| 1 | /* |
| 2 | * PC DIMM device |
| 3 | * |
| 4 | * Copyright ProfitBricks GmbH 2012 |
| 5 | * Copyright (C) 2013-2014 Red Hat Inc |
| 6 | * |
| 7 | * Authors: |
| 8 | * Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com> |
| 9 | * Igor Mammedov <imammedo@redhat.com> |
| 10 | * |
| 11 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 12 | * See the COPYING file in the top-level directory. |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | #ifndef QEMU_PC_DIMM_H |
| 17 | #define QEMU_PC_DIMM_H |
| 18 | |
| 19 | #include "system/memory.h" |
| 20 | #include "hw/core/qdev.h" |
| 21 | #include "qom/object.h" |
| 22 | |
| 23 | #define TYPE_PC_DIMM "pc-dimm" |
| 24 | OBJECT_DECLARE_TYPE(PCDIMMDevice, PCDIMMDeviceClass, |
| 25 | PC_DIMM) |
| 26 | |
| 27 | #define PC_DIMM_ADDR_PROP "addr" |
| 28 | #define PC_DIMM_SLOT_PROP "slot" |
| 29 | #define PC_DIMM_NODE_PROP "node" |
| 30 | #define PC_DIMM_SIZE_PROP "size" |
| 31 | #define PC_DIMM_MEMDEV_PROP "memdev" |
| 32 | |
| 33 | #define PC_DIMM_UNASSIGNED_SLOT -1 |
| 34 | |
| 35 | /** |
| 36 | * PCDIMMDevice: |
| 37 | * @addr: starting guest physical address, where @PCDIMMDevice is mapped. |
| 38 | * Default value: 0, means that address is auto-allocated. |
| 39 | * @node: numa node to which @PCDIMMDevice is attached. |
| 40 | * @slot: slot number into which @PCDIMMDevice is plugged in. |
| 41 | * Default value: -1, means that slot is auto-allocated. |
| 42 | * @hostmem: host memory backend providing memory for @PCDIMMDevice |
| 43 | */ |
| 44 | struct PCDIMMDevice { |
| 45 | /* private */ |
| 46 | DeviceState parent_obj; |
| 47 | |
| 48 | /* public */ |
| 49 | uint64_t addr; |
| 50 | uint32_t node; |
| 51 | int32_t slot; |
| 52 | HostMemoryBackend *hostmem; |
| 53 | }; |
| 54 | |
| 55 | /** |
| 56 | * PCDIMMDeviceClass: |
| 57 | * @realize: called after common dimm is realized so that the dimm based |
| 58 | * devices get the chance to do specified operations. |
| 59 | */ |
| 60 | struct PCDIMMDeviceClass { |
| 61 | /* private */ |
| 62 | DeviceClass parent_class; |
| 63 | |
| 64 | /* public */ |
| 65 | void (*realize)(PCDIMMDevice *dimm, Error **errp); |
| 66 | void (*unrealize)(PCDIMMDevice *dimm); |
| 67 | }; |
| 68 | |
| 69 | void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp); |
| 70 | void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine); |
| 71 | void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine); |
| 72 | #endif |