| 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/core/qdev.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 |