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-rw-r--r--hw/mem/Makefile.objs1
-rw-r--r--hw/mem/memory-device.c120
-rw-r--r--hw/mem/pc-dimm.c120
3 files changed, 185 insertions, 56 deletions
diff --git a/hw/mem/Makefile.objs b/hw/mem/Makefile.objs
index f12f8b97a2..10be4df2a2 100644
--- a/hw/mem/Makefile.objs
+++ b/hw/mem/Makefile.objs
@@ -1,2 +1,3 @@
common-obj-$(CONFIG_MEM_HOTPLUG) += pc-dimm.o
+common-obj-$(CONFIG_MEM_HOTPLUG) += memory-device.o
common-obj-$(CONFIG_NVDIMM) += nvdimm.o
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
new file mode 100644
index 0000000000..6cbdaf99f3
--- /dev/null
+++ b/hw/mem/memory-device.c
@@ -0,0 +1,120 @@
+/*
+ * Memory Device Interface
+ *
+ * Copyright ProfitBricks GmbH 2012
+ * Copyright (C) 2014 Red Hat Inc
+ * Copyright (c) 2018 Red Hat Inc
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/mem/memory-device.h"
+#include "hw/qdev.h"
+#include "qapi/error.h"
+#include "hw/boards.h"
+#include "qemu/range.h"
+
+static gint memory_device_addr_sort(gconstpointer a, gconstpointer b)
+{
+ const MemoryDeviceState *md_a = MEMORY_DEVICE(a);
+ const MemoryDeviceState *md_b = MEMORY_DEVICE(b);
+ const MemoryDeviceClass *mdc_a = MEMORY_DEVICE_GET_CLASS(a);
+ const MemoryDeviceClass *mdc_b = MEMORY_DEVICE_GET_CLASS(b);
+ const uint64_t addr_a = mdc_a->get_addr(md_a);
+ const uint64_t addr_b = mdc_b->get_addr(md_b);
+
+ if (addr_a > addr_b) {
+ return 1;
+ } else if (addr_a < addr_b) {
+ return -1;
+ }
+ return 0;
+}
+
+static int memory_device_build_list(Object *obj, void *opaque)
+{
+ GSList **list = opaque;
+
+ if (object_dynamic_cast(obj, TYPE_MEMORY_DEVICE)) {
+ DeviceState *dev = DEVICE(obj);
+ if (dev->realized) { /* only realized memory devices matter */
+ *list = g_slist_insert_sorted(*list, dev, memory_device_addr_sort);
+ }
+ }
+
+ object_child_foreach(obj, memory_device_build_list, opaque);
+ return 0;
+}
+
+MemoryDeviceInfoList *qmp_memory_device_list(void)
+{
+ GSList *devices = NULL, *item;
+ MemoryDeviceInfoList *list = NULL, *prev = NULL;
+
+ object_child_foreach(qdev_get_machine(), memory_device_build_list,
+ &devices);
+
+ for (item = devices; item; item = g_slist_next(item)) {
+ const MemoryDeviceState *md = MEMORY_DEVICE(item->data);
+ const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(item->data);
+ MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
+ MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
+
+ mdc->fill_device_info(md, info);
+
+ elem->value = info;
+ elem->next = NULL;
+ if (prev) {
+ prev->next = elem;
+ } else {
+ list = elem;
+ }
+ prev = elem;
+ }
+
+ g_slist_free(devices);
+
+ return list;
+}
+
+static int memory_device_plugged_size(Object *obj, void *opaque)
+{
+ uint64_t *size = opaque;
+
+ if (object_dynamic_cast(obj, TYPE_MEMORY_DEVICE)) {
+ const DeviceState *dev = DEVICE(obj);
+ const MemoryDeviceState *md = MEMORY_DEVICE(obj);
+ const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(obj);
+
+ if (dev->realized) {
+ *size += mdc->get_plugged_size(md);
+ }
+ }
+
+ object_child_foreach(obj, memory_device_plugged_size, opaque);
+ return 0;
+}
+
+uint64_t get_plugged_memory_size(void)
+{
+ uint64_t size = 0;
+
+ memory_device_plugged_size(qdev_get_machine(), &size);
+
+ return size;
+}
+
+static const TypeInfo memory_device_info = {
+ .name = TYPE_MEMORY_DEVICE,
+ .parent = TYPE_INTERFACE,
+ .class_size = sizeof(MemoryDeviceClass),
+};
+
+static void memory_device_register_types(void)
+{
+ type_register_static(&memory_device_info);
+}
+
+type_init(memory_device_register_types)
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 51350d9c2d..ef330628c1 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "hw/mem/pc-dimm.h"
#include "hw/mem/nvdimm.h"
+#include "hw/mem/memory-device.h"
#include "qapi/error.h"
#include "qemu/config-file.h"
#include "qapi/visitor.h"
@@ -158,11 +159,6 @@ uint64_t pc_existing_dimms_capacity(Error **errp)
return cap.size;
}
-uint64_t get_plugged_memory_size(void)
-{
- return pc_existing_dimms_capacity(&error_abort);
-}
-
static int pc_dimm_slot2bitmap(Object *obj, void *opaque)
{
unsigned long *bitmap = opaque;
@@ -238,57 +234,6 @@ static int pc_dimm_built_list(Object *obj, void *opaque)
return 0;
}
-MemoryDeviceInfoList *qmp_pc_dimm_device_list(void)
-{
- GSList *dimms = NULL, *item;
- MemoryDeviceInfoList *list = NULL, *prev = NULL;
-
- object_child_foreach(qdev_get_machine(), pc_dimm_built_list, &dimms);
-
- for (item = dimms; item; item = g_slist_next(item)) {
- PCDIMMDevice *dimm = PC_DIMM(item->data);
- Object *obj = OBJECT(dimm);
- MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
- MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
- PCDIMMDeviceInfo *di = g_new0(PCDIMMDeviceInfo, 1);
- bool is_nvdimm = object_dynamic_cast(obj, TYPE_NVDIMM);
- DeviceClass *dc = DEVICE_GET_CLASS(obj);
- DeviceState *dev = DEVICE(obj);
-
- if (dev->id) {
- di->has_id = true;
- di->id = g_strdup(dev->id);
- }
- di->hotplugged = dev->hotplugged;
- di->hotpluggable = dc->hotpluggable;
- di->addr = dimm->addr;
- di->slot = dimm->slot;
- di->node = dimm->node;
- di->size = object_property_get_uint(obj, PC_DIMM_SIZE_PROP, NULL);
- di->memdev = object_get_canonical_path(OBJECT(dimm->hostmem));
-
- if (!is_nvdimm) {
- info->u.dimm.data = di;
- info->type = MEMORY_DEVICE_INFO_KIND_DIMM;
- } else {
- info->u.nvdimm.data = di;
- info->type = MEMORY_DEVICE_INFO_KIND_NVDIMM;
- }
- elem->value = info;
- elem->next = NULL;
- if (prev) {
- prev->next = elem;
- } else {
- list = elem;
- }
- prev = elem;
- }
-
- g_slist_free(dimms);
-
- return list;
-}
-
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,
@@ -445,10 +390,63 @@ static MemoryRegion *pc_dimm_get_vmstate_memory_region(PCDIMMDevice *dimm)
return host_memory_backend_get_memory(dimm->hostmem, &error_abort);
}
+static uint64_t pc_dimm_md_get_addr(const MemoryDeviceState *md)
+{
+ const PCDIMMDevice *dimm = PC_DIMM(md);
+
+ return dimm->addr;
+}
+
+static uint64_t pc_dimm_md_get_region_size(const MemoryDeviceState *md)
+{
+ /* dropping const here is fine as we don't touch the memory region */
+ PCDIMMDevice *dimm = PC_DIMM(md);
+ const PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(md);
+ MemoryRegion *mr;
+
+ mr = ddc->get_memory_region(dimm, &error_abort);
+ if (!mr) {
+ return 0;
+ }
+
+ return memory_region_size(mr);
+}
+
+static void pc_dimm_md_fill_device_info(const MemoryDeviceState *md,
+ MemoryDeviceInfo *info)
+{
+ PCDIMMDeviceInfo *di = g_new0(PCDIMMDeviceInfo, 1);
+ const DeviceClass *dc = DEVICE_GET_CLASS(md);
+ const PCDIMMDevice *dimm = PC_DIMM(md);
+ const DeviceState *dev = DEVICE(md);
+
+ if (dev->id) {
+ di->has_id = true;
+ di->id = g_strdup(dev->id);
+ }
+ di->hotplugged = dev->hotplugged;
+ di->hotpluggable = dc->hotpluggable;
+ di->addr = dimm->addr;
+ di->slot = dimm->slot;
+ di->node = dimm->node;
+ di->size = object_property_get_uint(OBJECT(dimm), PC_DIMM_SIZE_PROP,
+ NULL);
+ di->memdev = object_get_canonical_path(OBJECT(dimm->hostmem));
+
+ if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
+ info->u.nvdimm.data = di;
+ info->type = MEMORY_DEVICE_INFO_KIND_NVDIMM;
+ } else {
+ info->u.dimm.data = di;
+ info->type = MEMORY_DEVICE_INFO_KIND_DIMM;
+ }
+}
+
static void pc_dimm_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
PCDIMMDeviceClass *ddc = PC_DIMM_CLASS(oc);
+ MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(oc);
dc->realize = pc_dimm_realize;
dc->unrealize = pc_dimm_unrealize;
@@ -457,6 +455,12 @@ static void pc_dimm_class_init(ObjectClass *oc, void *data)
ddc->get_memory_region = pc_dimm_get_memory_region;
ddc->get_vmstate_memory_region = pc_dimm_get_vmstate_memory_region;
+
+ mdc->get_addr = pc_dimm_md_get_addr;
+ /* for a dimm plugged_size == region_size */
+ mdc->get_plugged_size = pc_dimm_md_get_region_size;
+ mdc->get_region_size = pc_dimm_md_get_region_size;
+ mdc->fill_device_info = pc_dimm_md_fill_device_info;
}
static TypeInfo pc_dimm_info = {
@@ -466,6 +470,10 @@ static TypeInfo pc_dimm_info = {
.instance_init = pc_dimm_init,
.class_init = pc_dimm_class_init,
.class_size = sizeof(PCDIMMDeviceClass),
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_MEMORY_DEVICE },
+ { }
+ },
};
static void pc_dimm_register_types(void)
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-19 00:48:55 +0000