110b7e74bSVasilis Liaskovitis /* 210b7e74bSVasilis Liaskovitis * PC DIMM device 310b7e74bSVasilis Liaskovitis * 410b7e74bSVasilis Liaskovitis * Copyright ProfitBricks GmbH 2012 510b7e74bSVasilis Liaskovitis * Copyright (C) 2013-2014 Red Hat Inc 610b7e74bSVasilis Liaskovitis * 710b7e74bSVasilis Liaskovitis * Authors: 810b7e74bSVasilis Liaskovitis * Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com> 910b7e74bSVasilis Liaskovitis * Igor Mammedov <imammedo@redhat.com> 1010b7e74bSVasilis Liaskovitis * 1110b7e74bSVasilis Liaskovitis * This work is licensed under the terms of the GNU GPL, version 2 or later. 1210b7e74bSVasilis Liaskovitis * See the COPYING file in the top-level directory. 1310b7e74bSVasilis Liaskovitis * 1410b7e74bSVasilis Liaskovitis */ 1510b7e74bSVasilis Liaskovitis 1610b7e74bSVasilis Liaskovitis #ifndef QEMU_PC_DIMM_H 1710b7e74bSVasilis Liaskovitis #define QEMU_PC_DIMM_H 1810b7e74bSVasilis Liaskovitis 1910b7e74bSVasilis Liaskovitis #include "exec/memory.h" 2010b7e74bSVasilis Liaskovitis #include "sysemu/hostmem.h" 21*a27bd6c7SMarkus Armbruster #include "hw/qdev-core.h" 22b0c14ec4SDavid Hildenbrand #include "hw/boards.h" 2310b7e74bSVasilis Liaskovitis 2410b7e74bSVasilis Liaskovitis #define TYPE_PC_DIMM "pc-dimm" 2510b7e74bSVasilis Liaskovitis #define PC_DIMM(obj) \ 2610b7e74bSVasilis Liaskovitis OBJECT_CHECK(PCDIMMDevice, (obj), TYPE_PC_DIMM) 2710b7e74bSVasilis Liaskovitis #define PC_DIMM_CLASS(oc) \ 2810b7e74bSVasilis Liaskovitis OBJECT_CLASS_CHECK(PCDIMMDeviceClass, (oc), TYPE_PC_DIMM) 2910b7e74bSVasilis Liaskovitis #define PC_DIMM_GET_CLASS(obj) \ 3010b7e74bSVasilis Liaskovitis OBJECT_GET_CLASS(PCDIMMDeviceClass, (obj), TYPE_PC_DIMM) 3110b7e74bSVasilis Liaskovitis 3210b7e74bSVasilis Liaskovitis #define PC_DIMM_ADDR_PROP "addr" 3310b7e74bSVasilis Liaskovitis #define PC_DIMM_SLOT_PROP "slot" 3410b7e74bSVasilis Liaskovitis #define PC_DIMM_NODE_PROP "node" 3510b7e74bSVasilis Liaskovitis #define PC_DIMM_SIZE_PROP "size" 3610b7e74bSVasilis Liaskovitis #define PC_DIMM_MEMDEV_PROP "memdev" 3710b7e74bSVasilis Liaskovitis 3810b7e74bSVasilis Liaskovitis #define PC_DIMM_UNASSIGNED_SLOT -1 3910b7e74bSVasilis Liaskovitis 4010b7e74bSVasilis Liaskovitis /** 4110b7e74bSVasilis Liaskovitis * PCDIMMDevice: 4210b7e74bSVasilis Liaskovitis * @addr: starting guest physical address, where @PCDIMMDevice is mapped. 4310b7e74bSVasilis Liaskovitis * Default value: 0, means that address is auto-allocated. 4410b7e74bSVasilis Liaskovitis * @node: numa node to which @PCDIMMDevice is attached. 4510b7e74bSVasilis Liaskovitis * @slot: slot number into which @PCDIMMDevice is plugged in. 4610b7e74bSVasilis Liaskovitis * Default value: -1, means that slot is auto-allocated. 4710b7e74bSVasilis Liaskovitis * @hostmem: host memory backend providing memory for @PCDIMMDevice 4810b7e74bSVasilis Liaskovitis */ 4910b7e74bSVasilis Liaskovitis typedef struct PCDIMMDevice { 5010b7e74bSVasilis Liaskovitis /* private */ 5110b7e74bSVasilis Liaskovitis DeviceState parent_obj; 5210b7e74bSVasilis Liaskovitis 5310b7e74bSVasilis Liaskovitis /* public */ 5410b7e74bSVasilis Liaskovitis uint64_t addr; 5510b7e74bSVasilis Liaskovitis uint32_t node; 5610b7e74bSVasilis Liaskovitis int32_t slot; 5710b7e74bSVasilis Liaskovitis HostMemoryBackend *hostmem; 5810b7e74bSVasilis Liaskovitis } PCDIMMDevice; 5910b7e74bSVasilis Liaskovitis 6010b7e74bSVasilis Liaskovitis /** 6110b7e74bSVasilis Liaskovitis * PCDIMMDeviceClass: 629f318f8fSXiao Guangrong * @realize: called after common dimm is realized so that the dimm based 639f318f8fSXiao Guangrong * devices get the chance to do specified operations. 648df1426eSXiao Guangrong * @get_vmstate_memory_region: returns #MemoryRegion which indicates the 65f0b7bca6SDavid Hildenbrand * memory of @dimm should be kept during live migration. Will not fail 66f0b7bca6SDavid Hildenbrand * after the device was realized. 6710b7e74bSVasilis Liaskovitis */ 6810b7e74bSVasilis Liaskovitis typedef struct PCDIMMDeviceClass { 6910b7e74bSVasilis Liaskovitis /* private */ 7010b7e74bSVasilis Liaskovitis DeviceClass parent_class; 7110b7e74bSVasilis Liaskovitis 7210b7e74bSVasilis Liaskovitis /* public */ 739f318f8fSXiao Guangrong void (*realize)(PCDIMMDevice *dimm, Error **errp); 74a57d1911SDavid Hildenbrand MemoryRegion *(*get_vmstate_memory_region)(PCDIMMDevice *dimm, 75a57d1911SDavid Hildenbrand Error **errp); 7610b7e74bSVasilis Liaskovitis } PCDIMMDeviceClass; 7710b7e74bSVasilis Liaskovitis 78fd3416f5SDavid Hildenbrand void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine, 79b0e62443SDavid Hildenbrand const uint64_t *legacy_align, Error **errp); 80fd3416f5SDavid Hildenbrand void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp); 81fd3416f5SDavid Hildenbrand void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine); 8210b7e74bSVasilis Liaskovitis #endif 83