static void ivshmem_realize(PCIDevice *dev, Error **errp) { IVShmemState *s = IVSHMEM_COMMON(dev); if (!qtest_enabled()) { error_report("ivshmem is deprecated, please use ivshmem-plain" " or ivshmem-doorbell instead"); } if (!!qemu_chr_fe_get_driver(&s->server_chr) + !!s->shmobj != 1) { error_setg(errp, "You must specify either 'shm' or 'chardev'"); return; } if (s->sizearg == NULL) { s->legacy_size = 4 << 20; /* 4 MB default */ } else { int64_t size = qemu_strtosz_MiB(s->sizearg, NULL); if (size < 0 || (size_t)size != size || !is_power_of_2(size)) { error_setg(errp, "Invalid size %s", s->sizearg); return; } s->legacy_size = size; } /* check that role is reasonable */ if (s->role) { if (strncmp(s->role, "peer", 5) == 0) { s->master = ON_OFF_AUTO_OFF; } else if (strncmp(s->role, "master", 7) == 0) { s->master = ON_OFF_AUTO_ON; } else { error_setg(errp, "'role' must be 'peer' or 'master'"); return; } } else { s->master = ON_OFF_AUTO_AUTO; } if (s->shmobj) { desugar_shm(s); } /* * Note: we don't use INTx with IVSHMEM_MSI at all, so this is a * bald-faced lie then. But it's a backwards compatible lie. */ pci_config_set_interrupt_pin(dev->config, 1); ivshmem_common_realize(dev, errp); }