static void iothread_complete(UserCreatable *obj, Error **errp)
{
Error *local_error = NULL;
IOThread *iothread = IOTHREAD(obj);
char *name, *thread_name;
iothread->stopping = false;
iothread->thread_id = -1;
iothread->ctx = aio_context_new(&local_error);
if (!iothread->ctx) {
error_propagate(errp, local_error);
return;
}
qemu_mutex_init(&iothread->init_done_lock);
qemu_cond_init(&iothread->init_done_cond);
/* This assumes we are called from a thread with useful CPU affinity for us
* to inherit.
*/
name = object_get_canonical_path_component(OBJECT(obj));
thread_name = g_strdup_printf("IO %s", name);
qemu_thread_create(&iothread->thread, thread_name, iothread_run,
iothread, QEMU_THREAD_JOINABLE);
g_free(thread_name);
g_free(name);
/* Wait for initialization to complete */
qemu_mutex_lock(&iothread->init_done_lock);
while (iothread->thread_id == -1) {
qemu_cond_wait(&iothread->init_done_cond,
&iothread->init_done_lock);
}
qemu_mutex_unlock(&iothread->init_done_lock);
}
static void pc_dimm_realize(DeviceState *dev, Error **errp)
{
PCDIMMDevice *dimm = PC_DIMM(dev);
PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
if (!dimm->hostmem) {
error_setg(errp, "'" PC_DIMM_MEMDEV_PROP "' property is not set");
return;
} else if (host_memory_backend_is_mapped(dimm->hostmem)) {
char *path = object_get_canonical_path_component(OBJECT(dimm->hostmem));
error_setg(errp, "can't use already busy memdev: %s", path);
g_free(path);
return;
}
if (((nb_numa_nodes > 0) && (dimm->node >= nb_numa_nodes)) ||
(!nb_numa_nodes && dimm->node)) {
error_setg(errp, "'DIMM property " PC_DIMM_NODE_PROP " has value %"
PRIu32 "' which exceeds the number of numa nodes: %d",
dimm->node, nb_numa_nodes ? nb_numa_nodes : 1);
return;
}
if (ddc->realize) {
ddc->realize(dimm, errp);
}
host_memory_backend_set_mapped(dimm->hostmem, true);
}
static void nvdimm_realize(PCDIMMDevice *dimm, 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);
align = memory_region_get_alignment(mr);
pmem_size = size - nvdimm->label_size;
nvdimm->label_data = memory_region_get_ram_ptr(mr) + pmem_size;
pmem_size = QEMU_ALIGN_DOWN(pmem_size, align);
if (size <= nvdimm->label_size || !pmem_size) {
HostMemoryBackend *hostmem = dimm->hostmem;
char *path = object_get_canonical_path_component(OBJECT(hostmem));
error_setg(errp, "the size of memdev %s (0x%" PRIx64 ") is too "
"small to contain nvdimm label (0x%" PRIx64 ") and "
"aligned PMEM (0x%" PRIx64 ")",
path, memory_region_size(mr), nvdimm->label_size, align);
g_free(path);
return;
}
memory_region_init_alias(&nvdimm->nvdimm_mr, OBJECT(dimm),
"nvdimm-memory", mr, 0, pmem_size);
nvdimm->nvdimm_mr.align = align;
}
static void realize(DeviceState *d, Error **errp)
{
sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d);
sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
Object *root_container;
char link_name[256];
gchar *child_name;
Error *err = NULL;
DPRINTFN("drc realize: %x", drck->get_index(drc));
/* NOTE: we do this as part of realize/unrealize due to the fact
* that the guest will communicate with the DRC via RTAS calls
* referencing the global DRC index. By unlinking the DRC
* from DRC_CONTAINER_PATH/<drc_index> we effectively make it
* inaccessible by the guest, since lookups rely on this path
* existing in the composition tree
*/
root_container = container_get(object_get_root(), DRC_CONTAINER_PATH);
snprintf(link_name, sizeof(link_name), "%x", drck->get_index(drc));
child_name = object_get_canonical_path_component(OBJECT(drc));
DPRINTFN("drc child name: %s", child_name);
object_property_add_alias(root_container, link_name,
drc->owner, child_name, &err);
if (err) {
error_report("%s", error_get_pretty(err));
error_free(err);
object_unref(OBJECT(drc));
}
g_free(child_name);
DPRINTFN("drc realize complete");
}
static void ivshmem_check_memdev_is_busy(Object *obj, const char *name,
Object *val, Error **errp)
{
if (host_memory_backend_is_mapped(MEMORY_BACKEND(val))) {
char *path = object_get_canonical_path_component(val);
error_setg(errp, "can't use already busy memdev: %s", path);
g_free(path);
} else {
qdev_prop_allow_set_link_before_realize(obj, name, val, errp);
}
}
static void
ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
{
char *path;
if (!backend->size) {
error_setg(errp, "can't create backend with size 0");
return;
}
path = object_get_canonical_path_component(OBJECT(backend));
memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), path,
backend->size, backend->share, errp);
g_free(path);
}
static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(dev);
int i;
vcrypto->cryptodev = vcrypto->conf.cryptodev;
if (vcrypto->cryptodev == NULL) {
error_setg(errp, "'cryptodev' parameter expects a valid object");
return;
} else if (cryptodev_backend_is_used(vcrypto->cryptodev)) {
char *path = object_get_canonical_path_component(OBJECT(vcrypto->conf.cryptodev));
error_setg(errp, "can't use already used cryptodev backend: %s", path);
g_free(path);
return;
}
vcrypto->max_queues = MAX(vcrypto->cryptodev->conf.peers.queues, 1);
if (vcrypto->max_queues + 1 > VIRTIO_QUEUE_MAX) {
error_setg(errp, "Invalid number of queues (= %" PRIu32 "), "
"must be a positive integer less than %d.",
vcrypto->max_queues, VIRTIO_QUEUE_MAX);
return;
}
virtio_init(vdev, "virtio-crypto", VIRTIO_ID_CRYPTO, vcrypto->config_size);
vcrypto->curr_queues = 1;
vcrypto->vqs = g_malloc0(sizeof(VirtIOCryptoQueue) * vcrypto->max_queues);
for (i = 0; i < vcrypto->max_queues; i++) {
vcrypto->vqs[i].dataq =
virtio_add_queue(vdev, 1024, virtio_crypto_handle_dataq_bh);
vcrypto->vqs[i].dataq_bh =
qemu_bh_new(virtio_crypto_dataq_bh, &vcrypto->vqs[i]);
vcrypto->vqs[i].vcrypto = vcrypto;
}
vcrypto->ctrl_vq = virtio_add_queue(vdev, 64, virtio_crypto_handle_ctrl);
if (!cryptodev_backend_is_ready(vcrypto->cryptodev)) {
vcrypto->status &= ~VIRTIO_CRYPTO_S_HW_READY;
} else {
vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY;
}
virtio_crypto_init_config(vdev);
cryptodev_backend_set_used(vcrypto->cryptodev, true);
}
static void pc_dimm_check_memdev_is_busy(Object *obj, const char *name,
Object *val, Error **errp)
{
MemoryRegion *mr;
Error *local_err = NULL;
mr = host_memory_backend_get_memory(MEMORY_BACKEND(val), &local_err);
if (local_err) {
goto out;
}
if (memory_region_is_mapped(mr)) {
char *path = object_get_canonical_path_component(val);
error_setg(&local_err, "can't use already busy memdev: %s", path);
g_free(path);
} else {
qdev_prop_allow_set_link_before_realize(obj, name, val, &local_err);
}
out:
error_propagate(errp, local_err);
}
void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
const char *name,
uint64_t ram_size)
{
uint64_t addr = 0;
int i;
if (nb_numa_nodes == 0 || !have_memdevs) {
allocate_system_memory_nonnuma(mr, owner, name, ram_size);
return;
}
memory_region_init(mr, owner, name, ram_size);
for (i = 0; i < MAX_NODES; i++) {
Error *local_err = NULL;
uint64_t size = numa_info[i].node_mem;
HostMemoryBackend *backend = numa_info[i].node_memdev;
if (!backend) {
continue;
}
MemoryRegion *seg = host_memory_backend_get_memory(backend, &local_err);
if (local_err) {
error_report_err(local_err);
exit(1);
}
if (memory_region_is_mapped(seg)) {
char *path = object_get_canonical_path_component(OBJECT(backend));
error_report("memory backend %s is used multiple times. Each "
"-numa option must use a different memdev value.",
path);
exit(1);
}
memory_region_add_subregion(mr, addr, seg);
vmstate_register_ram_global(seg);
addr += size;
}
}
static int query_one_pr_manager(Object *object, void *opaque)
{
PRManagerInfoList ***prev = opaque;
PRManagerInfoList *elem;
PRManagerInfo *info;
PRManager *pr_mgr;
pr_mgr = (PRManager *)object_dynamic_cast(object, TYPE_PR_MANAGER);
if (!pr_mgr) {
return 0;
}
elem = g_new0(PRManagerInfoList, 1);
info = g_new0(PRManagerInfo, 1);
info->id = object_get_canonical_path_component(object);
info->connected = pr_manager_is_connected(pr_mgr);
elem->value = info;
elem->next = NULL;
**prev = elem;
*prev = &elem->next;
return 0;
}
char *iothread_get_id(IOThread *iothread)
{
return object_get_canonical_path_component(OBJECT(iothread));
}
