diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/hw/core/qdev-properties.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/hw/core/qdev-properties.c')
-rw-r--r-- | qemu/hw/core/qdev-properties.c | 1113 |
1 files changed, 1113 insertions, 0 deletions
diff --git a/qemu/hw/core/qdev-properties.c b/qemu/hw/core/qdev-properties.c new file mode 100644 index 000000000..04fd80a4d --- /dev/null +++ b/qemu/hw/core/qdev-properties.c @@ -0,0 +1,1113 @@ +#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, +}; |