C++ (Cpp) tpm_backend_init Examples

Example #1

File: tpm_util.c Project: pfliu/qemu

static void set_tpm(Object *obj, Visitor *v, const char *name, void *opaque,
                    Error **errp)
{
    DeviceState *dev = DEVICE(obj);
    Error *local_err = NULL;
    Property *prop = opaque;
    TPMBackend *s, **be = qdev_get_prop_ptr(dev, prop);
    char *str;

    if (dev->realized) {
        qdev_prop_set_after_realize(dev, name, errp);
        return;
    }

    visit_type_str(v, name, &str, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }

    s = qemu_find_tpm_be(str);
    if (s == NULL) {
        error_setg(errp, "Property '%s.%s' can't find value '%s'",
                   object_get_typename(obj), prop->name, str);
    } else if (tpm_backend_init(s, TPM_IF(obj), errp) == 0) {
        *be = s; /* weak reference, avoid cyclic ref */
    }
    g_free(str);
}

Example #2

File: tpm_tis.c Project: 01org/KVMGT-qemu

static void tpm_tis_realizefn(DeviceState *dev, Error **errp)
{
    TPMState *s = TPM(dev);
    TPMTISEmuState *tis = &s->s.tis;

    s->be_driver = qemu_find_tpm(s->backend);
    if (!s->be_driver) {
        error_setg(errp, "tpm_tis: backend driver with id %s could not be "
                   "found", s->backend);
        return;
    }

    s->be_driver->fe_model = TPM_MODEL_TPM_TIS;

    if (tpm_backend_init(s->be_driver, s, tpm_tis_receive_cb)) {
        error_setg(errp, "tpm_tis: backend driver with id %s could not be "
                   "initialized", s->backend);
        return;
    }

    if (tis->irq_num > 15) {
        error_setg(errp, "tpm_tis: IRQ %d for TPM TIS is outside valid range "
                   "of 0 to 15.\n", tis->irq_num);
        return;
    }

    tis->bh = qemu_bh_new(tpm_tis_receive_bh, s);

    isa_init_irq(&s->busdev, &tis->irq, tis->irq_num);
}