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-rw-r--r--qemu/include/hw/mem/pc-dimm.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/qemu/include/hw/mem/pc-dimm.h b/qemu/include/hw/mem/pc-dimm.h
new file mode 100644
index 000000000..d83bf30ea
--- /dev/null
+++ b/qemu/include/hw/mem/pc-dimm.h
@@ -0,0 +1,97 @@
+/*
+ * 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 "sysemu/hostmem.h"
+#include "hw/qdev.h"
+
+#define DEFAULT_PC_DIMMSIZE (1024*1024*1024)
+
+#define TYPE_PC_DIMM "pc-dimm"
+#define PC_DIMM(obj) \
+ OBJECT_CHECK(PCDIMMDevice, (obj), TYPE_PC_DIMM)
+#define PC_DIMM_CLASS(oc) \
+ OBJECT_CLASS_CHECK(PCDIMMDeviceClass, (oc), TYPE_PC_DIMM)
+#define PC_DIMM_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(PCDIMMDeviceClass, (obj), TYPE_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
+ */
+typedef struct PCDIMMDevice {
+ /* private */
+ DeviceState parent_obj;
+
+ /* public */
+ uint64_t addr;
+ uint32_t node;
+ int32_t slot;
+ HostMemoryBackend *hostmem;
+} PCDIMMDevice;
+
+/**
+ * PCDIMMDeviceClass:
+ * @get_memory_region: returns #MemoryRegion associated with @dimm
+ */
+typedef struct PCDIMMDeviceClass {
+ /* private */
+ DeviceClass parent_class;
+
+ /* public */
+ MemoryRegion *(*get_memory_region)(PCDIMMDevice *dimm);
+} PCDIMMDeviceClass;
+
+/**
+ * MemoryHotplugState:
+ * @base: address in guest RAM address space where hotplug memory
+ * address space begins.
+ * @mr: hotplug memory address space container
+ */
+typedef struct MemoryHotplugState {
+ ram_addr_t base;
+ MemoryRegion mr;
+} MemoryHotplugState;
+
+uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
+ uint64_t address_space_size,
+ uint64_t *hint, uint64_t align, uint64_t size,
+ Error **errp);
+
+int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);
+
+int qmp_pc_dimm_device_list(Object *obj, void *opaque);
+uint64_t pc_existing_dimms_capacity(Error **errp);
+void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms,
+ MemoryRegion *mr, uint64_t align, Error **errp);
+void pc_dimm_memory_unplug(DeviceState *dev, MemoryHotplugState *hpms,
+ MemoryRegion *mr);
+#endif