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qemu/hw/qdev-properties.c
Peter Maydell 0be6bfac62 qdev: Implement (variable length) array properties 
Add support for declaring array properties for qdev devices.
These work by defining an initial static property 'len-arrayname'
which the user of the device should set to the desired size
of the array. When this property is set, memory is allocated
for the array elements, and dynamic properties "arrayname[0]",
"arrayname[1]"... are created so the user of the device can
then set the values of the individual array elements.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-03-15 16:41:57 +00:00

1079 lines
27 KiB
C
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#include "net/net.h"
#include "hw/qdev.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/blockdev.h"
#include "hw/block-common.h"
#include "net/hub.h"
#include "qapi/visitor.h"
#include "char/char.h"
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) {
error_set(errp, QERR_PERMISSION_DENIED);
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 int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint32_t *p = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, (*p & qdev_get_prop_mask(prop)) ? "on" : "off");
}
static void 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 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) {
error_set(errp, QERR_PERMISSION_DENIED);
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 = "boolean",
.legacy_name = "on/off",
.print = print_bit,
.get = get_bit,
.set = set_bit,
};
/* --- 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) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_uint8(v, ptr, name, errp);
}
PropertyInfo qdev_prop_uint8 = {
.name = "uint8",
.get = get_uint8,
.set = set_uint8,
};
/* --- 8bit hex value --- */
static int parse_hex8(DeviceState *dev, Property *prop, const char *str)
{
uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
char *end;
if (str[0] != '0' || str[1] != 'x') {
return -EINVAL;
}
*ptr = strtoul(str, &end, 16);
if ((*end != '\0') || (end == str)) {
return -EINVAL;
}
return 0;
}
static int print_hex8(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "0x%" PRIx8, *ptr);
}
PropertyInfo qdev_prop_hex8 = {
.name = "uint8",
.legacy_name = "hex8",
.parse = parse_hex8,
.print = print_hex8,
.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) {
error_set(errp, QERR_PERMISSION_DENIED);
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) {
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);
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) {
error_set(errp, QERR_PERMISSION_DENIED);
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,
};
/* --- 32bit hex value --- */
static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
char *end;
if (str[0] != '0' || str[1] != 'x') {
return -EINVAL;
}
*ptr = strtoul(str, &end, 16);
if ((*end != '\0') || (end == str)) {
return -EINVAL;
}
return 0;
}
static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "0x%" PRIx32, *ptr);
}
PropertyInfo qdev_prop_hex32 = {
.name = "uint32",
.legacy_name = "hex32",
.parse = parse_hex32,
.print = print_hex32,
.get = get_uint32,
.set = set_uint32,
};
/* --- 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) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_uint64(v, ptr, name, errp);
}
PropertyInfo qdev_prop_uint64 = {
.name = "uint64",
.get = get_uint64,
.set = set_uint64,
};
/* --- 64bit hex value --- */
static int parse_hex64(DeviceState *dev, Property *prop, const char *str)
{
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
char *end;
if (str[0] != '0' || str[1] != 'x') {
return -EINVAL;
}
*ptr = strtoull(str, &end, 16);
if ((*end != '\0') || (end == str)) {
return -EINVAL;
}
return 0;
}
static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "0x%" PRIx64, *ptr);
}
PropertyInfo qdev_prop_hex64 = {
.name = "uint64",
.legacy_name = "hex64",
.parse = parse_hex64,
.print = print_hex64,
.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 int print_string(DeviceState *dev, Property *prop, char *dest,
size_t len)
{
char **ptr = qdev_get_prop_ptr(dev, prop);
if (!*ptr) {
return snprintf(dest, len, "<null>");
}
return snprintf(dest, len, "\"%s\"", *ptr);
}
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) {
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 (*ptr) {
g_free(*ptr);
}
*ptr = str;
}
PropertyInfo qdev_prop_string = {
.name = "string",
.print = print_string,
.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) {
error_set(errp, QERR_PERMISSION_DENIED);
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 = "macaddr",
.get = get_mac,
.set = set_mac,
};
/* --- lost tick policy --- */
static const char *lost_tick_policy_table[LOST_TICK_MAX+1] = {
[LOST_TICK_DISCARD] = "discard",
[LOST_TICK_DELAY] = "delay",
[LOST_TICK_MERGE] = "merge",
[LOST_TICK_SLEW] = "slew",
[LOST_TICK_MAX] = NULL,
};
QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int));
PropertyInfo qdev_prop_losttickpolicy = {
.name = "LostTickPolicy",
.enum_table = lost_tick_policy_table,
.get = get_enum,
.set = set_enum,
};
/* --- BIOS CHS translation */
static const char *bios_chs_trans_table[] = {
[BIOS_ATA_TRANSLATION_AUTO] = "auto",
[BIOS_ATA_TRANSLATION_NONE] = "none",
[BIOS_ATA_TRANSLATION_LBA] = "lba",
};
PropertyInfo qdev_prop_bios_chs_trans = {
.name = "bios-chs-trans",
.enum_table = bios_chs_trans_table,
.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) {
error_set(errp, QERR_PERMISSION_DENIED);
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_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) {
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",
.legacy_name = "pci-devfn",
.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) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_uint16(v, &value, name, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
if (value < min || value > max) {
error_set(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_set(errp, QERR_PROPERTY_VALUE_NOT_POWER_OF_2,
dev->id?:"", name, (int64_t)value);
return;
}
*ptr = value;
}
PropertyInfo qdev_prop_blocksize = {
.name = "blocksize",
.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) {
error_set(errp, QERR_PERMISSION_DENIED);
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 = "pci-host-devaddr",
.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;
void *eltptr;
const char *arrayname;
int i;
if (dev->realized) {
error_set(errp, QERR_PERMISSION_DENIED);
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) {
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_set(errp, QERR_PROPERTY_VALUE_IN_USE,
object_get_typename(OBJECT(dev)), prop->name, value);
break;
default:
case -EINVAL:
error_set(errp, QERR_PROPERTY_VALUE_BAD,
object_get_typename(OBJECT(dev)), prop->name, value);
break;
case -ENOENT:
error_set(errp, QERR_PROPERTY_VALUE_NOT_FOUND,
object_get_typename(OBJECT(dev)), prop->name, value);
break;
case 0:
break;
}
}
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
{
char *legacy_name;
Error *err = NULL;
legacy_name = g_strdup_printf("legacy-%s", name);
if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
object_property_parse(OBJECT(dev), value, legacy_name, &err);
} else {
object_property_parse(OBJECT(dev), value, name, &err);
}
g_free(legacy_name);
if (err) {
qerror_report_err(err);
error_free(err);
return -1;
}
return 0;
}
void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
{
Error *errp = NULL;
object_property_set_bool(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value)
{
Error *errp = NULL;
object_property_set_str(OBJECT(dev), value, name, &errp);
assert_no_error(errp);
}
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
{
Error *errp = NULL;
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, &errp);
assert_no_error(errp);
}
void qdev_prop_set_enum(DeviceState *dev, const char *name, int value)
{
Property *prop;
Error *errp = NULL;
prop = qdev_prop_find(dev, name);
object_property_set_str(OBJECT(dev), prop->info->enum_table[value],
name, &errp);
assert_no_error(errp);
}
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);
}
}
void qdev_prop_set_globals(DeviceState *dev)
{
ObjectClass *class = object_get_class(OBJECT(dev));
do {
GlobalProperty *prop;
QTAILQ_FOREACH(prop, &global_props, next) {
if (strcmp(object_class_get_name(class), prop->driver) != 0) {
continue;
}
if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
exit(1);
}
}
class = object_class_get_parent(class);
} while (class);
}
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