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 #include "config-devices.h" 27 28 #include "qemu/units.h" 29 #include "hw/hw.h" 30 #include "hw/loader.h" 31 #include "hw/i386/pc.h" 32 #include "hw/i386/apic.h" 33 #include "hw/display/ramfb.h" 34 #include "hw/firmware/smbios.h" 35 #include "hw/pci/pci.h" 36 #include "hw/pci/pci_ids.h" 37 #include "hw/usb.h" 38 #include "net/net.h" 39 #include "hw/boards.h" 40 #include "hw/ide.h" 41 #include "hw/irq.h" 42 #include "sysemu/kvm.h" 43 #include "hw/kvm/clock.h" 44 #include "sysemu/sysemu.h" 45 #include "hw/sysbus.h" 46 #include "sysemu/arch_init.h" 47 #include "hw/i2c/smbus_eeprom.h" 48 #include "hw/xen/xen.h" 49 #include "exec/memory.h" 50 #include "exec/address-spaces.h" 51 #include "hw/acpi/acpi.h" 52 #include "cpu.h" 53 #include "qapi/error.h" 54 #include "qemu/error-report.h" 55 #ifdef CONFIG_XEN 56 #include <xen/hvm/hvm_info_table.h> 57 #include "hw/xen/xen_pt.h" 58 #endif 59 #include "migration/global_state.h" 60 #include "migration/misc.h" 61 #include "kvm_i386.h" 62 #include "sysemu/numa.h" 63 64 #define MAX_IDE_BUS 2 65 66 #ifdef CONFIG_IDE_ISA 67 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; 68 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; 69 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; 70 #endif 71 72 /* PC hardware initialisation */ 73 static void pc_init1(MachineState *machine, 74 const char *host_type, const char *pci_type) 75 { 76 PCMachineState *pcms = PC_MACHINE(machine); 77 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 78 MemoryRegion *system_memory = get_system_memory(); 79 MemoryRegion *system_io = get_system_io(); 80 int i; 81 PCIBus *pci_bus; 82 ISABus *isa_bus; 83 PCII440FXState *i440fx_state; 84 int piix3_devfn = -1; 85 qemu_irq *i8259; 86 qemu_irq smi_irq; 87 GSIState *gsi_state; 88 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 89 BusState *idebus[MAX_IDE_BUS]; 90 ISADevice *rtc_state; 91 MemoryRegion *ram_memory; 92 MemoryRegion *pci_memory; 93 MemoryRegion *rom_memory; 94 ram_addr_t lowmem; 95 96 /* 97 * Calculate ram split, for memory below and above 4G. It's a bit 98 * complicated for backward compatibility reasons ... 99 * 100 * - Traditional split is 3.5G (lowmem = 0xe0000000). This is the 101 * default value for max_ram_below_4g now. 102 * 103 * - Then, to gigabyte align the memory, we move the split to 3G 104 * (lowmem = 0xc0000000). But only in case we have to split in 105 * the first place, i.e. ram_size is larger than (traditional) 106 * lowmem. And for new machine types (gigabyte_align = true) 107 * only, for live migration compatibility reasons. 108 * 109 * - Next the max-ram-below-4g option was added, which allowed to 110 * reduce lowmem to a smaller value, to allow a larger PCI I/O 111 * window below 4G. qemu doesn't enforce gigabyte alignment here, 112 * but prints a warning. 113 * 114 * - Finally max-ram-below-4g got updated to also allow raising lowmem, 115 * so legacy non-PAE guests can get as much memory as possible in 116 * the 32bit address space below 4G. 117 * 118 * - Note that Xen has its own ram setp code in xen_ram_init(), 119 * called via xen_hvm_init(). 120 * 121 * Examples: 122 * qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high 123 * qemu -M pc -m 4G (new default) -> 3072M low, 1024M high 124 * qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high 125 * qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M) 126 */ 127 if (xen_enabled()) { 128 xen_hvm_init(pcms, &ram_memory); 129 } else { 130 if (!pcms->max_ram_below_4g) { 131 pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */ 132 } 133 lowmem = pcms->max_ram_below_4g; 134 if (machine->ram_size >= pcms->max_ram_below_4g) { 135 if (pcmc->gigabyte_align) { 136 if (lowmem > 0xc0000000) { 137 lowmem = 0xc0000000; 138 } 139 if (lowmem & (1 * GiB - 1)) { 140 warn_report("Large machine and max_ram_below_4g " 141 "(%" PRIu64 ") not a multiple of 1G; " 142 "possible bad performance.", 143 pcms->max_ram_below_4g); 144 } 145 } 146 } 147 148 if (machine->ram_size >= lowmem) { 149 pcms->above_4g_mem_size = machine->ram_size - lowmem; 150 pcms->below_4g_mem_size = lowmem; 151 } else { 152 pcms->above_4g_mem_size = 0; 153 pcms->below_4g_mem_size = machine->ram_size; 154 } 155 } 156 157 pc_cpus_init(pcms); 158 159 if (kvm_enabled() && pcmc->kvmclock_enabled) { 160 kvmclock_create(); 161 } 162 163 if (pcmc->pci_enabled) { 164 pci_memory = g_new(MemoryRegion, 1); 165 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 166 rom_memory = pci_memory; 167 } else { 168 pci_memory = NULL; 169 rom_memory = system_memory; 170 } 171 172 pc_guest_info_init(pcms); 173 174 if (pcmc->smbios_defaults) { 175 MachineClass *mc = MACHINE_GET_CLASS(machine); 176 /* These values are guest ABI, do not change */ 177 smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)", 178 mc->name, pcmc->smbios_legacy_mode, 179 pcmc->smbios_uuid_encoded, 180 SMBIOS_ENTRY_POINT_21); 181 } 182 183 /* allocate ram and load rom/bios */ 184 if (!xen_enabled()) { 185 pc_memory_init(pcms, system_memory, 186 rom_memory, &ram_memory); 187 } else if (machine->kernel_filename != NULL) { 188 /* For xen HVM direct kernel boot, load linux here */ 189 xen_load_linux(pcms); 190 } 191 192 gsi_state = g_malloc0(sizeof(*gsi_state)); 193 if (kvm_ioapic_in_kernel()) { 194 kvm_pc_setup_irq_routing(pcmc->pci_enabled); 195 pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 196 GSI_NUM_PINS); 197 } else { 198 pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 199 } 200 201 if (pcmc->pci_enabled) { 202 pci_bus = i440fx_init(host_type, 203 pci_type, 204 &i440fx_state, &piix3_devfn, &isa_bus, pcms->gsi, 205 system_memory, system_io, machine->ram_size, 206 pcms->below_4g_mem_size, 207 pcms->above_4g_mem_size, 208 pci_memory, ram_memory); 209 pcms->bus = pci_bus; 210 } else { 211 pci_bus = NULL; 212 i440fx_state = NULL; 213 isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, 214 &error_abort); 215 no_hpet = 1; 216 } 217 isa_bus_irqs(isa_bus, pcms->gsi); 218 219 if (kvm_pic_in_kernel()) { 220 i8259 = kvm_i8259_init(isa_bus); 221 } else if (xen_enabled()) { 222 i8259 = xen_interrupt_controller_init(); 223 } else { 224 i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq()); 225 } 226 227 for (i = 0; i < ISA_NUM_IRQS; i++) { 228 gsi_state->i8259_irq[i] = i8259[i]; 229 } 230 g_free(i8259); 231 if (pcmc->pci_enabled) { 232 ioapic_init_gsi(gsi_state, "i440fx"); 233 } 234 235 pc_register_ferr_irq(pcms->gsi[13]); 236 237 pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL); 238 239 assert(pcms->vmport != ON_OFF_AUTO__MAX); 240 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 241 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 242 } 243 244 /* init basic PC hardware */ 245 pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, true, 246 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit_enabled, 247 0x4); 248 249 pc_nic_init(pcmc, isa_bus, pci_bus); 250 251 ide_drive_get(hd, ARRAY_SIZE(hd)); 252 if (pcmc->pci_enabled) { 253 PCIDevice *dev; 254 if (xen_enabled()) { 255 dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1); 256 } else { 257 dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1); 258 } 259 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); 260 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); 261 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 262 } 263 #ifdef CONFIG_IDE_ISA 264 else { 265 for(i = 0; i < MAX_IDE_BUS; i++) { 266 ISADevice *dev; 267 char busname[] = "ide.0"; 268 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], 269 ide_irq[i], 270 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); 271 /* 272 * The ide bus name is ide.0 for the first bus and ide.1 for the 273 * second one. 274 */ 275 busname[4] = '0' + i; 276 idebus[i] = qdev_get_child_bus(DEVICE(dev), busname); 277 } 278 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 279 } 280 #endif 281 282 if (pcmc->pci_enabled && machine_usb(machine)) { 283 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci"); 284 } 285 286 if (pcmc->pci_enabled && acpi_enabled) { 287 DeviceState *piix4_pm; 288 I2CBus *smbus; 289 290 smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0); 291 /* TODO: Populate SPD eeprom data. */ 292 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, 293 pcms->gsi[9], smi_irq, 294 pc_machine_is_smm_enabled(pcms), 295 &piix4_pm); 296 smbus_eeprom_init(smbus, 8, NULL, 0); 297 298 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 299 TYPE_HOTPLUG_HANDLER, 300 (Object **)&pcms->acpi_dev, 301 object_property_allow_set_link, 302 OBJ_PROP_LINK_STRONG, &error_abort); 303 object_property_set_link(OBJECT(machine), OBJECT(piix4_pm), 304 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort); 305 } 306 307 if (machine->nvdimms_state->is_enabled) { 308 nvdimm_init_acpi_state(machine->nvdimms_state, system_io, 309 pcms->fw_cfg, OBJECT(pcms)); 310 } 311 } 312 313 /* Looking for a pc_compat_2_4() function? It doesn't exist. 314 * pc_compat_*() functions that run on machine-init time and 315 * change global QEMU state are deprecated. Please don't create 316 * one, and implement any pc-*-2.4 (and newer) compat code in 317 * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options(). 318 */ 319 320 static void pc_compat_2_3_fn(MachineState *machine) 321 { 322 PCMachineState *pcms = PC_MACHINE(machine); 323 if (kvm_enabled()) { 324 pcms->smm = ON_OFF_AUTO_OFF; 325 } 326 } 327 328 static void pc_compat_2_2_fn(MachineState *machine) 329 { 330 pc_compat_2_3_fn(machine); 331 } 332 333 static void pc_compat_2_1_fn(MachineState *machine) 334 { 335 pc_compat_2_2_fn(machine); 336 x86_cpu_change_kvm_default("svm", NULL); 337 } 338 339 static void pc_compat_2_0_fn(MachineState *machine) 340 { 341 pc_compat_2_1_fn(machine); 342 } 343 344 static void pc_compat_1_7_fn(MachineState *machine) 345 { 346 pc_compat_2_0_fn(machine); 347 x86_cpu_change_kvm_default("x2apic", NULL); 348 } 349 350 static void pc_compat_1_6_fn(MachineState *machine) 351 { 352 pc_compat_1_7_fn(machine); 353 } 354 355 static void pc_compat_1_5_fn(MachineState *machine) 356 { 357 pc_compat_1_6_fn(machine); 358 } 359 360 static void pc_compat_1_4_fn(MachineState *machine) 361 { 362 pc_compat_1_5_fn(machine); 363 } 364 365 static void pc_compat_1_3(MachineState *machine) 366 { 367 pc_compat_1_4_fn(machine); 368 } 369 370 /* PC compat function for pc-0.14 to pc-1.2 */ 371 static void pc_compat_1_2(MachineState *machine) 372 { 373 pc_compat_1_3(machine); 374 x86_cpu_change_kvm_default("kvm-pv-eoi", NULL); 375 } 376 377 /* PC compat function for pc-0.12 and pc-0.13 */ 378 static void pc_compat_0_13(MachineState *machine) 379 { 380 pc_compat_1_2(machine); 381 } 382 383 static void pc_init_isa(MachineState *machine) 384 { 385 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); 386 } 387 388 #ifdef CONFIG_XEN 389 static void pc_xen_hvm_init_pci(MachineState *machine) 390 { 391 const char *pci_type = has_igd_gfx_passthru ? 392 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE; 393 394 pc_init1(machine, 395 TYPE_I440FX_PCI_HOST_BRIDGE, 396 pci_type); 397 } 398 399 static void pc_xen_hvm_init(MachineState *machine) 400 { 401 PCMachineState *pcms = PC_MACHINE(machine); 402 403 if (!xen_enabled()) { 404 error_report("xenfv machine requires the xen accelerator"); 405 exit(1); 406 } 407 408 pc_xen_hvm_init_pci(machine); 409 pci_create_simple(pcms->bus, -1, "xen-platform"); 410 } 411 #endif 412 413 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \ 414 static void pc_init_##suffix(MachineState *machine) \ 415 { \ 416 void (*compat)(MachineState *m) = (compatfn); \ 417 if (compat) { \ 418 compat(machine); \ 419 } \ 420 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \ 421 TYPE_I440FX_PCI_DEVICE); \ 422 } \ 423 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 424 425 static void pc_i440fx_machine_options(MachineClass *m) 426 { 427 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 428 pcmc->default_nic_model = "e1000"; 429 430 m->family = "pc_piix"; 431 m->desc = "Standard PC (i440FX + PIIX, 1996)"; 432 m->default_machine_opts = "firmware=bios-256k.bin"; 433 m->default_display = "std"; 434 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); 435 } 436 437 static void pc_i440fx_4_1_machine_options(MachineClass *m) 438 { 439 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 440 pc_i440fx_machine_options(m); 441 m->alias = "pc"; 442 m->is_default = 1; 443 pcmc->default_cpu_version = 1; 444 } 445 446 DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL, 447 pc_i440fx_4_1_machine_options); 448 449 static void pc_i440fx_4_0_machine_options(MachineClass *m) 450 { 451 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 452 pc_i440fx_4_1_machine_options(m); 453 m->alias = NULL; 454 m->is_default = 0; 455 pcmc->default_cpu_version = CPU_VERSION_LEGACY; 456 compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len); 457 compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len); 458 } 459 460 DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL, 461 pc_i440fx_4_0_machine_options); 462 463 static void pc_i440fx_3_1_machine_options(MachineClass *m) 464 { 465 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 466 467 pc_i440fx_4_0_machine_options(m); 468 m->is_default = 0; 469 m->smbus_no_migration_support = true; 470 m->alias = NULL; 471 pcmc->pvh_enabled = false; 472 compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len); 473 compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len); 474 } 475 476 DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL, 477 pc_i440fx_3_1_machine_options); 478 479 static void pc_i440fx_3_0_machine_options(MachineClass *m) 480 { 481 pc_i440fx_3_1_machine_options(m); 482 compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len); 483 compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len); 484 } 485 486 DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL, 487 pc_i440fx_3_0_machine_options); 488 489 static void pc_i440fx_2_12_machine_options(MachineClass *m) 490 { 491 pc_i440fx_3_0_machine_options(m); 492 compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len); 493 compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len); 494 } 495 496 DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL, 497 pc_i440fx_2_12_machine_options); 498 499 static void pc_i440fx_2_11_machine_options(MachineClass *m) 500 { 501 pc_i440fx_2_12_machine_options(m); 502 compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len); 503 compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len); 504 } 505 506 DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL, 507 pc_i440fx_2_11_machine_options); 508 509 static void pc_i440fx_2_10_machine_options(MachineClass *m) 510 { 511 pc_i440fx_2_11_machine_options(m); 512 compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len); 513 compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len); 514 m->auto_enable_numa_with_memhp = false; 515 } 516 517 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL, 518 pc_i440fx_2_10_machine_options); 519 520 static void pc_i440fx_2_9_machine_options(MachineClass *m) 521 { 522 pc_i440fx_2_10_machine_options(m); 523 compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len); 524 compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len); 525 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 526 } 527 528 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL, 529 pc_i440fx_2_9_machine_options); 530 531 static void pc_i440fx_2_8_machine_options(MachineClass *m) 532 { 533 pc_i440fx_2_9_machine_options(m); 534 compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len); 535 compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len); 536 } 537 538 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL, 539 pc_i440fx_2_8_machine_options); 540 541 static void pc_i440fx_2_7_machine_options(MachineClass *m) 542 { 543 pc_i440fx_2_8_machine_options(m); 544 compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len); 545 compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len); 546 } 547 548 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL, 549 pc_i440fx_2_7_machine_options); 550 551 static void pc_i440fx_2_6_machine_options(MachineClass *m) 552 { 553 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 554 555 pc_i440fx_2_7_machine_options(m); 556 pcmc->legacy_cpu_hotplug = true; 557 pcmc->linuxboot_dma_enabled = false; 558 compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len); 559 compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len); 560 } 561 562 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL, 563 pc_i440fx_2_6_machine_options); 564 565 static void pc_i440fx_2_5_machine_options(MachineClass *m) 566 { 567 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 568 569 pc_i440fx_2_6_machine_options(m); 570 pcmc->save_tsc_khz = false; 571 m->legacy_fw_cfg_order = 1; 572 compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len); 573 compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len); 574 } 575 576 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL, 577 pc_i440fx_2_5_machine_options); 578 579 static void pc_i440fx_2_4_machine_options(MachineClass *m) 580 { 581 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 582 583 pc_i440fx_2_5_machine_options(m); 584 m->hw_version = "2.4.0"; 585 pcmc->broken_reserved_end = true; 586 compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len); 587 compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len); 588 } 589 590 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL, 591 pc_i440fx_2_4_machine_options) 592 593 static void pc_i440fx_2_3_machine_options(MachineClass *m) 594 { 595 pc_i440fx_2_4_machine_options(m); 596 m->hw_version = "2.3.0"; 597 compat_props_add(m->compat_props, hw_compat_2_3, hw_compat_2_3_len); 598 compat_props_add(m->compat_props, pc_compat_2_3, pc_compat_2_3_len); 599 } 600 601 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3_fn, 602 pc_i440fx_2_3_machine_options); 603 604 static void pc_i440fx_2_2_machine_options(MachineClass *m) 605 { 606 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 607 608 pc_i440fx_2_3_machine_options(m); 609 m->hw_version = "2.2.0"; 610 m->default_machine_opts = "firmware=bios-256k.bin,suppress-vmdesc=on"; 611 compat_props_add(m->compat_props, hw_compat_2_2, hw_compat_2_2_len); 612 compat_props_add(m->compat_props, pc_compat_2_2, pc_compat_2_2_len); 613 pcmc->rsdp_in_ram = false; 614 } 615 616 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2_fn, 617 pc_i440fx_2_2_machine_options); 618 619 static void pc_i440fx_2_1_machine_options(MachineClass *m) 620 { 621 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 622 623 pc_i440fx_2_2_machine_options(m); 624 m->hw_version = "2.1.0"; 625 m->default_display = NULL; 626 compat_props_add(m->compat_props, hw_compat_2_1, hw_compat_2_1_len); 627 compat_props_add(m->compat_props, pc_compat_2_1, pc_compat_2_1_len); 628 pcmc->smbios_uuid_encoded = false; 629 pcmc->enforce_aligned_dimm = false; 630 } 631 632 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1_fn, 633 pc_i440fx_2_1_machine_options); 634 635 static void pc_i440fx_2_0_machine_options(MachineClass *m) 636 { 637 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 638 639 pc_i440fx_2_1_machine_options(m); 640 m->hw_version = "2.0.0"; 641 compat_props_add(m->compat_props, pc_compat_2_0, pc_compat_2_0_len); 642 pcmc->smbios_legacy_mode = true; 643 pcmc->has_reserved_memory = false; 644 /* This value depends on the actual DSDT and SSDT compiled into 645 * the source QEMU; unfortunately it depends on the binary and 646 * not on the machine type, so we cannot make pc-i440fx-1.7 work on 647 * both QEMU 1.7 and QEMU 2.0. 648 * 649 * Large variations cause migration to fail for more than one 650 * consecutive value of the "-smp" maxcpus option. 651 * 652 * For small variations of the kind caused by different iasl versions, 653 * the 4k rounding usually leaves slack. However, there could be still 654 * one or two values that break. For QEMU 1.7 and QEMU 2.0 the 655 * slack is only ~10 bytes before one "-smp maxcpus" value breaks! 656 * 657 * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on 658 * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. 659 */ 660 pcmc->legacy_acpi_table_size = 6652; 661 pcmc->acpi_data_size = 0x10000; 662 } 663 664 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0_fn, 665 pc_i440fx_2_0_machine_options); 666 667 static void pc_i440fx_1_7_machine_options(MachineClass *m) 668 { 669 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 670 671 pc_i440fx_2_0_machine_options(m); 672 m->hw_version = "1.7.0"; 673 m->default_machine_opts = NULL; 674 m->option_rom_has_mr = true; 675 compat_props_add(m->compat_props, pc_compat_1_7, pc_compat_1_7_len); 676 pcmc->smbios_defaults = false; 677 pcmc->gigabyte_align = false; 678 pcmc->legacy_acpi_table_size = 6414; 679 } 680 681 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7_fn, 682 pc_i440fx_1_7_machine_options); 683 684 static void pc_i440fx_1_6_machine_options(MachineClass *m) 685 { 686 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 687 688 pc_i440fx_1_7_machine_options(m); 689 m->hw_version = "1.6.0"; 690 m->rom_file_has_mr = false; 691 compat_props_add(m->compat_props, pc_compat_1_6, pc_compat_1_6_len); 692 pcmc->has_acpi_build = false; 693 } 694 695 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6_fn, 696 pc_i440fx_1_6_machine_options); 697 698 static void pc_i440fx_1_5_machine_options(MachineClass *m) 699 { 700 pc_i440fx_1_6_machine_options(m); 701 m->hw_version = "1.5.0"; 702 compat_props_add(m->compat_props, pc_compat_1_5, pc_compat_1_5_len); 703 } 704 705 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5_fn, 706 pc_i440fx_1_5_machine_options); 707 708 static void pc_i440fx_1_4_machine_options(MachineClass *m) 709 { 710 pc_i440fx_1_5_machine_options(m); 711 m->hw_version = "1.4.0"; 712 m->hot_add_cpu = NULL; 713 compat_props_add(m->compat_props, pc_compat_1_4, pc_compat_1_4_len); 714 } 715 716 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4_fn, 717 pc_i440fx_1_4_machine_options); 718 719 static void pc_i440fx_1_3_machine_options(MachineClass *m) 720 { 721 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 722 static GlobalProperty compat[] = { 723 PC_CPU_MODEL_IDS("1.3.0") 724 { "usb-tablet", "usb_version", "1" }, 725 { "virtio-net-pci", "ctrl_mac_addr", "off" }, 726 { "virtio-net-pci", "mq", "off" }, 727 { "e1000", "autonegotiation", "off" }, 728 }; 729 730 pc_i440fx_1_4_machine_options(m); 731 m->hw_version = "1.3.0"; 732 pcmc->compat_apic_id_mode = true; 733 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 734 } 735 736 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3, 737 pc_i440fx_1_3_machine_options); 738 739 740 static void pc_i440fx_1_2_machine_options(MachineClass *m) 741 { 742 static GlobalProperty compat[] = { 743 PC_CPU_MODEL_IDS("1.2.0") 744 { "nec-usb-xhci", "msi", "off" }, 745 { "nec-usb-xhci", "msix", "off" }, 746 { "qxl", "revision", "3" }, 747 { "qxl-vga", "revision", "3" }, 748 { "VGA", "mmio", "off" }, 749 }; 750 751 pc_i440fx_1_3_machine_options(m); 752 m->hw_version = "1.2.0"; 753 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 754 } 755 756 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2, 757 pc_i440fx_1_2_machine_options); 758 759 760 static void pc_i440fx_1_1_machine_options(MachineClass *m) 761 { 762 static GlobalProperty compat[] = { 763 PC_CPU_MODEL_IDS("1.1.0") 764 { "virtio-scsi-pci", "hotplug", "off" }, 765 { "virtio-scsi-pci", "param_change", "off" }, 766 { "VGA", "vgamem_mb", "8" }, 767 { "vmware-svga", "vgamem_mb", "8" }, 768 { "qxl-vga", "vgamem_mb", "8" }, 769 { "qxl", "vgamem_mb", "8" }, 770 { "virtio-blk-pci", "config-wce", "off" }, 771 }; 772 773 pc_i440fx_1_2_machine_options(m); 774 m->hw_version = "1.1.0"; 775 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 776 } 777 778 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2, 779 pc_i440fx_1_1_machine_options); 780 781 static void pc_i440fx_1_0_machine_options(MachineClass *m) 782 { 783 static GlobalProperty compat[] = { 784 PC_CPU_MODEL_IDS("1.0") 785 { TYPE_ISA_FDC, "check_media_rate", "off" }, 786 { "virtio-balloon-pci", "class", stringify(PCI_CLASS_MEMORY_RAM) }, 787 { "apic-common", "vapic", "off" }, 788 { TYPE_USB_DEVICE, "full-path", "no" }, 789 }; 790 791 pc_i440fx_1_1_machine_options(m); 792 m->hw_version = "1.0"; 793 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 794 } 795 796 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2, 797 pc_i440fx_1_0_machine_options); 798 799 800 static void pc_i440fx_0_15_machine_options(MachineClass *m) 801 { 802 static GlobalProperty compat[] = { 803 PC_CPU_MODEL_IDS("0.15") 804 }; 805 806 pc_i440fx_1_0_machine_options(m); 807 m->hw_version = "0.15"; 808 m->deprecation_reason = "use a newer machine type instead"; 809 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 810 } 811 812 DEFINE_I440FX_MACHINE(v0_15, "pc-0.15", pc_compat_1_2, 813 pc_i440fx_0_15_machine_options); 814 815 816 static void pc_i440fx_0_14_machine_options(MachineClass *m) 817 { 818 static GlobalProperty compat[] = { 819 PC_CPU_MODEL_IDS("0.14") 820 { "virtio-blk-pci", "event_idx", "off" }, 821 { "virtio-serial-pci", "event_idx", "off" }, 822 { "virtio-net-pci", "event_idx", "off" }, 823 { "virtio-balloon-pci", "event_idx", "off" }, 824 { "qxl", "revision", "2" }, 825 { "qxl-vga", "revision", "2" }, 826 }; 827 828 pc_i440fx_0_15_machine_options(m); 829 m->hw_version = "0.14"; 830 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 831 } 832 833 DEFINE_I440FX_MACHINE(v0_14, "pc-0.14", pc_compat_1_2, 834 pc_i440fx_0_14_machine_options); 835 836 static void pc_i440fx_0_13_machine_options(MachineClass *m) 837 { 838 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 839 static GlobalProperty compat[] = { 840 PC_CPU_MODEL_IDS("0.13") 841 { TYPE_PCI_DEVICE, "command_serr_enable", "off" }, 842 { "AC97", "use_broken_id", "1" }, 843 { "virtio-9p-pci", "vectors", "0" }, 844 { "VGA", "rombar", "0" }, 845 { "vmware-svga", "rombar", "0" }, 846 }; 847 848 pc_i440fx_0_14_machine_options(m); 849 m->hw_version = "0.13"; 850 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 851 pcmc->kvmclock_enabled = false; 852 } 853 854 DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13, 855 pc_i440fx_0_13_machine_options); 856 857 static void pc_i440fx_0_12_machine_options(MachineClass *m) 858 { 859 static GlobalProperty compat[] = { 860 PC_CPU_MODEL_IDS("0.12") 861 { "virtio-serial-pci", "max_ports", "1" }, 862 { "virtio-serial-pci", "vectors", "0" }, 863 { "usb-mouse", "serial", "1" }, 864 { "usb-tablet", "serial", "1" }, 865 { "usb-kbd", "serial", "1" }, 866 }; 867 868 pc_i440fx_0_13_machine_options(m); 869 m->hw_version = "0.12"; 870 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 871 } 872 873 DEFINE_I440FX_MACHINE(v0_12, "pc-0.12", pc_compat_0_13, 874 pc_i440fx_0_12_machine_options); 875 876 typedef struct { 877 uint16_t gpu_device_id; 878 uint16_t pch_device_id; 879 uint8_t pch_revision_id; 880 } IGDDeviceIDInfo; 881 882 /* In real world different GPU should have different PCH. But actually 883 * the different PCH DIDs likely map to different PCH SKUs. We do the 884 * same thing for the GPU. For PCH, the different SKUs are going to be 885 * all the same silicon design and implementation, just different 886 * features turn on and off with fuses. The SW interfaces should be 887 * consistent across all SKUs in a given family (eg LPT). But just same 888 * features may not be supported. 889 * 890 * Most of these different PCH features probably don't matter to the 891 * Gfx driver, but obviously any difference in display port connections 892 * will so it should be fine with any PCH in case of passthrough. 893 * 894 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell) 895 * scenarios, 0x9cc3 for BDW(Broadwell). 896 */ 897 static const IGDDeviceIDInfo igd_combo_id_infos[] = { 898 /* HSW Classic */ 899 {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */ 900 {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */ 901 {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */ 902 {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */ 903 {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */ 904 /* HSW ULT */ 905 {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */ 906 {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */ 907 {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */ 908 {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */ 909 {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */ 910 {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */ 911 /* HSW CRW */ 912 {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */ 913 {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */ 914 /* HSW Server */ 915 {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */ 916 /* HSW SRVR */ 917 {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */ 918 /* BSW */ 919 {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */ 920 {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */ 921 {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */ 922 {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */ 923 {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */ 924 {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */ 925 {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */ 926 {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */ 927 {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */ 928 {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */ 929 {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */ 930 }; 931 932 static void isa_bridge_class_init(ObjectClass *klass, void *data) 933 { 934 DeviceClass *dc = DEVICE_CLASS(klass); 935 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 936 937 dc->desc = "ISA bridge faked to support IGD PT"; 938 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 939 k->vendor_id = PCI_VENDOR_ID_INTEL; 940 k->class_id = PCI_CLASS_BRIDGE_ISA; 941 }; 942 943 static TypeInfo isa_bridge_info = { 944 .name = "igd-passthrough-isa-bridge", 945 .parent = TYPE_PCI_DEVICE, 946 .instance_size = sizeof(PCIDevice), 947 .class_init = isa_bridge_class_init, 948 .interfaces = (InterfaceInfo[]) { 949 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 950 { }, 951 }, 952 }; 953 954 static void pt_graphics_register_types(void) 955 { 956 type_register_static(&isa_bridge_info); 957 } 958 type_init(pt_graphics_register_types) 959 960 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id) 961 { 962 struct PCIDevice *bridge_dev; 963 int i, num; 964 uint16_t pch_dev_id = 0xffff; 965 uint8_t pch_rev_id; 966 967 num = ARRAY_SIZE(igd_combo_id_infos); 968 for (i = 0; i < num; i++) { 969 if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) { 970 pch_dev_id = igd_combo_id_infos[i].pch_device_id; 971 pch_rev_id = igd_combo_id_infos[i].pch_revision_id; 972 } 973 } 974 975 if (pch_dev_id == 0xffff) { 976 return; 977 } 978 979 /* Currently IGD drivers always need to access PCH by 1f.0. */ 980 bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), 981 "igd-passthrough-isa-bridge"); 982 983 /* 984 * Note that vendor id is always PCI_VENDOR_ID_INTEL. 985 */ 986 if (!bridge_dev) { 987 fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n"); 988 return; 989 } 990 pci_config_set_device_id(bridge_dev->config, pch_dev_id); 991 pci_config_set_revision(bridge_dev->config, pch_rev_id); 992 } 993 994 static void isapc_machine_options(MachineClass *m) 995 { 996 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 997 m->desc = "ISA-only PC"; 998 m->max_cpus = 1; 999 m->option_rom_has_mr = true; 1000 m->rom_file_has_mr = false; 1001 pcmc->pci_enabled = false; 1002 pcmc->has_acpi_build = false; 1003 pcmc->smbios_defaults = false; 1004 pcmc->gigabyte_align = false; 1005 pcmc->smbios_legacy_mode = true; 1006 pcmc->has_reserved_memory = false; 1007 pcmc->default_nic_model = "ne2k_isa"; 1008 m->default_cpu_type = X86_CPU_TYPE_NAME("486"); 1009 } 1010 1011 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, 1012 isapc_machine_options); 1013 1014 1015 #ifdef CONFIG_XEN 1016 static void xenfv_machine_options(MachineClass *m) 1017 { 1018 m->desc = "Xen Fully-virtualized PC"; 1019 m->max_cpus = HVM_MAX_VCPUS; 1020 m->default_machine_opts = "accel=xen"; 1021 } 1022 1023 DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init, 1024 xenfv_machine_options); 1025 #endif 1026