hw/i386/pc_q35.c

   1 /*
   2  * Q35 chipset based pc system emulator
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  * Copyright (c) 2009, 2010
   6  *               Isaku Yamahata <yamahata at valinux co jp>
   7  *               VA Linux Systems Japan K.K.
   8  * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
   9  *
  10  * This is based on pc.c, but heavily modified.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a copy
  13  * of this software and associated documentation files (the "Software"), to deal
  14  * in the Software without restriction, including without limitation the rights
  15  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  16  * copies of the Software, and to permit persons to whom the Software is
  17  * furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included in
  20  * all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  27  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  28  * THE SOFTWARE.
  29  */
  30
  31 #include "qemu/osdep.h"
  32 #include "qemu/units.h"
  33 #include "hw/loader.h"
  34 #include "sysemu/arch_init.h"
  35 #include "hw/i2c/smbus_eeprom.h"
  36 #include "hw/timer/mc146818rtc.h"
  37 #include "hw/xen/xen.h"
  38 #include "sysemu/kvm.h"
  39 #include "kvm_i386.h"
  40 #include "hw/kvm/clock.h"
  41 #include "hw/pci-host/q35.h"
  42 #include "hw/qdev-properties.h"
  43 #include "exec/address-spaces.h"
  44 #include "hw/i386/pc.h"
  45 #include "hw/i386/ich9.h"
  46 #include "hw/i386/amd_iommu.h"
  47 #include "hw/i386/intel_iommu.h"
  48 #include "hw/display/ramfb.h"
  49 #include "hw/firmware/smbios.h"
  50 #include "hw/ide/pci.h"
  51 #include "hw/ide/ahci.h"
  52 #include "hw/usb.h"
  53 #include "qapi/error.h"
  54 #include "qemu/error-report.h"
  55 #include "sysemu/numa.h"
  56
  57 /* ICH9 AHCI has 6 ports */
  58 #define MAX_SATA_PORTS     6
  59
  60 struct ehci_companions {
  61     const char *name;
  62     int func;
  63     int port;
  64 };
  65
  66 static const struct ehci_companions ich9_1d[] = {
  67     { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
  68     { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
  69     { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
  70 };
  71
  72 static const struct ehci_companions ich9_1a[] = {
  73     { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
  74     { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
  75     { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
  76 };
  77
  78 static int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
  79 {
  80     const struct ehci_companions *comp;
  81     PCIDevice *ehci, *uhci;
  82     BusState *usbbus;
  83     const char *name;
  84     int i;
  85
  86     switch (slot) {
  87     case 0x1d:
  88         name = "ich9-usb-ehci1";
  89         comp = ich9_1d;
  90         break;
  91     case 0x1a:
  92         name = "ich9-usb-ehci2";
  93         comp = ich9_1a;
  94         break;
  95     default:
  96         return -1;
  97     }
  98
  99     ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name);
 100     qdev_init_nofail(&ehci->qdev);
 101     usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
 102
 103     for (i = 0; i < 3; i++) {
 104         uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func),
 105                                         true, comp[i].name);
 106         qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
 107         qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
 108         qdev_init_nofail(&uhci->qdev);
 109     }
 110     return 0;
 111 }
 112
 113 /* PC hardware initialisation */
 114 static void pc_q35_init(MachineState *machine)
 115 {
 116     PCMachineState *pcms = PC_MACHINE(machine);
 117     PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
 118     Q35PCIHost *q35_host;
 119     PCIHostState *phb;
 120     PCIBus *host_bus;
 121     PCIDevice *lpc;
 122     DeviceState *lpc_dev;
 123     BusState *idebus[MAX_SATA_PORTS];
 124     ISADevice *rtc_state;
 125     MemoryRegion *system_io = get_system_io();
 126     MemoryRegion *pci_memory;
 127     MemoryRegion *rom_memory;
 128     MemoryRegion *ram_memory;
 129     GSIState *gsi_state;
 130     ISABus *isa_bus;
 131     qemu_irq *i8259;
 132     int i;
 133     ICH9LPCState *ich9_lpc;
 134     PCIDevice *ahci;
 135     ram_addr_t lowmem;
 136     DriveInfo *hd[MAX_SATA_PORTS];
 137     MachineClass *mc = MACHINE_GET_CLASS(machine);
 138
 139     /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
 140      * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
 141      * also known as MMCFG).
 142      * If it doesn't, we need to split it in chunks below and above 4G.
 143      * In any case, try to make sure that guest addresses aligned at
 144      * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
 145      */
 146     if (machine->ram_size >= 0xb0000000) {
 147         lowmem = 0x80000000;
 148     } else {
 149         lowmem = 0xb0000000;
 150     }
 151
 152     /* Handle the machine opt max-ram-below-4g.  It is basically doing
 153      * min(qemu limit, user limit).
 154      */
 155     if (!pcms->max_ram_below_4g) {
 156         pcms->max_ram_below_4g = 1ULL << 32; /* default: 4G */;
 157     }
 158     if (lowmem > pcms->max_ram_below_4g) {
 159         lowmem = pcms->max_ram_below_4g;
 160         if (machine->ram_size - lowmem > lowmem &&
 161             lowmem & (1 * GiB - 1)) {
 162             warn_report("There is possibly poor performance as the ram size "
 163                         " (0x%" PRIx64 ") is more then twice the size of"
 164                         " max-ram-below-4g (%"PRIu64") and"
 165                         " max-ram-below-4g is not a multiple of 1G.",
 166                         (uint64_t)machine->ram_size, pcms->max_ram_below_4g);
 167         }
 168     }
 169
 170     if (machine->ram_size >= lowmem) {
 171         pcms->above_4g_mem_size = machine->ram_size - lowmem;
 172         pcms->below_4g_mem_size = lowmem;
 173     } else {
 174         pcms->above_4g_mem_size = 0;
 175         pcms->below_4g_mem_size = machine->ram_size;
 176     }
 177
 178     if (xen_enabled()) {
 179         xen_hvm_init(pcms, &ram_memory);
 180     }
 181
 182     pc_cpus_init(pcms);
 183
 184     kvmclock_create();
 185
 186     /* pci enabled */
 187     if (pcmc->pci_enabled) {
 188         pci_memory = g_new(MemoryRegion, 1);
 189         memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
 190         rom_memory = pci_memory;
 191     } else {
 192         pci_memory = NULL;
 193         rom_memory = get_system_memory();
 194     }
 195
 196     pc_guest_info_init(pcms);
 197
 198     if (pcmc->smbios_defaults) {
 199         /* These values are guest ABI, do not change */
 200         smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
 201                             mc->name, pcmc->smbios_legacy_mode,
 202                             pcmc->smbios_uuid_encoded,
 203                             SMBIOS_ENTRY_POINT_21);
 204     }
 205
 206     /* allocate ram and load rom/bios */
 207     if (!xen_enabled()) {
 208         pc_memory_init(pcms, get_system_memory(),
 209                        rom_memory, &ram_memory);
 210     }
 211
 212     /* irq lines */
 213     gsi_state = g_malloc0(sizeof(*gsi_state));
 214     if (kvm_ioapic_in_kernel()) {
 215         kvm_pc_setup_irq_routing(pcmc->pci_enabled);
 216         pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
 217                                        GSI_NUM_PINS);
 218     } else {
 219         pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
 220     }
 221
 222     /* create pci host bus */
 223     q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE));
 224
 225     object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL);
 226     object_property_set_link(OBJECT(q35_host), OBJECT(ram_memory),
 227                              MCH_HOST_PROP_RAM_MEM, NULL);
 228     object_property_set_link(OBJECT(q35_host), OBJECT(pci_memory),
 229                              MCH_HOST_PROP_PCI_MEM, NULL);
 230     object_property_set_link(OBJECT(q35_host), OBJECT(get_system_memory()),
 231                              MCH_HOST_PROP_SYSTEM_MEM, NULL);
 232     object_property_set_link(OBJECT(q35_host), OBJECT(system_io),
 233                              MCH_HOST_PROP_IO_MEM, NULL);
 234     object_property_set_int(OBJECT(q35_host), pcms->below_4g_mem_size,
 235                             PCI_HOST_BELOW_4G_MEM_SIZE, NULL);
 236     object_property_set_int(OBJECT(q35_host), pcms->above_4g_mem_size,
 237                             PCI_HOST_ABOVE_4G_MEM_SIZE, NULL);
 238     /* pci */
 239     qdev_init_nofail(DEVICE(q35_host));
 240     phb = PCI_HOST_BRIDGE(q35_host);
 241     host_bus = phb->bus;
 242     /* create ISA bus */
 243     lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
 244                                           ICH9_LPC_FUNC), true,
 245                                           TYPE_ICH9_LPC_DEVICE);
 246
 247     object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
 248                              TYPE_HOTPLUG_HANDLER,
 249                              (Object **)&pcms->acpi_dev,
 250                              object_property_allow_set_link,
 251                              OBJ_PROP_LINK_STRONG, &error_abort);
 252     object_property_set_link(OBJECT(machine), OBJECT(lpc),
 253                              PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
 254
 255     ich9_lpc = ICH9_LPC_DEVICE(lpc);
 256     lpc_dev = DEVICE(lpc);
 257     for (i = 0; i < GSI_NUM_PINS; i++) {
 258         qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, pcms->gsi[i]);
 259     }
 260     pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
 261                  ICH9_LPC_NB_PIRQS);
 262     pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq);
 263     isa_bus = ich9_lpc->isa_bus;
 264
 265     if (kvm_pic_in_kernel()) {
 266         i8259 = kvm_i8259_init(isa_bus);
 267     } else if (xen_enabled()) {
 268         i8259 = xen_interrupt_controller_init();
 269     } else {
 270         i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq());
 271     }
 272
 273     for (i = 0; i < ISA_NUM_IRQS; i++) {
 274         gsi_state->i8259_irq[i] = i8259[i];
 275     }
 276     g_free(i8259);
 277
 278     if (pcmc->pci_enabled) {
 279         ioapic_init_gsi(gsi_state, "q35");
 280     }
 281
 282     pc_register_ferr_irq(pcms->gsi[13]);
 283
 284     assert(pcms->vmport != ON_OFF_AUTO__MAX);
 285     if (pcms->vmport == ON_OFF_AUTO_AUTO) {
 286         pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
 287     }
 288
 289     /* init basic PC hardware */
 290     pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, !mc->no_floppy,
 291                          (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit_enabled,
 292                          0xff0104);
 293
 294     /* connect pm stuff to lpc */
 295     ich9_lpc_pm_init(lpc, pc_machine_is_smm_enabled(pcms));
 296
 297     if (pcms->sata_enabled) {
 298         /* ahci and SATA device, for q35 1 ahci controller is built-in */
 299         ahci = pci_create_simple_multifunction(host_bus,
 300                                                PCI_DEVFN(ICH9_SATA1_DEV,
 301                                                          ICH9_SATA1_FUNC),
 302                                                true, "ich9-ahci");
 303         idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
 304         idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
 305         g_assert(MAX_SATA_PORTS == ahci_get_num_ports(ahci));
 306         ide_drive_get(hd, ahci_get_num_ports(ahci));
 307         ahci_ide_create_devs(ahci, hd);
 308     } else {
 309         idebus[0] = idebus[1] = NULL;
 310     }
 311
 312     if (machine_usb(machine)) {
 313         /* Should we create 6 UHCI according to ich9 spec? */
 314         ehci_create_ich9_with_companions(host_bus, 0x1d);
 315     }
 316
 317     if (pcms->smbus_enabled) {
 318         /* TODO: Populate SPD eeprom data.  */
 319         smbus_eeprom_init(ich9_smb_init(host_bus,
 320                                         PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
 321                                         0xb100),
 322                           8, NULL, 0);
 323     }
 324
 325     pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
 326
 327     /* the rest devices to which pci devfn is automatically assigned */
 328     pc_vga_init(isa_bus, host_bus);
 329     pc_nic_init(pcmc, isa_bus, host_bus);
 330
 331     if (machine->nvdimms_state->is_enabled) {
 332         nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
 333                                pcms->fw_cfg, OBJECT(pcms));
 334     }
 335 }
 336
 337 #define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \
 338     static void pc_init_##suffix(MachineState *machine) \
 339     { \
 340         void (*compat)(MachineState *m) = (compatfn); \
 341         if (compat) { \
 342             compat(machine); \
 343         } \
 344         pc_q35_init(machine); \
 345     } \
 346     DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
 347
 348
 349 static void pc_q35_machine_options(MachineClass *m)
 350 {
 351     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 352     pcmc->default_nic_model = "e1000e";
 353
 354     m->family = "pc_q35";
 355     m->desc = "Standard PC (Q35 + ICH9, 2009)";
 356     m->units_per_default_bus = 1;
 357     m->default_machine_opts = "firmware=bios-256k.bin";
 358     m->default_display = "std";
 359     m->default_kernel_irqchip_split = false;
 360     m->no_floppy = 1;
 361     machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE);
 362     machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE);
 363     machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
 364     m->max_cpus = 288;
 365 }
 366
 367 static void pc_q35_4_1_machine_options(MachineClass *m)
 368 {
 369     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 370     pc_q35_machine_options(m);
 371     m->alias = "q35";
 372     pcmc->default_cpu_version = 1;
 373 }
 374
 375 DEFINE_Q35_MACHINE(v4_1, "pc-q35-4.1", NULL,
 376                    pc_q35_4_1_machine_options);
 377
 378 static void pc_q35_4_0_1_machine_options(MachineClass *m)
 379 {
 380     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 381     pc_q35_4_1_machine_options(m);
 382     m->alias = NULL;
 383     pcmc->default_cpu_version = CPU_VERSION_LEGACY;
 384     /*
 385      * This is the default machine for the 4.0-stable branch. It is basically
 386      * a 4.0 that doesn't use split irqchip by default. It MUST hence apply the
 387      * 4.0 compat props.
 388      */
 389     compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
 390     compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
 391 }
 392
 393 DEFINE_Q35_MACHINE(v4_0_1, "pc-q35-4.0.1", NULL,
 394                    pc_q35_4_0_1_machine_options);
 395
 396 static void pc_q35_4_0_machine_options(MachineClass *m)
 397 {
 398     pc_q35_4_0_1_machine_options(m);
 399     m->default_kernel_irqchip_split = true;
 400     m->alias = NULL;
 401     /* Compat props are applied by the 4.0.1 machine */
 402 }
 403
 404 DEFINE_Q35_MACHINE(v4_0, "pc-q35-4.0", NULL,
 405                    pc_q35_4_0_machine_options);
 406
 407 static void pc_q35_3_1_machine_options(MachineClass *m)
 408 {
 409     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 410
 411     pc_q35_4_0_machine_options(m);
 412     m->default_kernel_irqchip_split = false;
 413     m->smbus_no_migration_support = true;
 414     m->alias = NULL;
 415     pcmc->pvh_enabled = false;
 416     compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
 417     compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
 418 }
 419
 420 DEFINE_Q35_MACHINE(v3_1, "pc-q35-3.1", NULL,
 421                    pc_q35_3_1_machine_options);
 422
 423 static void pc_q35_3_0_machine_options(MachineClass *m)
 424 {
 425     pc_q35_3_1_machine_options(m);
 426     compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
 427     compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
 428 }
 429
 430 DEFINE_Q35_MACHINE(v3_0, "pc-q35-3.0", NULL,
 431                     pc_q35_3_0_machine_options);
 432
 433 static void pc_q35_2_12_machine_options(MachineClass *m)
 434 {
 435     pc_q35_3_0_machine_options(m);
 436     compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
 437     compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
 438 }
 439
 440 DEFINE_Q35_MACHINE(v2_12, "pc-q35-2.12", NULL,
 441                    pc_q35_2_12_machine_options);
 442
 443 static void pc_q35_2_11_machine_options(MachineClass *m)
 444 {
 445     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 446
 447     pc_q35_2_12_machine_options(m);
 448     pcmc->default_nic_model = "e1000";
 449     compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
 450     compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
 451 }
 452
 453 DEFINE_Q35_MACHINE(v2_11, "pc-q35-2.11", NULL,
 454                    pc_q35_2_11_machine_options);
 455
 456 static void pc_q35_2_10_machine_options(MachineClass *m)
 457 {
 458     pc_q35_2_11_machine_options(m);
 459     compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
 460     compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
 461     m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
 462     m->auto_enable_numa_with_memhp = false;
 463 }
 464
 465 DEFINE_Q35_MACHINE(v2_10, "pc-q35-2.10", NULL,
 466                    pc_q35_2_10_machine_options);
 467
 468 static void pc_q35_2_9_machine_options(MachineClass *m)
 469 {
 470     pc_q35_2_10_machine_options(m);
 471     compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
 472     compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
 473 }
 474
 475 DEFINE_Q35_MACHINE(v2_9, "pc-q35-2.9", NULL,
 476                    pc_q35_2_9_machine_options);
 477
 478 static void pc_q35_2_8_machine_options(MachineClass *m)
 479 {
 480     pc_q35_2_9_machine_options(m);
 481     compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
 482     compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
 483 }
 484
 485 DEFINE_Q35_MACHINE(v2_8, "pc-q35-2.8", NULL,
 486                    pc_q35_2_8_machine_options);
 487
 488 static void pc_q35_2_7_machine_options(MachineClass *m)
 489 {
 490     pc_q35_2_8_machine_options(m);
 491     m->max_cpus = 255;
 492     compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
 493     compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
 494 }
 495
 496 DEFINE_Q35_MACHINE(v2_7, "pc-q35-2.7", NULL,
 497                    pc_q35_2_7_machine_options);
 498
 499 static void pc_q35_2_6_machine_options(MachineClass *m)
 500 {
 501     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 502
 503     pc_q35_2_7_machine_options(m);
 504     pcmc->legacy_cpu_hotplug = true;
 505     pcmc->linuxboot_dma_enabled = false;
 506     compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
 507     compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
 508 }
 509
 510 DEFINE_Q35_MACHINE(v2_6, "pc-q35-2.6", NULL,
 511                    pc_q35_2_6_machine_options);
 512
 513 static void pc_q35_2_5_machine_options(MachineClass *m)
 514 {
 515     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 516
 517     pc_q35_2_6_machine_options(m);
 518     pcmc->save_tsc_khz = false;
 519     m->legacy_fw_cfg_order = 1;
 520     compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
 521     compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
 522 }
 523
 524 DEFINE_Q35_MACHINE(v2_5, "pc-q35-2.5", NULL,
 525                    pc_q35_2_5_machine_options);
 526
 527 static void pc_q35_2_4_machine_options(MachineClass *m)
 528 {
 529     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 530
 531     pc_q35_2_5_machine_options(m);
 532     m->hw_version = "2.4.0";
 533     pcmc->broken_reserved_end = true;
 534     compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
 535     compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
 536 }
 537
 538 DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,
 539                    pc_q35_2_4_machine_options);