*/
#include "qemu/osdep.h"
+#include "qemu/module.h"
+#include "qemu/pmem.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "hw/mem/nvdimm.h"
+#include "hw/qdev-properties.h"
+#include "hw/mem/memory-device.h"
+#include "sysemu/hostmem.h"
static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
void *opaque, Error **errp)
{
NVDIMMDevice *nvdimm = NVDIMM(obj);
- Error *local_err = NULL;
uint64_t value;
- if (memory_region_size(&nvdimm->nvdimm_mr)) {
- error_setg(&local_err, "cannot change property value");
- goto out;
+ if (nvdimm->nvdimm_mr) {
+ error_setg(errp, "cannot change property value");
+ return;
}
- visit_type_size(v, name, &value, &local_err);
- if (local_err) {
- goto out;
+ if (!visit_type_size(v, name, &value, errp)) {
+ return;
}
if (value < MIN_NAMESPACE_LABEL_SIZE) {
- error_setg(&local_err, "Property '%s.%s' (0x%" PRIx64 ") is required"
- " at least 0x%lx", object_get_typename(obj),
- name, value, MIN_NAMESPACE_LABEL_SIZE);
- goto out;
+ error_setg(errp, "Property '%s.%s' (0x%" PRIx64 ") is required"
+ " at least 0x%lx", object_get_typename(obj), name, value,
+ MIN_NAMESPACE_LABEL_SIZE);
+ return;
}
nvdimm->label_size = value;
-out:
- error_propagate(errp, local_err);
}
+static void nvdimm_get_uuid(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ NVDIMMDevice *nvdimm = NVDIMM(obj);
+ char *value = NULL;
+
+ value = qemu_uuid_unparse_strdup(&nvdimm->uuid);
+
+ visit_type_str(v, name, &value, errp);
+ g_free(value);
+}
+
+
+static void nvdimm_set_uuid(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ NVDIMMDevice *nvdimm = NVDIMM(obj);
+ char *value;
+
+ if (!visit_type_str(v, name, &value, errp)) {
+ return;
+ }
+
+ if (qemu_uuid_parse(value, &nvdimm->uuid) != 0) {
+ error_setg(errp, "Property '%s.%s' has invalid value",
+ object_get_typename(obj), name);
+ }
+
+ g_free(value);
+}
+
+
static void nvdimm_init(Object *obj)
{
- object_property_add(obj, "label-size", "int",
+ object_property_add(obj, NVDIMM_LABEL_SIZE_PROP, "int",
nvdimm_get_label_size, nvdimm_set_label_size, NULL,
- NULL, NULL);
+ NULL);
+
+ object_property_add(obj, NVDIMM_UUID_PROP, "QemuUUID", nvdimm_get_uuid,
+ nvdimm_set_uuid, NULL, NULL);
}
-static MemoryRegion *nvdimm_get_memory_region(PCDIMMDevice *dimm)
+static void nvdimm_finalize(Object *obj)
{
- NVDIMMDevice *nvdimm = NVDIMM(dimm);
+ NVDIMMDevice *nvdimm = NVDIMM(obj);
- return &nvdimm->nvdimm_mr;
+ g_free(nvdimm->nvdimm_mr);
}
-static void nvdimm_realize(PCDIMMDevice *dimm, Error **errp)
+static void nvdimm_prepare_memory_region(NVDIMMDevice *nvdimm, Error **errp)
{
- MemoryRegion *mr = host_memory_backend_get_memory(dimm->hostmem, errp);
- NVDIMMDevice *nvdimm = NVDIMM(dimm);
- uint64_t align, pmem_size, size = memory_region_size(mr);
+ PCDIMMDevice *dimm = PC_DIMM(nvdimm);
+ uint64_t align, pmem_size, size;
+ MemoryRegion *mr;
+
+ g_assert(!nvdimm->nvdimm_mr);
+ if (!dimm->hostmem) {
+ error_setg(errp, "'" PC_DIMM_MEMDEV_PROP "' property must be set");
+ return;
+ }
+
+ mr = host_memory_backend_get_memory(dimm->hostmem);
align = memory_region_get_alignment(mr);
+ size = memory_region_size(mr);
pmem_size = size - nvdimm->label_size;
nvdimm->label_data = memory_region_get_ram_ptr(mr) + pmem_size;
return;
}
- memory_region_init_alias(&nvdimm->nvdimm_mr, OBJECT(dimm),
+ nvdimm->nvdimm_mr = g_new(MemoryRegion, 1);
+ memory_region_init_alias(nvdimm->nvdimm_mr, OBJECT(dimm),
"nvdimm-memory", mr, 0, pmem_size);
- nvdimm->nvdimm_mr.align = align;
+ memory_region_set_nonvolatile(nvdimm->nvdimm_mr, true);
+ nvdimm->nvdimm_mr->align = align;
+}
+
+static MemoryRegion *nvdimm_md_get_memory_region(MemoryDeviceState *md,
+ Error **errp)
+{
+ NVDIMMDevice *nvdimm = NVDIMM(md);
+ Error *local_err = NULL;
+
+ if (!nvdimm->nvdimm_mr) {
+ nvdimm_prepare_memory_region(nvdimm, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return NULL;
+ }
+ }
+ return nvdimm->nvdimm_mr;
+}
+
+static void nvdimm_realize(PCDIMMDevice *dimm, Error **errp)
+{
+ NVDIMMDevice *nvdimm = NVDIMM(dimm);
+
+ if (!nvdimm->nvdimm_mr) {
+ nvdimm_prepare_memory_region(nvdimm, errp);
+ }
}
/*
{
MemoryRegion *mr;
PCDIMMDevice *dimm = PC_DIMM(nvdimm);
+ bool is_pmem = object_property_get_bool(OBJECT(dimm->hostmem),
+ "pmem", NULL);
uint64_t backend_offset;
nvdimm_validate_rw_label_data(nvdimm, size, offset);
- memcpy(nvdimm->label_data + offset, buf, size);
+ if (!is_pmem) {
+ memcpy(nvdimm->label_data + offset, buf, size);
+ } else {
+ pmem_memcpy_persist(nvdimm->label_data + offset, buf, size);
+ }
- mr = host_memory_backend_get_memory(dimm->hostmem, &error_abort);
+ mr = host_memory_backend_get_memory(dimm->hostmem);
backend_offset = memory_region_size(mr) - nvdimm->label_size + offset;
memory_region_set_dirty(mr, backend_offset, size);
}
-static MemoryRegion *nvdimm_get_vmstate_memory_region(PCDIMMDevice *dimm)
-{
- return host_memory_backend_get_memory(dimm->hostmem, &error_abort);
-}
+static Property nvdimm_properties[] = {
+ DEFINE_PROP_BOOL(NVDIMM_UNARMED_PROP, NVDIMMDevice, unarmed, false),
+ DEFINE_PROP_END_OF_LIST(),
+};
static void nvdimm_class_init(ObjectClass *oc, void *data)
{
PCDIMMDeviceClass *ddc = PC_DIMM_CLASS(oc);
+ MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(oc);
NVDIMMClass *nvc = NVDIMM_CLASS(oc);
+ DeviceClass *dc = DEVICE_CLASS(oc);
ddc->realize = nvdimm_realize;
- ddc->get_memory_region = nvdimm_get_memory_region;
- ddc->get_vmstate_memory_region = nvdimm_get_vmstate_memory_region;
+ mdc->get_memory_region = nvdimm_md_get_memory_region;
+ device_class_set_props(dc, nvdimm_properties);
nvc->read_label_data = nvdimm_read_label_data;
nvc->write_label_data = nvdimm_write_label_data;
.class_init = nvdimm_class_init,
.instance_size = sizeof(NVDIMMDevice),
.instance_init = nvdimm_init,
+ .instance_finalize = nvdimm_finalize,
};
static void nvdimm_register_types(void)
projects / mirror_qemu.git / blobdiff