qemu/hw/i386/pc_piix.c
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   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
  71static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  72static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  73static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  74#endif
  75
  76/* PC hardware initialisation */
  77static 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 {
 190        pc_system_flash_cleanup_unused(pcms);
 191        if (machine->kernel_filename != NULL) {
 192            /* For xen HVM direct kernel boot, load linux here */
 193            xen_load_linux(pcms);
 194        }
 195    }
 196
 197    gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled);
 198
 199    if (pcmc->pci_enabled) {
 200        PIIX3State *piix3;
 201
 202        pci_bus = i440fx_init(host_type,
 203                              pci_type,
 204                              &i440fx_state,
 205                              system_memory, system_io, machine->ram_size,
 206                              x86ms->below_4g_mem_size,
 207                              x86ms->above_4g_mem_size,
 208                              pci_memory, ram_memory);
 209        pcms->bus = pci_bus;
 210
 211        piix3 = piix3_create(pci_bus, &isa_bus);
 212        piix3->pic = x86ms->gsi;
 213        piix3_devfn = piix3->dev.devfn;
 214    } else {
 215        pci_bus = NULL;
 216        i440fx_state = NULL;
 217        isa_bus = isa_bus_new(NULL, get_system_memory(), system_io,
 218                              &error_abort);
 219        no_hpet = 1;
 220    }
 221    isa_bus_irqs(isa_bus, x86ms->gsi);
 222
 223    pc_i8259_create(isa_bus, gsi_state->i8259_irq);
 224
 225    if (pcmc->pci_enabled) {
 226        ioapic_init_gsi(gsi_state, "i440fx");
 227    }
 228
 229    if (tcg_enabled()) {
 230        x86_register_ferr_irq(x86ms->gsi[13]);
 231    }
 232
 233    pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL);
 234
 235    assert(pcms->vmport != ON_OFF_AUTO__MAX);
 236    if (pcms->vmport == ON_OFF_AUTO_AUTO) {
 237        pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
 238    }
 239
 240    /* init basic PC hardware */
 241    pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state, true,
 242                         0x4);
 243
 244    pc_nic_init(pcmc, isa_bus, pci_bus);
 245
 246    if (pcmc->pci_enabled) {
 247        PCIDevice *dev;
 248
 249        dev = pci_create_simple(pci_bus, piix3_devfn + 1,
 250                                xen_enabled() ? "piix3-ide-xen" : "piix3-ide");
 251        pci_ide_create_devs(dev);
 252        idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 253        idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 254        pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
 255    }
 256#ifdef CONFIG_IDE_ISA
 257    else {
 258        DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 259        int i;
 260
 261        ide_drive_get(hd, ARRAY_SIZE(hd));
 262        for (i = 0; i < MAX_IDE_BUS; i++) {
 263            ISADevice *dev;
 264            char busname[] = "ide.0";
 265            dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
 266                               ide_irq[i],
 267                               hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 268            /*
 269             * The ide bus name is ide.0 for the first bus and ide.1 for the
 270             * second one.
 271             */
 272            busname[4] = '0' + i;
 273            idebus[i] = qdev_get_child_bus(DEVICE(dev), busname);
 274        }
 275        pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
 276    }
 277#endif
 278
 279    if (pcmc->pci_enabled && machine_usb(machine)) {
 280        pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
 281    }
 282
 283    if (pcmc->pci_enabled && x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) {
 284        DeviceState *piix4_pm;
 285
 286        smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0);
 287        /* TODO: Populate SPD eeprom data.  */
 288        pcms->smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 289                                    x86ms->gsi[9], smi_irq,
 290                                    x86_machine_is_smm_enabled(x86ms),
 291                                    &piix4_pm);
 292        smbus_eeprom_init(pcms->smbus, 8, NULL, 0);
 293
 294        object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
 295                                 TYPE_HOTPLUG_HANDLER,
 296                                 (Object **)&pcms->acpi_dev,
 297                                 object_property_allow_set_link,
 298                                 OBJ_PROP_LINK_STRONG);
 299        object_property_set_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
 300                                 OBJECT(piix4_pm), &error_abort);
 301    }
 302
 303    if (machine->nvdimms_state->is_enabled) {
 304        nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
 305                               x86_nvdimm_acpi_dsmio,
 306                               x86ms->fw_cfg, OBJECT(pcms));
 307    }
 308}
 309
 310/* Looking for a pc_compat_2_4() function? It doesn't exist.
 311 * pc_compat_*() functions that run on machine-init time and
 312 * change global QEMU state are deprecated. Please don't create
 313 * one, and implement any pc-*-2.4 (and newer) compat code in
 314 * hw_compat_*, pc_compat_*, or * pc_*_machine_options().
 315 */
 316
 317static void pc_compat_2_3_fn(MachineState *machine)
 318{
 319    X86MachineState *x86ms = X86_MACHINE(machine);
 320    if (kvm_enabled()) {
 321        x86ms->smm = ON_OFF_AUTO_OFF;
 322    }
 323}
 324
 325static void pc_compat_2_2_fn(MachineState *machine)
 326{
 327    pc_compat_2_3_fn(machine);
 328}
 329
 330static void pc_compat_2_1_fn(MachineState *machine)
 331{
 332    pc_compat_2_2_fn(machine);
 333    x86_cpu_change_kvm_default("svm", NULL);
 334}
 335
 336static void pc_compat_2_0_fn(MachineState *machine)
 337{
 338    pc_compat_2_1_fn(machine);
 339}
 340
 341static void pc_compat_1_7_fn(MachineState *machine)
 342{
 343    pc_compat_2_0_fn(machine);
 344    x86_cpu_change_kvm_default("x2apic", NULL);
 345}
 346
 347static void pc_compat_1_6_fn(MachineState *machine)
 348{
 349    pc_compat_1_7_fn(machine);
 350}
 351
 352static void pc_compat_1_5_fn(MachineState *machine)
 353{
 354    pc_compat_1_6_fn(machine);
 355}
 356
 357static void pc_compat_1_4_fn(MachineState *machine)
 358{
 359    pc_compat_1_5_fn(machine);
 360}
 361
 362static void pc_compat_1_3(MachineState *machine)
 363{
 364    pc_compat_1_4_fn(machine);
 365}
 366
 367/* PC compat function for pc-1.0 to pc-1.2 */
 368static void pc_compat_1_2(MachineState *machine)
 369{
 370    pc_compat_1_3(machine);
 371    x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
 372}
 373
 374static void pc_init_isa(MachineState *machine)
 375{
 376    pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
 377}
 378
 379#ifdef CONFIG_XEN
 380static void pc_xen_hvm_init_pci(MachineState *machine)
 381{
 382    const char *pci_type = xen_igd_gfx_pt_enabled() ?
 383                TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE;
 384
 385    pc_init1(machine,
 386             TYPE_I440FX_PCI_HOST_BRIDGE,
 387             pci_type);
 388}
 389
 390static void pc_xen_hvm_init(MachineState *machine)
 391{
 392    PCMachineState *pcms = PC_MACHINE(machine);
 393
 394    if (!xen_enabled()) {
 395        error_report("xenfv machine requires the xen accelerator");
 396        exit(1);
 397    }
 398
 399    pc_xen_hvm_init_pci(machine);
 400    pci_create_simple(pcms->bus, -1, "xen-platform");
 401}
 402#endif
 403
 404#define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \
 405    static void pc_init_##suffix(MachineState *machine) \
 406    { \
 407        void (*compat)(MachineState *m) = (compatfn); \
 408        if (compat) { \
 409            compat(machine); \
 410        } \
 411        pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
 412                 TYPE_I440FX_PCI_DEVICE); \
 413    } \
 414    DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
 415
 416static void pc_i440fx_machine_options(MachineClass *m)
 417{
 418    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 419    pcmc->default_nic_model = "e1000";
 420
 421    m->family = "pc_piix";
 422    m->desc = "Standard PC (i440FX + PIIX, 1996)";
 423    m->default_machine_opts = "firmware=bios-256k.bin";
 424    m->default_display = "std";
 425    machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
 426    machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE);
 427}
 428
 429static void pc_i440fx_5_1_machine_options(MachineClass *m)
 430{
 431    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 432    pc_i440fx_machine_options(m);
 433    m->alias = "pc";
 434    m->is_default = true;
 435    pcmc->default_cpu_version = 1;
 436}
 437
 438DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1", NULL,
 439                      pc_i440fx_5_1_machine_options);
 440
 441static void pc_i440fx_5_0_machine_options(MachineClass *m)
 442{
 443    pc_i440fx_5_1_machine_options(m);
 444    m->alias = NULL;
 445    m->is_default = false;
 446    m->numa_mem_supported = true;
 447    compat_props_add(m->compat_props, hw_compat_5_0, hw_compat_5_0_len);
 448    compat_props_add(m->compat_props, pc_compat_5_0, pc_compat_5_0_len);
 449    m->auto_enable_numa_with_memdev = false;
 450}
 451
 452DEFINE_I440FX_MACHINE(v5_0, "pc-i440fx-5.0", NULL,
 453                      pc_i440fx_5_0_machine_options);
 454
 455static void pc_i440fx_4_2_machine_options(MachineClass *m)
 456{
 457    pc_i440fx_5_0_machine_options(m);
 458    m->alias = NULL;
 459    m->is_default = false;
 460    compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
 461    compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
 462}
 463
 464DEFINE_I440FX_MACHINE(v4_2, "pc-i440fx-4.2", NULL,
 465                      pc_i440fx_4_2_machine_options);
 466
 467static void pc_i440fx_4_1_machine_options(MachineClass *m)
 468{
 469    pc_i440fx_4_2_machine_options(m);
 470    m->alias = NULL;
 471    m->is_default = false;
 472    compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
 473    compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
 474}
 475
 476DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL,
 477                      pc_i440fx_4_1_machine_options);
 478
 479static void pc_i440fx_4_0_machine_options(MachineClass *m)
 480{
 481    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 482    pc_i440fx_4_1_machine_options(m);
 483    m->alias = NULL;
 484    m->is_default = false;
 485    pcmc->default_cpu_version = CPU_VERSION_LEGACY;
 486    compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
 487    compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
 488}
 489
 490DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL,
 491                      pc_i440fx_4_0_machine_options);
 492
 493static void pc_i440fx_3_1_machine_options(MachineClass *m)
 494{
 495    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 496
 497    pc_i440fx_4_0_machine_options(m);
 498    m->is_default = false;
 499    pcmc->do_not_add_smb_acpi = true;
 500    m->smbus_no_migration_support = true;
 501    m->alias = NULL;
 502    pcmc->pvh_enabled = false;
 503    compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
 504    compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
 505}
 506
 507DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL,
 508                      pc_i440fx_3_1_machine_options);
 509
 510static void pc_i440fx_3_0_machine_options(MachineClass *m)
 511{
 512    pc_i440fx_3_1_machine_options(m);
 513    compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
 514    compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
 515}
 516
 517DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL,
 518                      pc_i440fx_3_0_machine_options);
 519
 520static void pc_i440fx_2_12_machine_options(MachineClass *m)
 521{
 522    pc_i440fx_3_0_machine_options(m);
 523    compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
 524    compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
 525}
 526
 527DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL,
 528                      pc_i440fx_2_12_machine_options);
 529
 530static void pc_i440fx_2_11_machine_options(MachineClass *m)
 531{
 532    pc_i440fx_2_12_machine_options(m);
 533    compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
 534    compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
 535}
 536
 537DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL,
 538                      pc_i440fx_2_11_machine_options);
 539
 540static void pc_i440fx_2_10_machine_options(MachineClass *m)
 541{
 542    pc_i440fx_2_11_machine_options(m);
 543    compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
 544    compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
 545    m->auto_enable_numa_with_memhp = false;
 546}
 547
 548DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL,
 549                      pc_i440fx_2_10_machine_options);
 550
 551static void pc_i440fx_2_9_machine_options(MachineClass *m)
 552{
 553    pc_i440fx_2_10_machine_options(m);
 554    compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
 555    compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
 556    m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
 557}
 558
 559DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL,
 560                      pc_i440fx_2_9_machine_options);
 561
 562static void pc_i440fx_2_8_machine_options(MachineClass *m)
 563{
 564    pc_i440fx_2_9_machine_options(m);
 565    compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
 566    compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
 567}
 568
 569DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL,
 570                      pc_i440fx_2_8_machine_options);
 571
 572static void pc_i440fx_2_7_machine_options(MachineClass *m)
 573{
 574    pc_i440fx_2_8_machine_options(m);
 575    compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
 576    compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
 577}
 578
 579DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL,
 580                      pc_i440fx_2_7_machine_options);
 581
 582static void pc_i440fx_2_6_machine_options(MachineClass *m)
 583{
 584    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 585
 586    pc_i440fx_2_7_machine_options(m);
 587    pcmc->legacy_cpu_hotplug = true;
 588    pcmc->linuxboot_dma_enabled = false;
 589    compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
 590    compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
 591}
 592
 593DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL,
 594                      pc_i440fx_2_6_machine_options);
 595
 596static void pc_i440fx_2_5_machine_options(MachineClass *m)
 597{
 598    X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
 599
 600    pc_i440fx_2_6_machine_options(m);
 601    x86mc->save_tsc_khz = false;
 602    m->legacy_fw_cfg_order = 1;
 603    compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
 604    compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
 605}
 606
 607DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL,
 608                      pc_i440fx_2_5_machine_options);
 609
 610static void pc_i440fx_2_4_machine_options(MachineClass *m)
 611{
 612    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 613
 614    pc_i440fx_2_5_machine_options(m);
 615    m->hw_version = "2.4.0";
 616    pcmc->broken_reserved_end = true;
 617    compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
 618    compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
 619}
 620
 621DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL,
 622                      pc_i440fx_2_4_machine_options)
 623
 624static void pc_i440fx_2_3_machine_options(MachineClass *m)
 625{
 626    pc_i440fx_2_4_machine_options(m);
 627    m->hw_version = "2.3.0";
 628    compat_props_add(m->compat_props, hw_compat_2_3, hw_compat_2_3_len);
 629    compat_props_add(m->compat_props, pc_compat_2_3, pc_compat_2_3_len);
 630}
 631
 632DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3_fn,
 633                      pc_i440fx_2_3_machine_options);
 634
 635static void pc_i440fx_2_2_machine_options(MachineClass *m)
 636{
 637    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 638
 639    pc_i440fx_2_3_machine_options(m);
 640    m->hw_version = "2.2.0";
 641    m->default_machine_opts = "firmware=bios-256k.bin,suppress-vmdesc=on";
 642    compat_props_add(m->compat_props, hw_compat_2_2, hw_compat_2_2_len);
 643    compat_props_add(m->compat_props, pc_compat_2_2, pc_compat_2_2_len);
 644    pcmc->rsdp_in_ram = false;
 645}
 646
 647DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2_fn,
 648                      pc_i440fx_2_2_machine_options);
 649
 650static void pc_i440fx_2_1_machine_options(MachineClass *m)
 651{
 652    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 653
 654    pc_i440fx_2_2_machine_options(m);
 655    m->hw_version = "2.1.0";
 656    m->default_display = NULL;
 657    compat_props_add(m->compat_props, hw_compat_2_1, hw_compat_2_1_len);
 658    compat_props_add(m->compat_props, pc_compat_2_1, pc_compat_2_1_len);
 659    pcmc->smbios_uuid_encoded = false;
 660    pcmc->enforce_aligned_dimm = false;
 661}
 662
 663DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1_fn,
 664                      pc_i440fx_2_1_machine_options);
 665
 666static void pc_i440fx_2_0_machine_options(MachineClass *m)
 667{
 668    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 669
 670    pc_i440fx_2_1_machine_options(m);
 671    m->hw_version = "2.0.0";
 672    compat_props_add(m->compat_props, pc_compat_2_0, pc_compat_2_0_len);
 673    pcmc->smbios_legacy_mode = true;
 674    pcmc->has_reserved_memory = false;
 675    /* This value depends on the actual DSDT and SSDT compiled into
 676     * the source QEMU; unfortunately it depends on the binary and
 677     * not on the machine type, so we cannot make pc-i440fx-1.7 work on
 678     * both QEMU 1.7 and QEMU 2.0.
 679     *
 680     * Large variations cause migration to fail for more than one
 681     * consecutive value of the "-smp" maxcpus option.
 682     *
 683     * For small variations of the kind caused by different iasl versions,
 684     * the 4k rounding usually leaves slack.  However, there could be still
 685     * one or two values that break.  For QEMU 1.7 and QEMU 2.0 the
 686     * slack is only ~10 bytes before one "-smp maxcpus" value breaks!
 687     *
 688     * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on
 689     * QEMU 1.7 it is 6414.  For RHEL/CentOS 7.0 it is 6418.
 690     */
 691    pcmc->legacy_acpi_table_size = 6652;
 692    pcmc->acpi_data_size = 0x10000;
 693}
 694
 695DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0_fn,
 696                      pc_i440fx_2_0_machine_options);
 697
 698static void pc_i440fx_1_7_machine_options(MachineClass *m)
 699{
 700    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 701
 702    pc_i440fx_2_0_machine_options(m);
 703    m->hw_version = "1.7.0";
 704    m->default_machine_opts = NULL;
 705    m->option_rom_has_mr = true;
 706    compat_props_add(m->compat_props, pc_compat_1_7, pc_compat_1_7_len);
 707    pcmc->smbios_defaults = false;
 708    pcmc->gigabyte_align = false;
 709    pcmc->legacy_acpi_table_size = 6414;
 710}
 711
 712DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7_fn,
 713                      pc_i440fx_1_7_machine_options);
 714
 715static void pc_i440fx_1_6_machine_options(MachineClass *m)
 716{
 717    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 718
 719    pc_i440fx_1_7_machine_options(m);
 720    m->hw_version = "1.6.0";
 721    m->rom_file_has_mr = false;
 722    compat_props_add(m->compat_props, pc_compat_1_6, pc_compat_1_6_len);
 723    pcmc->has_acpi_build = false;
 724}
 725
 726DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6_fn,
 727                      pc_i440fx_1_6_machine_options);
 728
 729static void pc_i440fx_1_5_machine_options(MachineClass *m)
 730{
 731    pc_i440fx_1_6_machine_options(m);
 732    m->hw_version = "1.5.0";
 733    compat_props_add(m->compat_props, pc_compat_1_5, pc_compat_1_5_len);
 734}
 735
 736DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5_fn,
 737                      pc_i440fx_1_5_machine_options);
 738
 739static void pc_i440fx_1_4_machine_options(MachineClass *m)
 740{
 741    pc_i440fx_1_5_machine_options(m);
 742    m->hw_version = "1.4.0";
 743    m->hot_add_cpu = NULL;
 744    compat_props_add(m->compat_props, pc_compat_1_4, pc_compat_1_4_len);
 745}
 746
 747DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4_fn,
 748                      pc_i440fx_1_4_machine_options);
 749
 750static void pc_i440fx_1_3_machine_options(MachineClass *m)
 751{
 752    X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
 753    static GlobalProperty compat[] = {
 754        PC_CPU_MODEL_IDS("1.3.0")
 755        { "usb-tablet", "usb_version", "1" },
 756        { "virtio-net-pci", "ctrl_mac_addr", "off" },
 757        { "virtio-net-pci", "mq", "off" },
 758        { "e1000", "autonegotiation", "off" },
 759    };
 760
 761    pc_i440fx_1_4_machine_options(m);
 762    m->hw_version = "1.3.0";
 763    m->deprecation_reason = "use a newer machine type instead";
 764    x86mc->compat_apic_id_mode = true;
 765    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
 766}
 767
 768DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3,
 769                      pc_i440fx_1_3_machine_options);
 770
 771
 772static void pc_i440fx_1_2_machine_options(MachineClass *m)
 773{
 774    static GlobalProperty compat[] = {
 775        PC_CPU_MODEL_IDS("1.2.0")
 776        { "nec-usb-xhci", "msi", "off" },
 777        { "nec-usb-xhci", "msix", "off" },
 778        { "qxl", "revision", "3" },
 779        { "qxl-vga", "revision", "3" },
 780        { "VGA", "mmio", "off" },
 781    };
 782
 783    pc_i440fx_1_3_machine_options(m);
 784    m->hw_version = "1.2.0";
 785    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
 786}
 787
 788DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2,
 789                      pc_i440fx_1_2_machine_options);
 790
 791
 792static void pc_i440fx_1_1_machine_options(MachineClass *m)
 793{
 794    static GlobalProperty compat[] = {
 795        PC_CPU_MODEL_IDS("1.1.0")
 796        { "virtio-scsi-pci", "hotplug", "off" },
 797        { "virtio-scsi-pci", "param_change", "off" },
 798        { "VGA", "vgamem_mb", "8" },
 799        { "vmware-svga", "vgamem_mb", "8" },
 800        { "qxl-vga", "vgamem_mb", "8" },
 801        { "qxl", "vgamem_mb", "8" },
 802        { "virtio-blk-pci", "config-wce", "off" },
 803    };
 804
 805    pc_i440fx_1_2_machine_options(m);
 806    m->hw_version = "1.1.0";
 807    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
 808}
 809
 810DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2,
 811                      pc_i440fx_1_1_machine_options);
 812
 813static void pc_i440fx_1_0_machine_options(MachineClass *m)
 814{
 815    static GlobalProperty compat[] = {
 816        PC_CPU_MODEL_IDS("1.0")
 817        { TYPE_ISA_FDC, "check_media_rate", "off" },
 818        { "virtio-balloon-pci", "class", stringify(PCI_CLASS_MEMORY_RAM) },
 819        { "apic-common", "vapic", "off" },
 820        { TYPE_USB_DEVICE, "full-path", "no" },
 821    };
 822
 823    pc_i440fx_1_1_machine_options(m);
 824    m->hw_version = "1.0";
 825    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
 826}
 827
 828DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2,
 829                      pc_i440fx_1_0_machine_options);
 830
 831
 832typedef struct {
 833    uint16_t gpu_device_id;
 834    uint16_t pch_device_id;
 835    uint8_t pch_revision_id;
 836} IGDDeviceIDInfo;
 837
 838/* In real world different GPU should have different PCH. But actually
 839 * the different PCH DIDs likely map to different PCH SKUs. We do the
 840 * same thing for the GPU. For PCH, the different SKUs are going to be
 841 * all the same silicon design and implementation, just different
 842 * features turn on and off with fuses. The SW interfaces should be
 843 * consistent across all SKUs in a given family (eg LPT). But just same
 844 * features may not be supported.
 845 *
 846 * Most of these different PCH features probably don't matter to the
 847 * Gfx driver, but obviously any difference in display port connections
 848 * will so it should be fine with any PCH in case of passthrough.
 849 *
 850 * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell)
 851 * scenarios, 0x9cc3 for BDW(Broadwell).
 852 */
 853static const IGDDeviceIDInfo igd_combo_id_infos[] = {
 854    /* HSW Classic */
 855    {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */
 856    {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */
 857    {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */
 858    {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */
 859    {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */
 860    /* HSW ULT */
 861    {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */
 862    {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */
 863    {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */
 864    {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */
 865    {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */
 866    {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */
 867    /* HSW CRW */
 868    {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */
 869    {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */
 870    /* HSW Server */
 871    {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */
 872    /* HSW SRVR */
 873    {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */
 874    /* BSW */
 875    {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */
 876    {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */
 877    {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */
 878    {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */
 879    {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */
 880    {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */
 881    {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */
 882    {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */
 883    {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */
 884    {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */
 885    {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */
 886};
 887
 888static void isa_bridge_class_init(ObjectClass *klass, void *data)
 889{
 890    DeviceClass *dc = DEVICE_CLASS(klass);
 891    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 892
 893    dc->desc        = "ISA bridge faked to support IGD PT";
 894    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 895    k->vendor_id    = PCI_VENDOR_ID_INTEL;
 896    k->class_id     = PCI_CLASS_BRIDGE_ISA;
 897};
 898
 899static TypeInfo isa_bridge_info = {
 900    .name          = "igd-passthrough-isa-bridge",
 901    .parent        = TYPE_PCI_DEVICE,
 902    .instance_size = sizeof(PCIDevice),
 903    .class_init = isa_bridge_class_init,
 904    .interfaces = (InterfaceInfo[]) {
 905        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
 906        { },
 907    },
 908};
 909
 910static void pt_graphics_register_types(void)
 911{
 912    type_register_static(&isa_bridge_info);
 913}
 914type_init(pt_graphics_register_types)
 915
 916void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id)
 917{
 918    struct PCIDevice *bridge_dev;
 919    int i, num;
 920    uint16_t pch_dev_id = 0xffff;
 921    uint8_t pch_rev_id;
 922
 923    num = ARRAY_SIZE(igd_combo_id_infos);
 924    for (i = 0; i < num; i++) {
 925        if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) {
 926            pch_dev_id = igd_combo_id_infos[i].pch_device_id;
 927            pch_rev_id = igd_combo_id_infos[i].pch_revision_id;
 928        }
 929    }
 930
 931    if (pch_dev_id == 0xffff) {
 932        return;
 933    }
 934
 935    /* Currently IGD drivers always need to access PCH by 1f.0. */
 936    bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0),
 937                                   "igd-passthrough-isa-bridge");
 938
 939    /*
 940     * Note that vendor id is always PCI_VENDOR_ID_INTEL.
 941     */
 942    if (!bridge_dev) {
 943        fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n");
 944        return;
 945    }
 946    pci_config_set_device_id(bridge_dev->config, pch_dev_id);
 947    pci_config_set_revision(bridge_dev->config, pch_rev_id);
 948}
 949
 950static void isapc_machine_options(MachineClass *m)
 951{
 952    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 953    m->desc = "ISA-only PC";
 954    m->max_cpus = 1;
 955    m->option_rom_has_mr = true;
 956    m->rom_file_has_mr = false;
 957    pcmc->pci_enabled = false;
 958    pcmc->has_acpi_build = false;
 959    pcmc->smbios_defaults = false;
 960    pcmc->gigabyte_align = false;
 961    pcmc->smbios_legacy_mode = true;
 962    pcmc->has_reserved_memory = false;
 963    pcmc->default_nic_model = "ne2k_isa";
 964    m->default_cpu_type = X86_CPU_TYPE_NAME("486");
 965}
 966
 967DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
 968                  isapc_machine_options);
 969
 970
 971#ifdef CONFIG_XEN
 972static void xenfv_4_2_machine_options(MachineClass *m)
 973{
 974    pc_i440fx_4_2_machine_options(m);
 975    m->desc = "Xen Fully-virtualized PC";
 976    m->max_cpus = HVM_MAX_VCPUS;
 977    m->default_machine_opts = "accel=xen";
 978}
 979
 980DEFINE_PC_MACHINE(xenfv_4_2, "xenfv-4.2", pc_xen_hvm_init,
 981                  xenfv_4_2_machine_options);
 982
 983static void xenfv_3_1_machine_options(MachineClass *m)
 984{
 985    pc_i440fx_3_1_machine_options(m);
 986    m->desc = "Xen Fully-virtualized PC";
 987    m->alias = "xenfv";
 988    m->max_cpus = HVM_MAX_VCPUS;
 989    m->default_machine_opts = "accel=xen";
 990}
 991
 992DEFINE_PC_MACHINE(xenfv, "xenfv-3.1", pc_xen_hvm_init,
 993                  xenfv_3_1_machine_options);
 994#endif
 995