Merge remote-tracking branch 'afaerber-or/qom-next-1' into staging

* afaerber-or/qom-next-1:
  target-i386: Use uint32 visitor for [x]level properties
  qdev: Remove PropertyInfo range checking
  qdev: Switch property accessors to fixed-width visitor interfaces
  qdev: Use int32_t container for devfn property
  qapi: Add String visitor coverage to serialization unit tests
  qapi: String visitor, use %f representation for floats
  qapi: Unit tests for visitor-based serialization
  qapi: Add Visitor interfaces for uint*_t and int*_t

hw/mc146818rtc.c

@@ -599,13 +599,6 @@ static const MemoryRegionOps cmos_ops = {
     .old_portio = cmos_portio
 };
 
-// FIXME add int32 visitor
-static void visit_type_int32(Visitor *v, int *value, const char *name, Error **errp)
-{
-    int64_t val = *value;
-    visit_type_int(v, &val, name, errp);
-}
-
 static void rtc_get_date(Object *obj, Visitor *v, void *opaque,
                          const char *name, Error **errp)
 {

hw/pci.c

@@ -1537,7 +1537,7 @@ PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
     DeviceState *dev;
 
     dev = qdev_create(&bus->qbus, name);
-    qdev_prop_set_uint32(dev, "addr", devfn);
+    qdev_prop_set_int32(dev, "addr", devfn);
     qdev_prop_set_bit(dev, "multifunction", multifunction);
     return PCI_DEVICE(dev);
 }

hw/pci.h

@@ -197,7 +197,7 @@ struct PCIDevice {
 
     /* the following fields are read only */
     PCIBus *bus;
-    uint32_t devfn;
+    int32_t devfn;
     char name[64];
     PCIIORegion io_regions[PCI_NUM_REGIONS];
 

hw/qdev-addr.c

@@ -27,7 +27,7 @@ static void get_taddr(Object *obj, Visitor *v, void *opaque,
     int64_t value;
 
     value = *ptr;
-    visit_type_int(v, &value, name, errp);
+    visit_type_int64(v, &value, name, errp);
 }
 
 static void set_taddr(Object *obj, Visitor *v, void *opaque,
@@ -44,7 +44,7 @@ static void set_taddr(Object *obj, Visitor *v, void *opaque,
         return;
     }
 
-    visit_type_int(v, &value, name, &local_err);
+    visit_type_int64(v, &value, name, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;

hw/qdev-properties.c

@@ -76,52 +76,35 @@ PropertyInfo qdev_prop_bit = {
 
 /* --- 8bit integer --- */
 
-static void get_int8(Object *obj, Visitor *v, void *opaque,
-                     const char *name, Error **errp)
+static void get_uint8(Object *obj, Visitor *v, void *opaque,
+                      const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int8_t *ptr = qdev_get_prop_ptr(dev, prop);
-    int64_t value;
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    value = *ptr;
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint8(v, ptr, name, errp);
 }
 
-static void set_int8(Object *obj, Visitor *v, void *opaque,
-                     const char *name, Error **errp)
+static void set_uint8(Object *obj, Visitor *v, void *opaque,
+                      const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int8_t *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
-    int64_t value;
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_uint8(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint8 = {
     .name  = "uint8",
-    .get   = get_int8,
-    .set   = set_int8,
-    .min   = 0,
-    .max   = 255,
+    .get   = get_uint8,
+    .set   = set_uint8,
 };
 
 /* --- 8bit hex value --- */
@@ -154,74 +137,78 @@ PropertyInfo qdev_prop_hex8 = {
     .legacy_name  = "hex8",
     .parse = parse_hex8,
     .print = print_hex8,
-    .get   = get_int8,
-    .set   = set_int8,
-    .min   = 0,
-    .max   = 255,
+    .get   = get_uint8,
+    .set   = set_uint8,
 };
 
 /* --- 16bit integer --- */
 
-static void get_int16(Object *obj, Visitor *v, void *opaque,
-                      const char *name, Error **errp)
+static void get_uint16(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int16_t *ptr = qdev_get_prop_ptr(dev, prop);
-    int64_t value;
+    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    value = *ptr;
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint16(v, ptr, name, errp);
 }
 
-static void set_int16(Object *obj, Visitor *v, void *opaque,
-                      const char *name, Error **errp)
+static void set_uint16(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int16_t *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
-    int64_t value;
+    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_uint16(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint16 = {
     .name  = "uint16",
-    .get   = get_int16,
-    .set   = set_int16,
-    .min   = 0,
-    .max   = 65535,
+    .get   = get_uint16,
+    .set   = set_uint16,
 };
 
 /* --- 32bit integer --- */
 
+static void get_uint32(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
+{
+    DeviceState *dev = DEVICE(obj);
+    Property *prop = opaque;
+    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+    visit_type_uint32(v, ptr, name, errp);
+}
+
+static void set_uint32(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
+{
+    DeviceState *dev = DEVICE(obj);
+    Property *prop = opaque;
+    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+    if (dev->state != DEV_STATE_CREATED) {
+        error_set(errp, QERR_PERMISSION_DENIED);
+        return;
+    }
+
+    visit_type_uint32(v, ptr, name, errp);
+}
+
 static void get_int32(Object *obj, Visitor *v, void *opaque,
                       const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
-    int64_t value;
 
-    value = *ptr;
-    visit_type_int(v, &value, name, errp);
+    visit_type_int32(v, ptr, name, errp);
 }
 
 static void set_int32(Object *obj, Visitor *v, void *opaque,
@@ -230,42 +217,25 @@ static void set_int32(Object *obj, Visitor *v, void *opaque,
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
-    int64_t value;
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_int32(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint32 = {
     .name  = "uint32",
-    .get   = get_int32,
-    .set   = set_int32,
-    .min   = 0,
-    .max   = 0xFFFFFFFFULL,
+    .get   = get_uint32,
+    .set   = set_uint32,
 };
 
 PropertyInfo qdev_prop_int32 = {
     .name  = "int32",
     .get   = get_int32,
     .set   = set_int32,
-    .min   = -0x80000000LL,
-    .max   = 0x7FFFFFFFLL,
 };
 
 /* --- 32bit hex value --- */
@@ -298,43 +268,41 @@ PropertyInfo qdev_prop_hex32 = {
     .legacy_name  = "hex32",
     .parse = parse_hex32,
     .print = print_hex32,
-    .get   = get_int32,
-    .set   = set_int32,
-    .min   = 0,
-    .max   = 0xFFFFFFFFULL,
+    .get   = get_uint32,
+    .set   = set_uint32,
 };
 
 /* --- 64bit integer --- */
 
-static void get_int64(Object *obj, Visitor *v, void *opaque,
-                      const char *name, Error **errp)
+static void get_uint64(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    visit_type_int(v, ptr, name, errp);
+    visit_type_uint64(v, ptr, name, errp);
 }
 
-static void set_int64(Object *obj, Visitor *v, void *opaque,
-                      const char *name, Error **errp)
+static void set_uint64(Object *obj, Visitor *v, void *opaque,
+                       const char *name, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int(v, ptr, name, errp);
+    visit_type_uint64(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint64 = {
     .name  = "uint64",
-    .get   = get_int64,
-    .set   = set_int64,
+    .get   = get_uint64,
+    .set   = set_uint64,
 };
 
 /* --- 64bit hex value --- */
@@ -367,8 +335,8 @@ PropertyInfo qdev_prop_hex64 = {
     .legacy_name  = "hex64",
     .parse = parse_hex64,
     .print = print_hex64,
-    .get   = get_int64,
-    .set   = set_int64,
+    .get   = get_uint64,
+    .set   = set_uint64,
 };
 
 /* --- string --- */
@@ -645,7 +613,7 @@ static void get_vlan(Object *obj, Visitor *v, void *opaque,
     int64_t id;
 
     id = *ptr ? (*ptr)->id : -1;
-    visit_type_int(v, &id, name, errp);
+    visit_type_int64(v, &id, name, errp);
 }
 
 static void set_vlan(Object *obj, Visitor *v, void *opaque,
@@ -663,7 +631,7 @@ static void set_vlan(Object *obj, Visitor *v, void *opaque,
         return;
     }
 
-    visit_type_int(v, &id, name, &local_err);
+    visit_type_int64(v, &id, name, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
@@ -824,7 +792,7 @@ static void set_pci_devfn(Object *obj, Visitor *v, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
     unsigned int slot, fn, n;
     Error *local_err = NULL;
     char *str;
@@ -837,7 +805,17 @@ static void set_pci_devfn(Object *obj, Visitor *v, void *opaque,
     visit_type_str(v, &str, name, &local_err);
     if (local_err) {
         error_free(local_err);
-        return set_int32(obj, v, opaque, name, errp);
+        local_err = NULL;
+        visit_type_int32(v, &value, name, &local_err);
+        if (local_err) {
+            error_propagate(errp, local_err);
+        } else if (value < -1 || value > 255) {
+            error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                      "pci_devfn");
+        } else {
+            *ptr = value;
+        }
+        return;
     }
 
     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
@@ -860,7 +838,7 @@ invalid:
 
 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 {
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (*ptr == -1) {
         return snprintf(dest, len, "<unset>");
@@ -875,11 +853,6 @@ PropertyInfo qdev_prop_pci_devfn = {
     .print = print_pci_devfn,
     .get   = get_int32,
     .set   = set_pci_devfn,
-    /* FIXME: this should be -1...255, but the address is stored
-     * into an uint32_t rather than int32_t.
-     */
-    .min   = 0,
-    .max   = 0xFFFFFFFFULL,
 };
 
 /* --- blocksize --- */
@@ -889,31 +862,31 @@ static void set_blocksize(Object *obj, Visitor *v, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int16_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop);
     Error *local_err = NULL;
-    int64_t value;
+    const int64_t min = 512;
+    const int64_t max = 32768;
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int(v, &value, name, &local_err);
+    visit_type_uint16(v, &value, name, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
     }
-    if (value < prop->info->min || value > prop->info->max) {
+    if (value < min || value > max) {
         error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, value, prop->info->min,
-                  prop->info->max);
+                  dev->id?:"", name, (int64_t)value, min, max);
         return;
     }
 
     /* We rely on power-of-2 blocksizes for bitmasks */
     if ((value & (value - 1)) != 0) {
         error_set(errp, QERR_PROPERTY_VALUE_NOT_POWER_OF_2,
-                  dev->id?:"", name, value);
+                  dev->id?:"", name, (int64_t)value);
         return;
     }
 
@@ -922,10 +895,8 @@ static void set_blocksize(Object *obj, Visitor *v, void *opaque,
 
 PropertyInfo qdev_prop_blocksize = {
     .name  = "blocksize",
-    .get   = get_int16,
+    .get   = get_uint16,
     .set   = set_blocksize,
-    .min   = 512,
-    .max   = 65024,
 };
 
 /* --- public helpers --- */

hw/qdev.h

@@ -122,8 +122,6 @@ struct PropertyInfo {
     const char *name;
     const char *legacy_name;
     const char **enum_table;
-    int64_t min;
-    int64_t max;
     int (*parse)(DeviceState *dev, Property *prop, const char *str);
     int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
     ObjectPropertyAccessor *get;
@@ -267,7 +265,7 @@ extern PropertyInfo qdev_prop_blocksize;
 #define DEFINE_PROP_HEX64(_n, _s, _f, _d)                       \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t)
 #define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d)                   \
-    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t)
+    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
 
 #define DEFINE_PROP_PTR(_n, _s, _f)             \
     DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)

qapi/qapi-visit-core.c

@@ -97,6 +97,145 @@ void visit_type_int(Visitor *v, int64_t *obj, const char *name, Error **errp)
     }
 }
 
+void visit_type_uint8(Visitor *v, uint8_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_uint8) {
+            v->type_uint8(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < 0 || value > UINT8_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "uint8_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_uint16) {
+            v->type_uint16(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < 0 || value > UINT16_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "uint16_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_uint32) {
+            v->type_uint32(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < 0 || value > UINT32_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "uint32_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_uint64) {
+            v->type_uint64(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_int8) {
+            v->type_int8(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < INT8_MIN || value > INT8_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "int8_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_int16) {
+            v->type_int16(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < INT16_MIN || value > INT16_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "int16_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp)
+{
+    int64_t value;
+    if (!error_is_set(errp)) {
+        if (v->type_int32) {
+            v->type_int32(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            if (value < INT32_MIN || value > INT32_MAX) {
+                error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                          "int32_t");
+                return;
+            }
+            *obj = value;
+        }
+    }
+}
+
+void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp)
+{
+    if (!error_is_set(errp)) {
+        if (v->type_int64) {
+            v->type_int64(v, obj, name, errp);
+        } else {
+            v->type_int(v, obj, name, errp);
+        }
+    }
+}
+
 void visit_type_bool(Visitor *v, bool *obj, const char *name, Error **errp)
 {
     if (!error_is_set(errp)) {

qapi/qapi-visit-core.h

@@ -52,6 +52,14 @@ struct Visitor
     void (*start_handle)(Visitor *v, void **obj, const char *kind,
                          const char *name, Error **errp);
     void (*end_handle)(Visitor *v, Error **errp);
+    void (*type_uint8)(Visitor *v, uint8_t *obj, const char *name, Error **errp);
+    void (*type_uint16)(Visitor *v, uint16_t *obj, const char *name, Error **errp);
+    void (*type_uint32)(Visitor *v, uint32_t *obj, const char *name, Error **errp);
+    void (*type_uint64)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
+    void (*type_int8)(Visitor *v, int8_t *obj, const char *name, Error **errp);
+    void (*type_int16)(Visitor *v, int16_t *obj, const char *name, Error **errp);
+    void (*type_int32)(Visitor *v, int32_t *obj, const char *name, Error **errp);
+    void (*type_int64)(Visitor *v, int64_t *obj, const char *name, Error **errp);
 };
 
 void visit_start_handle(Visitor *v, void **obj, const char *kind,
@@ -69,6 +77,14 @@ void visit_end_optional(Visitor *v, Error **errp);
 void visit_type_enum(Visitor *v, int *obj, const char *strings[],
                      const char *kind, const char *name, Error **errp);
 void visit_type_int(Visitor *v, int64_t *obj, const char *name, Error **errp);
+void visit_type_uint8(Visitor *v, uint8_t *obj, const char *name, Error **errp);
+void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name, Error **errp);
+void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name, Error **errp);
+void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name, Error **errp);
+void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp);
+void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp);
+void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp);
+void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp);
 void visit_type_bool(Visitor *v, bool *obj, const char *name, Error **errp);
 void visit_type_str(Visitor *v, char **obj, const char *name, Error **errp);
 void visit_type_number(Visitor *v, double *obj, const char *name, Error **errp);

qapi/string-output-visitor.c

@@ -52,7 +52,7 @@ static void print_type_number(Visitor *v, double *obj, const char *name,
                               Error **errp)
 {
     StringOutputVisitor *sov = DO_UPCAST(StringOutputVisitor, visitor, v);
-    string_output_set(sov, g_strdup_printf("%g", *obj));
+    string_output_set(sov, g_strdup_printf("%f", *obj));
 }
 
 char *string_output_get_string(StringOutputVisitor *sov)

target-i386/cpu.c

@@ -723,66 +723,32 @@ static void x86_cpuid_get_level(Object *obj, Visitor *v, void *opaque,
                                 const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    int64_t value;
 
-    value = cpu->env.cpuid_level;
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
 }
 
 static void x86_cpuid_set_level(Object *obj, Visitor *v, void *opaque,
                                 const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    const int64_t min = 0;
-    const int64_t max = UINT32_MAX;
-    int64_t value;
-
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
-    if (error_is_set(errp)) {
-        return;
-    }
-    if (value < min || value > max) {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
-                  name ? name : "null", value, min, max);
-        return;
-    }
 
-    cpu->env.cpuid_level = value;
+    visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
 }
 
 static void x86_cpuid_get_xlevel(Object *obj, Visitor *v, void *opaque,
                                  const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    int64_t value;
 
-    value = cpu->env.cpuid_xlevel;
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
+    visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
 }
 
 static void x86_cpuid_set_xlevel(Object *obj, Visitor *v, void *opaque,
                                  const char *name, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
-    const int64_t min = 0;
-    const int64_t max = UINT32_MAX;
-    int64_t value;
-
-    /* TODO Use visit_type_uint32() once available */
-    visit_type_int(v, &value, name, errp);
-    if (error_is_set(errp)) {
-        return;
-    }
-    if (value < min || value > max) {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
-                  name ? name : "null", value, min, max);
-        return;
-    }
 
-    cpu->env.cpuid_xlevel = value;
+    visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
 }
 
 static char *x86_cpuid_get_vendor(Object *obj, Error **errp)

tests/Makefile

@@ -13,6 +13,7 @@ check-unit-y += tests/test-qmp-commands$(EXESUF)
 check-unit-y += tests/test-string-input-visitor$(EXESUF)
 check-unit-y += tests/test-string-output-visitor$(EXESUF)
 check-unit-y += tests/test-coroutine$(EXESUF)
+check-unit-y += tests/test-visitor-serialization$(EXESUF)
 
 check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
 
@@ -31,7 +32,7 @@ test-obj-y = tests/check-qint.o tests/check-qstring.o tests/check-qdict.o \
 	tests/test-coroutine.o tests/test-string-output-visitor.o \
 	tests/test-string-input-visitor.o tests/test-qmp-output-visitor.o \
 	tests/test-qmp-input-visitor.o tests/test-qmp-input-strict.o \
-	tests/test-qmp-commands.o
+	tests/test-qmp-commands.o tests/test-visitor-serialization.o
 
 test-qapi-obj-y =  $(qobject-obj-y) $(qapi-obj-y) $(tools-obj-y)
 test-qapi-obj-y += tests/test-qapi-visit.o tests/test-qapi-types.o
@@ -64,6 +65,7 @@ tests/test-qmp-output-visitor$(EXESUF): tests/test-qmp-output-visitor.o $(test-q
 tests/test-qmp-input-visitor$(EXESUF): tests/test-qmp-input-visitor.o $(test-qapi-obj-y)
 tests/test-qmp-input-strict$(EXESUF): tests/test-qmp-input-strict.o $(test-qapi-obj-y)
 tests/test-qmp-commands$(EXESUF): tests/test-qmp-commands.o tests/test-qmp-marshal.o $(test-qapi-obj-y)
+tests/test-visitor-serialization$(EXESUF): tests/test-visitor-serialization.o $(test-qapi-obj-y)
 
 tests/rtc-test$(EXESUF): tests/rtc-test.o $(trace-obj-y)
 tests/m48t59-test$(EXESUF): tests/m48t59-test.o $(trace-obj-y)

tests/test-string-output-visitor.c

@@ -84,7 +84,7 @@ static void test_visitor_out_number(TestOutputVisitorData *data,
 
     str = string_output_get_string(data->sov);
     g_assert(str != NULL);
-    g_assert_cmpstr(str, ==, "3.14");
+    g_assert_cmpstr(str, ==, "3.140000");
     g_free(str);
 }