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 #include "sysemu/xen.h" 57 #ifdef CONFIG_XEN 58 #include <xen/hvm/hvm_info_table.h> 59 #include "hw/xen/xen_pt.h" 60 #endif 61 #include "migration/global_state.h" 62 #include "migration/misc.h" 63 #include "sysemu/numa.h" 64 #include "hw/hyperv/vmbus-bridge.h" 65 #include "hw/mem/nvdimm.h" 66 #include "hw/i386/acpi-build.h" 67 68 #define MAX_IDE_BUS 2 69 70 #ifdef CONFIG_IDE_ISA 71 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; 72 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; 73 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; 74 #endif 75 76 /* PC hardware initialisation */ 77 static void pc_init1(MachineState *machine, 78 const char *host_type, const char *pci_type) 79 { 80 PCMachineState *pcms = PC_MACHINE(machine); 81 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 82 X86MachineState *x86ms = X86_MACHINE(machine); 83 MemoryRegion *system_memory = get_system_memory(); 84 MemoryRegion *system_io = get_system_io(); 85 PCIBus *pci_bus; 86 ISABus *isa_bus; 87 PCII440FXState *i440fx_state; 88 int piix3_devfn = -1; 89 qemu_irq smi_irq; 90 GSIState *gsi_state; 91 BusState *idebus[MAX_IDE_BUS]; 92 ISADevice *rtc_state; 93 MemoryRegion *ram_memory; 94 MemoryRegion *pci_memory; 95 MemoryRegion *rom_memory; 96 ram_addr_t lowmem; 97 98 /* 99 * Calculate ram split, for memory below and above 4G. It's a bit 100 * complicated for backward compatibility reasons ... 101 * 102 * - Traditional split is 3.5G (lowmem = 0xe0000000). This is the 103 * default value for max_ram_below_4g now. 104 * 105 * - Then, to gigabyte align the memory, we move the split to 3G 106 * (lowmem = 0xc0000000). But only in case we have to split in 107 * the first place, i.e. ram_size is larger than (traditional) 108 * lowmem. And for new machine types (gigabyte_align = true) 109 * only, for live migration compatibility reasons. 110 * 111 * - Next the max-ram-below-4g option was added, which allowed to 112 * reduce lowmem to a smaller value, to allow a larger PCI I/O 113 * window below 4G. qemu doesn't enforce gigabyte alignment here, 114 * but prints a warning. 115 * 116 * - Finally max-ram-below-4g got updated to also allow raising lowmem, 117 * so legacy non-PAE guests can get as much memory as possible in 118 * the 32bit address space below 4G. 119 * 120 * - Note that Xen has its own ram setp code in xen_ram_init(), 121 * called via xen_hvm_init(). 122 * 123 * Examples: 124 * qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high 125 * qemu -M pc -m 4G (new default) -> 3072M low, 1024M high 126 * qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high 127 * qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M) 128 */ 129 if (xen_enabled()) { 130 xen_hvm_init(pcms, &ram_memory); 131 } else { 132 if (!pcms->max_ram_below_4g) { 133 pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */ 134 } 135 lowmem = pcms->max_ram_below_4g; 136 if (machine->ram_size >= pcms->max_ram_below_4g) { 137 if (pcmc->gigabyte_align) { 138 if (lowmem > 0xc0000000) { 139 lowmem = 0xc0000000; 140 } 141 if (lowmem & (1 * GiB - 1)) { 142 warn_report("Large machine and max_ram_below_4g " 143 "(%" PRIu64 ") not a multiple of 1G; " 144 "possible bad performance.", 145 pcms->max_ram_below_4g); 146 } 147 } 148 } 149 150 if (machine->ram_size >= lowmem) { 151 x86ms->above_4g_mem_size = machine->ram_size - lowmem; 152 x86ms->below_4g_mem_size = lowmem; 153 } else { 154 x86ms->above_4g_mem_size = 0; 155 x86ms->below_4g_mem_size = machine->ram_size; 156 } 157 } 158 159 x86_cpus_init(x86ms, pcmc->default_cpu_version); 160 161 if (kvm_enabled() && pcmc->kvmclock_enabled) { 162 kvmclock_create(); 163 } 164 165 if (pcmc->pci_enabled) { 166 pci_memory = g_new(MemoryRegion, 1); 167 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 168 rom_memory = pci_memory; 169 } else { 170 pci_memory = NULL; 171 rom_memory = system_memory; 172 } 173 174 pc_guest_info_init(pcms); 175 176 if (pcmc->smbios_defaults) { 177 MachineClass *mc = MACHINE_GET_CLASS(machine); 178 /* These values are guest ABI, do not change */ 179 smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)", 180 mc->name, pcmc->smbios_legacy_mode, 181 pcmc->smbios_uuid_encoded, 182 SMBIOS_ENTRY_POINT_21); 183 } 184 185 /* allocate ram and load rom/bios */ 186 if (!xen_enabled()) { 187 pc_memory_init(pcms, system_memory, 188 rom_memory, &ram_memory); 189 } else if (machine->kernel_filename != NULL) { 190 /* For xen HVM direct kernel boot, load linux here */ 191 xen_load_linux(pcms); 192 } 193 194 gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled); 195 196 if (pcmc->pci_enabled) { 197 PIIX3State *piix3; 198 199 pci_bus = i440fx_init(host_type, 200 pci_type, 201 &i440fx_state, 202 system_memory, system_io, machine->ram_size, 203 x86ms->below_4g_mem_size, 204 x86ms->above_4g_mem_size, 205 pci_memory, ram_memory); 206 pcms->bus = pci_bus; 207 208 piix3 = piix3_create(pci_bus, &isa_bus); 209 piix3->pic = x86ms->gsi; 210 piix3_devfn = piix3->dev.devfn; 211 } else { 212 pci_bus = NULL; 213 i440fx_state = NULL; 214 isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, 215 &error_abort); 216 no_hpet = 1; 217 } 218 isa_bus_irqs(isa_bus, x86ms->gsi); 219 220 pc_i8259_create(isa_bus, gsi_state->i8259_irq); 221 222 if (pcmc->pci_enabled) { 223 ioapic_init_gsi(gsi_state, "i440fx"); 224 } 225 226 if (tcg_enabled()) { 227 x86_register_ferr_irq(x86ms->gsi[13]); 228 } 229 230 pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL); 231 232 assert(pcms->vmport != ON_OFF_AUTO__MAX); 233 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 234 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 235 } 236 237 /* init basic PC hardware */ 238 pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state, true, 239 0x4); 240 241 pc_nic_init(pcmc, isa_bus, pci_bus); 242 243 if (pcmc->pci_enabled) { 244 PCIDevice *dev; 245 246 dev = pci_create_simple(pci_bus, piix3_devfn + 1, 247 xen_enabled() ? "piix3-ide-xen" : "piix3-ide"); 248 pci_ide_create_devs(dev); 249 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); 250 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); 251 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 252 } 253 #ifdef CONFIG_IDE_ISA 254 else { 255 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 256 int i; 257 258 ide_drive_get(hd, ARRAY_SIZE(hd)); 259 for (i = 0; i < MAX_IDE_BUS; i++) { 260 ISADevice *dev; 261 char busname[] = "ide.0"; 262 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], 263 ide_irq[i], 264 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); 265 /* 266 * The ide bus name is ide.0 for the first bus and ide.1 for the 267 * second one. 268 */ 269 busname[4] = '0' + i; 270 idebus[i] = qdev_get_child_bus(DEVICE(dev), busname); 271 } 272 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 273 } 274 #endif 275 276 if (pcmc->pci_enabled && machine_usb(machine)) { 277 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci"); 278 } 279 280 if (pcmc->pci_enabled && x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) { 281 DeviceState *piix4_pm; 282 283 smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0); 284 /* TODO: Populate SPD eeprom data. */ 285 pcms->smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, 286 x86ms->gsi[9], smi_irq, 287 x86_machine_is_smm_enabled(x86ms), 288 &piix4_pm); 289 smbus_eeprom_init(pcms->smbus, 8, NULL, 0); 290 291 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 292 TYPE_HOTPLUG_HANDLER, 293 (Object **)&pcms->acpi_dev, 294 object_property_allow_set_link, 295 OBJ_PROP_LINK_STRONG); 296 object_property_set_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 297 OBJECT(piix4_pm), &error_abort); 298 } 299 300 if (machine->nvdimms_state->is_enabled) { 301 nvdimm_init_acpi_state(machine->nvdimms_state, system_io, 302 x86_nvdimm_acpi_dsmio, 303 x86ms->fw_cfg, OBJECT(pcms)); 304 } 305 } 306 307 /* Looking for a pc_compat_2_4() function? It doesn't exist. 308 * pc_compat_*() functions that run on machine-init time and 309 * change global QEMU state are deprecated. Please don't create 310 * one, and implement any pc-*-2.4 (and newer) compat code in 311 * hw_compat_*, pc_compat_*, or * pc_*_machine_options(). 312 */ 313 314 static void pc_compat_2_3_fn(MachineState *machine) 315 { 316 X86MachineState *x86ms = X86_MACHINE(machine); 317 if (kvm_enabled()) { 318 x86ms->smm = ON_OFF_AUTO_OFF; 319 } 320 } 321 322 static void pc_compat_2_2_fn(MachineState *machine) 323 { 324 pc_compat_2_3_fn(machine); 325 } 326 327 static void pc_compat_2_1_fn(MachineState *machine) 328 { 329 pc_compat_2_2_fn(machine); 330 x86_cpu_change_kvm_default("svm", NULL); 331 } 332 333 static void pc_compat_2_0_fn(MachineState *machine) 334 { 335 pc_compat_2_1_fn(machine); 336 } 337 338 static void pc_compat_1_7_fn(MachineState *machine) 339 { 340 pc_compat_2_0_fn(machine); 341 x86_cpu_change_kvm_default("x2apic", NULL); 342 } 343 344 static void pc_compat_1_6_fn(MachineState *machine) 345 { 346 pc_compat_1_7_fn(machine); 347 } 348 349 static void pc_compat_1_5_fn(MachineState *machine) 350 { 351 pc_compat_1_6_fn(machine); 352 } 353 354 static void pc_compat_1_4_fn(MachineState *machine) 355 { 356 pc_compat_1_5_fn(machine); 357 } 358 359 static void pc_compat_1_3(MachineState *machine) 360 { 361 pc_compat_1_4_fn(machine); 362 } 363 364 /* PC compat function for pc-1.0 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 static void pc_init_isa(MachineState *machine) 372 { 373 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); 374 } 375 376 #ifdef CONFIG_XEN 377 static void pc_xen_hvm_init_pci(MachineState *machine) 378 { 379 const char *pci_type = xen_igd_gfx_pt_enabled() ? 380 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE; 381 382 pc_init1(machine, 383 TYPE_I440FX_PCI_HOST_BRIDGE, 384 pci_type); 385 } 386 387 static void pc_xen_hvm_init(MachineState *machine) 388 { 389 PCMachineState *pcms = PC_MACHINE(machine); 390 391 if (!xen_enabled()) { 392 error_report("xenfv machine requires the xen accelerator"); 393 exit(1); 394 } 395 396 pc_xen_hvm_init_pci(machine); 397 pci_create_simple(pcms->bus, -1, "xen-platform"); 398 } 399 #endif 400 401 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \ 402 static void pc_init_##suffix(MachineState *machine) \ 403 { \ 404 void (*compat)(MachineState *m) = (compatfn); \ 405 if (compat) { \ 406 compat(machine); \ 407 } \ 408 pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \ 409 TYPE_I440FX_PCI_DEVICE); \ 410 } \ 411 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 412 413 static void pc_i440fx_machine_options(MachineClass *m) 414 { 415 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 416 pcmc->default_nic_model = "e1000"; 417 418 m->family = "pc_piix"; 419 m->desc = "Standard PC (i440FX + PIIX, 1996)"; 420 m->default_machine_opts = "firmware=bios-256k.bin"; 421 m->default_display = "std"; 422 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); 423 machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE); 424 } 425 426 static void pc_i440fx_5_1_machine_options(MachineClass *m) 427 { 428 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 429 pc_i440fx_machine_options(m); 430 m->alias = "pc"; 431 m->is_default = true; 432 pcmc->default_cpu_version = 1; 433 } 434 435 DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1", NULL, 436 pc_i440fx_5_1_machine_options); 437 438 static void pc_i440fx_5_0_machine_options(MachineClass *m) 439 { 440 pc_i440fx_5_1_machine_options(m); 441 m->alias = NULL; 442 m->is_default = false; 443 m->numa_mem_supported = true; 444 compat_props_add(m->compat_props, hw_compat_5_0, hw_compat_5_0_len); 445 compat_props_add(m->compat_props, pc_compat_5_0, pc_compat_5_0_len); 446 m->auto_enable_numa_with_memdev = false; 447 } 448 449 DEFINE_I440FX_MACHINE(v5_0, "pc-i440fx-5.0", NULL, 450 pc_i440fx_5_0_machine_options); 451 452 static void pc_i440fx_4_2_machine_options(MachineClass *m) 453 { 454 pc_i440fx_5_0_machine_options(m); 455 m->alias = NULL; 456 m->is_default = false; 457 compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len); 458 compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len); 459 } 460 461 DEFINE_I440FX_MACHINE(v4_2, "pc-i440fx-4.2", NULL, 462 pc_i440fx_4_2_machine_options); 463 464 static void pc_i440fx_4_1_machine_options(MachineClass *m) 465 { 466 pc_i440fx_4_2_machine_options(m); 467 m->alias = NULL; 468 m->is_default = false; 469 compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len); 470 compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len); 471 } 472 473 DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL, 474 pc_i440fx_4_1_machine_options); 475 476 static void pc_i440fx_4_0_machine_options(MachineClass *m) 477 { 478 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 479 pc_i440fx_4_1_machine_options(m); 480 m->alias = NULL; 481 m->is_default = false; 482 pcmc->default_cpu_version = CPU_VERSION_LEGACY; 483 compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len); 484 compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len); 485 } 486 487 DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL, 488 pc_i440fx_4_0_machine_options); 489 490 static void pc_i440fx_3_1_machine_options(MachineClass *m) 491 { 492 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 493 494 pc_i440fx_4_0_machine_options(m); 495 m->is_default = false; 496 pcmc->do_not_add_smb_acpi = true; 497 m->smbus_no_migration_support = true; 498 m->alias = NULL; 499 pcmc->pvh_enabled = false; 500 compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len); 501 compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len); 502 } 503 504 DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL, 505 pc_i440fx_3_1_machine_options); 506 507 static void pc_i440fx_3_0_machine_options(MachineClass *m) 508 { 509 pc_i440fx_3_1_machine_options(m); 510 compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len); 511 compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len); 512 } 513 514 DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL, 515 pc_i440fx_3_0_machine_options); 516 517 static void pc_i440fx_2_12_machine_options(MachineClass *m) 518 { 519 pc_i440fx_3_0_machine_options(m); 520 compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len); 521 compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len); 522 } 523 524 DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL, 525 pc_i440fx_2_12_machine_options); 526 527 static void pc_i440fx_2_11_machine_options(MachineClass *m) 528 { 529 pc_i440fx_2_12_machine_options(m); 530 compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len); 531 compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len); 532 } 533 534 DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL, 535 pc_i440fx_2_11_machine_options); 536 537 static void pc_i440fx_2_10_machine_options(MachineClass *m) 538 { 539 pc_i440fx_2_11_machine_options(m); 540 compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len); 541 compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len); 542 m->auto_enable_numa_with_memhp = false; 543 } 544 545 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL, 546 pc_i440fx_2_10_machine_options); 547 548 static void pc_i440fx_2_9_machine_options(MachineClass *m) 549 { 550 pc_i440fx_2_10_machine_options(m); 551 compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len); 552 compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len); 553 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 554 } 555 556 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL, 557 pc_i440fx_2_9_machine_options); 558 559 static void pc_i440fx_2_8_machine_options(MachineClass *m) 560 { 561 pc_i440fx_2_9_machine_options(m); 562 compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len); 563 compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len); 564 } 565 566 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL, 567 pc_i440fx_2_8_machine_options); 568 569 static void pc_i440fx_2_7_machine_options(MachineClass *m) 570 { 571 pc_i440fx_2_8_machine_options(m); 572 compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len); 573 compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len); 574 } 575 576 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL, 577 pc_i440fx_2_7_machine_options); 578 579 static void pc_i440fx_2_6_machine_options(MachineClass *m) 580 { 581 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 582 583 pc_i440fx_2_7_machine_options(m); 584 pcmc->legacy_cpu_hotplug = true; 585 pcmc->linuxboot_dma_enabled = false; 586 compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len); 587 compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len); 588 } 589 590 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL, 591 pc_i440fx_2_6_machine_options); 592 593 static void pc_i440fx_2_5_machine_options(MachineClass *m) 594 { 595 X86MachineClass *x86mc = X86_MACHINE_CLASS(m); 596 597 pc_i440fx_2_6_machine_options(m); 598 x86mc->save_tsc_khz = false; 599 m->legacy_fw_cfg_order = 1; 600 compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len); 601 compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len); 602 } 603 604 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL, 605 pc_i440fx_2_5_machine_options); 606 607 static void pc_i440fx_2_4_machine_options(MachineClass *m) 608 { 609 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 610 611 pc_i440fx_2_5_machine_options(m); 612 m->hw_version = "2.4.0"; 613 pcmc->broken_reserved_end = true; 614 compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len); 615 compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len); 616 } 617 618 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL, 619 pc_i440fx_2_4_machine_options) 620 621 static void pc_i440fx_2_3_machine_options(MachineClass *m) 622 { 623 pc_i440fx_2_4_machine_options(m); 624 m->hw_version = "2.3.0"; 625 compat_props_add(m->compat_props, hw_compat_2_3, hw_compat_2_3_len); 626 compat_props_add(m->compat_props, pc_compat_2_3, pc_compat_2_3_len); 627 } 628 629 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3_fn, 630 pc_i440fx_2_3_machine_options); 631 632 static void pc_i440fx_2_2_machine_options(MachineClass *m) 633 { 634 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 635 636 pc_i440fx_2_3_machine_options(m); 637 m->hw_version = "2.2.0"; 638 m->default_machine_opts = "firmware=bios-256k.bin,suppress-vmdesc=on"; 639 compat_props_add(m->compat_props, hw_compat_2_2, hw_compat_2_2_len); 640 compat_props_add(m->compat_props, pc_compat_2_2, pc_compat_2_2_len); 641 pcmc->rsdp_in_ram = false; 642 } 643 644 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2_fn, 645 pc_i440fx_2_2_machine_options); 646 647 static void pc_i440fx_2_1_machine_options(MachineClass *m) 648 { 649 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 650 651 pc_i440fx_2_2_machine_options(m); 652 m->hw_version = "2.1.0"; 653 m->default_display = NULL; 654 compat_props_add(m->compat_props, hw_compat_2_1, hw_compat_2_1_len); 655 compat_props_add(m->compat_props, pc_compat_2_1, pc_compat_2_1_len); 656 pcmc->smbios_uuid_encoded = false; 657 pcmc->enforce_aligned_dimm = false; 658 } 659 660 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1_fn, 661 pc_i440fx_2_1_machine_options); 662 663 static void pc_i440fx_2_0_machine_options(MachineClass *m) 664 { 665 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 666 667 pc_i440fx_2_1_machine_options(m); 668 m->hw_version = "2.0.0"; 669 compat_props_add(m->compat_props, pc_compat_2_0, pc_compat_2_0_len); 670 pcmc->smbios_legacy_mode = true; 671 pcmc->has_reserved_memory = false; 672 /* This value depends on the actual DSDT and SSDT compiled into 673 * the source QEMU; unfortunately it depends on the binary and 674 * not on the machine type, so we cannot make pc-i440fx-1.7 work on 675 * both QEMU 1.7 and QEMU 2.0. 676 * 677 * Large variations cause migration to fail for more than one 678 * consecutive value of the "-smp" maxcpus option. 679 * 680 * For small variations of the kind caused by different iasl versions, 681 * the 4k rounding usually leaves slack. However, there could be still 682 * one or two values that break. For QEMU 1.7 and QEMU 2.0 the 683 * slack is only ~10 bytes before one "-smp maxcpus" value breaks! 684 * 685 * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on 686 * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. 687 */ 688 pcmc->legacy_acpi_table_size = 6652; 689 pcmc->acpi_data_size = 0x10000; 690 } 691 692 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0_fn, 693 pc_i440fx_2_0_machine_options); 694 695 static void pc_i440fx_1_7_machine_options(MachineClass *m) 696 { 697 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 698 699 pc_i440fx_2_0_machine_options(m); 700 m->hw_version = "1.7.0"; 701 m->default_machine_opts = NULL; 702 m->option_rom_has_mr = true; 703 compat_props_add(m->compat_props, pc_compat_1_7, pc_compat_1_7_len); 704 pcmc->smbios_defaults = false; 705 pcmc->gigabyte_align = false; 706 pcmc->legacy_acpi_table_size = 6414; 707 } 708 709 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7_fn, 710 pc_i440fx_1_7_machine_options); 711 712 static void pc_i440fx_1_6_machine_options(MachineClass *m) 713 { 714 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 715 716 pc_i440fx_1_7_machine_options(m); 717 m->hw_version = "1.6.0"; 718 m->rom_file_has_mr = false; 719 compat_props_add(m->compat_props, pc_compat_1_6, pc_compat_1_6_len); 720 pcmc->has_acpi_build = false; 721 } 722 723 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6_fn, 724 pc_i440fx_1_6_machine_options); 725 726 static void pc_i440fx_1_5_machine_options(MachineClass *m) 727 { 728 pc_i440fx_1_6_machine_options(m); 729 m->hw_version = "1.5.0"; 730 compat_props_add(m->compat_props, pc_compat_1_5, pc_compat_1_5_len); 731 } 732 733 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5_fn, 734 pc_i440fx_1_5_machine_options); 735 736 static void pc_i440fx_1_4_machine_options(MachineClass *m) 737 { 738 pc_i440fx_1_5_machine_options(m); 739 m->hw_version = "1.4.0"; 740 m->hot_add_cpu = NULL; 741 compat_props_add(m->compat_props, pc_compat_1_4, pc_compat_1_4_len); 742 } 743 744 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4_fn, 745 pc_i440fx_1_4_machine_options); 746 747 static void pc_i440fx_1_3_machine_options(MachineClass *m) 748 { 749 X86MachineClass *x86mc = X86_MACHINE_CLASS(m); 750 static GlobalProperty compat[] = { 751 PC_CPU_MODEL_IDS("1.3.0") 752 { "usb-tablet", "usb_version", "1" }, 753 { "virtio-net-pci", "ctrl_mac_addr", "off" }, 754 { "virtio-net-pci", "mq", "off" }, 755 { "e1000", "autonegotiation", "off" }, 756 }; 757 758 pc_i440fx_1_4_machine_options(m); 759 m->hw_version = "1.3.0"; 760 m->deprecation_reason = "use a newer machine type instead"; 761 x86mc->compat_apic_id_mode = true; 762 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 763 } 764 765 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3, 766 pc_i440fx_1_3_machine_options); 767 768 769 static void pc_i440fx_1_2_machine_options(MachineClass *m) 770 { 771 static GlobalProperty compat[] = { 772 PC_CPU_MODEL_IDS("1.2.0") 773 { "nec-usb-xhci", "msi", "off" }, 774 { "nec-usb-xhci", "msix", "off" }, 775 { "qxl", "revision", "3" }, 776 { "qxl-vga", "revision", "3" }, 777 { "VGA", "mmio", "off" }, 778 }; 779 780 pc_i440fx_1_3_machine_options(m); 781 m->hw_version = "1.2.0"; 782 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 783 } 784 785 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2, 786 pc_i440fx_1_2_machine_options); 787 788 789 static void pc_i440fx_1_1_machine_options(MachineClass *m) 790 { 791 static GlobalProperty compat[] = { 792 PC_CPU_MODEL_IDS("1.1.0") 793 { "virtio-scsi-pci", "hotplug", "off" }, 794 { "virtio-scsi-pci", "param_change", "off" }, 795 { "VGA", "vgamem_mb", "8" }, 796 { "vmware-svga", "vgamem_mb", "8" }, 797 { "qxl-vga", "vgamem_mb", "8" }, 798 { "qxl", "vgamem_mb", "8" }, 799 { "virtio-blk-pci", "config-wce", "off" }, 800 }; 801 802 pc_i440fx_1_2_machine_options(m); 803 m->hw_version = "1.1.0"; 804 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 805 } 806 807 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2, 808 pc_i440fx_1_1_machine_options); 809 810 static void pc_i440fx_1_0_machine_options(MachineClass *m) 811 { 812 static GlobalProperty compat[] = { 813 PC_CPU_MODEL_IDS("1.0") 814 { TYPE_ISA_FDC, "check_media_rate", "off" }, 815 { "virtio-balloon-pci", "class", stringify(PCI_CLASS_MEMORY_RAM) }, 816 { "apic-common", "vapic", "off" }, 817 { TYPE_USB_DEVICE, "full-path", "no" }, 818 }; 819 820 pc_i440fx_1_1_machine_options(m); 821 m->hw_version = "1.0"; 822 compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat)); 823 } 824 825 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2, 826 pc_i440fx_1_0_machine_options); 827 828 829 typedef struct { 830 uint16_t gpu_device_id; 831 uint16_t pch_device_id; 832 uint8_t pch_revision_id; 833 } IGDDeviceIDInfo; 834 835 /* In real world different GPU should have different PCH. But actually 836 * the different PCH DIDs likely map to different PCH SKUs. We do the 837 * same thing for the GPU. For PCH, the different SKUs are going to be 838 * all the same silicon design and implementation, just different 839 * features turn on and off with fuses. The SW interfaces should be 840 * consistent across all SKUs in a given family (eg LPT). But just same 841 * features may not be supported. 842 * 843 * Most of these different PCH features probably don't matter to the 844 * Gfx driver, but obviously any difference in display port connections 845 * will so it should be fine with any PCH in case of passthrough. 846 * 847 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell) 848 * scenarios, 0x9cc3 for BDW(Broadwell). 849 */ 850 static const IGDDeviceIDInfo igd_combo_id_infos[] = { 851 /* HSW Classic */ 852 {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */ 853 {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */ 854 {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */ 855 {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */ 856 {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */ 857 /* HSW ULT */ 858 {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */ 859 {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */ 860 {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */ 861 {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */ 862 {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */ 863 {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */ 864 /* HSW CRW */ 865 {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */ 866 {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */ 867 /* HSW Server */ 868 {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */ 869 /* HSW SRVR */ 870 {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */ 871 /* BSW */ 872 {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */ 873 {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */ 874 {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */ 875 {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */ 876 {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */ 877 {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */ 878 {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */ 879 {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */ 880 {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */ 881 {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */ 882 {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */ 883 }; 884 885 static void isa_bridge_class_init(ObjectClass *klass, void *data) 886 { 887 DeviceClass *dc = DEVICE_CLASS(klass); 888 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 889 890 dc->desc = "ISA bridge faked to support IGD PT"; 891 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 892 k->vendor_id = PCI_VENDOR_ID_INTEL; 893 k->class_id = PCI_CLASS_BRIDGE_ISA; 894 }; 895 896 static TypeInfo isa_bridge_info = { 897 .name = "igd-passthrough-isa-bridge", 898 .parent = TYPE_PCI_DEVICE, 899 .instance_size = sizeof(PCIDevice), 900 .class_init = isa_bridge_class_init, 901 .interfaces = (InterfaceInfo[]) { 902 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 903 { }, 904 }, 905 }; 906 907 static void pt_graphics_register_types(void) 908 { 909 type_register_static(&isa_bridge_info); 910 } 911 type_init(pt_graphics_register_types) 912 913 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id) 914 { 915 struct PCIDevice *bridge_dev; 916 int i, num; 917 uint16_t pch_dev_id = 0xffff; 918 uint8_t pch_rev_id; 919 920 num = ARRAY_SIZE(igd_combo_id_infos); 921 for (i = 0; i < num; i++) { 922 if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) { 923 pch_dev_id = igd_combo_id_infos[i].pch_device_id; 924 pch_rev_id = igd_combo_id_infos[i].pch_revision_id; 925 } 926 } 927 928 if (pch_dev_id == 0xffff) { 929 return; 930 } 931 932 /* Currently IGD drivers always need to access PCH by 1f.0. */ 933 bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), 934 "igd-passthrough-isa-bridge"); 935 936 /* 937 * Note that vendor id is always PCI_VENDOR_ID_INTEL. 938 */ 939 if (!bridge_dev) { 940 fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n"); 941 return; 942 } 943 pci_config_set_device_id(bridge_dev->config, pch_dev_id); 944 pci_config_set_revision(bridge_dev->config, pch_rev_id); 945 } 946 947 static void isapc_machine_options(MachineClass *m) 948 { 949 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 950 m->desc = "ISA-only PC"; 951 m->max_cpus = 1; 952 m->option_rom_has_mr = true; 953 m->rom_file_has_mr = false; 954 pcmc->pci_enabled = false; 955 pcmc->has_acpi_build = false; 956 pcmc->smbios_defaults = false; 957 pcmc->gigabyte_align = false; 958 pcmc->smbios_legacy_mode = true; 959 pcmc->has_reserved_memory = false; 960 pcmc->default_nic_model = "ne2k_isa"; 961 m->default_cpu_type = X86_CPU_TYPE_NAME("486"); 962 } 963 964 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, 965 isapc_machine_options); 966 967 968 #ifdef CONFIG_XEN 969 static void xenfv_4_2_machine_options(MachineClass *m) 970 { 971 pc_i440fx_4_2_machine_options(m); 972 m->desc = "Xen Fully-virtualized PC"; 973 m->max_cpus = HVM_MAX_VCPUS; 974 m->default_machine_opts = "accel=xen"; 975 } 976 977 DEFINE_PC_MACHINE(xenfv_4_2, "xenfv-4.2", pc_xen_hvm_init, 978 xenfv_4_2_machine_options); 979 980 static void xenfv_3_1_machine_options(MachineClass *m) 981 { 982 pc_i440fx_3_1_machine_options(m); 983 m->desc = "Xen Fully-virtualized PC"; 984 m->alias = "xenfv"; 985 m->max_cpus = HVM_MAX_VCPUS; 986 m->default_machine_opts = "accel=xen"; 987 } 988 989 DEFINE_PC_MACHINE(xenfv, "xenfv-3.1", pc_xen_hvm_init, 990 xenfv_3_1_machine_options); 991 #endif 992