memory_hotplug.h (1946B)
1 #ifndef QEMU_HW_ACPI_MEMORY_HOTPLUG_H 2 #define QEMU_HW_ACPI_MEMORY_HOTPLUG_H 3 4 #include "hw/qdev-core.h" 5 #include "hw/acpi/acpi.h" 6 #include "hw/acpi/aml-build.h" 7 8 #define MEMORY_SLOT_SCAN_METHOD "MSCN" 9 #define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" 10 #define MEMORY_HOTPLUG_IO_LEN 24 11 12 /** 13 * MemStatus: 14 * @is_removing: the memory device in slot has been requested to be ejected. 15 * 16 * This structure stores memory device's status. 17 */ 18 typedef struct MemStatus { 19 DeviceState *dimm; 20 bool is_enabled; 21 bool is_inserting; 22 bool is_removing; 23 uint32_t ost_event; 24 uint32_t ost_status; 25 } MemStatus; 26 27 typedef struct MemHotplugState { 28 bool is_enabled; /* true if memory hotplug is supported */ 29 MemoryRegion io; 30 uint32_t selector; 31 uint32_t dev_count; 32 MemStatus *devs; 33 } MemHotplugState; 34 35 void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, 36 MemHotplugState *state, hwaddr io_base); 37 38 void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, 39 DeviceState *dev, Error **errp); 40 void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev, 41 MemHotplugState *mem_st, 42 DeviceState *dev, Error **errp); 43 void acpi_memory_unplug_cb(MemHotplugState *mem_st, 44 DeviceState *dev, Error **errp); 45 46 extern const VMStateDescription vmstate_memory_hotplug; 47 #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \ 48 VMSTATE_STRUCT(memhp, state, 1, \ 49 vmstate_memory_hotplug, MemHotplugState) 50 51 void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list); 52 53 void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, 54 const char *res_root, 55 const char *event_handler_method, 56 AmlRegionSpace rs, hwaddr memhp_io_base); 57 #endif