qemu

FORK: QEMU emulator
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pc-dimm.h (2011B)

      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"
     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,
     70                       const uint64_t *legacy_align, Error **errp);
     71 void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine);
     72 void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine);
     73 #endif