On Mon, 9 Jun 2014 18:25:16 +0800 Hu Tao <hu...@cn.fujitsu.com> wrote:
> This allows the superclass to set various policies on the memory > region that the subclass creates. Drops hostmem-ram's complete method > accordingly. > > While at file hostmem.c, s/hostmemory/host_memory/ to keep names > consistant. nitpick, it would be better to split rename s/hostmemory/host_memory/ in separate patch > > Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> > Signed-off-by: Hu Tao <hu...@cn.fujitsu.com> > --- > backends/hostmem-ram.c | 7 +++---- > backends/hostmem.c | 40 ++++++++++++++++++++++++++++++---------- > include/sysemu/hostmem.h | 2 ++ > 3 files changed, 35 insertions(+), 14 deletions(-) > > diff --git a/backends/hostmem-ram.c b/backends/hostmem-ram.c > index bba2ebc..d9a8290 100644 > --- a/backends/hostmem-ram.c > +++ b/backends/hostmem-ram.c > @@ -16,9 +16,8 @@ > > > static void > -ram_backend_memory_init(UserCreatable *uc, Error **errp) > +ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) > { > - HostMemoryBackend *backend = MEMORY_BACKEND(uc); > char *path; > > if (!backend->size) { > @@ -35,9 +34,9 @@ ram_backend_memory_init(UserCreatable *uc, Error **errp) > static void > ram_backend_class_init(ObjectClass *oc, void *data) > { > - UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); > + HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc); > > - ucc->complete = ram_backend_memory_init; > + bc->alloc = ram_backend_memory_alloc; > } > > static const TypeInfo ram_backend_info = { > diff --git a/backends/hostmem.c b/backends/hostmem.c > index 2f578ac..cc57c13 100644 > --- a/backends/hostmem.c > +++ b/backends/hostmem.c > @@ -17,7 +17,7 @@ > #include "qom/object_interfaces.h" > > static void > -hostmemory_backend_get_size(Object *obj, Visitor *v, void *opaque, > +host_memory_backend_get_size(Object *obj, Visitor *v, void *opaque, > const char *name, Error **errp) > { > HostMemoryBackend *backend = MEMORY_BACKEND(obj); > @@ -27,7 +27,7 @@ hostmemory_backend_get_size(Object *obj, Visitor *v, void > *opaque, > } > > static void > -hostmemory_backend_set_size(Object *obj, Visitor *v, void *opaque, > +host_memory_backend_set_size(Object *obj, Visitor *v, void *opaque, > const char *name, Error **errp) > { > HostMemoryBackend *backend = MEMORY_BACKEND(obj); > @@ -53,14 +53,14 @@ out: > error_propagate(errp, local_err); > } > > -static void hostmemory_backend_init(Object *obj) > +static void host_memory_backend_init(Object *obj) > { > object_property_add(obj, "size", "int", > - hostmemory_backend_get_size, > - hostmemory_backend_set_size, NULL, NULL, NULL); > + host_memory_backend_get_size, > + host_memory_backend_set_size, NULL, NULL, NULL); > } > > -static void hostmemory_backend_finalize(Object *obj) > +static void host_memory_backend_finalize(Object *obj) > { > HostMemoryBackend *backend = MEMORY_BACKEND(obj); > > @@ -75,14 +75,34 @@ host_memory_backend_get_memory(HostMemoryBackend > *backend, Error **errp) > return memory_region_size(&backend->mr) ? &backend->mr : NULL; > } > > -static const TypeInfo hostmemory_backend_info = { > +static void > +host_memory_backend_memory_complete(UserCreatable *uc, Error **errp) > +{ > + HostMemoryBackend *backend = MEMORY_BACKEND(uc); > + HostMemoryBackendClass *bc = MEMORY_BACKEND_GET_CLASS(uc); > + > + if (bc->alloc) { > + bc->alloc(backend, errp); > + } > +} > + > +static void > +host_memory_backend_class_init(ObjectClass *oc, void *data) > +{ > + UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); > + > + ucc->complete = host_memory_backend_memory_complete; > +} > + > +static const TypeInfo host_memory_backend_info = { > .name = TYPE_MEMORY_BACKEND, > .parent = TYPE_OBJECT, > .abstract = true, > .class_size = sizeof(HostMemoryBackendClass), > + .class_init = host_memory_backend_class_init, > .instance_size = sizeof(HostMemoryBackend), > - .instance_init = hostmemory_backend_init, > - .instance_finalize = hostmemory_backend_finalize, > + .instance_init = host_memory_backend_init, > + .instance_finalize = host_memory_backend_finalize, > .interfaces = (InterfaceInfo[]) { > { TYPE_USER_CREATABLE }, > { } > @@ -91,7 +111,7 @@ static const TypeInfo hostmemory_backend_info = { > > static void register_types(void) > { > - type_register_static(&hostmemory_backend_info); > + type_register_static(&host_memory_backend_info); > } > > type_init(register_types); > diff --git a/include/sysemu/hostmem.h b/include/sysemu/hostmem.h > index 4fc081e..923f672 100644 > --- a/include/sysemu/hostmem.h > +++ b/include/sysemu/hostmem.h > @@ -34,6 +34,8 @@ typedef struct HostMemoryBackendClass > HostMemoryBackendClass; > */ > struct HostMemoryBackendClass { > ObjectClass parent_class; > + > + void (*alloc)(HostMemoryBackend *backend, Error **errp); > }; > > /** > -- > 1.9.3 > -- Regards, Igor