mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
69382d8b3e
qemu/hw/core/qdev-properties.c
Kevin Wolf 8c39825218 block/qdev: Allow configuring rerror/werror with qdev properties 
The rerror/werror policies are implemented in the devices, so that's
where they should be configured. In comparison to the old options in
-drive, the qdev properties are only added to those devices that
actually support them.

If the option isn't given (or "auto" is specified), the setting of the
BlockBackend is used for compatibility with the old options. For block
jobs, "auto" is the same as "enospc".

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-07-13 13:32:27 +02:00

1150 lines
30 KiB
C
Raw Blame History

#include "qemu/osdep.h"
#include "net/net.h"
#include "hw/qdev.h"
#include "qapi/error.h"
#include "hw/pci/pci.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, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
int *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_enum(v, prop->name, ptr, prop->info->enum_table, errp);
}
static void set_enum(Object *obj, Visitor *v, const char *name, void *opaque,
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, prop->name, ptr, prop->info->enum_table, 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, const char *name,
void *opaque, 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, name, &value, errp);
}
static void prop_set_bit(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, &value, &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, const char *name,
void *opaque, 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, name, &value, errp);
}
static void prop_set_bit64(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, &value, &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, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
bool *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_bool(v, name, ptr, errp);
}
static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque,
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, name, ptr, errp);
}
PropertyInfo qdev_prop_bool = {
.name = "bool",
.get = get_bool,
.set = set_bool,
};
/* --- 8bit integer --- */
static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_uint8(v, name, ptr, errp);
}
static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
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, name, ptr, errp);
}
PropertyInfo qdev_prop_uint8 = {
.name = "uint8",
.get = get_uint8,
.set = set_uint8,
};
/* --- 16bit integer --- */
static void get_uint16(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_uint16(v, name, ptr, errp);
}
static void set_uint16(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, ptr, errp);
}
PropertyInfo qdev_prop_uint16 = {
.name = "uint16",
.get = get_uint16,
.set = set_uint16,
};
/* --- 32bit integer --- */
static void get_uint32(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_uint32(v, name, ptr, errp);
}
static void set_uint32(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, ptr, errp);
}
static void get_int32(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
int32_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_int32(v, name, ptr, errp);
}
static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque,
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, name, ptr, 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, const char *name,
void *opaque, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_uint64(v, name, ptr, errp);
}
static void set_uint64(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, ptr, 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, const char *name,
void *opaque, 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, name, &str, errp);
} else {
visit_type_str(v, name, ptr, errp);
}
}
static void set_string(Object *obj, Visitor *v, const char *name,
void *opaque, 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, name, &str, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
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, const char *name, void *opaque,
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, name, &p, errp);
}
static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque,
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, name, &str, &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,
};
/* --- on/off/auto --- */
PropertyInfo qdev_prop_on_off_auto = {
.name = "OnOffAuto",
.description = "on/off/auto",
.enum_table = OnOffAuto_lookup,
.get = get_enum,
.set = set_enum,
};
/* --- 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,
};
/* --- Block device error handling policy --- */
QEMU_BUILD_BUG_ON(sizeof(BlockdevOnError) != sizeof(int));
PropertyInfo qdev_prop_blockdev_on_error = {
.name = "BlockdevOnError",
.description = "Error handling policy, "
"report/ignore/enospc/stop/auto",
.enum_table = BlockdevOnError_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,
};
/* --- FDC default drive types */
PropertyInfo qdev_prop_fdc_drive_type = {
.name = "FdcDriveType",
.description = "FDC drive type, "
"144/288/120/none/auto",
.enum_table = FloppyDriveType_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, const char *name,
void *opaque, 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, name, &str, &local_err);
if (local_err) {
error_free(local_err);
local_err = NULL;
visit_type_int32(v, name, &value, &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, const char *name,
void *opaque, 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, name, &value, &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, const char *name,
void *opaque, 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, name, &p, 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, const char *name,
void *opaque, 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, name, &str, &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, const char *name,
void *opaque, 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, name, alenptr, &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 GList *global_props;
void qdev_prop_register_global(GlobalProperty *prop)
{
global_props = g_list_append(global_props, prop);
}
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)
{
GList *l;
int ret = 0;
for (l = global_props; l; l = l->next) {
GlobalProperty *prop = l->data;
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)
{
GList *l;
for (l = global_props; l; l = l->next) {
GlobalProperty *prop = l->data;
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) {
error_prepend(&err, "can't apply global %s.%s=%s: ",
prop->driver, prop->property, prop->value);
if (prop->errp) {
error_propagate(prop->errp, err);
} else {
assert(prop->user_provided);
error_reportf_err(err, "Warning: ");
}
}
}
}
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, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_size(v, name, ptr, errp);
}
static void set_size(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
visit_type_size(v, name, ptr, errp);
}
PropertyInfo qdev_prop_size = {
.name = "size",
.get = get_size,
.set = set_size,
};
Reference in New Issue View Git Blame Copy Permalink