--- /dev/null
+#include "net/net.h"
+#include "hw/qdev.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/error-report.h"
+#include "sysemu/block-backend.h"
+#include "hw/block/block.h"
+#include "net/hub.h"
+#include "qapi/visitor.h"
+#include "sysemu/char.h"
+
+void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
+ Error **errp)
+{
+ if (dev->id) {
+ error_setg(errp, "Attempt to set property '%s' on device '%s' "
+ "(type '%s') after it was realized", name, dev->id,
+ object_get_typename(OBJECT(dev)));
+ } else {
+ error_setg(errp, "Attempt to set property '%s' on anonymous device "
+ "(type '%s') after it was realized", name,
+ object_get_typename(OBJECT(dev)));
+ }
+}
+
+void qdev_prop_allow_set_link_before_realize(Object *obj, const char *name,
+ Object *val, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+
+ if (dev->realized) {
+ error_setg(errp, "Attempt to set link property '%s' on device '%s' "
+ "(type '%s') after it was realized",
+ name, dev->id, object_get_typename(obj));
+ }
+}
+
+void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
+{
+ void *ptr = dev;
+ ptr += prop->offset;
+ return ptr;
+}
+
+static void get_enum(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ int *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_enum(v, ptr, prop->info->enum_table,
+ prop->info->name, prop->name, errp);
+}
+
+static void set_enum(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ int *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_enum(v, ptr, prop->info->enum_table,
+ prop->info->name, prop->name, errp);
+}
+
+/* Bit */
+
+static uint32_t qdev_get_prop_mask(Property *prop)
+{
+ assert(prop->info == &qdev_prop_bit);
+ return 0x1 << prop->bitnr;
+}
+
+static void bit_prop_set(DeviceState *dev, Property *props, bool val)
+{
+ uint32_t *p = qdev_get_prop_ptr(dev, props);
+ uint32_t mask = qdev_get_prop_mask(props);
+ if (val) {
+ *p |= mask;
+ } else {
+ *p &= ~mask;
+ }
+}
+
+static void prop_get_bit(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint32_t *p = qdev_get_prop_ptr(dev, prop);
+ bool value = (*p & qdev_get_prop_mask(prop)) != 0;
+
+ visit_type_bool(v, &value, name, errp);
+}
+
+static void prop_set_bit(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ Error *local_err = NULL;
+ bool value;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_bool(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ bit_prop_set(dev, prop, value);
+}
+
+PropertyInfo qdev_prop_bit = {
+ .name = "bool",
+ .description = "on/off",
+ .get = prop_get_bit,
+ .set = prop_set_bit,
+};
+
+/* Bit64 */
+
+static uint64_t qdev_get_prop_mask64(Property *prop)
+{
+ assert(prop->info == &qdev_prop_bit64);
+ return 0x1ull << prop->bitnr;
+}
+
+static void bit64_prop_set(DeviceState *dev, Property *props, bool val)
+{
+ uint64_t *p = qdev_get_prop_ptr(dev, props);
+ uint64_t mask = qdev_get_prop_mask64(props);
+ if (val) {
+ *p |= mask;
+ } else {
+ *p &= ~mask;
+ }
+}
+
+static void prop_get_bit64(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint64_t *p = qdev_get_prop_ptr(dev, prop);
+ bool value = (*p & qdev_get_prop_mask64(prop)) != 0;
+
+ visit_type_bool(v, &value, name, errp);
+}
+
+static void prop_set_bit64(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ Error *local_err = NULL;
+ bool value;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_bool(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ bit64_prop_set(dev, prop, value);
+}
+
+PropertyInfo qdev_prop_bit64 = {
+ .name = "bool",
+ .description = "on/off",
+ .get = prop_get_bit64,
+ .set = prop_set_bit64,
+};
+
+/* --- bool --- */
+
+static void get_bool(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ bool *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_bool(v, ptr, name, errp);
+}
+
+static void set_bool(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ bool *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_bool(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_bool = {
+ .name = "bool",
+ .get = get_bool,
+ .set = set_bool,
+};
+
+/* --- 8bit integer --- */
+
+static void get_uint8(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_uint8(v, ptr, name, errp);
+}
+
+static void set_uint8(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_uint8(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_uint8 = {
+ .name = "uint8",
+ .get = get_uint8,
+ .set = set_uint8,
+};
+
+/* --- 16bit integer --- */
+
+static void get_uint16(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_uint16(v, ptr, name, errp);
+}
+
+static void set_uint16(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_uint16(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_uint16 = {
+ .name = "uint16",
+ .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->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ 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);
+
+ visit_type_int32(v, ptr, name, errp);
+}
+
+static void set_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);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_int32(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_uint32 = {
+ .name = "uint32",
+ .get = get_uint32,
+ .set = set_uint32,
+};
+
+PropertyInfo qdev_prop_int32 = {
+ .name = "int32",
+ .get = get_int32,
+ .set = set_int32,
+};
+
+/* --- 64bit integer --- */
+
+static void get_uint64(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_uint64(v, ptr, name, errp);
+}
+
+static void set_uint64(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_uint64(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_uint64 = {
+ .name = "uint64",
+ .get = get_uint64,
+ .set = set_uint64,
+};
+
+/* --- string --- */
+
+static void release_string(Object *obj, const char *name, void *opaque)
+{
+ Property *prop = opaque;
+ g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop));
+}
+
+static void get_string(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ char **ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (!*ptr) {
+ char *str = (char *)"";
+ visit_type_str(v, &str, name, errp);
+ } else {
+ visit_type_str(v, ptr, name, errp);
+ }
+}
+
+static void set_string(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ char **ptr = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+ char *str;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_str(v, &str, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ if (*ptr) {
+ g_free(*ptr);
+ }
+ *ptr = str;
+}
+
+PropertyInfo qdev_prop_string = {
+ .name = "str",
+ .release = release_string,
+ .get = get_string,
+ .set = set_string,
+};
+
+/* --- pointer --- */
+
+/* Not a proper property, just for dirty hacks. TODO Remove it! */
+PropertyInfo qdev_prop_ptr = {
+ .name = "ptr",
+};
+
+/* --- mac address --- */
+
+/*
+ * accepted syntax versions:
+ * 01:02:03:04:05:06
+ * 01-02-03-04-05-06
+ */
+static void get_mac(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ MACAddr *mac = qdev_get_prop_ptr(dev, prop);
+ char buffer[2 * 6 + 5 + 1];
+ char *p = buffer;
+
+ snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x",
+ mac->a[0], mac->a[1], mac->a[2],
+ mac->a[3], mac->a[4], mac->a[5]);
+
+ visit_type_str(v, &p, name, errp);
+}
+
+static void set_mac(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ MACAddr *mac = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+ int i, pos;
+ char *str, *p;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_str(v, &str, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ for (i = 0, pos = 0; i < 6; i++, pos += 3) {
+ if (!qemu_isxdigit(str[pos])) {
+ goto inval;
+ }
+ if (!qemu_isxdigit(str[pos+1])) {
+ goto inval;
+ }
+ if (i == 5) {
+ if (str[pos+2] != '\0') {
+ goto inval;
+ }
+ } else {
+ if (str[pos+2] != ':' && str[pos+2] != '-') {
+ goto inval;
+ }
+ }
+ mac->a[i] = strtol(str+pos, &p, 16);
+ }
+ g_free(str);
+ return;
+
+inval:
+ error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str);
+ g_free(str);
+}
+
+PropertyInfo qdev_prop_macaddr = {
+ .name = "str",
+ .description = "Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56",
+ .get = get_mac,
+ .set = set_mac,
+};
+
+/* --- lost tick policy --- */
+
+QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int));
+
+PropertyInfo qdev_prop_losttickpolicy = {
+ .name = "LostTickPolicy",
+ .enum_table = LostTickPolicy_lookup,
+ .get = get_enum,
+ .set = set_enum,
+};
+
+/* --- BIOS CHS translation */
+
+QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int));
+
+PropertyInfo qdev_prop_bios_chs_trans = {
+ .name = "BiosAtaTranslation",
+ .description = "Logical CHS translation algorithm, "
+ "auto/none/lba/large/rechs",
+ .enum_table = BiosAtaTranslation_lookup,
+ .get = get_enum,
+ .set = set_enum,
+};
+
+/* --- pci address --- */
+
+/*
+ * bus-local address, i.e. "$slot" or "$slot.$fn"
+ */
+static void set_pci_devfn(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ int32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+ unsigned int slot, fn, n;
+ Error *local_err = NULL;
+ char *str;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_str(v, &str, name, &local_err);
+ if (local_err) {
+ error_free(local_err);
+ 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_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+ name ? name : "null", "pci_devfn");
+ } else {
+ *ptr = value;
+ }
+ return;
+ }
+
+ if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
+ fn = 0;
+ if (sscanf(str, "%x%n", &slot, &n) != 1) {
+ goto invalid;
+ }
+ }
+ if (str[n] != '\0' || fn > 7 || slot > 31) {
+ goto invalid;
+ }
+ *ptr = slot << 3 | fn;
+ g_free(str);
+ return;
+
+invalid:
+ error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str);
+ g_free(str);
+}
+
+static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest,
+ size_t len)
+{
+ int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (*ptr == -1) {
+ return snprintf(dest, len, "<unset>");
+ } else {
+ return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
+ }
+}
+
+PropertyInfo qdev_prop_pci_devfn = {
+ .name = "int32",
+ .description = "Slot and optional function number, example: 06.0 or 06",
+ .print = print_pci_devfn,
+ .get = get_int32,
+ .set = set_pci_devfn,
+};
+
+/* --- blocksize --- */
+
+static void set_blocksize(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+ const int64_t min = 512;
+ const int64_t max = 32768;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_uint16(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ /* value of 0 means "unset" */
+ if (value && (value < min || value > max)) {
+ error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
+ dev->id ? : "", name, (int64_t)value, min, max);
+ return;
+ }
+
+ /* We rely on power-of-2 blocksizes for bitmasks */
+ if ((value & (value - 1)) != 0) {
+ error_setg(errp,
+ "Property %s.%s doesn't take value '%" PRId64 "', it's not a power of 2",
+ dev->id ?: "", name, (int64_t)value);
+ return;
+ }
+
+ *ptr = value;
+}
+
+PropertyInfo qdev_prop_blocksize = {
+ .name = "uint16",
+ .description = "A power of two between 512 and 32768",
+ .get = get_uint16,
+ .set = set_blocksize,
+};
+
+/* --- pci host address --- */
+
+static void get_pci_host_devaddr(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop);
+ char buffer[] = "xxxx:xx:xx.x";
+ char *p = buffer;
+ int rc = 0;
+
+ rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%d",
+ addr->domain, addr->bus, addr->slot, addr->function);
+ assert(rc == sizeof(buffer) - 1);
+
+ visit_type_str(v, &p, name, errp);
+}
+
+/*
+ * Parse [<domain>:]<bus>:<slot>.<func>
+ * if <domain> is not supplied, it's assumed to be 0.
+ */
+static void set_pci_host_devaddr(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+ char *str, *p;
+ char *e;
+ unsigned long val;
+ unsigned long dom = 0, bus = 0;
+ unsigned int slot = 0, func = 0;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_str(v, &str, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ p = str;
+ val = strtoul(p, &e, 16);
+ if (e == p || *e != ':') {
+ goto inval;
+ }
+ bus = val;
+
+ p = e + 1;
+ val = strtoul(p, &e, 16);
+ if (e == p) {
+ goto inval;
+ }
+ if (*e == ':') {
+ dom = bus;
+ bus = val;
+ p = e + 1;
+ val = strtoul(p, &e, 16);
+ if (e == p) {
+ goto inval;
+ }
+ }
+ slot = val;
+
+ if (*e != '.') {
+ goto inval;
+ }
+ p = e + 1;
+ val = strtoul(p, &e, 10);
+ if (e == p) {
+ goto inval;
+ }
+ func = val;
+
+ if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) {
+ goto inval;
+ }
+
+ if (*e) {
+ goto inval;
+ }
+
+ addr->domain = dom;
+ addr->bus = bus;
+ addr->slot = slot;
+ addr->function = func;
+
+ g_free(str);
+ return;
+
+inval:
+ error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str);
+ g_free(str);
+}
+
+PropertyInfo qdev_prop_pci_host_devaddr = {
+ .name = "str",
+ .description = "Address (bus/device/function) of "
+ "the host device, example: 04:10.0",
+ .get = get_pci_host_devaddr,
+ .set = set_pci_host_devaddr,
+};
+
+/* --- support for array properties --- */
+
+/* Used as an opaque for the object properties we add for each
+ * array element. Note that the struct Property must be first
+ * in the struct so that a pointer to this works as the opaque
+ * for the underlying element's property hooks as well as for
+ * our own release callback.
+ */
+typedef struct {
+ struct Property prop;
+ char *propname;
+ ObjectPropertyRelease *release;
+} ArrayElementProperty;
+
+/* object property release callback for array element properties:
+ * we call the underlying element's property release hook, and
+ * then free the memory we allocated when we added the property.
+ */
+static void array_element_release(Object *obj, const char *name, void *opaque)
+{
+ ArrayElementProperty *p = opaque;
+ if (p->release) {
+ p->release(obj, name, opaque);
+ }
+ g_free(p->propname);
+ g_free(p);
+}
+
+static void set_prop_arraylen(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ /* Setter for the property which defines the length of a
+ * variable-sized property array. As well as actually setting the
+ * array-length field in the device struct, we have to create the
+ * array itself and dynamically add the corresponding properties.
+ */
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint32_t *alenptr = qdev_get_prop_ptr(dev, prop);
+ void **arrayptr = (void *)dev + prop->arrayoffset;
+ Error *local_err = NULL;
+ void *eltptr;
+ const char *arrayname;
+ int i;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+ if (*alenptr) {
+ error_setg(errp, "array size property %s may not be set more than once",
+ name);
+ return;
+ }
+ visit_type_uint32(v, alenptr, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ if (!*alenptr) {
+ return;
+ }
+
+ /* DEFINE_PROP_ARRAY guarantees that name should start with this prefix;
+ * strip it off so we can get the name of the array itself.
+ */
+ assert(strncmp(name, PROP_ARRAY_LEN_PREFIX,
+ strlen(PROP_ARRAY_LEN_PREFIX)) == 0);
+ arrayname = name + strlen(PROP_ARRAY_LEN_PREFIX);
+
+ /* Note that it is the responsibility of the individual device's deinit
+ * to free the array proper.
+ */
+ *arrayptr = eltptr = g_malloc0(*alenptr * prop->arrayfieldsize);
+ for (i = 0; i < *alenptr; i++, eltptr += prop->arrayfieldsize) {
+ char *propname = g_strdup_printf("%s[%d]", arrayname, i);
+ ArrayElementProperty *arrayprop = g_new0(ArrayElementProperty, 1);
+ arrayprop->release = prop->arrayinfo->release;
+ arrayprop->propname = propname;
+ arrayprop->prop.info = prop->arrayinfo;
+ arrayprop->prop.name = propname;
+ /* This ugly piece of pointer arithmetic sets up the offset so
+ * that when the underlying get/set hooks call qdev_get_prop_ptr
+ * they get the right answer despite the array element not actually
+ * being inside the device struct.
+ */
+ arrayprop->prop.offset = eltptr - (void *)dev;
+ assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr);
+ object_property_add(obj, propname,
+ arrayprop->prop.info->name,
+ arrayprop->prop.info->get,
+ arrayprop->prop.info->set,
+ array_element_release,
+ arrayprop, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ }
+}
+
+PropertyInfo qdev_prop_arraylen = {
+ .name = "uint32",
+ .get = get_uint32,
+ .set = set_prop_arraylen,
+};
+
+/* --- public helpers --- */
+
+static Property *qdev_prop_walk(Property *props, const char *name)
+{
+ if (!props) {
+ return NULL;
+ }
+ while (props->name) {
+ if (strcmp(props->name, name) == 0) {
+ return props;
+ }
+ props++;
+ }
+ return NULL;
+}
+
+static Property *qdev_prop_find(DeviceState *dev, const char *name)
+{
+ ObjectClass *class;
+ Property *prop;
+
+ /* device properties */
+ class = object_get_class(OBJECT(dev));
+ do {
+ prop = qdev_prop_walk(DEVICE_CLASS(class)->props, name);
+ if (prop) {
+ return prop;
+ }
+ class = object_class_get_parent(class);
+ } while (class != object_class_by_name(TYPE_DEVICE));
+
+ return NULL;
+}
+
+void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
+ 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);
+ break;
+ default:
+ case -EINVAL:
+ error_setg(errp, QERR_PROPERTY_VALUE_BAD,
+ object_get_typename(OBJECT(dev)), 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);
+ break;
+ case 0:
+ break;
+ }
+}
+
+void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
+{
+ object_property_set_bool(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
+{
+ object_property_set_int(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
+{
+ object_property_set_int(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
+{
+ object_property_set_int(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
+{
+ object_property_set_int(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
+{
+ object_property_set_int(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value)
+{
+ object_property_set_str(OBJECT(dev), value, name, &error_abort);
+}
+
+void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
+{
+ char str[2 * 6 + 5 + 1];
+ snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x",
+ value[0], value[1], value[2], value[3], value[4], value[5]);
+
+ object_property_set_str(OBJECT(dev), str, name, &error_abort);
+}
+
+void qdev_prop_set_enum(DeviceState *dev, const char *name, int value)
+{
+ Property *prop;
+
+ prop = qdev_prop_find(dev, name);
+ object_property_set_str(OBJECT(dev), prop->info->enum_table[value],
+ name, &error_abort);
+}
+
+void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
+{
+ Property *prop;
+ void **ptr;
+
+ prop = qdev_prop_find(dev, name);
+ assert(prop && prop->info == &qdev_prop_ptr);
+ ptr = qdev_get_prop_ptr(dev, prop);
+ *ptr = value;
+}
+
+static QTAILQ_HEAD(, GlobalProperty) global_props =
+ QTAILQ_HEAD_INITIALIZER(global_props);
+
+void qdev_prop_register_global(GlobalProperty *prop)
+{
+ QTAILQ_INSERT_TAIL(&global_props, prop, next);
+}
+
+void qdev_prop_register_global_list(GlobalProperty *props)
+{
+ int i;
+
+ for (i = 0; props[i].driver != NULL; i++) {
+ qdev_prop_register_global(props+i);
+ }
+}
+
+int qdev_prop_check_globals(void)
+{
+ GlobalProperty *prop;
+ int ret = 0;
+
+ QTAILQ_FOREACH(prop, &global_props, next) {
+ ObjectClass *oc;
+ DeviceClass *dc;
+ if (prop->used) {
+ continue;
+ }
+ if (!prop->user_provided) {
+ continue;
+ }
+ oc = object_class_by_name(prop->driver);
+ oc = object_class_dynamic_cast(oc, TYPE_DEVICE);
+ if (!oc) {
+ error_report("Warning: global %s.%s has invalid class name",
+ prop->driver, prop->property);
+ ret = 1;
+ continue;
+ }
+ dc = DEVICE_CLASS(oc);
+ if (!dc->hotpluggable && !prop->used) {
+ error_report("Warning: global %s.%s=%s not used",
+ prop->driver, prop->property, prop->value);
+ ret = 1;
+ continue;
+ }
+ }
+ return ret;
+}
+
+static void qdev_prop_set_globals_for_type(DeviceState *dev,
+ const char *typename)
+{
+ GlobalProperty *prop;
+
+ QTAILQ_FOREACH(prop, &global_props, next) {
+ Error *err = NULL;
+
+ if (strcmp(typename, prop->driver) != 0) {
+ continue;
+ }
+ prop->used = true;
+ object_property_parse(OBJECT(dev), prop->value, prop->property, &err);
+ if (err != NULL) {
+ assert(prop->user_provided);
+ error_report("Warning: global %s.%s=%s ignored (%s)",
+ prop->driver, prop->property, prop->value,
+ error_get_pretty(err));
+ error_free(err);
+ return;
+ }
+ }
+}
+
+void qdev_prop_set_globals(DeviceState *dev)
+{
+ ObjectClass *class = object_get_class(OBJECT(dev));
+
+ do {
+ qdev_prop_set_globals_for_type(dev, object_class_get_name(class));
+ class = object_class_get_parent(class);
+ } while (class);
+}
+
+/* --- 64bit unsigned int 'size' type --- */
+
+static void get_size(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_size(v, ptr, name, errp);
+}
+
+static void set_size(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+
+ visit_type_size(v, ptr, name, errp);
+}
+
+PropertyInfo qdev_prop_size = {
+ .name = "size",
+ .get = get_size,
+ .set = set_size,
+};
Code Review / kvmfornfv.git / blobdiff