int vhost_dev_init(struct vhost_dev *hdev, void *opaque,

                   VhostBackendType backend_type)

{

    uint64_t features;

    int i, r;



    if (vhost_set_backend_type(hdev, backend_type) < 0) {






    if (hdev->vhost_ops->vhost_backend_init(hdev, opaque) < 0) {


        return -errno;










    QLIST_INSERT_HEAD(&vhost_devices, hdev, entry);



    r = hdev->vhost_ops->vhost_call(hdev, VHOST_SET_OWNER, NULL);

    if (r < 0) {

        goto fail;




    r = hdev->vhost_ops->vhost_call(hdev, VHOST_GET_FEATURES, &features);

    if (r < 0) {

        goto fail;




    for (i = 0; i < hdev->nvqs; ++i) {

        r = vhost_virtqueue_init(hdev, hdev->vqs + i, hdev->vq_index + i);

        if (r < 0) {

            goto fail_vq;



    hdev->features = features;



    hdev->memory_listener = (MemoryListener) {

        .begin = vhost_begin,

        .commit = vhost_commit,

        .region_add = vhost_region_add,

        .region_del = vhost_region_del,

        .region_nop = vhost_region_nop,

        .log_start = vhost_log_start,

        .log_stop = vhost_log_stop,

        .log_sync = vhost_log_sync,

        .log_global_start = vhost_log_global_start,

        .log_global_stop = vhost_log_global_stop,

        .eventfd_add = vhost_eventfd_add,

        .eventfd_del = vhost_eventfd_del,

        .priority = 10

    };

    hdev->migration_blocker = NULL;

    if (!(hdev->features & (0x1ULL << VHOST_F_LOG_ALL))) {

        error_setg(&hdev->migration_blocker,

                   "Migration disabled: vhost lacks VHOST_F_LOG_ALL feature.");

        migrate_add_blocker(hdev->migration_blocker);


    hdev->mem = g_malloc0(offsetof(struct vhost_memory, regions));

    hdev->n_mem_sections = 0;

    hdev->mem_sections = NULL;

    hdev->log = NULL;

    hdev->log_size = 0;

    hdev->log_enabled = false;

    hdev->started = false;

    hdev->memory_changed = false;

    memory_listener_register(&hdev->memory_listener, &address_space_memory);

    return 0;

fail_vq:

    while (--i >= 0) {

        vhost_virtqueue_cleanup(hdev->vqs + i);


fail:

    r = -errno;

    hdev->vhost_ops->vhost_backend_cleanup(hdev);

    QLIST_REMOVE(hdev, entry);

    return r;

int vhost_dev_init(struct vhost_dev *hdev, void *opaque,

                   VhostBackendType backend_type)

{

    uint64_t features;

    int i, r;



    if (vhost_set_backend_type(hdev, backend_type) < 0) {






    if (hdev->vhost_ops->vhost_backend_init(hdev, opaque) < 0) {


        return -errno;










    QLIST_INSERT_HEAD(&vhost_devices, hdev, entry);



    r = hdev->vhost_ops->vhost_call(hdev, VHOST_SET_OWNER, NULL);

    if (r < 0) {

        goto fail;




    r = hdev->vhost_ops->vhost_call(hdev, VHOST_GET_FEATURES, &features);

    if (r < 0) {

        goto fail;




    for (i = 0; i < hdev->nvqs; ++i) {

        r = vhost_virtqueue_init(hdev, hdev->vqs + i, hdev->vq_index + i);

        if (r < 0) {

            goto fail_vq;



    hdev->features = features;



    hdev->memory_listener = (MemoryListener) {

        .begin = vhost_begin,

        .commit = vhost_commit,

        .region_add = vhost_region_add,

        .region_del = vhost_region_del,

        .region_nop = vhost_region_nop,

        .log_start = vhost_log_start,

        .log_stop = vhost_log_stop,

        .log_sync = vhost_log_sync,

        .log_global_start = vhost_log_global_start,

        .log_global_stop = vhost_log_global_stop,

        .eventfd_add = vhost_eventfd_add,

        .eventfd_del = vhost_eventfd_del,

        .priority = 10

    };

    hdev->migration_blocker = NULL;

    if (!(hdev->features & (0x1ULL << VHOST_F_LOG_ALL))) {

        error_setg(&hdev->migration_blocker,

                   "Migration disabled: vhost lacks VHOST_F_LOG_ALL feature.");

        migrate_add_blocker(hdev->migration_blocker);


    hdev->mem = g_malloc0(offsetof(struct vhost_memory, regions));

    hdev->n_mem_sections = 0;

    hdev->mem_sections = NULL;

    hdev->log = NULL;

    hdev->log_size = 0;

    hdev->log_enabled = false;

    hdev->started = false;

    hdev->memory_changed = false;

    memory_listener_register(&hdev->memory_listener, &address_space_memory);

    return 0;

fail_vq:

    while (--i >= 0) {

        vhost_virtqueue_cleanup(hdev->vqs + i);


fail:

    r = -errno;

    hdev->vhost_ops->vhost_backend_cleanup(hdev);

    QLIST_REMOVE(hdev, entry);

    return r;

int FUNC_0(struct vhost_dev *VAR_0, void *VAR_1,

                   VhostBackendType VAR_2)

{

    uint64_t features;

    int VAR_3, VAR_4;



    if (vhost_set_backend_type(VAR_0, VAR_2) < 0) {






    if (VAR_0->vhost_ops->vhost_backend_init(VAR_0, VAR_1) < 0) {


        return -errno;










    QLIST_INSERT_HEAD(&vhost_devices, VAR_0, entry);



    VAR_4 = VAR_0->vhost_ops->vhost_call(VAR_0, VHOST_SET_OWNER, NULL);

    if (VAR_4 < 0) {

        goto fail;




    VAR_4 = VAR_0->vhost_ops->vhost_call(VAR_0, VHOST_GET_FEATURES, &features);

    if (VAR_4 < 0) {

        goto fail;




    for (VAR_3 = 0; VAR_3 < VAR_0->nvqs; ++VAR_3) {

        VAR_4 = vhost_virtqueue_init(VAR_0, VAR_0->vqs + VAR_3, VAR_0->vq_index + VAR_3);

        if (VAR_4 < 0) {

            goto fail_vq;



    VAR_0->features = features;



    VAR_0->memory_listener = (MemoryListener) {

        .begin = vhost_begin,

        .commit = vhost_commit,

        .region_add = vhost_region_add,

        .region_del = vhost_region_del,

        .region_nop = vhost_region_nop,

        .log_start = vhost_log_start,

        .log_stop = vhost_log_stop,

        .log_sync = vhost_log_sync,

        .log_global_start = vhost_log_global_start,

        .log_global_stop = vhost_log_global_stop,

        .eventfd_add = vhost_eventfd_add,

        .eventfd_del = vhost_eventfd_del,

        .priority = 10

    };

    VAR_0->migration_blocker = NULL;

    if (!(VAR_0->features & (0x1ULL << VHOST_F_LOG_ALL))) {

        error_setg(&VAR_0->migration_blocker,

                   "Migration disabled: vhost lacks VHOST_F_LOG_ALL feature.");

        migrate_add_blocker(VAR_0->migration_blocker);


    VAR_0->mem = g_malloc0(offsetof(struct vhost_memory, regions));

    VAR_0->n_mem_sections = 0;

    VAR_0->mem_sections = NULL;

    VAR_0->log = NULL;

    VAR_0->log_size = 0;

    VAR_0->log_enabled = false;

    VAR_0->started = false;

    VAR_0->memory_changed = false;

    memory_listener_register(&VAR_0->memory_listener, &address_space_memory);

    return 0;

fail_vq:

    while (--VAR_3 >= 0) {

        vhost_virtqueue_cleanup(VAR_0->vqs + VAR_3);


fail:

    VAR_4 = -errno;

    VAR_0->vhost_ops->vhost_backend_cleanup(VAR_0);

    QLIST_REMOVE(VAR_0, entry);

    return VAR_4;

int FUNC_0(struct vhost_dev *VAR_0, void *VAR_1,
VhostBackendType VAR_2)
{ uint64_t features; int VAR_3, VAR_4; if (vhost_set_backend_type(VAR_0, VAR_2) < 0) { if (VAR_0->vhost_ops->vhost_backend_init(VAR_0, VAR_1) < 0) { return -errno; QLIST_INSERT_HEAD(&vhost_devices, VAR_0, entry); VAR_4 = VAR_0->vhost_ops->vhost_call(VAR_0, VHOST_SET_OWNER, NULL); if (VAR_4 < 0) { goto fail; VAR_4 = VAR_0->vhost_ops->vhost_call(VAR_0, VHOST_GET_FEATURES, &features); if (VAR_4 < 0) { goto fail; for (VAR_3 = 0; VAR_3 < VAR_0->nvqs; ++VAR_3) { VAR_4 = vhost_virtqueue_init(VAR_0, VAR_0->vqs + VAR_3, VAR_0->vq_index + VAR_3); if (VAR_4 < 0) { goto fail_vq; VAR_0->features = features; VAR_0->memory_listener = (MemoryListener) { .begin = vhost_begin,
.commit = vhost_commit,
.region_add = vhost_region_add,
.region_del = vhost_region_del,
.region_nop = vhost_region_nop,
.log_start = vhost_log_start,
.log_stop = vhost_log_stop,
.log_sync = vhost_log_sync,
.log_global_start = vhost_log_global_start,
.log_global_stop = vhost_log_global_stop,
.eventfd_add = vhost_eventfd_add,
.eventfd_del = vhost_eventfd_del,
.priority = 10
}; VAR_0->migration_blocker = NULL; if (!(VAR_0->features & (0x1ULL << VHOST_F_LOG_ALL))) { error_setg(&VAR_0->migration_blocker,
"Migration disabled: vhost lacks VHOST_F_LOG_ALL feature."); migrate_add_blocker(VAR_0->migration_blocker); VAR_0->mem = g_malloc0(offsetof(struct vhost_memory, regions)); VAR_0->n_mem_sections = 0; VAR_0->mem_sections = NULL; VAR_0->log = NULL; VAR_0->log_size = 0; VAR_0->log_enabled = false; VAR_0->started = false; VAR_0->memory_changed = false; memory_listener_register(&VAR_0->memory_listener, &address_space_memory); return 0; fail_vq:
while (--VAR_3 >= 0) { vhost_virtqueue_cleanup(VAR_0->vqs + VAR_3); fail:
VAR_4 = -errno; VAR_0->vhost_ops->vhost_backend_cleanup(VAR_0); QLIST_REMOVE(VAR_0, entry); return VAR_4;