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 "qemu/units.h" 28 #include "hw/hw.h" 29 #include "hw/loader.h" 30 #include "hw/i386/pc.h" 31 #include "hw/i386/apic.h" 32 #include "hw/display/ramfb.h" 33 #include "hw/smbios/smbios.h" 34 #include "hw/pci/pci.h" 35 #include "hw/pci/pci_ids.h" 36 #include "hw/usb.h" 37 #include "net/net.h" 38 #include "hw/boards.h" 39 #include "hw/ide.h" 40 #include "sysemu/kvm.h" 41 #include "hw/kvm/clock.h" 42 #include "sysemu/sysemu.h" 43 #include "hw/sysbus.h" 44 #include "sysemu/arch_init.h" 45 #include "hw/i2c/smbus.h" 46 #include "hw/xen/xen.h" 47 #include "exec/memory.h" 48 #include "exec/address-spaces.h" 49 #include "hw/acpi/acpi.h" 50 #include "cpu.h" 51 #include "qapi/error.h" 52 #include "qemu/error-report.h" 53 #ifdef CONFIG_XEN 54 #include <xen/hvm/hvm_info_table.h> 55 #include "hw/xen/xen_pt.h" 56 #endif 57 #include "migration/global_state.h" 58 #include "migration/misc.h" 59 #include "kvm_i386.h" 60 #include "sysemu/numa.h" 61 62 #define MAX_IDE_BUS 2 63 64 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; 65 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; 66 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; 67 68 /* PC hardware initialisation */ 69 static void pc_init1(MachineState *machine, 70 const char *host_type, const char *pci_type) 71 { 72 PCMachineState *pcms = PC_MACHINE(machine); 73 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 74 MemoryRegion *system_memory = get_system_memory(); 75 MemoryRegion *system_io = get_system_io(); 76 int i; 77 PCIBus *pci_bus; 78 ISABus *isa_bus; 79 PCII440FXState *i440fx_state; 80 int piix3_devfn = -1; 81 qemu_irq *i8259; 82 qemu_irq smi_irq; 83 GSIState *gsi_state; 84 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 85 BusState *idebus[MAX_IDE_BUS]; 86 ISADevice *rtc_state; 87 MemoryRegion *ram_memory; 88 MemoryRegion *pci_memory; 89 MemoryRegion *rom_memory; 90 ram_addr_t lowmem; 91 92 /* 93 * Calculate ram split, for memory below and above 4G. It's a bit 94 * complicated for backward compatibility reasons ... 95 * 96 * - Traditional split is 3.5G (lowmem = 0xe0000000). This is the 97 * default value for max_ram_below_4g now. 98 * 99 * - Then, to gigabyte align the memory, we move the split to 3G 100 * (lowmem = 0xc0000000). But only in case we have to split in 101 * the first place, i.e. ram_size is larger than (traditional) 102 * lowmem. And for new machine types (gigabyte_align = true) 103 * only, for live migration compatibility reasons. 104 * 105 * - Next the max-ram-below-4g option was added, which allowed to 106 * reduce lowmem to a smaller value, to allow a larger PCI I/O 107 * window below 4G. qemu doesn't enforce gigabyte alignment here, 108 * but prints a warning. 109 * 110 * - Finally max-ram-below-4g got updated to also allow raising lowmem, 111 * so legacy non-PAE guests can get as much memory as possible in 112 * the 32bit address space below 4G. 113 * 114 * - Note that Xen has its own ram setp code in xen_ram_init(), 115 * called via xen_hvm_init(). 116 * 117 * Examples: 118 * qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high 119 * qemu -M pc -m 4G (new default) -> 3072M low, 1024M high 120 * qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high 121 * qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M) 122 */ 123 if (xen_enabled()) { 124 xen_hvm_init(pcms, &ram_memory); 125 } else { 126 if (!pcms->max_ram_below_4g) { 127 pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */ 128 } 129 lowmem = pcms->max_ram_below_4g; 130 if (machine->ram_size >= pcms->max_ram_below_4g) { 131 if (pcmc->gigabyte_align) { 132 if (lowmem > 0xc0000000) { 133 lowmem = 0xc0000000; 134 } 135 if (lowmem & (1 * GiB - 1)) { 136 warn_report("Large machine and max_ram_below_4g " 137 "(%" PRIu64 ") not a multiple of 1G; " 138 "possible bad performance.", 139 pcms->max_ram_below_4g); 140 } 141 } 142 } 143 144 if (machine->ram_size >= lowmem) { 145 pcms->above_4g_mem_size = machine->ram_size - lowmem; 146 pcms->below_4g_mem_size = lowmem; 147 } else { 148 pcms->above_4g_mem_size = 0; 149 pcms->below_4g_mem_size = machine->ram_size; 150 } 151 } 152 153 pc_cpus_init(pcms); 154 155 if (kvm_enabled() && pcmc->kvmclock_enabled) { 156 kvmclock_create(); 157 } 158 159 if (pcmc->pci_enabled) { 160 pci_memory = g_new(MemoryRegion, 1); 161 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 162 rom_memory = pci_memory; 163 } else { 164 pci_memory = NULL; 165 rom_memory = system_memory; 166 } 167 168 pc_guest_info_init(pcms); 169 170 if (pcmc->smbios_defaults) { 171 MachineClass *mc = MACHINE_GET_CLASS(machine); 172 /* These values are guest ABI, do not change */ 173 smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)", 174 mc->name, pcmc->smbios_legacy_mode, 175 pcmc->smbios_uuid_encoded, 176 SMBIOS_ENTRY_POINT_21); 177 } 178 179 /* allocate ram and load rom/bios */ 180 if (!xen_enabled()) { 181 pc_memory_init(pcms, system_memory, 182 rom_memory, &ram_memory); 183 } else if (machine->kernel_filename != NULL) { 184 /* For xen HVM direct kernel boot, load linux here */ 185 xen_load_linux(pcms); 186 } 187 188 gsi_state = g_malloc0(sizeof(*gsi_state)); 189 if (kvm_ioapic_in_kernel()) { 190 kvm_pc_setup_irq_routing(pcmc->pci_enabled); 191 pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 192 GSI_NUM_PINS); 193 } else { 194 pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 195 } 196 197 if (pcmc->pci_enabled) { 198 pci_bus = i440fx_init(host_type, 199 pci_type, 200 &i440fx_state, &piix3_devfn, &isa_bus, pcms->gsi, 201 system_memory, system_io, machine->ram_size, 202 pcms->below_4g_mem_size, 203 pcms->above_4g_mem_size, 204 pci_memory, ram_memory); 205 pcms->bus = pci_bus; 206 } else { 207 pci_bus = NULL; 208 i440fx_state = NULL; 209 isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, 210 &error_abort); 211 no_hpet = 1; 212 } 213 isa_bus_irqs(isa_bus, pcms->gsi); 214 215 if (kvm_pic_in_kernel()) { 216 i8259 = kvm_i8259_init(isa_bus); 217 } else if (xen_enabled()) { 218 i8259 = xen_interrupt_controller_init(); 219 } else { 220 i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq()); 221 } 222 223 for (i = 0; i < ISA_NUM_IRQS; i++) { 224 gsi_state->i8259_irq[i] = i8259[i]; 225 } 226 g_free(i8259); 227 if (pcmc->pci_enabled) { 228 ioapic_init_gsi(gsi_state, "i440fx"); 229 } 230 231 pc_register_ferr_irq(pcms->gsi[13]); 232 233 pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL); 234 235 assert(pcms->vmport != ON_OFF_AUTO__MAX); 236 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 237 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 238 } 239 240 /* init basic PC hardware */ 241 pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, true, 242 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit, 0x4); 243 244 pc_nic_init(pcmc, isa_bus, pci_bus); 245 246 ide_drive_get(hd, ARRAY_SIZE(hd)); 247 if (pcmc->pci_enabled) { 248 PCIDevice *dev; 249 if (xen_enabled()) { 250 dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1); 251 } else { 252 dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1); 253 } 254 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); 255 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); 256 } else { 257 for(i = 0; i < MAX_IDE_BUS; i++) { 258 ISADevice *dev; 259 char busname[] = "ide.0"; 260 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], 261 ide_irq[i], 262 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); 263 /* 264 * The ide bus name is ide.0 for the first bus and ide.1 for the 265 * second one. 266 */ 267 busname[4] = '0' + i; 268 idebus[i] = qdev_get_child_bus(DEVICE(dev), busname); 269 } 270 } 271 272 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 273 274 if (pcmc->pci_enabled && machine_usb(machine)) { 275 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci"); 276 } 277 278 if (pcmc->pci_enabled && acpi_enabled) { 279 DeviceState *piix4_pm; 280 I2CBus *smbus; 281 282 smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0); 283 /* TODO: Populate SPD eeprom data. */ 284 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, 285 pcms->gsi[9], smi_irq, 286 pc_machine_is_smm_enabled(pcms), 287 &piix4_pm); 288 smbus_eeprom_init(smbus, 8, NULL, 0); 289 290 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 291 TYPE_HOTPLUG_HANDLER, 292 (Object **)&pcms->acpi_dev, 293 object_property_allow_set_link, 294 OBJ_PROP_LINK_STRONG, &error_abort); 295 object_property_set_link(OBJECT(machine), OBJECT(piix4_pm), 296 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort); 297 } 298 299 if (pcms->acpi_nvdimm_state.is_enabled) { 300 nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io, 301 pcms->fw_cfg, OBJECT(pcms)); 302 } 303 } 304 305 /* Looking for a pc_compat_2_4() function? It doesn't exist. 306 * pc_compat_*() functions that run on machine-init time and 307 * change global QEMU state are deprecated. Please don't create 308 * one, and implement any pc-*-2.4 (and newer) compat code in 309 * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options(). 310 */ 311 312 static void pc_compat_2_3(MachineState *machine) 313 { 314 PCMachineState *pcms = PC_MACHINE(machine); 315 if (kvm_enabled()) { 316 pcms->smm = ON_OFF_AUTO_OFF; 317 } 318 } 319 320 static void pc_compat_2_2(MachineState *machine) 321 { 322 pc_compat_2_3(machine); 323 machine->suppress_vmdesc = true; 324 } 325 326 static void pc_compat_2_1(MachineState *machine) 327 { 328 pc_compat_2_2(machine); 329 x86_cpu_change_kvm_default("svm", NULL); 330 } 331 332 static void pc_compat_2_0(MachineState *machine) 333 { 334 pc_compat_2_1(machine); 335 } 336 337 static void pc_compat_1_7(MachineState *machine) 338 { 339 pc_compat_2_0(machine); 340 x86_cpu_change_kvm_default("x2apic", NULL); 341 } 342 343 static void pc_compat_1_6(MachineState *machine) 344 { 345 pc_compat_1_7(machine); 346 } 347 348 static void pc_compat_1_5(MachineState *machine) 349 { 350 pc_compat_1_6(machine); 351 } 352 353 static void pc_compat_1_4(MachineState *machine) 354 { 355 pc_compat_1_5(machine); 356 } 357 358 static void pc_compat_1_3(MachineState *machine) 359 { 360 pc_compat_1_4(machine); 361 enable_compat_apic_id_mode(); 362 } 363 364 /* PC compat function for pc-0.14 to pc-1.2 */ 365 static void pc_compat_1_2(MachineState *machine) 366 { 367 pc_compat_1_3(machine); 368 x86_cpu_change_kvm_default("kvm-pv-eoi", NULL); 369 } 370 371 /* PC compat function for pc-0.10 to pc-0.13 */ 372 static void pc_compat_0_13(MachineState *machine) 373 { 374 pc_compat_1_2(machine); 375 } 376 377 static void pc_init_isa(MachineState *machine) 378 { 379 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); 380 } 381 382 #ifdef CONFIG_XEN 383 static void pc_xen_hvm_init_pci(MachineState *machine) 384 { 385 const char *pci_type = has_igd_gfx_passthru ? 386 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE; 387 388 pc_init1(machine, 389 TYPE_I440FX_PCI_HOST_BRIDGE, 390 pci_type); 391 } 392 393 static void pc_xen_hvm_init(MachineState *machine) 394 { 395 PCMachineState *pcms = PC_MACHINE(machine); 396 397 if (!xen_enabled()) { 398 error_report("xenfv machine requires the xen accelerator"); 399 exit(1); 400 } 401 402 pc_xen_hvm_init_pci(machine); 403 pci_create_simple(pcms->bus, -1, "xen-platform"); 404 } 405 #endif 406 407 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \ 408 static void pc_init_##suffix(MachineState *machine) \ 409 { \ 410 void (*compat)(MachineState *m) = (compatfn); \ 411 if (compat) { \ 412 compat(machine); \ 413 } \ 414 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \ 415 TYPE_I440FX_PCI_DEVICE); \ 416 } \ 417 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 418 419 static void pc_i440fx_machine_options(MachineClass *m) 420 { 421 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 422 pcmc->default_nic_model = "e1000"; 423 424 m->family = "pc_piix"; 425 m->desc = "Standard PC (i440FX + PIIX, 1996)"; 426 m->default_machine_opts = "firmware=bios-256k.bin"; 427 m->default_display = "std"; 428 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); 429 } 430 431 static void pc_i440fx_3_1_machine_options(MachineClass *m) 432 { 433 pc_i440fx_machine_options(m); 434 m->alias = "pc"; 435 m->is_default = 1; 436 } 437 438 DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL, 439 pc_i440fx_3_1_machine_options); 440 441 static void pc_i440fx_3_0_machine_options(MachineClass *m) 442 { 443 pc_i440fx_3_1_machine_options(m); 444 m->is_default = 0; 445 m->alias = NULL; 446 SET_MACHINE_COMPAT(m, PC_COMPAT_3_0); 447 } 448 449 DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL, 450 pc_i440fx_3_0_machine_options); 451 452 static void pc_i440fx_2_12_machine_options(MachineClass *m) 453 { 454 pc_i440fx_3_0_machine_options(m); 455 SET_MACHINE_COMPAT(m, PC_COMPAT_2_12); 456 } 457 458 DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL, 459 pc_i440fx_2_12_machine_options); 460 461 static void pc_i440fx_2_11_machine_options(MachineClass *m) 462 { 463 pc_i440fx_2_12_machine_options(m); 464 SET_MACHINE_COMPAT(m, PC_COMPAT_2_11); 465 } 466 467 DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL, 468 pc_i440fx_2_11_machine_options); 469 470 static void pc_i440fx_2_10_machine_options(MachineClass *m) 471 { 472 pc_i440fx_2_11_machine_options(m); 473 SET_MACHINE_COMPAT(m, PC_COMPAT_2_10); 474 m->auto_enable_numa_with_memhp = false; 475 } 476 477 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL, 478 pc_i440fx_2_10_machine_options); 479 480 static void pc_i440fx_2_9_machine_options(MachineClass *m) 481 { 482 pc_i440fx_2_10_machine_options(m); 483 SET_MACHINE_COMPAT(m, PC_COMPAT_2_9); 484 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 485 } 486 487 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL, 488 pc_i440fx_2_9_machine_options); 489 490 static void pc_i440fx_2_8_machine_options(MachineClass *m) 491 { 492 pc_i440fx_2_9_machine_options(m); 493 SET_MACHINE_COMPAT(m, PC_COMPAT_2_8); 494 } 495 496 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL, 497 pc_i440fx_2_8_machine_options); 498 499 500 static void pc_i440fx_2_7_machine_options(MachineClass *m) 501 { 502 pc_i440fx_2_8_machine_options(m); 503 SET_MACHINE_COMPAT(m, PC_COMPAT_2_7); 504 } 505 506 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL, 507 pc_i440fx_2_7_machine_options); 508 509 510 static void pc_i440fx_2_6_machine_options(MachineClass *m) 511 { 512 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 513 pc_i440fx_2_7_machine_options(m); 514 pcmc->legacy_cpu_hotplug = true; 515 pcmc->linuxboot_dma_enabled = false; 516 SET_MACHINE_COMPAT(m, PC_COMPAT_2_6); 517 } 518 519 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL, 520 pc_i440fx_2_6_machine_options); 521 522 523 static void pc_i440fx_2_5_machine_options(MachineClass *m) 524 { 525 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 526 pc_i440fx_2_6_machine_options(m); 527 pcmc->save_tsc_khz = false; 528 m->legacy_fw_cfg_order = 1; 529 SET_MACHINE_COMPAT(m, PC_COMPAT_2_5); 530 } 531 532 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL, 533 pc_i440fx_2_5_machine_options); 534 535 536 static void pc_i440fx_2_4_machine_options(MachineClass *m) 537 { 538 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 539 pc_i440fx_2_5_machine_options(m); 540 m->hw_version = "2.4.0"; 541 pcmc->broken_reserved_end = true; 542 SET_MACHINE_COMPAT(m, PC_COMPAT_2_4); 543 } 544 545 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL, 546 pc_i440fx_2_4_machine_options) 547 548 549 static void pc_i440fx_2_3_machine_options(MachineClass *m) 550 { 551 pc_i440fx_2_4_machine_options(m); 552 m->hw_version = "2.3.0"; 553 SET_MACHINE_COMPAT(m, PC_COMPAT_2_3); 554 } 555 556 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3, 557 pc_i440fx_2_3_machine_options); 558 559 560 static void pc_i440fx_2_2_machine_options(MachineClass *m) 561 { 562 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 563 pc_i440fx_2_3_machine_options(m); 564 m->hw_version = "2.2.0"; 565 SET_MACHINE_COMPAT(m, PC_COMPAT_2_2); 566 pcmc->rsdp_in_ram = false; 567 } 568 569 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2, 570 pc_i440fx_2_2_machine_options); 571 572 573 static void pc_i440fx_2_1_machine_options(MachineClass *m) 574 { 575 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 576 pc_i440fx_2_2_machine_options(m); 577 m->hw_version = "2.1.0"; 578 m->default_display = NULL; 579 SET_MACHINE_COMPAT(m, PC_COMPAT_2_1); 580 pcmc->smbios_uuid_encoded = false; 581 pcmc->enforce_aligned_dimm = false; 582 } 583 584 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1, 585 pc_i440fx_2_1_machine_options); 586 587 588 589 static void pc_i440fx_2_0_machine_options(MachineClass *m) 590 { 591 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 592 pc_i440fx_2_1_machine_options(m); 593 m->hw_version = "2.0.0"; 594 SET_MACHINE_COMPAT(m, PC_COMPAT_2_0); 595 pcmc->smbios_legacy_mode = true; 596 pcmc->has_reserved_memory = false; 597 /* This value depends on the actual DSDT and SSDT compiled into 598 * the source QEMU; unfortunately it depends on the binary and 599 * not on the machine type, so we cannot make pc-i440fx-1.7 work on 600 * both QEMU 1.7 and QEMU 2.0. 601 * 602 * Large variations cause migration to fail for more than one 603 * consecutive value of the "-smp" maxcpus option. 604 * 605 * For small variations of the kind caused by different iasl versions, 606 * the 4k rounding usually leaves slack. However, there could be still 607 * one or two values that break. For QEMU 1.7 and QEMU 2.0 the 608 * slack is only ~10 bytes before one "-smp maxcpus" value breaks! 609 * 610 * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on 611 * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. 612 */ 613 pcmc->legacy_acpi_table_size = 6652; 614 pcmc->acpi_data_size = 0x10000; 615 } 616 617 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0, 618 pc_i440fx_2_0_machine_options); 619 620 621 static void pc_i440fx_1_7_machine_options(MachineClass *m) 622 { 623 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 624 pc_i440fx_2_0_machine_options(m); 625 m->hw_version = "1.7.0"; 626 m->default_machine_opts = NULL; 627 m->option_rom_has_mr = true; 628 SET_MACHINE_COMPAT(m, PC_COMPAT_1_7); 629 pcmc->smbios_defaults = false; 630 pcmc->gigabyte_align = false; 631 pcmc->legacy_acpi_table_size = 6414; 632 } 633 634 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7, 635 pc_i440fx_1_7_machine_options); 636 637 638 static void pc_i440fx_1_6_machine_options(MachineClass *m) 639 { 640 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 641 pc_i440fx_1_7_machine_options(m); 642 m->hw_version = "1.6.0"; 643 m->rom_file_has_mr = false; 644 SET_MACHINE_COMPAT(m, PC_COMPAT_1_6); 645 pcmc->has_acpi_build = false; 646 } 647 648 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6, 649 pc_i440fx_1_6_machine_options); 650 651 652 static void pc_i440fx_1_5_machine_options(MachineClass *m) 653 { 654 pc_i440fx_1_6_machine_options(m); 655 m->hw_version = "1.5.0"; 656 SET_MACHINE_COMPAT(m, PC_COMPAT_1_5); 657 } 658 659 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5, 660 pc_i440fx_1_5_machine_options); 661 662 663 static void pc_i440fx_1_4_machine_options(MachineClass *m) 664 { 665 pc_i440fx_1_5_machine_options(m); 666 m->hw_version = "1.4.0"; 667 m->hot_add_cpu = NULL; 668 SET_MACHINE_COMPAT(m, PC_COMPAT_1_4); 669 } 670 671 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4, 672 pc_i440fx_1_4_machine_options); 673 674 675 #define PC_COMPAT_1_3 \ 676 PC_CPU_MODEL_IDS("1.3.0") \ 677 {\ 678 .driver = "usb-tablet",\ 679 .property = "usb_version",\ 680 .value = stringify(1),\ 681 },{\ 682 .driver = "virtio-net-pci",\ 683 .property = "ctrl_mac_addr",\ 684 .value = "off", \ 685 },{ \ 686 .driver = "virtio-net-pci", \ 687 .property = "mq", \ 688 .value = "off", \ 689 }, {\ 690 .driver = "e1000",\ 691 .property = "autonegotiation",\ 692 .value = "off",\ 693 }, 694 695 696 static void pc_i440fx_1_3_machine_options(MachineClass *m) 697 { 698 pc_i440fx_1_4_machine_options(m); 699 m->hw_version = "1.3.0"; 700 SET_MACHINE_COMPAT(m, PC_COMPAT_1_3); 701 } 702 703 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3, 704 pc_i440fx_1_3_machine_options); 705 706 707 #define PC_COMPAT_1_2 \ 708 PC_CPU_MODEL_IDS("1.2.0") \ 709 {\ 710 .driver = "nec-usb-xhci",\ 711 .property = "msi",\ 712 .value = "off",\ 713 },{\ 714 .driver = "nec-usb-xhci",\ 715 .property = "msix",\ 716 .value = "off",\ 717 },{\ 718 .driver = "ivshmem",\ 719 .property = "use64",\ 720 .value = "0",\ 721 },{\ 722 .driver = "qxl",\ 723 .property = "revision",\ 724 .value = stringify(3),\ 725 },{\ 726 .driver = "qxl-vga",\ 727 .property = "revision",\ 728 .value = stringify(3),\ 729 },{\ 730 .driver = "VGA",\ 731 .property = "mmio",\ 732 .value = "off",\ 733 }, 734 735 static void pc_i440fx_1_2_machine_options(MachineClass *m) 736 { 737 pc_i440fx_1_3_machine_options(m); 738 m->hw_version = "1.2.0"; 739 SET_MACHINE_COMPAT(m, PC_COMPAT_1_2); 740 } 741 742 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2, 743 pc_i440fx_1_2_machine_options); 744 745 746 #define PC_COMPAT_1_1 \ 747 PC_CPU_MODEL_IDS("1.1.0") \ 748 {\ 749 .driver = "virtio-scsi-pci",\ 750 .property = "hotplug",\ 751 .value = "off",\ 752 },{\ 753 .driver = "virtio-scsi-pci",\ 754 .property = "param_change",\ 755 .value = "off",\ 756 },{\ 757 .driver = "VGA",\ 758 .property = "vgamem_mb",\ 759 .value = stringify(8),\ 760 },{\ 761 .driver = "vmware-svga",\ 762 .property = "vgamem_mb",\ 763 .value = stringify(8),\ 764 },{\ 765 .driver = "qxl-vga",\ 766 .property = "vgamem_mb",\ 767 .value = stringify(8),\ 768 },{\ 769 .driver = "qxl",\ 770 .property = "vgamem_mb",\ 771 .value = stringify(8),\ 772 },{\ 773 .driver = "virtio-blk-pci",\ 774 .property = "config-wce",\ 775 .value = "off",\ 776 }, 777 778 static void pc_i440fx_1_1_machine_options(MachineClass *m) 779 { 780 pc_i440fx_1_2_machine_options(m); 781 m->hw_version = "1.1.0"; 782 SET_MACHINE_COMPAT(m, PC_COMPAT_1_1); 783 } 784 785 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2, 786 pc_i440fx_1_1_machine_options); 787 788 789 #define PC_COMPAT_1_0 \ 790 PC_CPU_MODEL_IDS("1.0") \ 791 {\ 792 .driver = TYPE_ISA_FDC,\ 793 .property = "check_media_rate",\ 794 .value = "off",\ 795 }, {\ 796 .driver = "virtio-balloon-pci",\ 797 .property = "class",\ 798 .value = stringify(PCI_CLASS_MEMORY_RAM),\ 799 },{\ 800 .driver = "apic-common",\ 801 .property = "vapic",\ 802 .value = "off",\ 803 },{\ 804 .driver = TYPE_USB_DEVICE,\ 805 .property = "full-path",\ 806 .value = "no",\ 807 }, 808 809 static void pc_i440fx_1_0_machine_options(MachineClass *m) 810 { 811 pc_i440fx_1_1_machine_options(m); 812 m->hw_version = "1.0"; 813 SET_MACHINE_COMPAT(m, PC_COMPAT_1_0); 814 } 815 816 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2, 817 pc_i440fx_1_0_machine_options); 818 819 820 #define PC_COMPAT_0_15 \ 821 PC_CPU_MODEL_IDS("0.15") 822 823 static void pc_i440fx_0_15_machine_options(MachineClass *m) 824 { 825 pc_i440fx_1_0_machine_options(m); 826 m->hw_version = "0.15"; 827 SET_MACHINE_COMPAT(m, PC_COMPAT_0_15); 828 } 829 830 DEFINE_I440FX_MACHINE(v0_15, "pc-0.15", pc_compat_1_2, 831 pc_i440fx_0_15_machine_options); 832 833 834 #define PC_COMPAT_0_14 \ 835 PC_CPU_MODEL_IDS("0.14") \ 836 {\ 837 .driver = "virtio-blk-pci",\ 838 .property = "event_idx",\ 839 .value = "off",\ 840 },{\ 841 .driver = "virtio-serial-pci",\ 842 .property = "event_idx",\ 843 .value = "off",\ 844 },{\ 845 .driver = "virtio-net-pci",\ 846 .property = "event_idx",\ 847 .value = "off",\ 848 },{\ 849 .driver = "virtio-balloon-pci",\ 850 .property = "event_idx",\ 851 .value = "off",\ 852 },{\ 853 .driver = "qxl",\ 854 .property = "revision",\ 855 .value = stringify(2),\ 856 },{\ 857 .driver = "qxl-vga",\ 858 .property = "revision",\ 859 .value = stringify(2),\ 860 }, 861 862 static void pc_i440fx_0_14_machine_options(MachineClass *m) 863 { 864 pc_i440fx_0_15_machine_options(m); 865 m->hw_version = "0.14"; 866 SET_MACHINE_COMPAT(m, PC_COMPAT_0_14); 867 } 868 869 DEFINE_I440FX_MACHINE(v0_14, "pc-0.14", pc_compat_1_2, 870 pc_i440fx_0_14_machine_options); 871 872 873 #define PC_COMPAT_0_13 \ 874 PC_CPU_MODEL_IDS("0.13") \ 875 {\ 876 .driver = TYPE_PCI_DEVICE,\ 877 .property = "command_serr_enable",\ 878 .value = "off",\ 879 },{\ 880 .driver = "AC97",\ 881 .property = "use_broken_id",\ 882 .value = stringify(1),\ 883 },{\ 884 .driver = "virtio-9p-pci",\ 885 .property = "vectors",\ 886 .value = stringify(0),\ 887 },{\ 888 .driver = "VGA",\ 889 .property = "rombar",\ 890 .value = stringify(0),\ 891 },{\ 892 .driver = "vmware-svga",\ 893 .property = "rombar",\ 894 .value = stringify(0),\ 895 }, 896 897 static void pc_i440fx_0_13_machine_options(MachineClass *m) 898 { 899 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 900 pc_i440fx_0_14_machine_options(m); 901 m->hw_version = "0.13"; 902 SET_MACHINE_COMPAT(m, PC_COMPAT_0_13); 903 pcmc->kvmclock_enabled = false; 904 } 905 906 DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13, 907 pc_i440fx_0_13_machine_options); 908 909 910 #define PC_COMPAT_0_12 \ 911 PC_CPU_MODEL_IDS("0.12") \ 912 {\ 913 .driver = "virtio-serial-pci",\ 914 .property = "max_ports",\ 915 .value = stringify(1),\ 916 },{\ 917 .driver = "virtio-serial-pci",\ 918 .property = "vectors",\ 919 .value = stringify(0),\ 920 },{\ 921 .driver = "usb-mouse",\ 922 .property = "serial",\ 923 .value = "1",\ 924 },{\ 925 .driver = "usb-tablet",\ 926 .property = "serial",\ 927 .value = "1",\ 928 },{\ 929 .driver = "usb-kbd",\ 930 .property = "serial",\ 931 .value = "1",\ 932 }, 933 934 static void pc_i440fx_0_12_machine_options(MachineClass *m) 935 { 936 pc_i440fx_0_13_machine_options(m); 937 m->hw_version = "0.12"; 938 SET_MACHINE_COMPAT(m, PC_COMPAT_0_12); 939 } 940 941 DEFINE_I440FX_MACHINE(v0_12, "pc-0.12", pc_compat_0_13, 942 pc_i440fx_0_12_machine_options); 943 944 945 #define PC_COMPAT_0_11 \ 946 PC_CPU_MODEL_IDS("0.11") \ 947 {\ 948 .driver = "virtio-blk-pci",\ 949 .property = "vectors",\ 950 .value = stringify(0),\ 951 },{\ 952 .driver = TYPE_PCI_DEVICE,\ 953 .property = "rombar",\ 954 .value = stringify(0),\ 955 },{\ 956 .driver = "ide-drive",\ 957 .property = "ver",\ 958 .value = "0.11",\ 959 },{\ 960 .driver = "scsi-disk",\ 961 .property = "ver",\ 962 .value = "0.11",\ 963 }, 964 965 static void pc_i440fx_0_11_machine_options(MachineClass *m) 966 { 967 pc_i440fx_0_12_machine_options(m); 968 m->hw_version = "0.11"; 969 m->deprecation_reason = "use a newer machine type instead"; 970 SET_MACHINE_COMPAT(m, PC_COMPAT_0_11); 971 } 972 973 DEFINE_I440FX_MACHINE(v0_11, "pc-0.11", pc_compat_0_13, 974 pc_i440fx_0_11_machine_options); 975 976 977 #define PC_COMPAT_0_10 \ 978 PC_CPU_MODEL_IDS("0.10") \ 979 {\ 980 .driver = "virtio-blk-pci",\ 981 .property = "class",\ 982 .value = stringify(PCI_CLASS_STORAGE_OTHER),\ 983 },{\ 984 .driver = "virtio-serial-pci",\ 985 .property = "class",\ 986 .value = stringify(PCI_CLASS_DISPLAY_OTHER),\ 987 },{\ 988 .driver = "virtio-net-pci",\ 989 .property = "vectors",\ 990 .value = stringify(0),\ 991 },{\ 992 .driver = "ide-drive",\ 993 .property = "ver",\ 994 .value = "0.10",\ 995 },{\ 996 .driver = "scsi-disk",\ 997 .property = "ver",\ 998 .value = "0.10",\ 999 }, 1000 1001 static void pc_i440fx_0_10_machine_options(MachineClass *m) 1002 { 1003 pc_i440fx_0_11_machine_options(m); 1004 m->hw_version = "0.10"; 1005 SET_MACHINE_COMPAT(m, PC_COMPAT_0_10); 1006 } 1007 1008 DEFINE_I440FX_MACHINE(v0_10, "pc-0.10", pc_compat_0_13, 1009 pc_i440fx_0_10_machine_options); 1010 1011 typedef struct { 1012 uint16_t gpu_device_id; 1013 uint16_t pch_device_id; 1014 uint8_t pch_revision_id; 1015 } IGDDeviceIDInfo; 1016 1017 /* In real world different GPU should have different PCH. But actually 1018 * the different PCH DIDs likely map to different PCH SKUs. We do the 1019 * same thing for the GPU. For PCH, the different SKUs are going to be 1020 * all the same silicon design and implementation, just different 1021 * features turn on and off with fuses. The SW interfaces should be 1022 * consistent across all SKUs in a given family (eg LPT). But just same 1023 * features may not be supported. 1024 * 1025 * Most of these different PCH features probably don't matter to the 1026 * Gfx driver, but obviously any difference in display port connections 1027 * will so it should be fine with any PCH in case of passthrough. 1028 * 1029 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell) 1030 * scenarios, 0x9cc3 for BDW(Broadwell). 1031 */ 1032 static const IGDDeviceIDInfo igd_combo_id_infos[] = { 1033 /* HSW Classic */ 1034 {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */ 1035 {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */ 1036 {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */ 1037 {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */ 1038 {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */ 1039 /* HSW ULT */ 1040 {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */ 1041 {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */ 1042 {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */ 1043 {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */ 1044 {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */ 1045 {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */ 1046 /* HSW CRW */ 1047 {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */ 1048 {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */ 1049 /* HSW Server */ 1050 {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */ 1051 /* HSW SRVR */ 1052 {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */ 1053 /* BSW */ 1054 {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */ 1055 {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */ 1056 {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */ 1057 {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */ 1058 {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */ 1059 {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */ 1060 {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */ 1061 {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */ 1062 {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */ 1063 {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */ 1064 {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */ 1065 }; 1066 1067 static void isa_bridge_class_init(ObjectClass *klass, void *data) 1068 { 1069 DeviceClass *dc = DEVICE_CLASS(klass); 1070 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 1071 1072 dc->desc = "ISA bridge faked to support IGD PT"; 1073 k->vendor_id = PCI_VENDOR_ID_INTEL; 1074 k->class_id = PCI_CLASS_BRIDGE_ISA; 1075 }; 1076 1077 static TypeInfo isa_bridge_info = { 1078 .name = "igd-passthrough-isa-bridge", 1079 .parent = TYPE_PCI_DEVICE, 1080 .instance_size = sizeof(PCIDevice), 1081 .class_init = isa_bridge_class_init, 1082 .interfaces = (InterfaceInfo[]) { 1083 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 1084 { }, 1085 }, 1086 }; 1087 1088 static void pt_graphics_register_types(void) 1089 { 1090 type_register_static(&isa_bridge_info); 1091 } 1092 type_init(pt_graphics_register_types) 1093 1094 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id) 1095 { 1096 struct PCIDevice *bridge_dev; 1097 int i, num; 1098 uint16_t pch_dev_id = 0xffff; 1099 uint8_t pch_rev_id; 1100 1101 num = ARRAY_SIZE(igd_combo_id_infos); 1102 for (i = 0; i < num; i++) { 1103 if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) { 1104 pch_dev_id = igd_combo_id_infos[i].pch_device_id; 1105 pch_rev_id = igd_combo_id_infos[i].pch_revision_id; 1106 } 1107 } 1108 1109 if (pch_dev_id == 0xffff) { 1110 return; 1111 } 1112 1113 /* Currently IGD drivers always need to access PCH by 1f.0. */ 1114 bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), 1115 "igd-passthrough-isa-bridge"); 1116 1117 /* 1118 * Note that vendor id is always PCI_VENDOR_ID_INTEL. 1119 */ 1120 if (!bridge_dev) { 1121 fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n"); 1122 return; 1123 } 1124 pci_config_set_device_id(bridge_dev->config, pch_dev_id); 1125 pci_config_set_revision(bridge_dev->config, pch_rev_id); 1126 } 1127 1128 static void isapc_machine_options(MachineClass *m) 1129 { 1130 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 1131 m->desc = "ISA-only PC"; 1132 m->max_cpus = 1; 1133 m->option_rom_has_mr = true; 1134 m->rom_file_has_mr = false; 1135 pcmc->pci_enabled = false; 1136 pcmc->has_acpi_build = false; 1137 pcmc->smbios_defaults = false; 1138 pcmc->gigabyte_align = false; 1139 pcmc->smbios_legacy_mode = true; 1140 pcmc->has_reserved_memory = false; 1141 pcmc->default_nic_model = "ne2k_isa"; 1142 m->default_cpu_type = X86_CPU_TYPE_NAME("486"); 1143 } 1144 1145 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, 1146 isapc_machine_options); 1147 1148 1149 #ifdef CONFIG_XEN 1150 static void xenfv_machine_options(MachineClass *m) 1151 { 1152 m->desc = "Xen Fully-virtualized PC"; 1153 m->max_cpus = HVM_MAX_VCPUS; 1154 m->default_machine_opts = "accel=xen"; 1155 } 1156 1157 DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init, 1158 xenfv_machine_options); 1159 #endif 1160