include/hw/acpi/memory_hotplug.h

   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