#include "net/net.h" #include "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, }; /* --- 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); }