LXR qemu/include/hw/mem/pc-dimm.h

   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 "exec/memory.h"
  20#include "hw/qdev-core.h"
  21#include "qom/object.h"
  22
  23#define TYPE_PC_DIMM "pc-dimm"
  24OBJECT_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 */
  44struct 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 */
  60struct PCDIMMDeviceClass {
  61    /* private */
  62    DeviceClass parent_class;
  63
  64    /* public */
  65    void (*realize)(PCDIMMDevice *dimm, Error **errp);
  66};
  67
  68void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
  69                      const uint64_t *legacy_align, Error **errp);
  70void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine);
  71void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine);
  72#endif
  73