1 /* 2 * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator 3 * 4 * Copyright (c) 2018-2021 BALATON Zoltan 5 * 6 * This work is licensed under the GNU GPL license version 2 or later. 7 * 8 */ 9 10 #include "qemu/osdep.h" 11 #include "qemu/units.h" 12 #include "qapi/error.h" 13 #include "hw/hw.h" 14 #include "hw/ppc/ppc.h" 15 #include "hw/sysbus.h" 16 #include "hw/pci/pci_host.h" 17 #include "hw/irq.h" 18 #include "hw/pci-host/mv64361.h" 19 #include "hw/isa/vt82c686.h" 20 #include "hw/ide/pci.h" 21 #include "hw/i2c/smbus_eeprom.h" 22 #include "hw/qdev-properties.h" 23 #include "sysemu/reset.h" 24 #include "sysemu/runstate.h" 25 #include "sysemu/qtest.h" 26 #include "hw/boards.h" 27 #include "hw/loader.h" 28 #include "hw/fw-path-provider.h" 29 #include "elf.h" 30 #include "qemu/log.h" 31 #include "qemu/error-report.h" 32 #include "sysemu/kvm.h" 33 #include "kvm_ppc.h" 34 #include "exec/address-spaces.h" 35 #include "qom/qom-qobject.h" 36 #include "qapi/qmp/qdict.h" 37 #include "trace.h" 38 #include "qemu/datadir.h" 39 #include "sysemu/device_tree.h" 40 #include "hw/ppc/vof.h" 41 42 #include <libfdt.h> 43 44 #define PROM_FILENAME "vof.bin" 45 #define PROM_ADDR 0xfff00000 46 #define PROM_SIZE 0x80000 47 48 #define KVMPPC_HCALL_BASE 0xf000 49 #define KVMPPC_H_RTAS (KVMPPC_HCALL_BASE + 0x0) 50 #define KVMPPC_H_VOF_CLIENT (KVMPPC_HCALL_BASE + 0x5) 51 52 #define H_SUCCESS 0 53 #define H_PRIVILEGE -3 /* Caller not privileged */ 54 #define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */ 55 56 #define BUS_FREQ_HZ 133333333 57 58 #define PCI0_CFG_ADDR 0xcf8 59 #define PCI0_MEM_BASE 0xc0000000 60 #define PCI0_MEM_SIZE 0x20000000 61 #define PCI0_IO_BASE 0xf8000000 62 #define PCI0_IO_SIZE 0x10000 63 64 #define PCI1_CFG_ADDR 0xc78 65 #define PCI1_MEM_BASE 0x80000000 66 #define PCI1_MEM_SIZE 0x40000000 67 #define PCI1_IO_BASE 0xfe000000 68 #define PCI1_IO_SIZE 0x10000 69 70 #define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2") 71 OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE) 72 73 struct Pegasos2MachineState { 74 MachineState parent_obj; 75 PowerPCCPU *cpu; 76 DeviceState *mv; 77 Vof *vof; 78 void *fdt_blob; 79 uint64_t kernel_addr; 80 uint64_t kernel_entry; 81 uint64_t kernel_size; 82 }; 83 84 static void *build_fdt(MachineState *machine, int *fdt_size); 85 86 static void pegasos2_cpu_reset(void *opaque) 87 { 88 PowerPCCPU *cpu = opaque; 89 Pegasos2MachineState *pm = PEGASOS2_MACHINE(current_machine); 90 91 cpu_reset(CPU(cpu)); 92 cpu->env.spr[SPR_HID1] = 7ULL << 28; 93 if (pm->vof) { 94 cpu->env.gpr[1] = 2 * VOF_STACK_SIZE - 0x20; 95 cpu->env.nip = 0x100; 96 } 97 } 98 99 static void pegasos2_init(MachineState *machine) 100 { 101 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine); 102 CPUPPCState *env; 103 MemoryRegion *rom = g_new(MemoryRegion, 1); 104 PCIBus *pci_bus; 105 PCIDevice *dev; 106 I2CBus *i2c_bus; 107 const char *fwname = machine->firmware ?: PROM_FILENAME; 108 char *filename; 109 int sz; 110 uint8_t *spd_data; 111 112 /* init CPU */ 113 pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 114 env = &pm->cpu->env; 115 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 116 error_report("Incompatible CPU, only 6xx bus supported"); 117 exit(1); 118 } 119 120 /* Set time-base frequency */ 121 cpu_ppc_tb_init(env, BUS_FREQ_HZ / 4); 122 qemu_register_reset(pegasos2_cpu_reset, pm->cpu); 123 124 /* RAM */ 125 if (machine->ram_size > 2 * GiB) { 126 error_report("RAM size more than 2 GiB is not supported"); 127 exit(1); 128 } 129 memory_region_add_subregion(get_system_memory(), 0, machine->ram); 130 131 /* allocate and load firmware */ 132 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname); 133 if (!filename) { 134 error_report("Could not find firmware '%s'", fwname); 135 exit(1); 136 } 137 if (!machine->firmware && !pm->vof) { 138 pm->vof = g_malloc0(sizeof(*pm->vof)); 139 } 140 memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal); 141 memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom); 142 sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1, 143 PPC_ELF_MACHINE, 0, 0); 144 if (sz <= 0) { 145 sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE); 146 } 147 if (sz <= 0 || sz > PROM_SIZE) { 148 error_report("Could not load firmware '%s'", filename); 149 exit(1); 150 } 151 g_free(filename); 152 if (pm->vof) { 153 pm->vof->fw_size = sz; 154 } 155 156 /* Marvell Discovery II system controller */ 157 pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1, 158 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT])); 159 pci_bus = mv64361_get_pci_bus(pm->mv, 1); 160 161 /* VIA VT8231 South Bridge (multifunction PCI device) */ 162 /* VT8231 function 0: PCI-to-ISA Bridge */ 163 dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true, 164 TYPE_VT8231_ISA); 165 qdev_connect_gpio_out(DEVICE(dev), 0, 166 qdev_get_gpio_in_named(pm->mv, "gpp", 31)); 167 168 /* VT8231 function 1: IDE Controller */ 169 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide"); 170 pci_ide_create_devs(dev); 171 172 /* VT8231 function 2-3: USB Ports */ 173 pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci"); 174 pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci"); 175 176 /* VT8231 function 4: Power Management Controller */ 177 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM); 178 i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c")); 179 spd_data = spd_data_generate(DDR, machine->ram_size); 180 smbus_eeprom_init_one(i2c_bus, 0x57, spd_data); 181 182 /* VT8231 function 5-6: AC97 Audio & Modem */ 183 pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97); 184 pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97); 185 186 /* other PC hardware */ 187 pci_vga_init(pci_bus); 188 189 if (machine->kernel_filename) { 190 sz = load_elf(machine->kernel_filename, NULL, NULL, NULL, 191 &pm->kernel_entry, &pm->kernel_addr, NULL, NULL, 1, 192 PPC_ELF_MACHINE, 0, 0); 193 if (sz <= 0) { 194 error_report("Could not load kernel '%s'", 195 machine->kernel_filename); 196 exit(1); 197 } 198 pm->kernel_size = sz; 199 if (!pm->vof) { 200 warn_report("Option -kernel may be ineffective with -bios."); 201 } 202 } else if (pm->vof && !qtest_enabled()) { 203 warn_report("Using Virtual OpenFirmware but no -kernel option."); 204 } 205 206 if (!pm->vof && machine->kernel_cmdline && machine->kernel_cmdline[0]) { 207 warn_report("Option -append may be ineffective with -bios."); 208 } 209 } 210 211 static uint32_t pegasos2_mv_reg_read(Pegasos2MachineState *pm, 212 uint32_t addr, uint32_t len) 213 { 214 MemoryRegion *r = sysbus_mmio_get_region(SYS_BUS_DEVICE(pm->mv), 0); 215 uint64_t val = 0xffffffffULL; 216 memory_region_dispatch_read(r, addr, &val, size_memop(len) | MO_LE, 217 MEMTXATTRS_UNSPECIFIED); 218 return val; 219 } 220 221 static void pegasos2_mv_reg_write(Pegasos2MachineState *pm, uint32_t addr, 222 uint32_t len, uint32_t val) 223 { 224 MemoryRegion *r = sysbus_mmio_get_region(SYS_BUS_DEVICE(pm->mv), 0); 225 memory_region_dispatch_write(r, addr, val, size_memop(len) | MO_LE, 226 MEMTXATTRS_UNSPECIFIED); 227 } 228 229 static uint32_t pegasos2_pci_config_read(Pegasos2MachineState *pm, int bus, 230 uint32_t addr, uint32_t len) 231 { 232 hwaddr pcicfg = bus ? PCI1_CFG_ADDR : PCI0_CFG_ADDR; 233 uint64_t val = 0xffffffffULL; 234 235 if (len <= 4) { 236 pegasos2_mv_reg_write(pm, pcicfg, 4, addr | BIT(31)); 237 val = pegasos2_mv_reg_read(pm, pcicfg + 4, len); 238 } 239 return val; 240 } 241 242 static void pegasos2_pci_config_write(Pegasos2MachineState *pm, int bus, 243 uint32_t addr, uint32_t len, uint32_t val) 244 { 245 hwaddr pcicfg = bus ? PCI1_CFG_ADDR : PCI0_CFG_ADDR; 246 247 pegasos2_mv_reg_write(pm, pcicfg, 4, addr | BIT(31)); 248 pegasos2_mv_reg_write(pm, pcicfg + 4, len, val); 249 } 250 251 static void pegasos2_machine_reset(MachineState *machine) 252 { 253 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine); 254 void *fdt; 255 uint64_t d[2]; 256 int sz; 257 258 qemu_devices_reset(); 259 if (!pm->vof) { 260 return; /* Firmware should set up machine so nothing to do */ 261 } 262 263 /* Otherwise, set up devices that board firmware would normally do */ 264 pegasos2_mv_reg_write(pm, 0, 4, 0x28020ff); 265 pegasos2_mv_reg_write(pm, 0x278, 4, 0xa31fc); 266 pegasos2_mv_reg_write(pm, 0xf300, 4, 0x11ff0400); 267 pegasos2_mv_reg_write(pm, 0xf10c, 4, 0x80000000); 268 pegasos2_mv_reg_write(pm, 0x1c, 4, 0x8000000); 269 pegasos2_pci_config_write(pm, 0, PCI_COMMAND, 2, PCI_COMMAND_IO | 270 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); 271 pegasos2_pci_config_write(pm, 1, PCI_COMMAND, 2, PCI_COMMAND_IO | 272 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); 273 274 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 0) << 8) | 275 PCI_INTERRUPT_LINE, 2, 0x9); 276 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 0) << 8) | 277 0x50, 1, 0x2); 278 279 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) | 280 PCI_INTERRUPT_LINE, 2, 0x109); 281 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) | 282 PCI_CLASS_PROG, 1, 0xf); 283 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) | 284 0x40, 1, 0xb); 285 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) | 286 0x50, 4, 0x17171717); 287 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) | 288 PCI_COMMAND, 2, 0x87); 289 290 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 2) << 8) | 291 PCI_INTERRUPT_LINE, 2, 0x409); 292 293 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 3) << 8) | 294 PCI_INTERRUPT_LINE, 2, 0x409); 295 296 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) | 297 PCI_INTERRUPT_LINE, 2, 0x9); 298 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) | 299 0x48, 4, 0xf00); 300 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) | 301 0x40, 4, 0x558020); 302 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) | 303 0x90, 4, 0xd00); 304 305 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 5) << 8) | 306 PCI_INTERRUPT_LINE, 2, 0x309); 307 308 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 6) << 8) | 309 PCI_INTERRUPT_LINE, 2, 0x309); 310 311 /* Device tree and VOF set up */ 312 vof_init(pm->vof, machine->ram_size, &error_fatal); 313 if (vof_claim(pm->vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE) == -1) { 314 error_report("Memory allocation for stack failed"); 315 exit(1); 316 } 317 if (pm->kernel_size && 318 vof_claim(pm->vof, pm->kernel_addr, pm->kernel_size, 0) == -1) { 319 error_report("Memory for kernel is in use"); 320 exit(1); 321 } 322 fdt = build_fdt(machine, &sz); 323 /* FIXME: VOF assumes entry is same as load address */ 324 d[0] = cpu_to_be64(pm->kernel_entry); 325 d[1] = cpu_to_be64(pm->kernel_size - (pm->kernel_entry - pm->kernel_addr)); 326 qemu_fdt_setprop(fdt, "/chosen", "qemu,boot-kernel", d, sizeof(d)); 327 328 qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt)); 329 g_free(pm->fdt_blob); 330 pm->fdt_blob = fdt; 331 332 vof_build_dt(fdt, pm->vof); 333 vof_client_open_store(fdt, pm->vof, "/chosen", "stdout", "/failsafe"); 334 pm->cpu->vhyp = PPC_VIRTUAL_HYPERVISOR(machine); 335 } 336 337 enum pegasos2_rtas_tokens { 338 RTAS_RESTART_RTAS = 0, 339 RTAS_NVRAM_FETCH = 1, 340 RTAS_NVRAM_STORE = 2, 341 RTAS_GET_TIME_OF_DAY = 3, 342 RTAS_SET_TIME_OF_DAY = 4, 343 RTAS_EVENT_SCAN = 6, 344 RTAS_CHECK_EXCEPTION = 7, 345 RTAS_READ_PCI_CONFIG = 8, 346 RTAS_WRITE_PCI_CONFIG = 9, 347 RTAS_DISPLAY_CHARACTER = 10, 348 RTAS_SET_INDICATOR = 11, 349 RTAS_POWER_OFF = 17, 350 RTAS_SUSPEND = 18, 351 RTAS_HIBERNATE = 19, 352 RTAS_SYSTEM_REBOOT = 20, 353 }; 354 355 static target_ulong pegasos2_rtas(PowerPCCPU *cpu, Pegasos2MachineState *pm, 356 target_ulong args_real) 357 { 358 AddressSpace *as = CPU(cpu)->as; 359 uint32_t token = ldl_be_phys(as, args_real); 360 uint32_t nargs = ldl_be_phys(as, args_real + 4); 361 uint32_t nrets = ldl_be_phys(as, args_real + 8); 362 uint32_t args = args_real + 12; 363 uint32_t rets = args_real + 12 + nargs * 4; 364 365 if (nrets < 1) { 366 qemu_log_mask(LOG_GUEST_ERROR, "Too few return values in RTAS call\n"); 367 return H_PARAMETER; 368 } 369 switch (token) { 370 case RTAS_GET_TIME_OF_DAY: 371 { 372 QObject *qo = object_property_get_qobject(qdev_get_machine(), 373 "rtc-time", &error_fatal); 374 QDict *qd = qobject_to(QDict, qo); 375 376 if (nargs != 0 || nrets != 8 || !qd) { 377 stl_be_phys(as, rets, -1); 378 qobject_unref(qo); 379 return H_PARAMETER; 380 } 381 382 stl_be_phys(as, rets, 0); 383 stl_be_phys(as, rets + 4, qdict_get_int(qd, "tm_year") + 1900); 384 stl_be_phys(as, rets + 8, qdict_get_int(qd, "tm_mon") + 1); 385 stl_be_phys(as, rets + 12, qdict_get_int(qd, "tm_mday")); 386 stl_be_phys(as, rets + 16, qdict_get_int(qd, "tm_hour")); 387 stl_be_phys(as, rets + 20, qdict_get_int(qd, "tm_min")); 388 stl_be_phys(as, rets + 24, qdict_get_int(qd, "tm_sec")); 389 stl_be_phys(as, rets + 28, 0); 390 qobject_unref(qo); 391 return H_SUCCESS; 392 } 393 case RTAS_READ_PCI_CONFIG: 394 { 395 uint32_t addr, len, val; 396 397 if (nargs != 2 || nrets != 2) { 398 stl_be_phys(as, rets, -1); 399 return H_PARAMETER; 400 } 401 addr = ldl_be_phys(as, args); 402 len = ldl_be_phys(as, args + 4); 403 val = pegasos2_pci_config_read(pm, !(addr >> 24), 404 addr & 0x0fffffff, len); 405 stl_be_phys(as, rets, 0); 406 stl_be_phys(as, rets + 4, val); 407 return H_SUCCESS; 408 } 409 case RTAS_WRITE_PCI_CONFIG: 410 { 411 uint32_t addr, len, val; 412 413 if (nargs != 3 || nrets != 1) { 414 stl_be_phys(as, rets, -1); 415 return H_PARAMETER; 416 } 417 addr = ldl_be_phys(as, args); 418 len = ldl_be_phys(as, args + 4); 419 val = ldl_be_phys(as, args + 8); 420 pegasos2_pci_config_write(pm, !(addr >> 24), 421 addr & 0x0fffffff, len, val); 422 stl_be_phys(as, rets, 0); 423 return H_SUCCESS; 424 } 425 case RTAS_DISPLAY_CHARACTER: 426 if (nargs != 1 || nrets != 1) { 427 stl_be_phys(as, rets, -1); 428 return H_PARAMETER; 429 } 430 qemu_log_mask(LOG_UNIMP, "%c", ldl_be_phys(as, args)); 431 stl_be_phys(as, rets, 0); 432 return H_SUCCESS; 433 case RTAS_POWER_OFF: 434 { 435 if (nargs != 2 || nrets != 1) { 436 stl_be_phys(as, rets, -1); 437 return H_PARAMETER; 438 } 439 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); 440 stl_be_phys(as, rets, 0); 441 return H_SUCCESS; 442 } 443 default: 444 qemu_log_mask(LOG_UNIMP, "Unknown RTAS token %u (args=%u, rets=%u)\n", 445 token, nargs, nrets); 446 stl_be_phys(as, rets, 0); 447 return H_SUCCESS; 448 } 449 } 450 451 static bool pegasos2_cpu_in_nested(PowerPCCPU *cpu) 452 { 453 return false; 454 } 455 456 static void pegasos2_hypercall(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu) 457 { 458 Pegasos2MachineState *pm = PEGASOS2_MACHINE(vhyp); 459 CPUPPCState *env = &cpu->env; 460 461 /* The TCG path should also be holding the BQL at this point */ 462 g_assert(qemu_mutex_iothread_locked()); 463 464 if (FIELD_EX64(env->msr, MSR, PR)) { 465 qemu_log_mask(LOG_GUEST_ERROR, "Hypercall made with MSR[PR]=1\n"); 466 env->gpr[3] = H_PRIVILEGE; 467 } else if (env->gpr[3] == KVMPPC_H_RTAS) { 468 env->gpr[3] = pegasos2_rtas(cpu, pm, env->gpr[4]); 469 } else if (env->gpr[3] == KVMPPC_H_VOF_CLIENT) { 470 int ret = vof_client_call(MACHINE(pm), pm->vof, pm->fdt_blob, 471 env->gpr[4]); 472 env->gpr[3] = (ret ? H_PARAMETER : H_SUCCESS); 473 } else { 474 qemu_log_mask(LOG_GUEST_ERROR, "Unsupported hypercall " TARGET_FMT_lx 475 "\n", env->gpr[3]); 476 env->gpr[3] = -1; 477 } 478 } 479 480 static void vhyp_nop(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu) 481 { 482 } 483 484 static target_ulong vhyp_encode_hpt_for_kvm_pr(PPCVirtualHypervisor *vhyp) 485 { 486 return POWERPC_CPU(current_cpu)->env.spr[SPR_SDR1]; 487 } 488 489 static bool pegasos2_setprop(MachineState *ms, const char *path, 490 const char *propname, void *val, int vallen) 491 { 492 return true; 493 } 494 495 static void pegasos2_machine_class_init(ObjectClass *oc, void *data) 496 { 497 MachineClass *mc = MACHINE_CLASS(oc); 498 PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc); 499 VofMachineIfClass *vmc = VOF_MACHINE_CLASS(oc); 500 501 mc->desc = "Genesi/bPlan Pegasos II"; 502 mc->init = pegasos2_init; 503 mc->reset = pegasos2_machine_reset; 504 mc->block_default_type = IF_IDE; 505 mc->default_boot_order = "cd"; 506 mc->default_display = "std"; 507 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9"); 508 mc->default_ram_id = "pegasos2.ram"; 509 mc->default_ram_size = 512 * MiB; 510 511 vhc->cpu_in_nested = pegasos2_cpu_in_nested; 512 vhc->hypercall = pegasos2_hypercall; 513 vhc->cpu_exec_enter = vhyp_nop; 514 vhc->cpu_exec_exit = vhyp_nop; 515 vhc->encode_hpt_for_kvm_pr = vhyp_encode_hpt_for_kvm_pr; 516 517 vmc->setprop = pegasos2_setprop; 518 } 519 520 static const TypeInfo pegasos2_machine_info = { 521 .name = TYPE_PEGASOS2_MACHINE, 522 .parent = TYPE_MACHINE, 523 .class_init = pegasos2_machine_class_init, 524 .instance_size = sizeof(Pegasos2MachineState), 525 .interfaces = (InterfaceInfo[]) { 526 { TYPE_PPC_VIRTUAL_HYPERVISOR }, 527 { TYPE_VOF_MACHINE_IF }, 528 { } 529 }, 530 }; 531 532 static void pegasos2_machine_register_types(void) 533 { 534 type_register_static(&pegasos2_machine_info); 535 } 536 537 type_init(pegasos2_machine_register_types) 538 539 /* FDT creation for passing to firmware */ 540 541 typedef struct { 542 void *fdt; 543 const char *path; 544 } FDTInfo; 545 546 /* We do everything in reverse order so it comes out right in the tree */ 547 548 static void dt_ide(PCIBus *bus, PCIDevice *d, FDTInfo *fi) 549 { 550 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "spi"); 551 } 552 553 static void dt_usb(PCIBus *bus, PCIDevice *d, FDTInfo *fi) 554 { 555 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 0); 556 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 1); 557 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "usb"); 558 } 559 560 static void dt_isa(PCIBus *bus, PCIDevice *d, FDTInfo *fi) 561 { 562 GString *name = g_string_sized_new(64); 563 uint32_t cells[3]; 564 565 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 1); 566 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 2); 567 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "isa"); 568 qemu_fdt_setprop_string(fi->fdt, fi->path, "name", "isa"); 569 570 /* addional devices */ 571 g_string_printf(name, "%s/lpt@i3bc", fi->path); 572 qemu_fdt_add_subnode(fi->fdt, name->str); 573 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 574 cells[0] = cpu_to_be32(7); 575 cells[1] = 0; 576 qemu_fdt_setprop(fi->fdt, name->str, "interrupts", 577 cells, 2 * sizeof(cells[0])); 578 cells[0] = cpu_to_be32(1); 579 cells[1] = cpu_to_be32(0x3bc); 580 cells[2] = cpu_to_be32(8); 581 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 582 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "lpt"); 583 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "lpt"); 584 585 g_string_printf(name, "%s/fdc@i3f0", fi->path); 586 qemu_fdt_add_subnode(fi->fdt, name->str); 587 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 588 cells[0] = cpu_to_be32(6); 589 cells[1] = 0; 590 qemu_fdt_setprop(fi->fdt, name->str, "interrupts", 591 cells, 2 * sizeof(cells[0])); 592 cells[0] = cpu_to_be32(1); 593 cells[1] = cpu_to_be32(0x3f0); 594 cells[2] = cpu_to_be32(8); 595 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 596 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "fdc"); 597 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "fdc"); 598 599 g_string_printf(name, "%s/timer@i40", fi->path); 600 qemu_fdt_add_subnode(fi->fdt, name->str); 601 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 602 cells[0] = cpu_to_be32(1); 603 cells[1] = cpu_to_be32(0x40); 604 cells[2] = cpu_to_be32(8); 605 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 606 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "timer"); 607 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "timer"); 608 609 g_string_printf(name, "%s/rtc@i70", fi->path); 610 qemu_fdt_add_subnode(fi->fdt, name->str); 611 qemu_fdt_setprop_string(fi->fdt, name->str, "compatible", "ds1385-rtc"); 612 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 613 cells[0] = cpu_to_be32(8); 614 cells[1] = 0; 615 qemu_fdt_setprop(fi->fdt, name->str, "interrupts", 616 cells, 2 * sizeof(cells[0])); 617 cells[0] = cpu_to_be32(1); 618 cells[1] = cpu_to_be32(0x70); 619 cells[2] = cpu_to_be32(2); 620 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 621 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "rtc"); 622 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "rtc"); 623 624 g_string_printf(name, "%s/keyboard@i60", fi->path); 625 qemu_fdt_add_subnode(fi->fdt, name->str); 626 cells[0] = cpu_to_be32(1); 627 cells[1] = 0; 628 qemu_fdt_setprop(fi->fdt, name->str, "interrupts", 629 cells, 2 * sizeof(cells[0])); 630 cells[0] = cpu_to_be32(1); 631 cells[1] = cpu_to_be32(0x60); 632 cells[2] = cpu_to_be32(5); 633 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 634 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "keyboard"); 635 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "keyboard"); 636 637 g_string_printf(name, "%s/8042@i60", fi->path); 638 qemu_fdt_add_subnode(fi->fdt, name->str); 639 qemu_fdt_setprop_cell(fi->fdt, name->str, "#interrupt-cells", 2); 640 qemu_fdt_setprop_cell(fi->fdt, name->str, "#size-cells", 0); 641 qemu_fdt_setprop_cell(fi->fdt, name->str, "#address-cells", 1); 642 qemu_fdt_setprop_string(fi->fdt, name->str, "interrupt-controller", ""); 643 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 644 cells[0] = cpu_to_be32(1); 645 cells[1] = cpu_to_be32(0x60); 646 cells[2] = cpu_to_be32(5); 647 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 648 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", ""); 649 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "8042"); 650 651 g_string_printf(name, "%s/serial@i2f8", fi->path); 652 qemu_fdt_add_subnode(fi->fdt, name->str); 653 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0); 654 cells[0] = cpu_to_be32(3); 655 cells[1] = 0; 656 qemu_fdt_setprop(fi->fdt, name->str, "interrupts", 657 cells, 2 * sizeof(cells[0])); 658 cells[0] = cpu_to_be32(1); 659 cells[1] = cpu_to_be32(0x2f8); 660 cells[2] = cpu_to_be32(8); 661 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0])); 662 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "serial"); 663 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "serial"); 664 665 g_string_free(name, TRUE); 666 } 667 668 static struct { 669 const char *id; 670 const char *name; 671 void (*dtf)(PCIBus *bus, PCIDevice *d, FDTInfo *fi); 672 } device_map[] = { 673 { "pci11ab,6460", "host", NULL }, 674 { "pci1106,8231", "isa", dt_isa }, 675 { "pci1106,571", "ide", dt_ide }, 676 { "pci1106,3044", "firewire", NULL }, 677 { "pci1106,3038", "usb", dt_usb }, 678 { "pci1106,8235", "other", NULL }, 679 { "pci1106,3058", "sound", NULL }, 680 { NULL, NULL } 681 }; 682 683 static void add_pci_device(PCIBus *bus, PCIDevice *d, void *opaque) 684 { 685 FDTInfo *fi = opaque; 686 GString *node = g_string_new(NULL); 687 uint32_t cells[(PCI_NUM_REGIONS + 1) * 5]; 688 int i, j; 689 const char *name = NULL; 690 g_autofree const gchar *pn = g_strdup_printf("pci%x,%x", 691 pci_get_word(&d->config[PCI_VENDOR_ID]), 692 pci_get_word(&d->config[PCI_DEVICE_ID])); 693 694 for (i = 0; device_map[i].id; i++) { 695 if (!strcmp(pn, device_map[i].id)) { 696 name = device_map[i].name; 697 break; 698 } 699 } 700 g_string_printf(node, "%s/%s@%x", fi->path, (name ?: pn), 701 PCI_SLOT(d->devfn)); 702 if (PCI_FUNC(d->devfn)) { 703 g_string_append_printf(node, ",%x", PCI_FUNC(d->devfn)); 704 } 705 706 qemu_fdt_add_subnode(fi->fdt, node->str); 707 if (device_map[i].dtf) { 708 FDTInfo cfi = { fi->fdt, node->str }; 709 device_map[i].dtf(bus, d, &cfi); 710 } 711 cells[0] = cpu_to_be32(d->devfn << 8); 712 cells[1] = 0; 713 cells[2] = 0; 714 cells[3] = 0; 715 cells[4] = 0; 716 j = 5; 717 for (i = 0; i < PCI_NUM_REGIONS; i++) { 718 if (!d->io_regions[i].size) { 719 continue; 720 } 721 cells[j] = cpu_to_be32(d->devfn << 8 | (PCI_BASE_ADDRESS_0 + i * 4)); 722 if (d->io_regions[i].type & PCI_BASE_ADDRESS_SPACE_IO) { 723 cells[j] |= cpu_to_be32(1 << 24); 724 } else { 725 cells[j] |= cpu_to_be32(2 << 24); 726 if (d->io_regions[i].type & PCI_BASE_ADDRESS_MEM_PREFETCH) { 727 cells[j] |= cpu_to_be32(4 << 28); 728 } 729 } 730 cells[j + 1] = 0; 731 cells[j + 2] = 0; 732 cells[j + 3] = cpu_to_be32(d->io_regions[i].size >> 32); 733 cells[j + 4] = cpu_to_be32(d->io_regions[i].size); 734 j += 5; 735 } 736 qemu_fdt_setprop(fi->fdt, node->str, "reg", cells, j * sizeof(cells[0])); 737 qemu_fdt_setprop_string(fi->fdt, node->str, "name", name ?: pn); 738 if (pci_get_byte(&d->config[PCI_INTERRUPT_PIN])) { 739 qemu_fdt_setprop_cell(fi->fdt, node->str, "interrupts", 740 pci_get_byte(&d->config[PCI_INTERRUPT_PIN])); 741 } 742 /* Pegasos2 firmware has subsystem-id amd subsystem-vendor-id swapped */ 743 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-vendor-id", 744 pci_get_word(&d->config[PCI_SUBSYSTEM_ID])); 745 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-id", 746 pci_get_word(&d->config[PCI_SUBSYSTEM_VENDOR_ID])); 747 cells[0] = pci_get_long(&d->config[PCI_CLASS_REVISION]); 748 qemu_fdt_setprop_cell(fi->fdt, node->str, "class-code", cells[0] >> 8); 749 qemu_fdt_setprop_cell(fi->fdt, node->str, "revision-id", cells[0] & 0xff); 750 qemu_fdt_setprop_cell(fi->fdt, node->str, "device-id", 751 pci_get_word(&d->config[PCI_DEVICE_ID])); 752 qemu_fdt_setprop_cell(fi->fdt, node->str, "vendor-id", 753 pci_get_word(&d->config[PCI_VENDOR_ID])); 754 755 g_string_free(node, TRUE); 756 } 757 758 static void *build_fdt(MachineState *machine, int *fdt_size) 759 { 760 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine); 761 PowerPCCPU *cpu = pm->cpu; 762 PCIBus *pci_bus; 763 FDTInfo fi; 764 uint32_t cells[16]; 765 void *fdt = create_device_tree(fdt_size); 766 767 fi.fdt = fdt; 768 769 /* root node */ 770 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,description", 771 "Pegasos CHRP PowerPC System"); 772 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,board", "Pegasos2"); 773 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,vendor", "bplan GmbH"); 774 qemu_fdt_setprop_string(fdt, "/", "revision", "2B"); 775 qemu_fdt_setprop_string(fdt, "/", "model", "Pegasos2"); 776 qemu_fdt_setprop_string(fdt, "/", "device_type", "chrp"); 777 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 1); 778 qemu_fdt_setprop_string(fdt, "/", "name", "bplan,Pegasos2"); 779 780 /* pci@c0000000 */ 781 qemu_fdt_add_subnode(fdt, "/pci@c0000000"); 782 cells[0] = 0; 783 cells[1] = 0; 784 qemu_fdt_setprop(fdt, "/pci@c0000000", "bus-range", 785 cells, 2 * sizeof(cells[0])); 786 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "pci-bridge-number", 1); 787 cells[0] = cpu_to_be32(PCI0_MEM_BASE); 788 cells[1] = cpu_to_be32(PCI0_MEM_SIZE); 789 qemu_fdt_setprop(fdt, "/pci@c0000000", "reg", cells, 2 * sizeof(cells[0])); 790 cells[0] = cpu_to_be32(0x01000000); 791 cells[1] = 0; 792 cells[2] = 0; 793 cells[3] = cpu_to_be32(PCI0_IO_BASE); 794 cells[4] = 0; 795 cells[5] = cpu_to_be32(PCI0_IO_SIZE); 796 cells[6] = cpu_to_be32(0x02000000); 797 cells[7] = 0; 798 cells[8] = cpu_to_be32(PCI0_MEM_BASE); 799 cells[9] = cpu_to_be32(PCI0_MEM_BASE); 800 cells[10] = 0; 801 cells[11] = cpu_to_be32(PCI0_MEM_SIZE); 802 qemu_fdt_setprop(fdt, "/pci@c0000000", "ranges", 803 cells, 12 * sizeof(cells[0])); 804 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#size-cells", 2); 805 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#address-cells", 3); 806 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "device_type", "pci"); 807 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "name", "pci"); 808 809 fi.path = "/pci@c0000000"; 810 pci_bus = mv64361_get_pci_bus(pm->mv, 0); 811 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi); 812 813 /* pci@80000000 */ 814 qemu_fdt_add_subnode(fdt, "/pci@80000000"); 815 cells[0] = 0; 816 cells[1] = 0; 817 qemu_fdt_setprop(fdt, "/pci@80000000", "bus-range", 818 cells, 2 * sizeof(cells[0])); 819 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "pci-bridge-number", 0); 820 cells[0] = cpu_to_be32(PCI1_MEM_BASE); 821 cells[1] = cpu_to_be32(PCI1_MEM_SIZE); 822 qemu_fdt_setprop(fdt, "/pci@80000000", "reg", cells, 2 * sizeof(cells[0])); 823 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "8259-interrupt-acknowledge", 824 0xf1000cb4); 825 cells[0] = cpu_to_be32(0x01000000); 826 cells[1] = 0; 827 cells[2] = 0; 828 cells[3] = cpu_to_be32(PCI1_IO_BASE); 829 cells[4] = 0; 830 cells[5] = cpu_to_be32(PCI1_IO_SIZE); 831 cells[6] = cpu_to_be32(0x02000000); 832 cells[7] = 0; 833 cells[8] = cpu_to_be32(PCI1_MEM_BASE); 834 cells[9] = cpu_to_be32(PCI1_MEM_BASE); 835 cells[10] = 0; 836 cells[11] = cpu_to_be32(PCI1_MEM_SIZE); 837 qemu_fdt_setprop(fdt, "/pci@80000000", "ranges", 838 cells, 12 * sizeof(cells[0])); 839 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#size-cells", 2); 840 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#address-cells", 3); 841 qemu_fdt_setprop_string(fdt, "/pci@80000000", "device_type", "pci"); 842 qemu_fdt_setprop_string(fdt, "/pci@80000000", "name", "pci"); 843 844 fi.path = "/pci@80000000"; 845 pci_bus = mv64361_get_pci_bus(pm->mv, 1); 846 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi); 847 848 qemu_fdt_add_subnode(fdt, "/failsafe"); 849 qemu_fdt_setprop_string(fdt, "/failsafe", "device_type", "serial"); 850 qemu_fdt_setprop_string(fdt, "/failsafe", "name", "failsafe"); 851 852 qemu_fdt_add_subnode(fdt, "/rtas"); 853 qemu_fdt_setprop_cell(fdt, "/rtas", "system-reboot", RTAS_SYSTEM_REBOOT); 854 qemu_fdt_setprop_cell(fdt, "/rtas", "hibernate", RTAS_HIBERNATE); 855 qemu_fdt_setprop_cell(fdt, "/rtas", "suspend", RTAS_SUSPEND); 856 qemu_fdt_setprop_cell(fdt, "/rtas", "power-off", RTAS_POWER_OFF); 857 qemu_fdt_setprop_cell(fdt, "/rtas", "set-indicator", RTAS_SET_INDICATOR); 858 qemu_fdt_setprop_cell(fdt, "/rtas", "display-character", 859 RTAS_DISPLAY_CHARACTER); 860 qemu_fdt_setprop_cell(fdt, "/rtas", "write-pci-config", 861 RTAS_WRITE_PCI_CONFIG); 862 qemu_fdt_setprop_cell(fdt, "/rtas", "read-pci-config", 863 RTAS_READ_PCI_CONFIG); 864 /* Pegasos2 firmware misspells check-exception and guests use that */ 865 qemu_fdt_setprop_cell(fdt, "/rtas", "check-execption", 866 RTAS_CHECK_EXCEPTION); 867 qemu_fdt_setprop_cell(fdt, "/rtas", "event-scan", RTAS_EVENT_SCAN); 868 qemu_fdt_setprop_cell(fdt, "/rtas", "set-time-of-day", 869 RTAS_SET_TIME_OF_DAY); 870 qemu_fdt_setprop_cell(fdt, "/rtas", "get-time-of-day", 871 RTAS_GET_TIME_OF_DAY); 872 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-store", RTAS_NVRAM_STORE); 873 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-fetch", RTAS_NVRAM_FETCH); 874 qemu_fdt_setprop_cell(fdt, "/rtas", "restart-rtas", RTAS_RESTART_RTAS); 875 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-error-log-max", 0); 876 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-event-scan-rate", 0); 877 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-display-device", 0); 878 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-size", 20); 879 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-version", 1); 880 881 /* cpus */ 882 qemu_fdt_add_subnode(fdt, "/cpus"); 883 qemu_fdt_setprop_cell(fdt, "/cpus", "#cpus", 1); 884 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1); 885 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0); 886 qemu_fdt_setprop_string(fdt, "/cpus", "name", "cpus"); 887 888 /* FIXME Get CPU name from CPU object */ 889 const char *cp = "/cpus/PowerPC,G4"; 890 qemu_fdt_add_subnode(fdt, cp); 891 qemu_fdt_setprop_cell(fdt, cp, "l2cr", 0); 892 qemu_fdt_setprop_cell(fdt, cp, "d-cache-size", 0x8000); 893 qemu_fdt_setprop_cell(fdt, cp, "d-cache-block-size", 894 cpu->env.dcache_line_size); 895 qemu_fdt_setprop_cell(fdt, cp, "d-cache-line-size", 896 cpu->env.dcache_line_size); 897 qemu_fdt_setprop_cell(fdt, cp, "i-cache-size", 0x8000); 898 qemu_fdt_setprop_cell(fdt, cp, "i-cache-block-size", 899 cpu->env.icache_line_size); 900 qemu_fdt_setprop_cell(fdt, cp, "i-cache-line-size", 901 cpu->env.icache_line_size); 902 if (cpu->env.id_tlbs) { 903 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-sets", cpu->env.nb_ways); 904 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-size", cpu->env.tlb_per_way); 905 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-sets", cpu->env.nb_ways); 906 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-size", cpu->env.tlb_per_way); 907 qemu_fdt_setprop_string(fdt, cp, "tlb-split", ""); 908 } 909 qemu_fdt_setprop_cell(fdt, cp, "tlb-sets", cpu->env.nb_ways); 910 qemu_fdt_setprop_cell(fdt, cp, "tlb-size", cpu->env.nb_tlb); 911 qemu_fdt_setprop_string(fdt, cp, "state", "running"); 912 if (cpu->env.insns_flags & PPC_ALTIVEC) { 913 qemu_fdt_setprop_string(fdt, cp, "altivec", ""); 914 qemu_fdt_setprop_string(fdt, cp, "data-streams", ""); 915 } 916 /* 917 * FIXME What flags do data-streams, external-control and 918 * performance-monitor depend on? 919 */ 920 qemu_fdt_setprop_string(fdt, cp, "external-control", ""); 921 if (cpu->env.insns_flags & PPC_FLOAT_FSQRT) { 922 qemu_fdt_setprop_string(fdt, cp, "general-purpose", ""); 923 } 924 qemu_fdt_setprop_string(fdt, cp, "performance-monitor", ""); 925 if (cpu->env.insns_flags & PPC_FLOAT_FRES) { 926 qemu_fdt_setprop_string(fdt, cp, "graphics", ""); 927 } 928 qemu_fdt_setprop_cell(fdt, cp, "reservation-granule-size", 4); 929 qemu_fdt_setprop_cell(fdt, cp, "timebase-frequency", 930 cpu->env.tb_env->tb_freq); 931 qemu_fdt_setprop_cell(fdt, cp, "bus-frequency", BUS_FREQ_HZ); 932 qemu_fdt_setprop_cell(fdt, cp, "clock-frequency", BUS_FREQ_HZ * 7.5); 933 qemu_fdt_setprop_cell(fdt, cp, "cpu-version", cpu->env.spr[SPR_PVR]); 934 cells[0] = 0; 935 cells[1] = 0; 936 qemu_fdt_setprop(fdt, cp, "reg", cells, 2 * sizeof(cells[0])); 937 qemu_fdt_setprop_string(fdt, cp, "device_type", "cpu"); 938 qemu_fdt_setprop_string(fdt, cp, "name", strrchr(cp, '/') + 1); 939 940 /* memory */ 941 qemu_fdt_add_subnode(fdt, "/memory@0"); 942 cells[0] = 0; 943 cells[1] = cpu_to_be32(machine->ram_size); 944 qemu_fdt_setprop(fdt, "/memory@0", "reg", cells, 2 * sizeof(cells[0])); 945 qemu_fdt_setprop_string(fdt, "/memory@0", "device_type", "memory"); 946 qemu_fdt_setprop_string(fdt, "/memory@0", "name", "memory"); 947 948 qemu_fdt_add_subnode(fdt, "/chosen"); 949 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", 950 machine->kernel_cmdline ?: ""); 951 qemu_fdt_setprop_string(fdt, "/chosen", "name", "chosen"); 952 953 qemu_fdt_add_subnode(fdt, "/openprom"); 954 qemu_fdt_setprop_string(fdt, "/openprom", "model", "Pegasos2,1.1"); 955 956 return fdt; 957 } 958