/* * PC DIMM device * * Copyright ProfitBricks GmbH 2012 * Copyright (C) 2013-2014 Red Hat Inc * * Authors: * Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com> * Igor Mammedov <imammedo@redhat.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. * */ #ifndef QEMU_PC_DIMM_H #define QEMU_PC_DIMM_H #include "exec/memory.h" #include "hw/qdev-core.h" #include "qom/object.h" #define TYPE_PC_DIMM "pc-dimm" OBJECT_DECLARE_TYPE(PCDIMMDevice, PCDIMMDeviceClass, PC_DIMM) #define PC_DIMM_ADDR_PROP "addr" #define PC_DIMM_SLOT_PROP "slot" #define PC_DIMM_NODE_PROP "node" #define PC_DIMM_SIZE_PROP "size" #define PC_DIMM_MEMDEV_PROP "memdev" #define PC_DIMM_UNASSIGNED_SLOT -1 /** * PCDIMMDevice: * @addr: starting guest physical address, where @PCDIMMDevice is mapped. * Default value: 0, means that address is auto-allocated. * @node: numa node to which @PCDIMMDevice is attached. * @slot: slot number into which @PCDIMMDevice is plugged in. * Default value: -1, means that slot is auto-allocated. * @hostmem: host memory backend providing memory for @PCDIMMDevice */ struct PCDIMMDevice { /* private */ DeviceState parent_obj; /* public */ uint64_t addr; uint32_t node; int32_t slot; HostMemoryBackend *hostmem; }; /** * PCDIMMDeviceClass: * @realize: called after common dimm is realized so that the dimm based * devices get the chance to do specified operations. * @get_vmstate_memory_region: returns #MemoryRegion which indicates the * memory of @dimm should be kept during live migration. Will not fail * after the device was realized. */ struct PCDIMMDeviceClass { /* private */ DeviceClass parent_class; /* public */ void (*realize)(PCDIMMDevice *dimm, Error **errp); MemoryRegion *(*get_vmstate_memory_region)(PCDIMMDevice *dimm, Error **errp); }; void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine, const uint64_t *legacy_align, Error **errp); void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine); void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine); #endif