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 "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