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/loader.h" 30 #include "hw/i386/x86.h" 31 #include "hw/i386/pc.h" 32 #include "hw/i386/apic.h" 33 #include "hw/pci-host/i440fx.h" 34 #include "hw/southbridge/piix.h" 35 #include "hw/display/ramfb.h" 36 #include "hw/firmware/smbios.h" 37 #include "hw/pci/pci.h" 38 #include "hw/pci/pci_ids.h" 39 #include "hw/usb.h" 40 #include "net/net.h" 41 #include "hw/ide/pci.h" 42 #include "hw/irq.h" 43 #include "sysemu/kvm.h" 44 #include "hw/kvm/clock.h" 45 #include "sysemu/sysemu.h" 46 #include "hw/sysbus.h" 47 #include "sysemu/arch_init.h" 48 #include "hw/i2c/smbus_eeprom.h" 49 #include "hw/xen/xen.h" 50 #include "exec/memory.h" 51 #include "exec/address-spaces.h" 52 #include "hw/acpi/acpi.h" 53 #include "cpu.h" 54 #include "qapi/error.h" 55 #include "qemu/error-report.h" 56 #ifdef CONFIG_XEN 57 #include <xen/hvm/hvm_info_table.h> 58 #include "hw/xen/xen_pt.h" 59 #endif 60 #include "migration/global_state.h" 61 #include "migration/misc.h" 62 #include "sysemu/numa.h" 63 #include "hw/mem/nvdimm.h" 64 #include "hw/i386/acpi-build.h" 65 66 #define MAX_IDE_BUS 2 67 68 #ifdef CONFIG_IDE_ISA 69 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; 70 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; 71 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; 72 #endif 73 74 /* PC hardware initialisation */ 75 static void pc_init1(MachineState *machine, 76 const char *host_type, const char *pci_type) 77 { 78 PCMachineState *pcms = PC_MACHINE(machine); 79 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 80 X86MachineState *x86ms = X86_MACHINE(machine); 81 MemoryRegion *system_memory = get_system_memory(); 82 MemoryRegion *system_io = get_system_io(); 83 PCIBus *pci_bus; 84 ISABus *isa_bus; 85 PCII440FXState *i440fx_state; 86 int piix3_devfn = -1; 87 qemu_irq smi_irq; 88 GSIState *gsi_state; 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 (!x86ms->max_ram_below_4g) { 131 x86ms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */ 132 } 133 lowmem = x86ms->max_ram_below_4g; 134 if (machine->ram_size >= x86ms->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 x86ms->max_ram_below_4g); 144 } 145 } 146 } 147 148 if (machine->ram_size >= lowmem) { 149 x86ms->above_4g_mem_size = machine->ram_size - lowmem; 150 x86ms->below_4g_mem_size = lowmem; 151 } else { 152 x86ms->above_4g_mem_size = 0; 153 x86ms->below_4g_mem_size = machine->ram_size; 154 } 155 } 156 157 x86_cpus_init(x86ms, pcmc->default_cpu_version); 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 = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled); 193 194 if (pcmc->pci_enabled) { 195 PIIX3State *piix3; 196 197 pci_bus = i440fx_init(host_type, 198 pci_type, 199 &i440fx_state, 200 system_memory, system_io, machine->ram_size, 201 x86ms->below_4g_mem_size, 202 x86ms->above_4g_mem_size, 203 pci_memory, ram_memory); 204 pcms->bus = pci_bus; 205 206 piix3 = piix3_create(pci_bus, &isa_bus); 207 piix3->pic = x86ms->gsi; 208 piix3_devfn = piix3->dev.devfn; 209 } else { 210 pci_bus = NULL; 211 i440fx_state = NULL; 212 isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, 213 &error_abort); 214 no_hpet = 1; 215 } 216 isa_bus_irqs(isa_bus, x86ms->gsi); 217 218 pc_i8259_create(isa_bus, gsi_state->i8259_irq); 219 220 if (pcmc->pci_enabled) { 221 ioapic_init_gsi(gsi_state, "i440fx"); 222 } 223 224 if (tcg_enabled()) { 225 x86_register_ferr_irq(x86ms->gsi[13]); 226 } 227 228 pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL); 229 230 assert(pcms->vmport != ON_OFF_AUTO__MAX); 231 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 232 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 233 } 234 235 /* init basic PC hardware */ 236 pc_basic_device_init(isa_bus, x86ms->gsi, &rtc_state, true, 237 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit_enabled, 238 0x4); 239 240 pc_nic_init(pcmc, isa_bus, pci_bus); 241 242 if (pcmc->pci_enabled) { 243 PCIDevice *dev; 244 245 dev = pci_create_simple(pci_bus, piix3_devfn + 1, 246 xen_enabled() ? "piix3-ide-xen" : "piix3-ide"); 247 pci_ide_create_devs(dev); 248 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); 249 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); 250 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 251 } 252 #ifdef CONFIG_IDE_ISA 253 else { 254 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 255 int i; 256 257 ide_drive_get(hd, ARRAY_SIZE(hd)); 258 for (i = 0; i < MAX_IDE_BUS; i++) { 259 ISADevice *dev; 260 char busname[] = "ide.0"; 261 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], 262 ide_irq[i], 263 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); 264 /* 265 * The ide bus name is ide.0 for the first bus and ide.1 for the 266 * second one. 267 */ 268 busname[4] = '0' + i; 269 idebus[i] = qdev_get_child_bus(DEVICE(dev), busname); 270 } 271 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 272 } 273 #endif 274 275 if (pcmc->pci_enabled && machine_usb(machine)) { 276 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci"); 277 } 278 279 if (pcmc->pci_enabled && x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) { 280 DeviceState *piix4_pm; 281 282 smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0); 283 /* TODO: Populate SPD eeprom data. */ 284 pcms->smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, 285 x86ms->gsi[9], smi_irq, 286 x86_machine_is_smm_enabled(x86ms), 287 &piix4_pm); 288 smbus_eeprom_init(pcms->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 (machine->nvdimms_state->is_enabled) { 300 nvdimm_init_acpi_state(machine->nvdimms_state, system_io, 301 x86_nvdimm_acpi_dsmio, 302 x86ms->fw_cfg, OBJECT(pcms)); 303 } 304 } 305 306 /* Looking for a pc_compat_2_4() function? It doesn't exist. 307 * pc_compat_*() functions that run on machine-init time and 308 * change global QEMU state are deprecated. Please don't create 309 * one, and implement any pc-*-2.4 (and newer) compat code in 310 * hw_compat_*, pc_compat_*, or * pc_*_machine_options(). 311 */ 312 313 static void pc_compat_2_3_fn(MachineState *machine) 314 { 315 X86MachineState *x86ms = X86_MACHINE(machine); 316 if (kvm_enabled()) { 317 x86ms->smm = ON_OFF_AUTO_OFF; 318 } 319 } 320 321 static void pc_compat_2_2_fn(MachineState *machine) 322 { 323 pc_compat_2_3_fn(machine); 324 } 325 326 static void pc_compat_2_1_fn(MachineState *machine) 327 { 328 pc_compat_2_2_fn(machine); 329 x86_cpu_change_kvm_default("svm", NULL); 330 } 331 332 static void pc_compat_2_0_fn(MachineState *machine) 333 { 334 pc_compat_2_1_fn(machine); 335 } 336 337 static void pc_compat_1_7_fn(MachineState *machine) 338 { 339 pc_compat_2_0_fn(machine); 340 x86_cpu_change_kvm_default("x2apic", NULL); 341 } 342 343 static void pc_compat_1_6_fn(MachineState *machine) 344 { 345 pc_compat_1_7_fn(machine); 346 } 347 348 static void pc_compat_1_5_fn(MachineState *machine) 349 { 350 pc_compat_1_6_fn(machine); 351 } 352 353 static void pc_compat_1_4_fn(MachineState *machine) 354 { 355 pc_compat_1_5_fn(machine); 356 } 357 358 static void pc_compat_1_3(MachineState *machine) 359 { 360 pc_compat_1_4_fn(machine); 361 } 362 363 /* PC compat function for pc-1.0 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 static void pc_init_isa(MachineState *machine) 371 { 372 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); 373 } 374 375 #ifdef CONFIG_XEN 376 static void pc_xen_hvm_init_pci(MachineState *machine) 377 { 378 const char *pci_type = has_igd_gfx_passthru ? 379 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE; 380 381 pc_init1(machine, 382 TYPE_I440FX_PCI_HOST_BRIDGE, 383 pci_type); 384 } 385 386 static void pc_xen_hvm_init(MachineState *machine) 387 { 388 PCMachineState *pcms = PC_MACHINE(machine); 389 390 if (!xen_enabled()) { 391 error_report("xenfv machine requires the xen accelerator"); 392 exit(1); 393 } 394 395 pc_xen_hvm_init_pci(machine); 396 pci_create_simple(pcms->bus, -1, "xen-platform"); 397 } 398 #endif 399 400 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \ 401 static void pc_init_##suffix(MachineState *machine) \ 402 { \ 403 void (*compat)(MachineState *m) = (compatfn); \ 404 if (compat) { \ 405 compat(machine); \ 406 } \ 407 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \ 408 TYPE_I440FX_PCI_DEVICE); \ 409 } \ 410 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 411 412 static void pc_i440fx_machine_options(MachineClass *m) 413 { 414 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 415 pcmc->default_nic_model = "e1000"; 416 417 m->family = "pc_piix"; 418 m->desc = "Standard PC (i440FX + PIIX, 1996)"; 419 m->default_machine_opts = "firmware=bios-256k.bin"; 420 m->default_display = "std"; 421 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); 422 } 423 424 static void pc_i440fx_5_0_machine_options(MachineClass *m) 425 { 426 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 427 pc_i440fx_machine_options(m); 428 m->alias = "pc"; 429 m->is_default = true; 430 pcmc->default_cpu_version = 1; 431 } 432 433 DEFINE_I440FX_MACHINE(v5_0, "pc-i440fx-5.0", NULL, 434 pc_i440fx_5_0_machine_options); 435 436 static void pc_i440fx_4_2_machine_options(MachineClass *m) 437 { 438 pc_i440fx_5_0_machine_options(m); 439 m->alias = NULL; 440 m->is_default = false; 441 compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len); 442 compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len); 443 } 444 445 DEFINE_I440FX_MACHINE(v4_2, "pc-i440fx-4.2", NULL, 446 pc_i440fx_4_2_machine_options); 447 448 static void pc_i440fx_4_1_machine_options(MachineClass *m) 449 { 450 pc_i440fx_4_2_machine_options(m); 451 m->alias = NULL; 452 m->is_default = false; 453 compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len); 454 compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len); 455 } 456 457 DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL, 458 pc_i440fx_4_1_machine_options); 459 460 static void pc_i440fx_4_0_machine_options(MachineClass *m) 461 { 462 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 463 pc_i440fx_4_1_machine_options(m); 464 m->alias = NULL; 465 m->is_default = false; 466 pcmc->default_cpu_version = CPU_VERSION_LEGACY; 467 compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len); 468 compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len); 469 } 470 471 DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL, 472 pc_i440fx_4_0_machine_options); 473 474 static void pc_i440fx_3_1_machine_options(MachineClass *m) 475 { 476 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 477 478 pc_i440fx_4_0_machine_options(m); 479 m->is_default = false; 480 pcmc->do_not_add_smb_acpi = true; 481 m->smbus_no_migration_support = true; 482 m->alias = NULL; 483 pcmc->pvh_enabled = false; 484 compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len); 485 compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len); 486 } 487 488 DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL, 489 pc_i440fx_3_1_machine_options); 490 491 static void pc_i440fx_3_0_machine_options(MachineClass *m) 492 { 493 pc_i440fx_3_1_machine_options(m); 494 compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len); 495 compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len); 496 } 497 498 DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL, 499 pc_i440fx_3_0_machine_options); 500 501 static void pc_i440fx_2_12_machine_options(MachineClass *m) 502 { 503 pc_i440fx_3_0_machine_options(m); 504 compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len); 505 compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len); 506 } 507 508 DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL, 509 pc_i440fx_2_12_machine_options); 510 511 static void pc_i440fx_2_11_machine_options(MachineClass *m) 512 { 513 pc_i440fx_2_12_machine_options(m); 514 compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len); 515 compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len); 516 } 517 518 DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL, 519 pc_i440fx_2_11_machine_options); 520 521 static void pc_i440fx_2_10_machine_options(MachineClass *m) 522 { 523 pc_i440fx_2_11_machine_options(m); 524 compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len); 525 compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len); 526 m->auto_enable_numa_with_memhp = false; 527 } 528 529 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL, 530 pc_i440fx_2_10_machine_options); 531 532 static void pc_i440fx_2_9_machine_options(MachineClass *m) 533 { 534 pc_i440fx_2_10_machine_options(m); 535 compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len); 536 compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len); 537 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 538 } 539 540 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL, 541 pc_i440fx_2_9_machine_options); 542 543 static void pc_i440fx_2_8_machine_options(MachineClass *m) 544 { 545 pc_i440fx_2_9_machine_options(m); 546 compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len); 547 compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len); 548 } 549 550 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL, 551 pc_i440fx_2_8_machine_options); 552 553 static void pc_i440fx_2_7_machine_options(MachineClass *m) 554 { 555 pc_i440fx_2_8_machine_options(m); 556 compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len); 557 compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len); 558 } 559 560 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL, 561 pc_i440fx_2_7_machine_options); 562 563 static void pc_i440fx_2_6_machine_options(MachineClass *m) 564 { 565 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 566 567 pc_i440fx_2_7_machine_options(m); 568 pcmc->legacy_cpu_hotplug = true; 569 pcmc->linuxboot_dma_enabled = false; 570 compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len); 571 compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len); 572 } 573 574 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL, 575 pc_i440fx_2_6_machine_options); 576 577 static void pc_i440fx_2_5_machine_options(MachineClass *m) 578 { 579 X86MachineClass *x86mc = X86_MACHINE_CLASS(m); 580 581 pc_i440fx_2_6_machine_options(m); 582 x86mc->save_tsc_khz = false; 583 m->legacy_fw_cfg_order = 1; 584 compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len); 585 compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len); 586 } 587 588 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL, 589 pc_i440fx_2_5_machine_options); 590 591 static void pc_i440fx_2_4_machine_options(MachineClass *m) 592 { 593 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 594 595 pc_i440fx_2_5_machine_options(m); 596 m->hw_version = "2.4.0"; 597 pcmc->broken_reserved_end = true; 598 compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len); 599 compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len); 600 } 601 602 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL, 603 pc_i440fx_2_4_machine_options) 604 605 static void pc_i440fx_2_3_machine_options(MachineClass *m) 606 { 607 pc_i440fx_2_4_machine_options(m); 608 m->hw_version = "2.3.0"; 609 compat_props_add(m->compat_props, hw_compat_2_3, hw_compat_2_3_len); 610 compat_props_add(m->compat_props, pc_compat_2_3, pc_compat_2_3_len); 611 } 612 613 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3_fn, 614 pc_i440fx_2_3_machine_options); 615 616 static void pc_i440fx_2_2_machine_options(MachineClass *m) 617 { 618 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 619 620 pc_i440fx_2_3_machine_options(m); 621 m->hw_version = "2.2.0"; 622 m->default_machine_opts = "firmware=bios-256k.bin,suppress-vmdesc=on"; 623 compat_props_add(m->compat_props, hw_compat_2_2, hw_compat_2_2_len); 624 compat_props_add(m->compat_props, pc_compat_2_2, pc_compat_2_2_len); 625 pcmc->rsdp_in_ram = false; 626 } 627 628 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2_fn, 629 pc_i440fx_2_2_machine_options); 630 631 static void pc_i440fx_2_1_machine_options(MachineClass *m) 632 { 633 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 634 635 pc_i440fx_2_2_machine_options(m); 636 m->hw_version = "2.1.0"; 637 m->default_display = NULL; 638 compat_props_add(m->compat_props, hw_compat_2_1, hw_compat_2_1_len); 639 compat_props_add(m->compat_props, pc_compat_2_1, pc_compat_2_1_len); 640 pcmc->smbios_uuid_encoded = false; 641 pcmc->enforce_aligned_dimm = false; 642 } 643 644 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1_fn, 645 pc_i440fx_2_1_machine_options); 646 647 static void pc_i440fx_2_0_machine_options(MachineClass *m) 648 { 649 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 650 651 pc_i440fx_2_1_machine_options(m); 652 m->hw_version = "2.0.0"; 653 compat_props_add(m->compat_props, pc_compat_2_0, pc_compat_2_0_len); 654 pcmc->smbios_legacy_mode = true; 655 pcmc->has_reserved_memory = false; 656 /* This value depends on the actual DSDT and SSDT compiled into 657 * the source QEMU; unfortunately it depends on the binary and 658 * not on the machine type, so we cannot make pc-i440fx-1.7 work on 659 * both QEMU 1.7 and QEMU 2.0. 660 * 661 * Large variations cause migration to fail for more than one 662 * consecutive value of the "-smp" maxcpus option. 663 * 664 * For small variations of the kind caused by different iasl versions, 665 * the 4k rounding usually leaves slack. However, there could be still 666 * one or two values that break. For QEMU 1.7 and QEMU 2.0 the 667 * slack is only ~10 bytes before one "-smp maxcpus" value breaks! 668 * 669 * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on 670 * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. 671 */ 672 pcmc->legacy_acpi_table_size = 6652; 673 pcmc->acpi_data_size = 0x10000; 674 } 675 676 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0_fn, 677 pc_i440fx_2_0_machine_options); 678 679 static void pc_i440fx_1_7_machine_options(MachineClass *m) 680 { 681 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 682 683 pc_i440fx_2_0_machine_options(m); 684 m->hw_version = "1.7.0"; 685 m->default_machine_opts = NULL; 686 m->option_rom_has_mr = true; 687 compat_props_add(m->compat_props, pc_compat_1_7, pc_compat_1_7_len); 688 pcmc->smbios_defaults = false; 689 pcmc->gigabyte_align = false; 690 pcmc->legacy_acpi_table_size = 6414; 691 } 692 693 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7_fn, 694 pc_i440fx_1_7_machine_options); 695 696 static void pc_i440fx_1_6_machine_options(MachineClass *m) 697 { 698 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 699 700 pc_i440fx_1_7_machine_options(m); 701 m->hw_version = "1.6.0"; 702 m->rom_file_has_mr = false; 703 compat_props_add(m->compat_props, pc_compat_1_6, pc_compat_1_6_len); 704 pcmc->has_acpi_build = false; 705 } 706 707 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6_fn, 708 pc_i440fx_1_6_machine_options); 709 710 static void pc_i440fx_1_5_machine_options(MachineClass *m) 711 { 712 pc_i440fx_1_6_machine_options(m); 713 m->hw_version = "1.5.0"; 714 compat_props_add(m->compat_props, pc_compat_1_5, pc_compat_1_5_len); 715 } 716 717 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5_fn, 718 pc_i440fx_1_5_machine_options); 719 720 static void pc_i440fx_1_4_machine_options(MachineClass *m) 721 { 722 pc_i440fx_1_5_machine_options(m); 723 m->hw_version = "1.4.0"; 724 m->hot_add_cpu = NULL; 725 compat_props_add(m->compat_props, pc_compat_1_4, pc_compat_1_4_len); 726 } 727 728 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4_fn, 729 pc_i440fx_1_4_machine_options); 730 731 static void pc_i440fx_1_3_machine_options(MachineClass *m) 732 { 733 X86MachineClass *x86mc = X86_MACHINE_CLASS(m); 734 static GlobalProperty compat[] = { 735 PC_CPU_MODEL_IDS("1.3.0") 736 { "usb-tablet", "usb_version", "1" }, 737 { "virtio-net-pci", "ctrl_mac_addr", "off" }, 738 { "virtio-net-pci", "mq", "off" }, 739 { "e1000", "autonegotiation", "off" }, 740 }; 741 742 pc_i440fx_1_4_machine_options(m); 743 m->hw_version = "1.3.0"; 744 m->deprecation_reason = "use a newer machine type instead"; 745 x86mc->compat_apic_id_mode = true; 746 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 747 } 748 749 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3, 750 pc_i440fx_1_3_machine_options); 751 752 753 static void pc_i440fx_1_2_machine_options(MachineClass *m) 754 { 755 static GlobalProperty compat[] = { 756 PC_CPU_MODEL_IDS("1.2.0") 757 { "nec-usb-xhci", "msi", "off" }, 758 { "nec-usb-xhci", "msix", "off" }, 759 { "qxl", "revision", "3" }, 760 { "qxl-vga", "revision", "3" }, 761 { "VGA", "mmio", "off" }, 762 }; 763 764 pc_i440fx_1_3_machine_options(m); 765 m->hw_version = "1.2.0"; 766 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 767 } 768 769 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2, 770 pc_i440fx_1_2_machine_options); 771 772 773 static void pc_i440fx_1_1_machine_options(MachineClass *m) 774 { 775 static GlobalProperty compat[] = { 776 PC_CPU_MODEL_IDS("1.1.0") 777 { "virtio-scsi-pci", "hotplug", "off" }, 778 { "virtio-scsi-pci", "param_change", "off" }, 779 { "VGA", "vgamem_mb", "8" }, 780 { "vmware-svga", "vgamem_mb", "8" }, 781 { "qxl-vga", "vgamem_mb", "8" }, 782 { "qxl", "vgamem_mb", "8" }, 783 { "virtio-blk-pci", "config-wce", "off" }, 784 }; 785 786 pc_i440fx_1_2_machine_options(m); 787 m->hw_version = "1.1.0"; 788 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 789 } 790 791 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2, 792 pc_i440fx_1_1_machine_options); 793 794 static void pc_i440fx_1_0_machine_options(MachineClass *m) 795 { 796 static GlobalProperty compat[] = { 797 PC_CPU_MODEL_IDS("1.0") 798 { TYPE_ISA_FDC, "check_media_rate", "off" }, 799 { "virtio-balloon-pci", "class", stringify(PCI_CLASS_MEMORY_RAM) }, 800 { "apic-common", "vapic", "off" }, 801 { TYPE_USB_DEVICE, "full-path", "no" }, 802 }; 803 804 pc_i440fx_1_1_machine_options(m); 805 m->hw_version = "1.0"; 806 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 807 } 808 809 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2, 810 pc_i440fx_1_0_machine_options); 811 812 813 typedef struct { 814 uint16_t gpu_device_id; 815 uint16_t pch_device_id; 816 uint8_t pch_revision_id; 817 } IGDDeviceIDInfo; 818 819 /* In real world different GPU should have different PCH. But actually 820 * the different PCH DIDs likely map to different PCH SKUs. We do the 821 * same thing for the GPU. For PCH, the different SKUs are going to be 822 * all the same silicon design and implementation, just different 823 * features turn on and off with fuses. The SW interfaces should be 824 * consistent across all SKUs in a given family (eg LPT). But just same 825 * features may not be supported. 826 * 827 * Most of these different PCH features probably don't matter to the 828 * Gfx driver, but obviously any difference in display port connections 829 * will so it should be fine with any PCH in case of passthrough. 830 * 831 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell) 832 * scenarios, 0x9cc3 for BDW(Broadwell). 833 */ 834 static const IGDDeviceIDInfo igd_combo_id_infos[] = { 835 /* HSW Classic */ 836 {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */ 837 {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */ 838 {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */ 839 {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */ 840 {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */ 841 /* HSW ULT */ 842 {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */ 843 {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */ 844 {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */ 845 {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */ 846 {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */ 847 {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */ 848 /* HSW CRW */ 849 {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */ 850 {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */ 851 /* HSW Server */ 852 {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */ 853 /* HSW SRVR */ 854 {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */ 855 /* BSW */ 856 {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */ 857 {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */ 858 {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */ 859 {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */ 860 {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */ 861 {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */ 862 {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */ 863 {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */ 864 {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */ 865 {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */ 866 {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */ 867 }; 868 869 static void isa_bridge_class_init(ObjectClass *klass, void *data) 870 { 871 DeviceClass *dc = DEVICE_CLASS(klass); 872 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 873 874 dc->desc = "ISA bridge faked to support IGD PT"; 875 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 876 k->vendor_id = PCI_VENDOR_ID_INTEL; 877 k->class_id = PCI_CLASS_BRIDGE_ISA; 878 }; 879 880 static TypeInfo isa_bridge_info = { 881 .name = "igd-passthrough-isa-bridge", 882 .parent = TYPE_PCI_DEVICE, 883 .instance_size = sizeof(PCIDevice), 884 .class_init = isa_bridge_class_init, 885 .interfaces = (InterfaceInfo[]) { 886 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 887 { }, 888 }, 889 }; 890 891 static void pt_graphics_register_types(void) 892 { 893 type_register_static(&isa_bridge_info); 894 } 895 type_init(pt_graphics_register_types) 896 897 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id) 898 { 899 struct PCIDevice *bridge_dev; 900 int i, num; 901 uint16_t pch_dev_id = 0xffff; 902 uint8_t pch_rev_id; 903 904 num = ARRAY_SIZE(igd_combo_id_infos); 905 for (i = 0; i < num; i++) { 906 if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) { 907 pch_dev_id = igd_combo_id_infos[i].pch_device_id; 908 pch_rev_id = igd_combo_id_infos[i].pch_revision_id; 909 } 910 } 911 912 if (pch_dev_id == 0xffff) { 913 return; 914 } 915 916 /* Currently IGD drivers always need to access PCH by 1f.0. */ 917 bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), 918 "igd-passthrough-isa-bridge"); 919 920 /* 921 * Note that vendor id is always PCI_VENDOR_ID_INTEL. 922 */ 923 if (!bridge_dev) { 924 fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n"); 925 return; 926 } 927 pci_config_set_device_id(bridge_dev->config, pch_dev_id); 928 pci_config_set_revision(bridge_dev->config, pch_rev_id); 929 } 930 931 static void isapc_machine_options(MachineClass *m) 932 { 933 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 934 m->desc = "ISA-only PC"; 935 m->max_cpus = 1; 936 m->option_rom_has_mr = true; 937 m->rom_file_has_mr = false; 938 pcmc->pci_enabled = false; 939 pcmc->has_acpi_build = false; 940 pcmc->smbios_defaults = false; 941 pcmc->gigabyte_align = false; 942 pcmc->smbios_legacy_mode = true; 943 pcmc->has_reserved_memory = false; 944 pcmc->default_nic_model = "ne2k_isa"; 945 m->default_cpu_type = X86_CPU_TYPE_NAME("486"); 946 } 947 948 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, 949 isapc_machine_options); 950 951 952 #ifdef CONFIG_XEN 953 static void xenfv_4_2_machine_options(MachineClass *m) 954 { 955 pc_i440fx_4_2_machine_options(m); 956 m->desc = "Xen Fully-virtualized PC"; 957 m->max_cpus = HVM_MAX_VCPUS; 958 m->default_machine_opts = "accel=xen"; 959 } 960 961 DEFINE_PC_MACHINE(xenfv_4_2, "xenfv-4.2", pc_xen_hvm_init, 962 xenfv_4_2_machine_options); 963 964 static void xenfv_3_1_machine_options(MachineClass *m) 965 { 966 pc_i440fx_3_1_machine_options(m); 967 m->desc = "Xen Fully-virtualized PC"; 968 m->alias = "xenfv"; 969 m->max_cpus = HVM_MAX_VCPUS; 970 m->default_machine_opts = "accel=xen"; 971 } 972 973 DEFINE_PC_MACHINE(xenfv, "xenfv-3.1", pc_xen_hvm_init, 974 xenfv_3_1_machine_options); 975 #endif 976