1 /* 2 * QEMU PC System Emulator 3 * 4 * Copyright (c) 2003-2004 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 27 #include "hw/hw.h" 28 #include "hw/loader.h" 29 #include "hw/i386/pc.h" 30 #include "hw/i386/apic.h" 31 #include "hw/display/ramfb.h" 32 #include "hw/smbios/smbios.h" 33 #include "hw/pci/pci.h" 34 #include "hw/pci/pci_ids.h" 35 #include "hw/usb.h" 36 #include "net/net.h" 37 #include "hw/boards.h" 38 #include "hw/ide.h" 39 #include "sysemu/kvm.h" 40 #include "hw/kvm/clock.h" 41 #include "sysemu/sysemu.h" 42 #include "hw/sysbus.h" 43 #include "sysemu/arch_init.h" 44 #include "hw/i2c/smbus.h" 45 #include "hw/xen/xen.h" 46 #include "exec/memory.h" 47 #include "exec/address-spaces.h" 48 #include "hw/acpi/acpi.h" 49 #include "cpu.h" 50 #include "qapi/error.h" 51 #include "qemu/error-report.h" 52 #ifdef CONFIG_XEN 53 #include <xen/hvm/hvm_info_table.h> 54 #include "hw/xen/xen_pt.h" 55 #endif 56 #include "migration/global_state.h" 57 #include "migration/misc.h" 58 #include "kvm_i386.h" 59 #include "sysemu/numa.h" 60 61 #define MAX_IDE_BUS 2 62 63 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; 64 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; 65 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; 66 67 /* PC hardware initialisation */ 68 static void pc_init1(MachineState *machine, 69 const char *host_type, const char *pci_type) 70 { 71 PCMachineState *pcms = PC_MACHINE(machine); 72 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 73 MemoryRegion *system_memory = get_system_memory(); 74 MemoryRegion *system_io = get_system_io(); 75 int i; 76 PCIBus *pci_bus; 77 ISABus *isa_bus; 78 PCII440FXState *i440fx_state; 79 int piix3_devfn = -1; 80 qemu_irq *i8259; 81 qemu_irq smi_irq; 82 GSIState *gsi_state; 83 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 84 BusState *idebus[MAX_IDE_BUS]; 85 ISADevice *rtc_state; 86 MemoryRegion *ram_memory; 87 MemoryRegion *pci_memory; 88 MemoryRegion *rom_memory; 89 ram_addr_t lowmem; 90 91 /* 92 * Calculate ram split, for memory below and above 4G. It's a bit 93 * complicated for backward compatibility reasons ... 94 * 95 * - Traditional split is 3.5G (lowmem = 0xe0000000). This is the 96 * default value for max_ram_below_4g now. 97 * 98 * - Then, to gigabyte align the memory, we move the split to 3G 99 * (lowmem = 0xc0000000). But only in case we have to split in 100 * the first place, i.e. ram_size is larger than (traditional) 101 * lowmem. And for new machine types (gigabyte_align = true) 102 * only, for live migration compatibility reasons. 103 * 104 * - Next the max-ram-below-4g option was added, which allowed to 105 * reduce lowmem to a smaller value, to allow a larger PCI I/O 106 * window below 4G. qemu doesn't enforce gigabyte alignment here, 107 * but prints a warning. 108 * 109 * - Finally max-ram-below-4g got updated to also allow raising lowmem, 110 * so legacy non-PAE guests can get as much memory as possible in 111 * the 32bit address space below 4G. 112 * 113 * - Note that Xen has its own ram setp code in xen_ram_init(), 114 * called via xen_hvm_init(). 115 * 116 * Examples: 117 * qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high 118 * qemu -M pc -m 4G (new default) -> 3072M low, 1024M high 119 * qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high 120 * qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M) 121 */ 122 if (xen_enabled()) { 123 xen_hvm_init(pcms, &ram_memory); 124 } else { 125 if (!pcms->max_ram_below_4g) { 126 pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */ 127 } 128 lowmem = pcms->max_ram_below_4g; 129 if (machine->ram_size >= pcms->max_ram_below_4g) { 130 if (pcmc->gigabyte_align) { 131 if (lowmem > 0xc0000000) { 132 lowmem = 0xc0000000; 133 } 134 if (lowmem & ((1ULL << 30) - 1)) { 135 warn_report("Large machine and max_ram_below_4g " 136 "(%" PRIu64 ") not a multiple of 1G; " 137 "possible bad performance.", 138 pcms->max_ram_below_4g); 139 } 140 } 141 } 142 143 if (machine->ram_size >= lowmem) { 144 pcms->above_4g_mem_size = machine->ram_size - lowmem; 145 pcms->below_4g_mem_size = lowmem; 146 } else { 147 pcms->above_4g_mem_size = 0; 148 pcms->below_4g_mem_size = machine->ram_size; 149 } 150 } 151 152 pc_cpus_init(pcms); 153 154 if (kvm_enabled() && pcmc->kvmclock_enabled) { 155 kvmclock_create(); 156 } 157 158 if (pcmc->pci_enabled) { 159 pci_memory = g_new(MemoryRegion, 1); 160 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 161 rom_memory = pci_memory; 162 } else { 163 pci_memory = NULL; 164 rom_memory = system_memory; 165 } 166 167 pc_guest_info_init(pcms); 168 169 if (pcmc->smbios_defaults) { 170 MachineClass *mc = MACHINE_GET_CLASS(machine); 171 /* These values are guest ABI, do not change */ 172 smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)", 173 mc->name, pcmc->smbios_legacy_mode, 174 pcmc->smbios_uuid_encoded, 175 SMBIOS_ENTRY_POINT_21); 176 } 177 178 /* allocate ram and load rom/bios */ 179 if (!xen_enabled()) { 180 pc_memory_init(pcms, system_memory, 181 rom_memory, &ram_memory); 182 } else if (machine->kernel_filename != NULL) { 183 /* For xen HVM direct kernel boot, load linux here */ 184 xen_load_linux(pcms); 185 } 186 187 gsi_state = g_malloc0(sizeof(*gsi_state)); 188 if (kvm_ioapic_in_kernel()) { 189 kvm_pc_setup_irq_routing(pcmc->pci_enabled); 190 pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 191 GSI_NUM_PINS); 192 } else { 193 pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 194 } 195 196 if (pcmc->pci_enabled) { 197 pci_bus = i440fx_init(host_type, 198 pci_type, 199 &i440fx_state, &piix3_devfn, &isa_bus, pcms->gsi, 200 system_memory, system_io, machine->ram_size, 201 pcms->below_4g_mem_size, 202 pcms->above_4g_mem_size, 203 pci_memory, ram_memory); 204 pcms->bus = pci_bus; 205 } else { 206 pci_bus = NULL; 207 i440fx_state = NULL; 208 isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, 209 &error_abort); 210 no_hpet = 1; 211 } 212 isa_bus_irqs(isa_bus, pcms->gsi); 213 214 if (kvm_pic_in_kernel()) { 215 i8259 = kvm_i8259_init(isa_bus); 216 } else if (xen_enabled()) { 217 i8259 = xen_interrupt_controller_init(); 218 } else { 219 i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq()); 220 } 221 222 for (i = 0; i < ISA_NUM_IRQS; i++) { 223 gsi_state->i8259_irq[i] = i8259[i]; 224 } 225 g_free(i8259); 226 if (pcmc->pci_enabled) { 227 ioapic_init_gsi(gsi_state, "i440fx"); 228 } 229 230 pc_register_ferr_irq(pcms->gsi[13]); 231 232 pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL); 233 234 assert(pcms->vmport != ON_OFF_AUTO__MAX); 235 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 236 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 237 } 238 239 /* init basic PC hardware */ 240 pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, true, 241 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit, 0x4); 242 243 pc_nic_init(pcmc, isa_bus, pci_bus); 244 245 ide_drive_get(hd, ARRAY_SIZE(hd)); 246 if (pcmc->pci_enabled) { 247 PCIDevice *dev; 248 if (xen_enabled()) { 249 dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1); 250 } else { 251 dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1); 252 } 253 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); 254 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); 255 } else { 256 for(i = 0; i < MAX_IDE_BUS; i++) { 257 ISADevice *dev; 258 char busname[] = "ide.0"; 259 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], 260 ide_irq[i], 261 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); 262 /* 263 * The ide bus name is ide.0 for the first bus and ide.1 for the 264 * second one. 265 */ 266 busname[4] = '0' + i; 267 idebus[i] = qdev_get_child_bus(DEVICE(dev), busname); 268 } 269 } 270 271 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 272 273 if (pcmc->pci_enabled && machine_usb(machine)) { 274 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci"); 275 } 276 277 if (pcmc->pci_enabled && acpi_enabled) { 278 DeviceState *piix4_pm; 279 I2CBus *smbus; 280 281 smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0); 282 /* TODO: Populate SPD eeprom data. */ 283 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, 284 pcms->gsi[9], smi_irq, 285 pc_machine_is_smm_enabled(pcms), 286 &piix4_pm); 287 smbus_eeprom_init(smbus, 8, NULL, 0); 288 289 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 290 TYPE_HOTPLUG_HANDLER, 291 (Object **)&pcms->acpi_dev, 292 object_property_allow_set_link, 293 OBJ_PROP_LINK_STRONG, &error_abort); 294 object_property_set_link(OBJECT(machine), OBJECT(piix4_pm), 295 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort); 296 } 297 298 if (pcms->acpi_nvdimm_state.is_enabled) { 299 nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io, 300 pcms->fw_cfg, OBJECT(pcms)); 301 } 302 } 303 304 /* Looking for a pc_compat_2_4() function? It doesn't exist. 305 * pc_compat_*() functions that run on machine-init time and 306 * change global QEMU state are deprecated. Please don't create 307 * one, and implement any pc-*-2.4 (and newer) compat code in 308 * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options(). 309 */ 310 311 static void pc_compat_2_3(MachineState *machine) 312 { 313 PCMachineState *pcms = PC_MACHINE(machine); 314 if (kvm_enabled()) { 315 pcms->smm = ON_OFF_AUTO_OFF; 316 } 317 } 318 319 static void pc_compat_2_2(MachineState *machine) 320 { 321 pc_compat_2_3(machine); 322 machine->suppress_vmdesc = true; 323 } 324 325 static void pc_compat_2_1(MachineState *machine) 326 { 327 pc_compat_2_2(machine); 328 x86_cpu_change_kvm_default("svm", NULL); 329 } 330 331 static void pc_compat_2_0(MachineState *machine) 332 { 333 pc_compat_2_1(machine); 334 } 335 336 static void pc_compat_1_7(MachineState *machine) 337 { 338 pc_compat_2_0(machine); 339 x86_cpu_change_kvm_default("x2apic", NULL); 340 } 341 342 static void pc_compat_1_6(MachineState *machine) 343 { 344 pc_compat_1_7(machine); 345 } 346 347 static void pc_compat_1_5(MachineState *machine) 348 { 349 pc_compat_1_6(machine); 350 } 351 352 static void pc_compat_1_4(MachineState *machine) 353 { 354 pc_compat_1_5(machine); 355 } 356 357 static void pc_compat_1_3(MachineState *machine) 358 { 359 pc_compat_1_4(machine); 360 enable_compat_apic_id_mode(); 361 } 362 363 /* PC compat function for pc-0.14 to pc-1.2 */ 364 static void pc_compat_1_2(MachineState *machine) 365 { 366 pc_compat_1_3(machine); 367 x86_cpu_change_kvm_default("kvm-pv-eoi", NULL); 368 } 369 370 /* PC compat function for pc-0.10 to pc-0.13 */ 371 static void pc_compat_0_13(MachineState *machine) 372 { 373 pc_compat_1_2(machine); 374 } 375 376 static void pc_init_isa(MachineState *machine) 377 { 378 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); 379 } 380 381 #ifdef CONFIG_XEN 382 static void pc_xen_hvm_init_pci(MachineState *machine) 383 { 384 const char *pci_type = has_igd_gfx_passthru ? 385 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE; 386 387 pc_init1(machine, 388 TYPE_I440FX_PCI_HOST_BRIDGE, 389 pci_type); 390 } 391 392 static void pc_xen_hvm_init(MachineState *machine) 393 { 394 PCMachineState *pcms = PC_MACHINE(machine); 395 396 if (!xen_enabled()) { 397 error_report("xenfv machine requires the xen accelerator"); 398 exit(1); 399 } 400 401 pc_xen_hvm_init_pci(machine); 402 pci_create_simple(pcms->bus, -1, "xen-platform"); 403 } 404 #endif 405 406 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \ 407 static void pc_init_##suffix(MachineState *machine) \ 408 { \ 409 void (*compat)(MachineState *m) = (compatfn); \ 410 if (compat) { \ 411 compat(machine); \ 412 } \ 413 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \ 414 TYPE_I440FX_PCI_DEVICE); \ 415 } \ 416 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 417 418 static void pc_i440fx_machine_options(MachineClass *m) 419 { 420 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 421 pcmc->default_nic_model = "e1000"; 422 423 m->family = "pc_piix"; 424 m->desc = "Standard PC (i440FX + PIIX, 1996)"; 425 m->default_machine_opts = "firmware=bios-256k.bin"; 426 m->default_display = "std"; 427 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); 428 } 429 430 static void pc_i440fx_3_0_machine_options(MachineClass *m) 431 { 432 pc_i440fx_machine_options(m); 433 m->alias = "pc"; 434 m->is_default = 1; 435 } 436 437 DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL, 438 pc_i440fx_3_0_machine_options); 439 440 static void pc_i440fx_2_12_machine_options(MachineClass *m) 441 { 442 pc_i440fx_3_0_machine_options(m); 443 m->is_default = 0; 444 m->alias = NULL; 445 SET_MACHINE_COMPAT(m, PC_COMPAT_2_12); 446 } 447 448 DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL, 449 pc_i440fx_2_12_machine_options); 450 451 static void pc_i440fx_2_11_machine_options(MachineClass *m) 452 { 453 pc_i440fx_2_12_machine_options(m); 454 SET_MACHINE_COMPAT(m, PC_COMPAT_2_11); 455 } 456 457 DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL, 458 pc_i440fx_2_11_machine_options); 459 460 static void pc_i440fx_2_10_machine_options(MachineClass *m) 461 { 462 pc_i440fx_2_11_machine_options(m); 463 SET_MACHINE_COMPAT(m, PC_COMPAT_2_10); 464 m->auto_enable_numa_with_memhp = false; 465 } 466 467 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL, 468 pc_i440fx_2_10_machine_options); 469 470 static void pc_i440fx_2_9_machine_options(MachineClass *m) 471 { 472 pc_i440fx_2_10_machine_options(m); 473 SET_MACHINE_COMPAT(m, PC_COMPAT_2_9); 474 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 475 } 476 477 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL, 478 pc_i440fx_2_9_machine_options); 479 480 static void pc_i440fx_2_8_machine_options(MachineClass *m) 481 { 482 pc_i440fx_2_9_machine_options(m); 483 SET_MACHINE_COMPAT(m, PC_COMPAT_2_8); 484 } 485 486 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL, 487 pc_i440fx_2_8_machine_options); 488 489 490 static void pc_i440fx_2_7_machine_options(MachineClass *m) 491 { 492 pc_i440fx_2_8_machine_options(m); 493 SET_MACHINE_COMPAT(m, PC_COMPAT_2_7); 494 } 495 496 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL, 497 pc_i440fx_2_7_machine_options); 498 499 500 static void pc_i440fx_2_6_machine_options(MachineClass *m) 501 { 502 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 503 pc_i440fx_2_7_machine_options(m); 504 pcmc->legacy_cpu_hotplug = true; 505 pcmc->linuxboot_dma_enabled = false; 506 SET_MACHINE_COMPAT(m, PC_COMPAT_2_6); 507 } 508 509 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL, 510 pc_i440fx_2_6_machine_options); 511 512 513 static void pc_i440fx_2_5_machine_options(MachineClass *m) 514 { 515 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 516 pc_i440fx_2_6_machine_options(m); 517 pcmc->save_tsc_khz = false; 518 m->legacy_fw_cfg_order = 1; 519 SET_MACHINE_COMPAT(m, PC_COMPAT_2_5); 520 } 521 522 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL, 523 pc_i440fx_2_5_machine_options); 524 525 526 static void pc_i440fx_2_4_machine_options(MachineClass *m) 527 { 528 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 529 pc_i440fx_2_5_machine_options(m); 530 m->hw_version = "2.4.0"; 531 pcmc->broken_reserved_end = true; 532 SET_MACHINE_COMPAT(m, PC_COMPAT_2_4); 533 } 534 535 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL, 536 pc_i440fx_2_4_machine_options) 537 538 539 static void pc_i440fx_2_3_machine_options(MachineClass *m) 540 { 541 pc_i440fx_2_4_machine_options(m); 542 m->hw_version = "2.3.0"; 543 SET_MACHINE_COMPAT(m, PC_COMPAT_2_3); 544 } 545 546 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3, 547 pc_i440fx_2_3_machine_options); 548 549 550 static void pc_i440fx_2_2_machine_options(MachineClass *m) 551 { 552 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 553 pc_i440fx_2_3_machine_options(m); 554 m->hw_version = "2.2.0"; 555 SET_MACHINE_COMPAT(m, PC_COMPAT_2_2); 556 pcmc->rsdp_in_ram = false; 557 } 558 559 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2, 560 pc_i440fx_2_2_machine_options); 561 562 563 static void pc_i440fx_2_1_machine_options(MachineClass *m) 564 { 565 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 566 pc_i440fx_2_2_machine_options(m); 567 m->hw_version = "2.1.0"; 568 m->default_display = NULL; 569 SET_MACHINE_COMPAT(m, PC_COMPAT_2_1); 570 pcmc->smbios_uuid_encoded = false; 571 pcmc->enforce_aligned_dimm = false; 572 } 573 574 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1, 575 pc_i440fx_2_1_machine_options); 576 577 578 579 static void pc_i440fx_2_0_machine_options(MachineClass *m) 580 { 581 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 582 pc_i440fx_2_1_machine_options(m); 583 m->hw_version = "2.0.0"; 584 SET_MACHINE_COMPAT(m, PC_COMPAT_2_0); 585 pcmc->smbios_legacy_mode = true; 586 pcmc->has_reserved_memory = false; 587 /* This value depends on the actual DSDT and SSDT compiled into 588 * the source QEMU; unfortunately it depends on the binary and 589 * not on the machine type, so we cannot make pc-i440fx-1.7 work on 590 * both QEMU 1.7 and QEMU 2.0. 591 * 592 * Large variations cause migration to fail for more than one 593 * consecutive value of the "-smp" maxcpus option. 594 * 595 * For small variations of the kind caused by different iasl versions, 596 * the 4k rounding usually leaves slack. However, there could be still 597 * one or two values that break. For QEMU 1.7 and QEMU 2.0 the 598 * slack is only ~10 bytes before one "-smp maxcpus" value breaks! 599 * 600 * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on 601 * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. 602 */ 603 pcmc->legacy_acpi_table_size = 6652; 604 pcmc->acpi_data_size = 0x10000; 605 } 606 607 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0, 608 pc_i440fx_2_0_machine_options); 609 610 611 static void pc_i440fx_1_7_machine_options(MachineClass *m) 612 { 613 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 614 pc_i440fx_2_0_machine_options(m); 615 m->hw_version = "1.7.0"; 616 m->default_machine_opts = NULL; 617 m->option_rom_has_mr = true; 618 SET_MACHINE_COMPAT(m, PC_COMPAT_1_7); 619 pcmc->smbios_defaults = false; 620 pcmc->gigabyte_align = false; 621 pcmc->legacy_acpi_table_size = 6414; 622 } 623 624 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7, 625 pc_i440fx_1_7_machine_options); 626 627 628 static void pc_i440fx_1_6_machine_options(MachineClass *m) 629 { 630 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 631 pc_i440fx_1_7_machine_options(m); 632 m->hw_version = "1.6.0"; 633 m->rom_file_has_mr = false; 634 SET_MACHINE_COMPAT(m, PC_COMPAT_1_6); 635 pcmc->has_acpi_build = false; 636 } 637 638 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6, 639 pc_i440fx_1_6_machine_options); 640 641 642 static void pc_i440fx_1_5_machine_options(MachineClass *m) 643 { 644 pc_i440fx_1_6_machine_options(m); 645 m->hw_version = "1.5.0"; 646 SET_MACHINE_COMPAT(m, PC_COMPAT_1_5); 647 } 648 649 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5, 650 pc_i440fx_1_5_machine_options); 651 652 653 static void pc_i440fx_1_4_machine_options(MachineClass *m) 654 { 655 pc_i440fx_1_5_machine_options(m); 656 m->hw_version = "1.4.0"; 657 m->hot_add_cpu = NULL; 658 SET_MACHINE_COMPAT(m, PC_COMPAT_1_4); 659 } 660 661 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4, 662 pc_i440fx_1_4_machine_options); 663 664 665 #define PC_COMPAT_1_3 \ 666 PC_CPU_MODEL_IDS("1.3.0") \ 667 {\ 668 .driver = "usb-tablet",\ 669 .property = "usb_version",\ 670 .value = stringify(1),\ 671 },{\ 672 .driver = "virtio-net-pci",\ 673 .property = "ctrl_mac_addr",\ 674 .value = "off", \ 675 },{ \ 676 .driver = "virtio-net-pci", \ 677 .property = "mq", \ 678 .value = "off", \ 679 }, {\ 680 .driver = "e1000",\ 681 .property = "autonegotiation",\ 682 .value = "off",\ 683 }, 684 685 686 static void pc_i440fx_1_3_machine_options(MachineClass *m) 687 { 688 pc_i440fx_1_4_machine_options(m); 689 m->hw_version = "1.3.0"; 690 SET_MACHINE_COMPAT(m, PC_COMPAT_1_3); 691 } 692 693 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3, 694 pc_i440fx_1_3_machine_options); 695 696 697 #define PC_COMPAT_1_2 \ 698 PC_CPU_MODEL_IDS("1.2.0") \ 699 {\ 700 .driver = "nec-usb-xhci",\ 701 .property = "msi",\ 702 .value = "off",\ 703 },{\ 704 .driver = "nec-usb-xhci",\ 705 .property = "msix",\ 706 .value = "off",\ 707 },{\ 708 .driver = "ivshmem",\ 709 .property = "use64",\ 710 .value = "0",\ 711 },{\ 712 .driver = "qxl",\ 713 .property = "revision",\ 714 .value = stringify(3),\ 715 },{\ 716 .driver = "qxl-vga",\ 717 .property = "revision",\ 718 .value = stringify(3),\ 719 },{\ 720 .driver = "VGA",\ 721 .property = "mmio",\ 722 .value = "off",\ 723 }, 724 725 static void pc_i440fx_1_2_machine_options(MachineClass *m) 726 { 727 pc_i440fx_1_3_machine_options(m); 728 m->hw_version = "1.2.0"; 729 SET_MACHINE_COMPAT(m, PC_COMPAT_1_2); 730 } 731 732 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2, 733 pc_i440fx_1_2_machine_options); 734 735 736 #define PC_COMPAT_1_1 \ 737 PC_CPU_MODEL_IDS("1.1.0") \ 738 {\ 739 .driver = "virtio-scsi-pci",\ 740 .property = "hotplug",\ 741 .value = "off",\ 742 },{\ 743 .driver = "virtio-scsi-pci",\ 744 .property = "param_change",\ 745 .value = "off",\ 746 },{\ 747 .driver = "VGA",\ 748 .property = "vgamem_mb",\ 749 .value = stringify(8),\ 750 },{\ 751 .driver = "vmware-svga",\ 752 .property = "vgamem_mb",\ 753 .value = stringify(8),\ 754 },{\ 755 .driver = "qxl-vga",\ 756 .property = "vgamem_mb",\ 757 .value = stringify(8),\ 758 },{\ 759 .driver = "qxl",\ 760 .property = "vgamem_mb",\ 761 .value = stringify(8),\ 762 },{\ 763 .driver = "virtio-blk-pci",\ 764 .property = "config-wce",\ 765 .value = "off",\ 766 }, 767 768 static void pc_i440fx_1_1_machine_options(MachineClass *m) 769 { 770 pc_i440fx_1_2_machine_options(m); 771 m->hw_version = "1.1.0"; 772 SET_MACHINE_COMPAT(m, PC_COMPAT_1_1); 773 } 774 775 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2, 776 pc_i440fx_1_1_machine_options); 777 778 779 #define PC_COMPAT_1_0 \ 780 PC_CPU_MODEL_IDS("1.0") \ 781 {\ 782 .driver = TYPE_ISA_FDC,\ 783 .property = "check_media_rate",\ 784 .value = "off",\ 785 }, {\ 786 .driver = "virtio-balloon-pci",\ 787 .property = "class",\ 788 .value = stringify(PCI_CLASS_MEMORY_RAM),\ 789 },{\ 790 .driver = "apic-common",\ 791 .property = "vapic",\ 792 .value = "off",\ 793 },{\ 794 .driver = TYPE_USB_DEVICE,\ 795 .property = "full-path",\ 796 .value = "no",\ 797 }, 798 799 static void pc_i440fx_1_0_machine_options(MachineClass *m) 800 { 801 pc_i440fx_1_1_machine_options(m); 802 m->hw_version = "1.0"; 803 SET_MACHINE_COMPAT(m, PC_COMPAT_1_0); 804 } 805 806 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2, 807 pc_i440fx_1_0_machine_options); 808 809 810 #define PC_COMPAT_0_15 \ 811 PC_CPU_MODEL_IDS("0.15") 812 813 static void pc_i440fx_0_15_machine_options(MachineClass *m) 814 { 815 pc_i440fx_1_0_machine_options(m); 816 m->hw_version = "0.15"; 817 SET_MACHINE_COMPAT(m, PC_COMPAT_0_15); 818 } 819 820 DEFINE_I440FX_MACHINE(v0_15, "pc-0.15", pc_compat_1_2, 821 pc_i440fx_0_15_machine_options); 822 823 824 #define PC_COMPAT_0_14 \ 825 PC_CPU_MODEL_IDS("0.14") \ 826 {\ 827 .driver = "virtio-blk-pci",\ 828 .property = "event_idx",\ 829 .value = "off",\ 830 },{\ 831 .driver = "virtio-serial-pci",\ 832 .property = "event_idx",\ 833 .value = "off",\ 834 },{\ 835 .driver = "virtio-net-pci",\ 836 .property = "event_idx",\ 837 .value = "off",\ 838 },{\ 839 .driver = "virtio-balloon-pci",\ 840 .property = "event_idx",\ 841 .value = "off",\ 842 },{\ 843 .driver = "qxl",\ 844 .property = "revision",\ 845 .value = stringify(2),\ 846 },{\ 847 .driver = "qxl-vga",\ 848 .property = "revision",\ 849 .value = stringify(2),\ 850 }, 851 852 static void pc_i440fx_0_14_machine_options(MachineClass *m) 853 { 854 pc_i440fx_0_15_machine_options(m); 855 m->hw_version = "0.14"; 856 SET_MACHINE_COMPAT(m, PC_COMPAT_0_14); 857 } 858 859 DEFINE_I440FX_MACHINE(v0_14, "pc-0.14", pc_compat_1_2, 860 pc_i440fx_0_14_machine_options); 861 862 863 #define PC_COMPAT_0_13 \ 864 PC_CPU_MODEL_IDS("0.13") \ 865 {\ 866 .driver = TYPE_PCI_DEVICE,\ 867 .property = "command_serr_enable",\ 868 .value = "off",\ 869 },{\ 870 .driver = "AC97",\ 871 .property = "use_broken_id",\ 872 .value = stringify(1),\ 873 },{\ 874 .driver = "virtio-9p-pci",\ 875 .property = "vectors",\ 876 .value = stringify(0),\ 877 },{\ 878 .driver = "VGA",\ 879 .property = "rombar",\ 880 .value = stringify(0),\ 881 },{\ 882 .driver = "vmware-svga",\ 883 .property = "rombar",\ 884 .value = stringify(0),\ 885 }, 886 887 static void pc_i440fx_0_13_machine_options(MachineClass *m) 888 { 889 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 890 pc_i440fx_0_14_machine_options(m); 891 m->hw_version = "0.13"; 892 SET_MACHINE_COMPAT(m, PC_COMPAT_0_13); 893 pcmc->kvmclock_enabled = false; 894 } 895 896 DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13, 897 pc_i440fx_0_13_machine_options); 898 899 900 #define PC_COMPAT_0_12 \ 901 PC_CPU_MODEL_IDS("0.12") \ 902 {\ 903 .driver = "virtio-serial-pci",\ 904 .property = "max_ports",\ 905 .value = stringify(1),\ 906 },{\ 907 .driver = "virtio-serial-pci",\ 908 .property = "vectors",\ 909 .value = stringify(0),\ 910 },{\ 911 .driver = "usb-mouse",\ 912 .property = "serial",\ 913 .value = "1",\ 914 },{\ 915 .driver = "usb-tablet",\ 916 .property = "serial",\ 917 .value = "1",\ 918 },{\ 919 .driver = "usb-kbd",\ 920 .property = "serial",\ 921 .value = "1",\ 922 }, 923 924 static void pc_i440fx_0_12_machine_options(MachineClass *m) 925 { 926 pc_i440fx_0_13_machine_options(m); 927 m->hw_version = "0.12"; 928 SET_MACHINE_COMPAT(m, PC_COMPAT_0_12); 929 } 930 931 DEFINE_I440FX_MACHINE(v0_12, "pc-0.12", pc_compat_0_13, 932 pc_i440fx_0_12_machine_options); 933 934 935 #define PC_COMPAT_0_11 \ 936 PC_CPU_MODEL_IDS("0.11") \ 937 {\ 938 .driver = "virtio-blk-pci",\ 939 .property = "vectors",\ 940 .value = stringify(0),\ 941 },{\ 942 .driver = TYPE_PCI_DEVICE,\ 943 .property = "rombar",\ 944 .value = stringify(0),\ 945 },{\ 946 .driver = "ide-drive",\ 947 .property = "ver",\ 948 .value = "0.11",\ 949 },{\ 950 .driver = "scsi-disk",\ 951 .property = "ver",\ 952 .value = "0.11",\ 953 }, 954 955 static void pc_i440fx_0_11_machine_options(MachineClass *m) 956 { 957 pc_i440fx_0_12_machine_options(m); 958 m->hw_version = "0.11"; 959 m->deprecation_reason = "use a newer machine type instead"; 960 SET_MACHINE_COMPAT(m, PC_COMPAT_0_11); 961 } 962 963 DEFINE_I440FX_MACHINE(v0_11, "pc-0.11", pc_compat_0_13, 964 pc_i440fx_0_11_machine_options); 965 966 967 #define PC_COMPAT_0_10 \ 968 PC_CPU_MODEL_IDS("0.10") \ 969 {\ 970 .driver = "virtio-blk-pci",\ 971 .property = "class",\ 972 .value = stringify(PCI_CLASS_STORAGE_OTHER),\ 973 },{\ 974 .driver = "virtio-serial-pci",\ 975 .property = "class",\ 976 .value = stringify(PCI_CLASS_DISPLAY_OTHER),\ 977 },{\ 978 .driver = "virtio-net-pci",\ 979 .property = "vectors",\ 980 .value = stringify(0),\ 981 },{\ 982 .driver = "ide-drive",\ 983 .property = "ver",\ 984 .value = "0.10",\ 985 },{\ 986 .driver = "scsi-disk",\ 987 .property = "ver",\ 988 .value = "0.10",\ 989 }, 990 991 static void pc_i440fx_0_10_machine_options(MachineClass *m) 992 { 993 pc_i440fx_0_11_machine_options(m); 994 m->hw_version = "0.10"; 995 SET_MACHINE_COMPAT(m, PC_COMPAT_0_10); 996 } 997 998 DEFINE_I440FX_MACHINE(v0_10, "pc-0.10", pc_compat_0_13, 999 pc_i440fx_0_10_machine_options); 1000 1001 typedef struct { 1002 uint16_t gpu_device_id; 1003 uint16_t pch_device_id; 1004 uint8_t pch_revision_id; 1005 } IGDDeviceIDInfo; 1006 1007 /* In real world different GPU should have different PCH. But actually 1008 * the different PCH DIDs likely map to different PCH SKUs. We do the 1009 * same thing for the GPU. For PCH, the different SKUs are going to be 1010 * all the same silicon design and implementation, just different 1011 * features turn on and off with fuses. The SW interfaces should be 1012 * consistent across all SKUs in a given family (eg LPT). But just same 1013 * features may not be supported. 1014 * 1015 * Most of these different PCH features probably don't matter to the 1016 * Gfx driver, but obviously any difference in display port connections 1017 * will so it should be fine with any PCH in case of passthrough. 1018 * 1019 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell) 1020 * scenarios, 0x9cc3 for BDW(Broadwell). 1021 */ 1022 static const IGDDeviceIDInfo igd_combo_id_infos[] = { 1023 /* HSW Classic */ 1024 {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */ 1025 {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */ 1026 {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */ 1027 {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */ 1028 {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */ 1029 /* HSW ULT */ 1030 {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */ 1031 {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */ 1032 {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */ 1033 {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */ 1034 {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */ 1035 {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */ 1036 /* HSW CRW */ 1037 {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */ 1038 {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */ 1039 /* HSW Server */ 1040 {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */ 1041 /* HSW SRVR */ 1042 {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */ 1043 /* BSW */ 1044 {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */ 1045 {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */ 1046 {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */ 1047 {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */ 1048 {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */ 1049 {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */ 1050 {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */ 1051 {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */ 1052 {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */ 1053 {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */ 1054 {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */ 1055 }; 1056 1057 static void isa_bridge_class_init(ObjectClass *klass, void *data) 1058 { 1059 DeviceClass *dc = DEVICE_CLASS(klass); 1060 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 1061 1062 dc->desc = "ISA bridge faked to support IGD PT"; 1063 k->vendor_id = PCI_VENDOR_ID_INTEL; 1064 k->class_id = PCI_CLASS_BRIDGE_ISA; 1065 }; 1066 1067 static TypeInfo isa_bridge_info = { 1068 .name = "igd-passthrough-isa-bridge", 1069 .parent = TYPE_PCI_DEVICE, 1070 .instance_size = sizeof(PCIDevice), 1071 .class_init = isa_bridge_class_init, 1072 .interfaces = (InterfaceInfo[]) { 1073 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 1074 { }, 1075 }, 1076 }; 1077 1078 static void pt_graphics_register_types(void) 1079 { 1080 type_register_static(&isa_bridge_info); 1081 } 1082 type_init(pt_graphics_register_types) 1083 1084 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id) 1085 { 1086 struct PCIDevice *bridge_dev; 1087 int i, num; 1088 uint16_t pch_dev_id = 0xffff; 1089 uint8_t pch_rev_id; 1090 1091 num = ARRAY_SIZE(igd_combo_id_infos); 1092 for (i = 0; i < num; i++) { 1093 if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) { 1094 pch_dev_id = igd_combo_id_infos[i].pch_device_id; 1095 pch_rev_id = igd_combo_id_infos[i].pch_revision_id; 1096 } 1097 } 1098 1099 if (pch_dev_id == 0xffff) { 1100 return; 1101 } 1102 1103 /* Currently IGD drivers always need to access PCH by 1f.0. */ 1104 bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), 1105 "igd-passthrough-isa-bridge"); 1106 1107 /* 1108 * Note that vendor id is always PCI_VENDOR_ID_INTEL. 1109 */ 1110 if (!bridge_dev) { 1111 fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n"); 1112 return; 1113 } 1114 pci_config_set_device_id(bridge_dev->config, pch_dev_id); 1115 pci_config_set_revision(bridge_dev->config, pch_rev_id); 1116 } 1117 1118 static void isapc_machine_options(MachineClass *m) 1119 { 1120 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 1121 m->desc = "ISA-only PC"; 1122 m->max_cpus = 1; 1123 m->option_rom_has_mr = true; 1124 m->rom_file_has_mr = false; 1125 pcmc->pci_enabled = false; 1126 pcmc->has_acpi_build = false; 1127 pcmc->smbios_defaults = false; 1128 pcmc->gigabyte_align = false; 1129 pcmc->smbios_legacy_mode = true; 1130 pcmc->has_reserved_memory = false; 1131 pcmc->default_nic_model = "ne2k_isa"; 1132 m->default_cpu_type = X86_CPU_TYPE_NAME("486"); 1133 } 1134 1135 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, 1136 isapc_machine_options); 1137 1138 1139 #ifdef CONFIG_XEN 1140 static void xenfv_machine_options(MachineClass *m) 1141 { 1142 m->desc = "Xen Fully-virtualized PC"; 1143 m->max_cpus = HVM_MAX_VCPUS; 1144 m->default_machine_opts = "accel=xen"; 1145 } 1146 1147 DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init, 1148 xenfv_machine_options); 1149 #endif 1150