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FRET-qemu/hw/qdev-properties.c
dunrong huang a340046614 qdev: Fix memory leak 
The str allocated in visit_type_str was not freed.

The visit_type_str function is an input visitor(<QMP/String/etc>-to-native)
here, it will allocate memory for caller, so the caller is responsible for
freeing the memory.

Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: dunrong huang <riegamaths@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-21 15:40:51 -05:00

1206 lines
29 KiB
C
Raw Blame History

#include "net.h"
#include "qdev.h"
#include "qerror.h"
#include "blockdev.h"
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
{
void *ptr = dev;
ptr += prop->offset;
return ptr;
}
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;
}
/* Bit */
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->state != DEV_STATE_CREATED) {
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_int8(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;
value = *ptr;
visit_type_int(v, &value, name, errp);
}
static void set_int8(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;
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);
}
}
PropertyInfo qdev_prop_uint8 = {
.name = "uint8",
.get = get_int8,
.set = set_int8,
.min = 0,
.max = 255,
};
/* --- 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_int8,
.set = set_int8,
.min = 0,
.max = 255,
};
/* --- 16bit integer --- */
static void get_int16(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;
value = *ptr;
visit_type_int(v, &value, name, errp);
}
static void set_int16(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;
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);
}
}
PropertyInfo qdev_prop_uint16 = {
.name = "uint16",
.get = get_int16,
.set = set_int16,
.min = 0,
.max = 65535,
};
/* --- 32bit integer --- */
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);
}
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);
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);
}
}
PropertyInfo qdev_prop_uint32 = {
.name = "uint32",
.get = get_int32,
.set = set_int32,
.min = 0,
.max = 0xFFFFFFFFULL,
};
PropertyInfo qdev_prop_int32 = {
.name = "int32",
.get = get_int32,
.set = set_int32,
.min = -0x80000000LL,
.max = 0x7FFFFFFFLL,
};
/* --- 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_int32,
.set = set_int32,
.min = 0,
.max = 0xFFFFFFFFULL,
};
/* --- 64bit integer --- */
static void get_int64(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);
visit_type_int(v, ptr, name, errp);
}
static void set_int64(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);
if (dev->state != DEV_STATE_CREATED) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_int(v, ptr, name, errp);
}
PropertyInfo qdev_prop_uint64 = {
.name = "uint64",
.get = get_int64,
.set = set_int64,
};
/* --- 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_int64,
.set = set_int64,
};
/* --- 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->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 (*ptr) {
g_free(*ptr);
}
*ptr = str;
}
PropertyInfo qdev_prop_string = {
.name = "string",
.print = print_string,
.release = release_string,
.get = get_string,
.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_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_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)
{
VLANClientState *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)
{
VLANClientState *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)
{
VLANState **ptr = qdev_get_prop_ptr(dev, prop);
if (*ptr) {
return snprintf(dest, len, "%d", (*ptr)->id);
} else {
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;
VLANState **ptr = qdev_get_prop_ptr(dev, prop);
int64_t id;
id = *ptr ? (*ptr)->id : -1;
visit_type_int(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;
VLANState **ptr = qdev_get_prop_ptr(dev, prop);
Error *local_err = NULL;
int64_t id;
VLANState *vlan;
if (dev->state != DEV_STATE_CREATED) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_int(v, &id, name, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
if (id == -1) {
*ptr = NULL;
return;
}
vlan = qemu_find_vlan(id, 1);
if (!vlan) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE,
name, prop->info->name);
return;
}
*ptr = vlan;
}
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! */
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->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;
}
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));
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->state != DEV_STATE_CREATED) {
error_set(errp, QERR_PERMISSION_DENIED);
return;
}
visit_type_enum(v, ptr, prop->info->enum_table,
prop->info->name, prop->name, errp);
}
PropertyInfo qdev_prop_losttickpolicy = {
.name = "LostTickPolicy",
.enum_table = lost_tick_policy_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;
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
unsigned int slot, fn, n;
Error *local_err = NULL;
char *str;
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_free(local_err);
return set_int32(obj, v, opaque, name, errp);
}
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)
{
uint32_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,
/* FIXME: this should be -1...255, but the address is stored
* into an uint32_t rather than int32_t.
*/
.min = 0,
.max = 0xFFFFFFFFULL,
};
/* --- blocksize --- */
static void set_blocksize(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;
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) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
dev->id?:"", name, value, prop->info->min,
prop->info->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);
return;
}
*ptr = value;
}
PropertyInfo qdev_prop_blocksize = {
.name = "blocksize",
.get = get_int16,
.set = set_blocksize,
.min = 512,
.max = 65024,
};
/* --- 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)
{
Property *prop;
/* device properties */
prop = qdev_prop_walk(qdev_get_props(dev), name);
if (prop)
return prop;
/* bus properties */
prop = qdev_prop_walk(dev->parent_bus->info->props, name);
if (prop)
return prop;
return NULL;
}
int qdev_prop_exists(DeviceState *dev, const char *name)
{
return qdev_prop_find(dev, name) ? true : false;
}
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, char *value)
{
Error *errp = NULL;
object_property_set_str(OBJECT(dev), value, name, &errp);
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, VLANClientState *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_vlan(DeviceState *dev, const char *name, VLANState *value)
{
Error *errp = NULL;
object_property_set_int(OBJECT(dev), value ? value->id : -1, 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;
}
void qdev_prop_set_defaults(DeviceState *dev, Property *props)
{
Object *obj = OBJECT(dev);
if (!props)
return;
for (; props->name; props++) {
Error *errp = NULL;
if (props->qtype == QTYPE_NONE) {
continue;
}
if (props->qtype == QTYPE_QBOOL) {
object_property_set_bool(obj, props->defval, props->name, &errp);
} else if (props->info->enum_table) {
object_property_set_str(obj, props->info->enum_table[props->defval],
props->name, &errp);
} else if (props->qtype == QTYPE_QINT) {
object_property_set_int(obj, props->defval, props->name, &errp);
}
assert_no_error(errp);
}
}
static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
static 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)
{
GlobalProperty *prop;
QTAILQ_FOREACH(prop, &global_props, next) {
if (strcmp(object_get_typename(OBJECT(dev)), prop->driver) != 0 &&
strcmp(qdev_get_bus_info(dev)->name, prop->driver) != 0) {
continue;
}
if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
exit(1);
}
}
}
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);
}
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