1 #ifndef QEMU_HW_ACPI_MEMORY_HOTPLUG_H 2 #define QEMU_HW_ACPI_MEMORY_HOTPLUG_H 3 4 #include "qapi/qapi-types-acpi.h" 5 #include "hw/qdev-core.h" 6 #include "hw/acpi/acpi.h" 7 #include "hw/acpi/aml-build.h" 8 9 #define MEMORY_SLOT_SCAN_METHOD "MSCN" 10 #define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" 11 #define MEMORY_HOTPLUG_IO_LEN 24 12 13 /** 14 * MemStatus: 15 * @is_removing: the memory device in slot has been requested to be ejected. 16 * 17 * This structure stores memory device's status. 18 */ 19 typedef struct MemStatus { 20 DeviceState *dimm; 21 bool is_enabled; 22 bool is_inserting; 23 bool is_removing; 24 uint32_t ost_event; 25 uint32_t ost_status; 26 } MemStatus; 27 28 typedef struct MemHotplugState { 29 bool is_enabled; /* true if memory hotplug is supported */ 30 MemoryRegion io; 31 uint32_t selector; 32 uint32_t dev_count; 33 MemStatus *devs; 34 } MemHotplugState; 35 36 void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, 37 MemHotplugState *state, hwaddr io_base); 38 39 void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, 40 DeviceState *dev, Error **errp); 41 void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev, 42 MemHotplugState *mem_st, 43 DeviceState *dev, Error **errp); 44 void acpi_memory_unplug_cb(MemHotplugState *mem_st, 45 DeviceState *dev, Error **errp); 46 47 extern const VMStateDescription vmstate_memory_hotplug; 48 #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \ 49 VMSTATE_STRUCT(memhp, state, 1, \ 50 vmstate_memory_hotplug, MemHotplugState) 51 52 void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list); 53 54 void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, 55 const char *res_root, 56 const char *event_handler_method, 57 AmlRegionSpace rs, hwaddr memhp_io_base); 58 #endif 59