static void ppc_spapr_init(MachineState *machine) { sPAPRMachineState *spapr = SPAPR_MACHINE(machine); sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); const char *kernel_filename = machine->kernel_filename; const char *kernel_cmdline = machine->kernel_cmdline; const char *initrd_filename = machine->initrd_filename; PowerPCCPU *cpu; PCIHostState *phb; int i; MemoryRegion *sysmem = get_system_memory(); MemoryRegion *ram = g_new(MemoryRegion, 1); MemoryRegion *rma_region; void *rma = NULL; hwaddr rma_alloc_size; hwaddr node0_size = spapr_node0_size(); uint32_t initrd_base = 0; long kernel_size = 0, initrd_size = 0; long load_limit, fw_size; bool kernel_le = false; char *filename; msi_supported = true; QLIST_INIT(&spapr->phbs); cpu_ppc_hypercall = emulate_spapr_hypercall; /* Allocate RMA if necessary */ rma_alloc_size = kvmppc_alloc_rma(&rma); if (rma_alloc_size == -1) { error_report("Unable to create RMA"); exit(1); } if (rma_alloc_size && (rma_alloc_size < node0_size)) { spapr->rma_size = rma_alloc_size; } else { spapr->rma_size = node0_size; /* With KVM, we don't actually know whether KVM supports an * unbounded RMA (PR KVM) or is limited by the hash table size * (HV KVM using VRMA), so we always assume the latter * * In that case, we also limit the initial allocations for RTAS * etc... to 256M since we have no way to know what the VRMA size * is going to be as it depends on the size of the hash table * isn't determined yet. */ if (kvm_enabled()) { spapr->vrma_adjust = 1; spapr->rma_size = MIN(spapr->rma_size, 0x10000000); } } if (spapr->rma_size > node0_size) { error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx")", spapr->rma_size); exit(1); } /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */ load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD; /* We aim for a hash table of size 1/128 the size of RAM. The * normal rule of thumb is 1/64 the size of RAM, but that's much * more than needed for the Linux guests we support. */ spapr->htab_shift = 18; /* Minimum architected size */ while (spapr->htab_shift <= 46) { if ((1ULL << (spapr->htab_shift + 7)) >= machine->maxram_size) { break; } spapr->htab_shift++; } spapr_alloc_htab(spapr); /* Set up Interrupt Controller before we create the VCPUs */ spapr->icp = xics_system_init(machine, DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), smp_threads), XICS_IRQS, &error_fatal); if (smc->dr_lmb_enabled) { spapr_validate_node_memory(machine, &error_fatal); } /* init CPUs */ if (machine->cpu_model == NULL) { machine->cpu_model = kvm_enabled() ? "host" : "POWER7"; } for (i = 0; i < smp_cpus; i++) { cpu = cpu_ppc_init(machine->cpu_model); if (cpu == NULL) { error_report("Unable to find PowerPC CPU definition"); exit(1); } spapr_cpu_init(spapr, cpu, &error_fatal); } if (kvm_enabled()) { /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */ kvmppc_enable_logical_ci_hcalls(); kvmppc_enable_set_mode_hcall(); } /* allocate RAM */ memory_region_allocate_system_memory(ram, NULL, "ppc_spapr.ram", machine->ram_size); memory_region_add_subregion(sysmem, 0, ram); if (rma_alloc_size && rma) { rma_region = g_new(MemoryRegion, 1); memory_region_init_ram_ptr(rma_region, NULL, "ppc_spapr.rma", rma_alloc_size, rma); vmstate_register_ram_global(rma_region); memory_region_add_subregion(sysmem, 0, rma_region); } /* initialize hotplug memory address space */ if (machine->ram_size < machine->maxram_size) { ram_addr_t hotplug_mem_size = machine->maxram_size - machine->ram_size; if (machine->ram_slots > SPAPR_MAX_RAM_SLOTS) { error_report("Specified number of memory slots %" PRIu64" exceeds max supported %d", machine->ram_slots, SPAPR_MAX_RAM_SLOTS); exit(1); } spapr->hotplug_memory.base = ROUND_UP(machine->ram_size, SPAPR_HOTPLUG_MEM_ALIGN); memory_region_init(&spapr->hotplug_memory.mr, OBJECT(spapr), "hotplug-memory", hotplug_mem_size); memory_region_add_subregion(sysmem, spapr->hotplug_memory.base, &spapr->hotplug_memory.mr); } if (smc->dr_lmb_enabled) { spapr_create_lmb_dr_connectors(spapr); } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin"); if (!filename) { error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin"); exit(1); } spapr->rtas_size = get_image_size(filename); spapr->rtas_blob = g_malloc(spapr->rtas_size); if (load_image_size(filename, spapr->rtas_blob, spapr->rtas_size) < 0) { error_report("Could not load LPAR rtas '%s'", filename); exit(1); } if (spapr->rtas_size > RTAS_MAX_SIZE) { error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)", (size_t)spapr->rtas_size, RTAS_MAX_SIZE); exit(1); } g_free(filename); /* Set up EPOW events infrastructure */ spapr_events_init(spapr); /* Set up the RTC RTAS interfaces */ spapr_rtc_create(spapr); /* Set up VIO bus */ spapr->vio_bus = spapr_vio_bus_init(); for (i = 0; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { spapr_vty_create(spapr->vio_bus, serial_hds[i]); } } /* We always have at least the nvram device on VIO */ spapr_create_nvram(spapr); /* Set up PCI */ spapr_pci_rtas_init(); phb = spapr_create_phb(spapr, 0); for (i = 0; i < nb_nics; i++) { NICInfo *nd = &nd_table[i]; if (!nd->model) { nd->model = g_strdup("ibmveth"); } if (strcmp(nd->model, "ibmveth") == 0) { spapr_vlan_create(spapr->vio_bus, nd); } else { pci_nic_init_nofail(&nd_table[i], phb->bus, nd->model, NULL); } } for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) { spapr_vscsi_create(spapr->vio_bus); } /* Graphics */ if (spapr_vga_init(phb->bus, &error_fatal)) { spapr->has_graphics = true; machine->usb |= defaults_enabled() && !machine->usb_disabled; } if (machine->usb) { if (smc->use_ohci_by_default) { pci_create_simple(phb->bus, -1, "pci-ohci"); } else { pci_create_simple(phb->bus, -1, "nec-usb-xhci"); } if (spapr->has_graphics) { USBBus *usb_bus = usb_bus_find(-1); usb_create_simple(usb_bus, "usb-kbd"); usb_create_simple(usb_bus, "usb-mouse"); } } if (spapr->rma_size < (MIN_RMA_SLOF << 20)) { error_report( "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)", MIN_RMA_SLOF); exit(1); } if (kernel_filename) { uint64_t lowaddr = 0; kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE, 0); if (kernel_size == ELF_LOAD_WRONG_ENDIAN) { kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, NULL, &lowaddr, NULL, 0, PPC_ELF_MACHINE, 0); kernel_le = kernel_size > 0; } if (kernel_size < 0) { error_report("error loading %s: %s", kernel_filename, load_elf_strerror(kernel_size)); exit(1); } /* load initrd */ if (initrd_filename) { /* Try to locate the initrd in the gap between the kernel * and the firmware. Add a bit of space just in case */ initrd_base = (KERNEL_LOAD_ADDR + kernel_size + 0x1ffff) & ~0xffff; initrd_size = load_image_targphys(initrd_filename, initrd_base, load_limit - initrd_base); if (initrd_size < 0) { error_report("could not load initial ram disk '%s'", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } } if (bios_name == NULL) { bios_name = FW_FILE_NAME; } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); if (!filename) { error_report("Could not find LPAR firmware '%s'", bios_name); exit(1); } fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE); if (fw_size <= 0) { error_report("Could not load LPAR firmware '%s'", filename); exit(1); } g_free(filename); /* FIXME: Should register things through the MachineState's qdev * interface, this is a legacy from the sPAPREnvironment structure * which predated MachineState but had a similar function */ vmstate_register(NULL, 0, &vmstate_spapr, spapr); register_savevm_live(NULL, "spapr/htab", -1, 1, &savevm_htab_handlers, spapr); /* Prepare the device tree */ spapr->fdt_skel = spapr_create_fdt_skel(initrd_base, initrd_size, kernel_size, kernel_le, kernel_cmdline, spapr->check_exception_irq); assert(spapr->fdt_skel != NULL); /* used by RTAS */ QTAILQ_INIT(&spapr->ccs_list); qemu_register_reset(spapr_ccs_reset_hook, spapr); qemu_register_boot_set(spapr_boot_set, spapr); }