#include "net/net.h"
-#include "qdev.h"
+#include "hw/qdev.h"
#include "qapi/qmp/qerror.h"
-#include "blockdev.h"
-#include "hw/block-common.h"
+#include "sysemu/blockdev.h"
+#include "hw/block/block.h"
#include "net/hub.h"
#include "qapi/visitor.h"
-#include "qemu-char.h"
+#include "char/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_get_prop_ptr(DeviceState *dev, Property *prop)
{
return ptr;
}
-static void get_pointer(Object *obj, Visitor *v, Property *prop,
- const char *(*print)(void *ptr),
- const char *name, Error **errp)
-{
- DeviceState *dev = DEVICE(obj);
- void **ptr = qdev_get_prop_ptr(dev, prop);
- char *p;
-
- p = (char *) (*ptr ? print(*ptr) : "");
- visit_type_str(v, &p, name, errp);
-}
-
-static void set_pointer(Object *obj, Visitor *v, Property *prop,
- int (*parse)(DeviceState *dev, const char *str,
- void **ptr),
- const char *name, Error **errp)
-{
- DeviceState *dev = DEVICE(obj);
- Error *local_err = NULL;
- void **ptr = qdev_get_prop_ptr(dev, prop);
- char *str;
- int ret;
-
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
- return;
- }
-
- visit_type_str(v, &str, name, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- if (!*str) {
- g_free(str);
- *ptr = NULL;
- return;
- }
- ret = parse(dev, str, ptr);
- error_set_from_qdev_prop_error(errp, ret, dev, prop, str);
- g_free(str);
-}
-
static void get_enum(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
Property *prop = opaque;
int *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
{
uint32_t *p = qdev_get_prop_ptr(dev, props);
uint32_t mask = qdev_get_prop_mask(props);
- if (val)
+ if (val) {
*p |= mask;
- else
+ } else {
*p &= ~mask;
+ }
}
static int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len)
Error *local_err = NULL;
bool value;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
Property *prop = opaque;
uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
Property *prop = opaque;
uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
Property *prop = opaque;
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
Property *prop = opaque;
int32_t *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop));
}
-static int print_string(DeviceState *dev, Property *prop, char *dest, size_t len)
+static int print_string(DeviceState *dev, Property *prop, char *dest,
+ size_t len)
{
char **ptr = qdev_get_prop_ptr(dev, prop);
- if (!*ptr)
+ if (!*ptr) {
return snprintf(dest, len, "<null>");
+ }
return snprintf(dest, len, "\"%s\"", *ptr);
}
Error *local_err = NULL;
char *str;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
.set = set_string,
};
-/* --- drive --- */
-
-static int parse_drive(DeviceState *dev, const char *str, void **ptr)
-{
- BlockDriverState *bs;
-
- bs = bdrv_find(str);
- if (bs == NULL)
- return -ENOENT;
- if (bdrv_attach_dev(bs, dev) < 0)
- return -EEXIST;
- *ptr = bs;
- return 0;
-}
-
-static void release_drive(Object *obj, const char *name, void *opaque)
-{
- DeviceState *dev = DEVICE(obj);
- Property *prop = opaque;
- BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
-
- if (*ptr) {
- bdrv_detach_dev(*ptr, dev);
- blockdev_auto_del(*ptr);
- }
-}
-
-static const char *print_drive(void *ptr)
-{
- return bdrv_get_device_name(ptr);
-}
-
-static void get_drive(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- get_pointer(obj, v, opaque, print_drive, name, errp);
-}
-
-static void set_drive(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- set_pointer(obj, v, opaque, parse_drive, name, errp);
-}
-
-PropertyInfo qdev_prop_drive = {
- .name = "drive",
- .get = get_drive,
- .set = set_drive,
- .release = release_drive,
-};
-
-/* --- character device --- */
-
-static int parse_chr(DeviceState *dev, const char *str, void **ptr)
-{
- CharDriverState *chr = qemu_chr_find(str);
- if (chr == NULL) {
- return -ENOENT;
- }
- if (chr->avail_connections < 1) {
- return -EEXIST;
- }
- *ptr = chr;
- --chr->avail_connections;
- return 0;
-}
-
-static void release_chr(Object *obj, const char *name, void *opaque)
-{
- DeviceState *dev = DEVICE(obj);
- Property *prop = opaque;
- CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
-
- if (*ptr) {
- qemu_chr_add_handlers(*ptr, NULL, NULL, NULL, NULL);
- }
-}
-
-
-static const char *print_chr(void *ptr)
-{
- CharDriverState *chr = ptr;
-
- return chr->label ? chr->label : "";
-}
-
-static void get_chr(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- get_pointer(obj, v, opaque, print_chr, name, errp);
-}
-
-static void set_chr(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- set_pointer(obj, v, opaque, parse_chr, name, errp);
-}
-
-PropertyInfo qdev_prop_chr = {
- .name = "chr",
- .get = get_chr,
- .set = set_chr,
- .release = release_chr,
-};
-
-/* --- netdev device --- */
-
-static int parse_netdev(DeviceState *dev, const char *str, void **ptr)
-{
- NetClientState *netdev = qemu_find_netdev(str);
-
- if (netdev == NULL) {
- return -ENOENT;
- }
- if (netdev->peer) {
- return -EEXIST;
- }
- *ptr = netdev;
- return 0;
-}
-
-static const char *print_netdev(void *ptr)
-{
- NetClientState *netdev = ptr;
-
- return netdev->name ? netdev->name : "";
-}
-
-static void get_netdev(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- get_pointer(obj, v, opaque, print_netdev, name, errp);
-}
-
-static void set_netdev(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- set_pointer(obj, v, opaque, parse_netdev, name, errp);
-}
-
-PropertyInfo qdev_prop_netdev = {
- .name = "netdev",
- .get = get_netdev,
- .set = set_netdev,
-};
-
-/* --- vlan --- */
-
-static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
-{
- NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
-
- if (*ptr) {
- int id;
- if (!net_hub_id_for_client(*ptr, &id)) {
- return snprintf(dest, len, "%d", id);
- }
- }
-
- return snprintf(dest, len, "<null>");
-}
-
-static void get_vlan(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- DeviceState *dev = DEVICE(obj);
- Property *prop = opaque;
- NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
- int32_t id = -1;
-
- if (*ptr) {
- int hub_id;
- if (!net_hub_id_for_client(*ptr, &hub_id)) {
- id = hub_id;
- }
- }
-
- visit_type_int32(v, &id, name, errp);
-}
-
-static void set_vlan(Object *obj, Visitor *v, void *opaque,
- const char *name, Error **errp)
-{
- DeviceState *dev = DEVICE(obj);
- Property *prop = opaque;
- NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
- Error *local_err = NULL;
- int32_t id;
- NetClientState *hubport;
-
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
- return;
- }
-
- visit_type_int32(v, &id, name, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- if (id == -1) {
- *ptr = NULL;
- return;
- }
-
- hubport = net_hub_port_find(id);
- if (!hubport) {
- error_set(errp, QERR_INVALID_PARAMETER_VALUE,
- name, prop->info->name);
- return;
- }
- *ptr = hubport;
-}
-
-PropertyInfo qdev_prop_vlan = {
- .name = "vlan",
- .print = print_vlan,
- .get = get_vlan,
- .set = set_vlan,
-};
-
/* --- pointer --- */
/* Not a proper property, just for dirty hacks. TODO Remove it! */
int i, pos;
char *str, *p;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
}
for (i = 0, pos = 0; i < 6; i++, pos += 3) {
- if (!qemu_isxdigit(str[pos]))
+ if (!qemu_isxdigit(str[pos])) {
goto inval;
- if (!qemu_isxdigit(str[pos+1]))
+ }
+ if (!qemu_isxdigit(str[pos+1])) {
goto inval;
+ }
if (i == 5) {
- if (str[pos+2] != '\0')
+ if (str[pos+2] != '\0') {
goto inval;
+ }
} else {
- if (str[pos+2] != ':' && str[pos+2] != '-')
+ if (str[pos+2] != ':' && str[pos+2] != '-') {
goto inval;
+ }
}
mac->a[i] = strtol(str+pos, &p, 16);
}
Error *local_err = NULL;
char *str;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
g_free(str);
}
-static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
+static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest,
+ size_t len)
{
int32_t *ptr = qdev_get_prop_ptr(dev, prop);
const int64_t min = 512;
const int64_t max = 32768;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
unsigned long dom = 0, bus = 0;
unsigned int slot = 0, func = 0;
- if (dev->state != DEV_STATE_CREATED) {
- error_set(errp, QERR_PERMISSION_DENIED);
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
return;
}
.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;
+ 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, errp);
+ if (error_is_set(errp)) {
+ 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, errp);
+ if (error_is_set(errp)) {
+ 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)
+ if (!props) {
return NULL;
+ }
while (props->name) {
- if (strcmp(props->name, name) == 0)
+ if (strcmp(props->name, name) == 0) {
return props;
+ }
props++;
}
return NULL;
assert_no_error(errp);
}
-int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value)
-{
- Error *errp = NULL;
- const char *bdrv_name = value ? bdrv_get_device_name(value) : "";
- object_property_set_str(OBJECT(dev), bdrv_name,
- name, &errp);
- if (errp) {
- qerror_report_err(errp);
- error_free(errp);
- return -1;
- }
- return 0;
-}
-
-void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value)
-{
- if (qdev_prop_set_drive(dev, name, value) < 0) {
- exit(1);
- }
-}
-void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
-{
- Error *errp = NULL;
- assert(!value || value->label);
- object_property_set_str(OBJECT(dev),
- value ? value->label : "", name, &errp);
- assert_no_error(errp);
-}
-
-void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value)
-{
- Error *errp = NULL;
- assert(!value || value->name);
- object_property_set_str(OBJECT(dev),
- value ? value->name : "", name, &errp);
- assert_no_error(errp);
-}
-
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
{
Error *errp = NULL;
*ptr = value;
}
-static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
+static QTAILQ_HEAD(, GlobalProperty) global_props =
+ QTAILQ_HEAD_INITIALIZER(global_props);
-static void qdev_prop_register_global(GlobalProperty *prop)
+void qdev_prop_register_global(GlobalProperty *prop)
{
QTAILQ_INSERT_TAIL(&global_props, prop, next);
}
class = object_class_get_parent(class);
} while (class);
}
-
-static int qdev_add_one_global(QemuOpts *opts, void *opaque)
-{
- GlobalProperty *g;
-
- g = g_malloc0(sizeof(*g));
- g->driver = qemu_opt_get(opts, "driver");
- g->property = qemu_opt_get(opts, "property");
- g->value = qemu_opt_get(opts, "value");
- qdev_prop_register_global(g);
- return 0;
-}
-
-void qemu_add_globals(void)
-{
- qemu_opts_foreach(qemu_find_opts("global"), qdev_add_one_global, NULL, 0);
-}
projects / qemu.git / blobdiff