Il 15/07/2013 15:13, Alexey Kardashevskiy ha scritto: >> > >> > The vmstate's pre_save and post_load functions can dispatch to a method >> > in the subclass. Again, i8259 does exactly what you want: >> > >> > static void pic_dispatch_pre_save(void *opaque) >> > { >> > PICCommonState *s = opaque; >> > PICCommonClass *info = PIC_COMMON_GET_CLASS(s); >> > >> > if (info->pre_save) { >> > info->pre_save(s); >> > } >> > } > And this is not a hack. Hm. I do not get it. There is even INTERFACE_CLASS > defined but noone is using it. Instead you are proposing to add callbacks > called from callbacks. And this is all for not having dev==NULL in > vmstate_register()... Gosh :(
This is not about having dev!=NULL. It is about not using vmstate_register at all. Paolo