diff options
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/core/fw-path-provider.c | 51 | ||||
| -rw-r--r-- | hw/core/qdev.c | 18 |
3 files changed, 69 insertions, 1 deletions
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs index 981593c7e6..5377d052e9 100644 --- a/hw/core/Makefile.objs +++ b/hw/core/Makefile.objs @@ -1,5 +1,6 @@ # core qdev-related obj files, also used by *-user: common-obj-y += qdev.o qdev-properties.o +common-obj-y += fw-path-provider.o # irq.o needed for qdev GPIO handling: common-obj-y += irq.o common-obj-y += hotplug.o diff --git a/hw/core/fw-path-provider.c b/hw/core/fw-path-provider.c new file mode 100644 index 0000000000..b11715733d --- /dev/null +++ b/hw/core/fw-path-provider.c @@ -0,0 +1,51 @@ +/* + * Firmware patch provider class and helpers. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; under version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "hw/fw-path-provider.h" + +char *fw_path_provider_get_dev_path(FWPathProvider *p, BusState *bus, + DeviceState *dev) +{ + FWPathProviderClass *k = FW_PATH_PROVIDER_GET_CLASS(p); + + return k->get_dev_path(p, bus, dev); +} + +char *fw_path_provider_try_get_dev_path(Object *o, BusState *bus, + DeviceState *dev) +{ + FWPathProvider *p = (FWPathProvider *) + object_dynamic_cast(o, TYPE_FW_PATH_PROVIDER); + + if (p) { + return fw_path_provider_get_dev_path(p, bus, dev); + } + + return NULL; +} + +static const TypeInfo fw_path_provider_info = { + .name = TYPE_FW_PATH_PROVIDER, + .parent = TYPE_INTERFACE, + .class_size = sizeof(FWPathProviderClass), +}; + +static void fw_path_provider_register_types(void) +{ + type_register_static(&fw_path_provider_info); +} + +type_init(fw_path_provider_register_types) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 9f0a522ee8..cd09cd4d95 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -26,6 +26,7 @@ this API directly. */ #include "hw/qdev.h" +#include "hw/fw-path-provider.h" #include "sysemu/sysemu.h" #include "qapi/error.h" #include "qapi/qmp/qerror.h" @@ -568,6 +569,18 @@ static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev) return NULL; } +static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev) +{ + Object *obj = OBJECT(dev); + char *d = NULL; + + while (!d && obj->parent) { + obj = obj->parent; + d = fw_path_provider_try_get_dev_path(obj, bus, dev); + } + return d; +} + static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) { int l = 0; @@ -575,7 +588,10 @@ static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) if (dev && dev->parent_bus) { char *d; l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); - d = bus_get_fw_dev_path(dev->parent_bus, dev); + d = qdev_get_fw_dev_path_from_handler(dev->parent_bus, dev); + if (!d) { + d = bus_get_fw_dev_path(dev->parent_bus, dev); + } if (d) { l += snprintf(p + l, size - l, "%s", d); g_free(d); |