xref: /openbmc/qemu/include/hw/acpi/memory_hotplug.h (revision 7f709ce7)
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 /**
9  * MemStatus:
10  * @is_removing: the memory device in slot has been requested to be ejected.
11  *
12  * This structure stores memory device's status.
13  */
14 typedef struct MemStatus {
15     DeviceState *dimm;
16     bool is_enabled;
17     bool is_inserting;
18     bool is_removing;
19     uint32_t ost_event;
20     uint32_t ost_status;
21 } MemStatus;
22 
23 typedef struct MemHotplugState {
24     bool is_enabled; /* true if memory hotplug is supported */
25     MemoryRegion io;
26     uint32_t selector;
27     uint32_t dev_count;
28     MemStatus *devs;
29 } MemHotplugState;
30 
31 void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
32                               MemHotplugState *state, uint16_t io_base);
33 
34 void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st,
35                          DeviceState *dev, Error **errp);
36 void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev,
37                                    MemHotplugState *mem_st,
38                                    DeviceState *dev, Error **errp);
39 void acpi_memory_unplug_cb(MemHotplugState *mem_st,
40                            DeviceState *dev, Error **errp);
41 
42 extern const VMStateDescription vmstate_memory_hotplug;
43 #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \
44     VMSTATE_STRUCT(memhp, state, 1, \
45                    vmstate_memory_hotplug, MemHotplugState)
46 
47 void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list);
48 
49 void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
50                               const char *res_root,
51                               const char *event_handler_method);
52 #endif
53