diff options
| -rw-r--r-- | Makefile.objs | 2 | ||||
| -rw-r--r-- | Makefile.target | 14 | ||||
| -rw-r--r-- | chardev/Makefile.objs | 5 | ||||
| -rw-r--r-- | chardev/char.c | 2 | ||||
| -rw-r--r-- | hw/Makefile.objs | 2 | ||||
| -rw-r--r-- | hw/core/qdev.c | 6 | ||||
| -rw-r--r-- | hw/display/Makefile.objs | 30 | ||||
| -rw-r--r-- | hw/usb/Makefile.objs | 13 | ||||
| -rw-r--r-- | include/qemu/module.h | 2 | ||||
| -rw-r--r-- | include/qom/object.h | 12 | ||||
| -rw-r--r-- | qdev-monitor.c | 5 | ||||
| -rw-r--r-- | qom/object.c | 14 | ||||
| -rw-r--r-- | qom/qom-qmp-cmds.c | 3 | ||||
| -rw-r--r-- | softmmu/vl.c | 4 | ||||
| -rw-r--r-- | util/module.c | 67 |
15 files changed, 156 insertions, 25 deletions
diff --git a/Makefile.objs b/Makefile.objs index 98383972ee..d22b3b45d7 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -59,6 +59,7 @@ common-obj-y += migration/ common-obj-y += audio/ common-obj-m += audio/ common-obj-y += hw/ +common-obj-m += hw/ common-obj-y += replay/ @@ -70,6 +71,7 @@ common-obj-$(CONFIG_TPM) += tpm.o common-obj-y += backends/ common-obj-y += chardev/ +common-obj-m += chardev/ common-obj-$(CONFIG_SECCOMP) += qemu-seccomp.o qemu-seccomp.o-cflags := $(SECCOMP_CFLAGS) diff --git a/Makefile.target b/Makefile.target index 8ed1eba95b..02bd9d7117 100644 --- a/Makefile.target +++ b/Makefile.target @@ -179,6 +179,20 @@ endif # CONFIG_SOFTMMU dummy := $(call unnest-vars,,obj-y) all-obj-y := $(obj-y) +# +# common-obj-m has some crap here, probably as side effect from +# unnest-vars recursing into target directories to fill obj-y and not +# properly handling the -m case. +# +# Clear common-obj-m as workaround. Fixes suspious dependency errors +# when building devices as modules. A bit hackish, but should be ok +# as long as we do not have any target-specific modules. +# +# The meson-based build system currently in development doesn't need +# unnest-vars and will obsolete this workaround. +# +common-obj-m := + include $(SRC_PATH)/Makefile.objs dummy := $(call unnest-vars,.., \ authz-obj-y \ diff --git a/chardev/Makefile.objs b/chardev/Makefile.objs index d68e1347f9..3a58c9d329 100644 --- a/chardev/Makefile.objs +++ b/chardev/Makefile.objs @@ -18,8 +18,11 @@ chardev-obj-$(CONFIG_WIN32) += char-win.o chardev-obj-$(CONFIG_WIN32) += char-win-stdio.o common-obj-y += msmouse.o wctablet.o testdev.o -common-obj-$(CONFIG_BRLAPI) += baum.o + +ifeq ($(CONFIG_BRLAPI),y) +common-obj-m += baum.o baum.o-cflags := $(SDL_CFLAGS) baum.o-libs := $(BRLAPI_LIBS) +endif common-obj-$(CONFIG_SPICE) += spice.o diff --git a/chardev/char.c b/chardev/char.c index e3051295ac..df697f3ce9 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -527,7 +527,7 @@ static const ChardevClass *char_get_class(const char *driver, Error **errp) const ChardevClass *cc; char *typename = g_strdup_printf("chardev-%s", driver); - oc = object_class_by_name(typename); + oc = module_object_class_by_name(typename); g_free(typename); if (!object_class_dynamic_cast(oc, TYPE_CHARDEV)) { diff --git a/hw/Makefile.objs b/hw/Makefile.objs index 4cbe5e4e57..14b7ea4eb6 100644 --- a/hw/Makefile.objs +++ b/hw/Makefile.objs @@ -43,4 +43,6 @@ devices-dirs-y += smbios/ endif common-obj-y += $(devices-dirs-y) +common-obj-m += display/ +common-obj-m += usb/ obj-y += $(devices-dirs-y) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 2131c7f951..9de16eae05 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -137,6 +137,9 @@ void qdev_set_parent_bus(DeviceState *dev, BusState *bus) */ DeviceState *qdev_new(const char *name) { + if (!object_class_by_name(name)) { + module_load_qom_one(name); + } return DEVICE(object_new(name)); } @@ -147,10 +150,9 @@ DeviceState *qdev_new(const char *name) */ DeviceState *qdev_try_new(const char *name) { - if (!object_class_by_name(name)) { + if (!module_object_class_by_name(name)) { return NULL; } - return DEVICE(object_new(name)); } diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs index 77a7d622bd..e907f3182b 100644 --- a/hw/display/Makefile.objs +++ b/hw/display/Makefile.objs @@ -44,18 +44,24 @@ common-obj-$(CONFIG_ARTIST) += artist.o obj-$(CONFIG_VGA) += vga.o -common-obj-$(CONFIG_QXL) += qxl.o qxl-logger.o qxl-render.o - -obj-$(CONFIG_VIRTIO_GPU) += virtio-gpu-base.o virtio-gpu.o virtio-gpu-3d.o -obj-$(CONFIG_VHOST_USER_GPU) += vhost-user-gpu.o -obj-$(call land,$(CONFIG_VIRTIO_GPU),$(CONFIG_VIRTIO_PCI)) += virtio-gpu-pci.o -obj-$(call land,$(CONFIG_VHOST_USER_GPU),$(CONFIG_VIRTIO_PCI)) += vhost-user-gpu-pci.o -obj-$(CONFIG_VIRTIO_VGA) += virtio-vga.o -obj-$(CONFIG_VHOST_USER_VGA) += vhost-user-vga.o -virtio-gpu.o-cflags := $(VIRGL_CFLAGS) -virtio-gpu.o-libs += $(VIRGL_LIBS) -virtio-gpu-3d.o-cflags := $(VIRGL_CFLAGS) -virtio-gpu-3d.o-libs += $(VIRGL_LIBS) +ifeq ($(CONFIG_QXL),y) +common-obj-m += qxl.mo +qxl.mo-objs = qxl.o qxl-logger.o qxl-render.o +endif + +ifeq ($(CONFIG_VIRTIO_GPU),y) +common-obj-m += virtio-gpu.mo +virtio-gpu-obj-$(CONFIG_VIRTIO_GPU) += virtio-gpu-base.o virtio-gpu.o virtio-gpu-3d.o +virtio-gpu-obj-$(CONFIG_VHOST_USER_GPU) += vhost-user-gpu.o +virtio-gpu-obj-$(call land,$(CONFIG_VIRTIO_GPU),$(CONFIG_VIRTIO_PCI)) += virtio-gpu-pci.o +virtio-gpu-obj-$(call land,$(CONFIG_VHOST_USER_GPU),$(CONFIG_VIRTIO_PCI)) += vhost-user-gpu-pci.o +virtio-gpu-obj-$(CONFIG_VIRTIO_VGA) += virtio-vga.o +virtio-gpu-obj-$(CONFIG_VHOST_USER_VGA) += vhost-user-vga.o +virtio-gpu.mo-objs := $(virtio-gpu-obj-y) +virtio-gpu.mo-cflags := $(VIRGL_CFLAGS) +virtio-gpu.mo-libs := $(VIRGL_LIBS) +endif + common-obj-$(CONFIG_DPCD) += dpcd.o common-obj-$(CONFIG_XLNX_ZYNQMP_ARM) += xlnx_dp.o diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs index fa5c3fa1b8..e342ff59fa 100644 --- a/hw/usb/Makefile.objs +++ b/hw/usb/Makefile.objs @@ -29,11 +29,13 @@ common-obj-$(CONFIG_USB_NETWORK) += dev-network.o ifeq ($(CONFIG_USB_SMARTCARD),y) common-obj-y += dev-smartcard-reader.o -common-obj-$(CONFIG_SMARTCARD) += smartcard.mo +ifeq ($(CONFIG_SMARTCARD),y) +common-obj-m += smartcard.mo smartcard.mo-objs := ccid-card-passthru.o ccid-card-emulated.o smartcard.mo-cflags := $(SMARTCARD_CFLAGS) smartcard.mo-libs := $(SMARTCARD_LIBS) endif +endif ifeq ($(CONFIG_POSIX),y) common-obj-$(CONFIG_USB_STORAGE_MTP) += dev-mtp.o @@ -41,9 +43,12 @@ endif # usb redirection ifeq ($(CONFIG_USB),y) -common-obj-$(CONFIG_USB_REDIR) += redirect.o quirks.o -redirect.o-cflags = $(USB_REDIR_CFLAGS) -redirect.o-libs = $(USB_REDIR_LIBS) +ifeq ($(CONFIG_USB_REDIR),y) +common-obj-m += redirect.mo +redirect.mo-objs = redirect.o quirks.o +redirect.mo-cflags = $(USB_REDIR_CFLAGS) +redirect.mo-libs = $(USB_REDIR_LIBS) +endif endif # usb pass-through diff --git a/include/qemu/module.h b/include/qemu/module.h index 011ae1ae76..9121a475c1 100644 --- a/include/qemu/module.h +++ b/include/qemu/module.h @@ -70,5 +70,7 @@ void register_dso_module_init(void (*fn)(void), module_init_type type); void module_call_init(module_init_type type); bool module_load_one(const char *prefix, const char *lib_name); +void module_load_qom_one(const char *type); +void module_load_qom_all(void); #endif diff --git a/include/qom/object.h b/include/qom/object.h index 94a61ccc3f..51f188137f 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -994,6 +994,18 @@ bool object_class_is_abstract(ObjectClass *klass); */ ObjectClass *object_class_by_name(const char *typename); +/** + * module_object_class_by_name: + * @typename: The QOM typename to obtain the class for. + * + * For objects which might be provided by a module. Behaves like + * object_class_by_name, but additionally tries to load the module + * needed in case the class is not available. + * + * Returns: The class for @typename or %NULL if not found. + */ +ObjectClass *module_object_class_by_name(const char *typename); + void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), const char *implements_type, bool include_abstract, void *opaque); diff --git a/qdev-monitor.c b/qdev-monitor.c index e3083fae39..648b8ac4fa 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -149,6 +149,7 @@ static void qdev_print_devinfos(bool show_no_user) int i; bool cat_printed; + module_load_qom_all(); list = object_class_get_list_sorted(TYPE_DEVICE, false); for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) { @@ -217,13 +218,13 @@ static DeviceClass *qdev_get_device_class(const char **driver, Error **errp) DeviceClass *dc; const char *original_name = *driver; - oc = object_class_by_name(*driver); + oc = module_object_class_by_name(*driver); if (!oc) { const char *typename = find_typename_by_alias(*driver); if (typename) { *driver = typename; - oc = object_class_by_name(*driver); + oc = module_object_class_by_name(*driver); } } diff --git a/qom/object.c b/qom/object.c index 6ece96bc2b..34daaf1280 100644 --- a/qom/object.c +++ b/qom/object.c @@ -985,6 +985,20 @@ ObjectClass *object_class_by_name(const char *typename) return type->class; } +ObjectClass *module_object_class_by_name(const char *typename) +{ + ObjectClass *oc; + + oc = object_class_by_name(typename); +#ifdef CONFIG_MODULES + if (!oc) { + module_load_qom_one(typename); + oc = object_class_by_name(typename); + } +#endif + return oc; +} + ObjectClass *object_class_get_parent(ObjectClass *class) { TypeImpl *type = type_get_parent(class->type); diff --git a/qom/qom-qmp-cmds.c b/qom/qom-qmp-cmds.c index c5249e44d0..5e2c8cbf33 100644 --- a/qom/qom-qmp-cmds.c +++ b/qom/qom-qmp-cmds.c @@ -116,6 +116,7 @@ ObjectTypeInfoList *qmp_qom_list_types(bool has_implements, { ObjectTypeInfoList *ret = NULL; + module_load_qom_all(); object_class_foreach(qom_list_types_tramp, implements, abstract, &ret); return ret; @@ -130,7 +131,7 @@ ObjectPropertyInfoList *qmp_device_list_properties(const char *typename, ObjectPropertyIterator iter; ObjectPropertyInfoList *prop_list = NULL; - klass = object_class_by_name(typename); + klass = module_object_class_by_name(typename); if (klass == NULL) { error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, "Device '%s' not found", typename); diff --git a/softmmu/vl.c b/softmmu/vl.c index ecbc18ba75..3f58ffd4dc 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -1772,8 +1772,8 @@ static bool vga_interface_available(VGAInterfaceType t) assert(t < VGA_TYPE_MAX); return !ti->class_names[0] || - object_class_by_name(ti->class_names[0]) || - object_class_by_name(ti->class_names[1]); + module_object_class_by_name(ti->class_names[0]) || + module_object_class_by_name(ti->class_names[1]); } static const char * diff --git a/util/module.c b/util/module.c index e48d9aacc0..32b0547b82 100644 --- a/util/module.c +++ b/util/module.c @@ -245,3 +245,70 @@ bool module_load_one(const char *prefix, const char *lib_name) #endif return success; } + +/* + * Building devices and other qom objects modular is mostly useful in + * case they have dependencies to external shared libraries, so we can + * cut down the core qemu library dependencies. Which is the case for + * only a very few devices & objects. + * + * So with the expectation that this will be rather the exception than + * to rule and the list will not gain that many entries go with a + * simple manually maintained list for now. + */ +static struct { + const char *type; + const char *prefix; + const char *module; +} const qom_modules[] = { + { "ccid-card-passthru", "hw-", "usb-smartcard" }, + { "ccid-card-emulated", "hw-", "usb-smartcard" }, + { "usb-redir", "hw-", "usb-redirect" }, + { "qxl-vga", "hw-", "display-qxl" }, + { "qxl", "hw-", "display-qxl" }, + { "virtio-gpu-device", "hw-", "display-virtio-gpu" }, + { "virtio-gpu-pci", "hw-", "display-virtio-gpu" }, + { "virtio-vga", "hw-", "display-virtio-gpu" }, + { "vhost-user-gpu-device", "hw-", "display-virtio-gpu" }, + { "vhost-user-gpu-pci", "hw-", "display-virtio-gpu" }, + { "vhost-user-vga", "hw-", "display-virtio-gpu" }, + { "chardev-braille", "chardev-", "baum" }, +}; + +static bool module_loaded_qom_all; + +void module_load_qom_one(const char *type) +{ + int i; + + if (module_loaded_qom_all) { + return; + } + for (i = 0; i < ARRAY_SIZE(qom_modules); i++) { + if (strcmp(qom_modules[i].type, type) == 0) { + module_load_one(qom_modules[i].prefix, + qom_modules[i].module); + return; + } + } +} + +void module_load_qom_all(void) +{ + int i; + + if (module_loaded_qom_all) { + return; + } + for (i = 0; i < ARRAY_SIZE(qom_modules); i++) { + if (i > 0 && (strcmp(qom_modules[i - 1].module, + qom_modules[i].module) == 0 && + strcmp(qom_modules[i - 1].prefix, + qom_modules[i].prefix) == 0)) { + /* one module implementing multiple types -> load only once */ + continue; + } + module_load_one(qom_modules[i].prefix, qom_modules[i].module); + } + module_loaded_qom_all = true; +} |