53     return 0;  in memory_device_addr_sort()
68     return 0;  in memory_device_build_list()
85 static unsigned int get_reserved_memslots(MachineState *ms)  in get_reserved_memslots()  argument
87     if (ms->device_memory->used_memslots >  in get_reserved_memslots()
88         ms->device_memory->required_memslots) {  in get_reserved_memslots()
90         return 0;  in get_reserved_memslots()
92     return ms->device_memory->required_memslots -  in get_reserved_memslots()
93            ms->device_memory->used_memslots;  in get_reserved_memslots()
99         return 0;  in memory_devices_get_reserved_memslots()
113 static unsigned int memory_device_memslot_decision_limit(MachineState *ms,  in memory_device_memslot_decision_limit()  argument
116     const unsigned int reserved = get_reserved_memslots(ms);  in memory_device_memslot_decision_limit()
141         ms->device_memory->required_memslots) {  in memory_device_memslot_decision_limit()
145                ms->device_memory->required_memslots;  in memory_device_memslot_decision_limit()
159     if (size == ms->maxram_size - ms->ram_size) {  in memory_device_memslot_decision_limit()
167     available_space = ms->maxram_size - ms->ram_size -  in memory_device_memslot_decision_limit()
168                       ms->device_memory->used_region_size;  in memory_device_memslot_decision_limit()
173 static void memory_device_check_addable(MachineState *ms, MemoryDeviceState *md,  in memory_device_check_addable()  argument
177     const uint64_t used_region_size = ms->device_memory->used_region_size;  in memory_device_check_addable()
179     const unsigned int reserved_memslots = get_reserved_memslots(ms);  in memory_device_check_addable()
187         memslot_limit = memory_device_memslot_decision_limit(ms, mr);  in memory_device_check_addable()
205         used_region_size + size > ms->maxram_size - ms->ram_size) {  in memory_device_check_addable()
206         error_setg(errp, "not enough space, currently 0x%" PRIx64  in memory_device_check_addable()
207                    " in use of total space for memory devices 0x" RAM_ADDR_FMT,  in memory_device_check_addable()
208                    used_region_size, ms->maxram_size - ms->ram_size);  in memory_device_check_addable()
214 static uint64_t memory_device_get_free_addr(MachineState *ms,  in memory_device_get_free_addr()  argument
222     range_init_nofail(&as, ms->device_memory->base,  in memory_device_get_free_addr()
223                       memory_region_size(&ms->device_memory->mr));  in memory_device_get_free_addr()
227         warn_report("the alignment (0x%" PRIx64 ") exceeds the expected"  in memory_device_get_free_addr()
234         error_setg(errp, "address must be aligned to 0x%" PRIx64 " bytes",  in memory_device_get_free_addr()
236         return 0;  in memory_device_get_free_addr()
241             error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64  in memory_device_get_free_addr()
242                        "], usable range for memory devices [0x%" PRIx64 ":0x%"  in memory_device_get_free_addr()
245             return 0;  in memory_device_get_free_addr()
250             return 0;  in memory_device_get_free_addr()
255     object_child_foreach(OBJECT(ms), memory_device_build_list, &list);  in memory_device_get_free_addr()
335     return 0;  in memory_device_plugged_size()
340     uint64_t size = 0;  in get_plugged_memory_size()
347 void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms,  in memory_device_pre_plug()  argument
352     uint64_t addr, align = 0;  in memory_device_pre_plug()
360     if (!ms->device_memory) {  in memory_device_pre_plug()
372     memory_device_check_addable(ms, md, mr, &local_err);  in memory_device_pre_plug()
386         error_setg(errp, "backend memory size must be multiple of 0x%"  in memory_device_pre_plug()
396     addr = memory_device_get_free_addr(ms, !addr ? NULL : &addr, align,  in memory_device_pre_plug()
410 void memory_device_plug(MemoryDeviceState *md, MachineState *ms)  in memory_device_plug()  argument
429     g_assert(ms->device_memory);  in memory_device_plug()
431     ms->device_memory->used_region_size += memory_region_size(mr);  in memory_device_plug()
432     ms->device_memory->required_memslots += memslots;  in memory_device_plug()
434         ms->device_memory->memslot_auto_decision_active++;  in memory_device_plug()
437     memory_region_add_subregion(&ms->device_memory->mr,  in memory_device_plug()
438                                 addr - ms->device_memory->base, mr);  in memory_device_plug()
442 void memory_device_unplug(MemoryDeviceState *md, MachineState *ms)  in memory_device_unplug()  argument
457     g_assert(ms->device_memory);  in memory_device_unplug()
459     memory_region_del_subregion(&ms->device_memory->mr, mr);  in memory_device_unplug()
462         ms->device_memory->memslot_auto_decision_active--;  in memory_device_unplug()
464     ms->device_memory->used_region_size -= memory_region_size(mr);  in memory_device_unplug()
465     ms->device_memory->required_memslots -= memslots;  in memory_device_unplug()
479         return 0;  in memory_device_get_region_size()
529 void machine_memory_devices_init(MachineState *ms, hwaddr base, uint64_t size)  in machine_memory_devices_init()  argument
532     g_assert(!ms->device_memory);  in machine_memory_devices_init()
533     ms->device_memory = g_new0(DeviceMemoryState, 1);  in machine_memory_devices_init()
534     ms->device_memory->base = base;  in machine_memory_devices_init()
536     memory_region_init(&ms->device_memory->mr, OBJECT(ms), "device-memory",  in machine_memory_devices_init()
538     address_space_init(&ms->device_memory->as, &ms->device_memory->mr,  in machine_memory_devices_init()
540     memory_region_add_subregion(get_system_memory(), ms->device_memory->base,  in machine_memory_devices_init()
541                                 &ms->device_memory->mr);  in machine_memory_devices_init()
544     ms->device_memory->listener.region_add = memory_devices_region_add;  in machine_memory_devices_init()
545     ms->device_memory->listener.region_del = memory_devices_region_del;  in machine_memory_devices_init()
546     memory_listener_register(&ms->device_memory->listener,  in machine_memory_devices_init()
547                              &ms->device_memory->as);  in machine_memory_devices_init()