdev_find_global_prop(DeviceState *dev,
 
     for (i = 0; i < props->len; i++) {
         p = g_ptr_array_index(props, i);
-        if (object_dynamic_cast(OBJECT(dev), p->driver)
+        if (object_dynamic_cast(obj, p->driver)
             && !strcmp(p->property, name)) {
             return p;
         }
@@ -891,9 +821,8 @@ void qdev_prop_set_globals(DeviceState *dev)
 static void get_size(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_size(v, name, ptr, errp);
 }
@@ -903,7 +832,12 @@ static void set_size(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
+
+    if (dev->realized) {
+        qdev_prop_set_after_realize(dev, name, errp);
+        return;
+    }
 
     visit_type_size(v, name, ptr, errp);
 }
@@ -929,3 +863,122 @@ const PropertyInfo qdev_prop_link = {
     .name = "link",
     .create = create_link_property,
 };
+
+void qdev_property_add_static(DeviceState *dev, Property *prop)
+{
+    Object *obj = OBJECT(dev);
+    ObjectProperty *op;
+
+    assert(!prop->info->create);
+
+    op = object_property_add(obj, prop->name, prop->info->name,
+                             prop->info->get, prop->info->set,
+                             prop->info->release,
+                             prop);
+
+    object_property_set_description(obj, prop->name,
+                                    prop->info->description);
+
+    if (prop->set_default) {
+        prop->info->set_default_value(op, prop);
+        if (op->init) {
+            op->init(obj, op);
+        }
+    }
+}
+
+static void qdev_class_add_property(DeviceClass *klass, Property *prop)
+{
+    ObjectClass *oc = OBJECT_CLASS(klass);
+
+    if (prop->info->create) {
+        prop->info->create(oc, prop);
+    } else {
+        ObjectProperty *op;
+
+        op = object_class_property_add(oc,
+                                       prop->name, prop->info->name,
+                                       prop->info->get, prop->info->set,
+                                       prop->info->release,
+                                       prop);
+        if (prop->set_default) {
+            prop->info->set_default_value(op, prop);
+        }
+    }
+    object_class_property_set_description(oc, prop->name,
+                                          prop->info->description);
+}
+
+/**
+ * Legacy property handling
+ */
+
+static void qdev_get_legacy_property(Object *obj, Visitor *v,
+                                     const char *name, void *opaque,
+                                     Error **errp)
+{
+    Property *prop = opaque;
+
+    char buffer[1024];
+    char *ptr = buffer;
+
+    prop->info->print(obj, prop, buffer, sizeof(buffer));
+    visit_type_str(v, name, &ptr, errp);
+}
+
+/**
+ * qdev_class_add_legacy_property:
+ * @dev: Device to add the property to.
+ * @prop: The qdev property definition.
+ *
+ * Add a legacy QOM property to @dev for qdev property @prop.
+ *
+ * Legacy properties are string versions of QOM properties.  The format of
+ * the string depends on the property type.  Legacy properties are only
+ * needed for "info qtree".
+ *
+ * Do not use this in new code!  QOM Properties added through this interface
+ * will be given names in the "legacy" namespace.
+ */
+static void qdev_class_add_legacy_property(DeviceClass *dc, Property *prop)
+{
+    g_autofree char *name = NULL;
+
+    /* Register pointer properties as legacy properties */
+    if (!prop->info->print && prop->info->get) {
+        return;
+    }
+
+    name = g_strdup_printf("legacy-%s", prop->name);
+    object_class_property_add(OBJECT_CLASS(dc), name, "str",
+        prop->info->print ? qdev_get_legacy_property : prop->info->get,
+        NULL, NULL, prop);
+}
+
+void device_class_set_props(DeviceClass *dc, Property *props)
+{
+    Property *prop;
+
+    dc->props_ = props;
+    for (prop = props; prop && prop->name; prop++) {
+        qdev_class_add_legacy_property(dc, prop);
+        qdev_class_add_property(dc, prop);
+    }
+}
+
+void qdev_alias_all_properties(DeviceState *target, Object *source)
+{
+    ObjectClass *class;
+    Property *prop;
+
+    class = object_get_class(OBJECT(target));
+    do {
+        DeviceClass *dc = DEVICE_CLASS(class);
+
+        for (prop = dc->props_; prop && prop->name; prop++) {
+            object_property_add_alias(source, prop->name,
+                                      OBJECT(target), prop->name);
+        }
+        class = object_class_get_parent(class);
+    } while (class != object_class_by_name(TYPE_DEVICE));
+}