diff options
Diffstat (limited to 'include/hw/acpi/memory_hotplug.h')
-rw-r--r-- | include/hw/acpi/memory_hotplug.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h new file mode 100644 index 000000000..dfe9cf3fd --- /dev/null +++ b/include/hw/acpi/memory_hotplug.h @@ -0,0 +1,57 @@ +#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 "hw/acpi/aml-build.h" + +#define MEMORY_SLOT_SCAN_METHOD "MSCN" +#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" +#define MEMORY_HOTPLUG_IO_LEN 24 + +/** + * 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, hwaddr io_base); + +void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, + DeviceState *dev, Error **errp); +void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev, + 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); + +void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, + const char *res_root, + const char *event_handler_method, + AmlRegionSpace rs, hwaddr memhp_io_base); +#endif |