static void s390_init(ram_addr_t ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { CPUState *env = NULL; ram_addr_t ram_addr; ram_addr_t kernel_size = 0; ram_addr_t initrd_offset; ram_addr_t initrd_size = 0; int i; /* XXX we only work on KVM for now */ if (!kvm_enabled()) { fprintf(stderr, "The S390 target only works with KVM enabled\n"); exit(1); } /* get a BUS */ s390_bus = s390_virtio_bus_init(&ram_size); /* allocate RAM */ ram_addr = qemu_ram_alloc(ram_size); cpu_register_physical_memory(0, ram_size, ram_addr); /* init CPUs */ if (cpu_model == NULL) { cpu_model = "host"; } ipi_states = qemu_malloc(sizeof(CPUState *) * smp_cpus); for (i = 0; i < smp_cpus; i++) { CPUState *tmp_env; tmp_env = cpu_init(cpu_model); if (!env) { env = tmp_env; } ipi_states[i] = tmp_env; tmp_env->halted = 1; tmp_env->exception_index = EXCP_HLT; } env->halted = 0; env->exception_index = 0; if (kernel_filename) { kernel_size = load_image(kernel_filename, qemu_get_ram_ptr(0)); if (lduw_phys(KERN_IMAGE_START) != 0x0dd0) { fprintf(stderr, "Specified image is not an s390 boot image\n"); exit(1); } env->psw.addr = KERN_IMAGE_START; env->psw.mask = 0x0000000180000000ULL; } else { ram_addr_t bios_size = 0; char *bios_filename; /* Load zipl bootloader */ if (bios_name == NULL) { bios_name = ZIPL_FILENAME; } bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); bios_size = load_image(bios_filename, qemu_get_ram_ptr(ZIPL_LOAD_ADDR)); if ((long)bios_size < 0) { hw_error("could not load bootloader '%s'\n", bios_name); } if (bios_size > 4096) { hw_error("stage1 bootloader is > 4k\n"); } env->psw.addr = ZIPL_START; env->psw.mask = 0x0000000180000000ULL; } if (initrd_filename) { initrd_offset = INITRD_START; while (kernel_size + 0x100000 > initrd_offset) { initrd_offset += 0x100000; } initrd_size = load_image(initrd_filename, qemu_get_ram_ptr(initrd_offset)); stq_phys(INITRD_PARM_START, initrd_offset); stq_phys(INITRD_PARM_SIZE, initrd_size); } if (kernel_cmdline) { cpu_physical_memory_rw(KERN_PARM_AREA, (uint8_t *)kernel_cmdline, strlen(kernel_cmdline), 1); } /* Create VirtIO network adapters */ for(i = 0; i < nb_nics; i++) { NICInfo *nd = &nd_table[i]; DeviceState *dev; if (!nd->model) { nd->model = qemu_strdup("virtio"); } if (strcmp(nd->model, "virtio")) { fprintf(stderr, "S390 only supports VirtIO nics\n"); exit(1); } dev = qdev_create((BusState *)s390_bus, "virtio-net-s390"); qdev_set_nic_properties(dev, nd); qdev_init_nofail(dev); } /* Create VirtIO disk drives */ for(i = 0; i < MAX_BLK_DEVS; i++) { DriveInfo *dinfo; DeviceState *dev; dinfo = drive_get(IF_IDE, 0, i); if (!dinfo) { continue; } dev = qdev_create((BusState *)s390_bus, "virtio-blk-s390"); qdev_prop_set_drive(dev, "drive", dinfo); qdev_init_nofail(dev); } }