1 files changed, 48 insertions, 0 deletions
diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h
new file mode 100644
index 00000000..1342adb0
--- /dev/null
+++ b/include/hw/acpi/memory_hotplug.h
@@ -0,0 +1,48 @@
+#ifndef QEMU_HW_ACPI_MEMORY_HOTPLUG_H
+#define QEMU_HW_ACPI_MEMORY_HOTPLUG_H
+
+#include "hw/qdev-core.h"
+#include "hw/acpi/acpi.h"
+#include "migration/vmstate.h"
+
+/**
+ * MemStatus:
+ * @is_removing: the memory device in slot has been requested to be ejected.
+ *
+ * This structure stores memory device's status.
+ */
+typedef struct MemStatus {
+    DeviceState *dimm;
+    bool is_enabled;
+    bool is_inserting;
+    bool is_removing;
+    uint32_t ost_event;
+    uint32_t ost_status;
+} MemStatus;
+
+typedef struct MemHotplugState {
+    bool is_enabled; /* true if memory hotplug is supported */
+    MemoryRegion io;
+    uint32_t selector;
+    uint32_t dev_count;
+    MemStatus *devs;
+} MemHotplugState;
+
+void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
+                              MemHotplugState *state);
+
+void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st,
+                         DeviceState *dev, Error **errp);
+void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq irq,
+                                   MemHotplugState *mem_st,
+                                   DeviceState *dev, Error **errp);
+void acpi_memory_unplug_cb(MemHotplugState *mem_st,
+                           DeviceState *dev, Error **errp);
+
+extern const VMStateDescription vmstate_memory_hotplug;
+#define VMSTATE_MEMORY_HOTPLUG(memhp, state) \
+    VMSTATE_STRUCT(memhp, state, 1, \
+                   vmstate_memory_hotplug, MemHotplugState)
+
+void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list);
+#endif