hw/pc_piix.c

   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 <glib.h>
  26
  27 #include "hw.h"
  28 #include "pc.h"
  29 #include "apic.h"
  30 #include "pci.h"
  31 #include "pci_ids.h"
  32 #include "usb.h"
  33 #include "net.h"
  34 #include "boards.h"
  35 #include "ide.h"
  36 #include "kvm.h"
  37 #include "kvm/clock.h"
  38 #include "sysemu.h"
  39 #include "sysbus.h"
  40 #include "arch_init.h"
  41 #include "blockdev.h"
  42 #include "smbus.h"
  43 #include "xen.h"
  44 #include "memory.h"
  45 #include "exec-memory.h"
  46 #include "cpu.h"
  47 #ifdef CONFIG_XEN
  48 #  include <xen/hvm/hvm_info_table.h>
  49 #endif
  50
  51 #define MAX_IDE_BUS 2
  52
  53 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  54 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  55 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  56
  57 /* PC hardware initialisation */
  58 static void pc_init1(MemoryRegion *system_memory,
  59                      MemoryRegion *system_io,
  60                      ram_addr_t ram_size,
  61                      const char *boot_device,
  62                      const char *kernel_filename,
  63                      const char *kernel_cmdline,
  64                      const char *initrd_filename,
  65                      const char *cpu_model,
  66                      int pci_enabled,
  67                      int kvmclock_enabled)
  68 {
  69     int i;
  70     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  71     PCIBus *pci_bus;
  72     ISABus *isa_bus;
  73     PCII440FXState *i440fx_state;
  74     int piix3_devfn = -1;
  75     qemu_irq *cpu_irq;
  76     qemu_irq *gsi;
  77     qemu_irq *i8259;
  78     qemu_irq *smi_irq;
  79     GSIState *gsi_state;
  80     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  81     BusState *idebus[MAX_IDE_BUS];
  82     ISADevice *rtc_state;
  83     ISADevice *floppy;
  84     MemoryRegion *ram_memory;
  85     MemoryRegion *pci_memory;
  86     MemoryRegion *rom_memory;
  87     void *fw_cfg = NULL;
  88
  89     pc_cpus_init(cpu_model);
  90
  91     if (kvmclock_enabled) {
  92         kvmclock_create();
  93     }
  94
  95     if (ram_size >= 0xe0000000 ) {
  96         above_4g_mem_size = ram_size - 0xe0000000;
  97         below_4g_mem_size = 0xe0000000;
  98     } else {
  99         above_4g_mem_size = 0;
 100         below_4g_mem_size = ram_size;
 101     }
 102
 103     if (pci_enabled) {
 104         pci_memory = g_new(MemoryRegion, 1);
 105         memory_region_init(pci_memory, "pci", INT64_MAX);
 106         rom_memory = pci_memory;
 107     } else {
 108         pci_memory = NULL;
 109         rom_memory = system_memory;
 110     }
 111
 112     /* allocate ram and load rom/bios */
 113     if (!xen_enabled()) {
 114         fw_cfg = pc_memory_init(system_memory,
 115                        kernel_filename, kernel_cmdline, initrd_filename,
 116                        below_4g_mem_size, above_4g_mem_size,
 117                        rom_memory, &ram_memory);
 118     }
 119
 120     gsi_state = g_malloc0(sizeof(*gsi_state));
 121     if (kvm_irqchip_in_kernel()) {
 122         kvm_pc_setup_irq_routing(pci_enabled);
 123         gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
 124                                  GSI_NUM_PINS);
 125     } else {
 126         gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
 127     }
 128
 129     if (pci_enabled) {
 130         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
 131                               system_memory, system_io, ram_size,
 132                               below_4g_mem_size,
 133                               0x100000000ULL - below_4g_mem_size,
 134                               0x100000000ULL + above_4g_mem_size,
 135                               (sizeof(hwaddr) == 4
 136                                ? 0
 137                                : ((uint64_t)1 << 62)),
 138                               pci_memory, ram_memory);
 139     } else {
 140         pci_bus = NULL;
 141         i440fx_state = NULL;
 142         isa_bus = isa_bus_new(NULL, system_io);
 143         no_hpet = 1;
 144     }
 145     isa_bus_irqs(isa_bus, gsi);
 146
 147     if (kvm_irqchip_in_kernel()) {
 148         i8259 = kvm_i8259_init(isa_bus);
 149     } else if (xen_enabled()) {
 150         i8259 = xen_interrupt_controller_init();
 151     } else {
 152         cpu_irq = pc_allocate_cpu_irq();
 153         i8259 = i8259_init(isa_bus, cpu_irq[0]);
 154     }
 155
 156     for (i = 0; i < ISA_NUM_IRQS; i++) {
 157         gsi_state->i8259_irq[i] = i8259[i];
 158     }
 159     if (pci_enabled) {
 160         ioapic_init_gsi(gsi_state, "i440fx");
 161     }
 162
 163     pc_register_ferr_irq(gsi[13]);
 164
 165     pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
 166     if (xen_enabled()) {
 167         pci_create_simple(pci_bus, -1, "xen-platform");
 168     }
 169
 170     /* init basic PC hardware */
 171     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled());
 172
 173     pc_nic_init(isa_bus, pci_bus);
 174
 175     ide_drive_get(hd, MAX_IDE_BUS);
 176     if (pci_enabled) {
 177         PCIDevice *dev;
 178         if (xen_enabled()) {
 179             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 180         } else {
 181             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 182         }
 183         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 184         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 185     } else {
 186         for(i = 0; i < MAX_IDE_BUS; i++) {
 187             ISADevice *dev;
 188             dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
 189                                ide_irq[i],
 190                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 191             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 192         }
 193     }
 194
 195     audio_init(isa_bus, pci_enabled ? pci_bus : NULL);
 196
 197     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 198                  floppy, idebus[0], idebus[1], rtc_state);
 199
 200     if (pci_enabled && usb_enabled(false)) {
 201         pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
 202     }
 203
 204     if (pci_enabled && acpi_enabled) {
 205         i2c_bus *smbus;
 206
 207         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 208         /* TODO: Populate SPD eeprom data.  */
 209         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 210                               gsi[9], *smi_irq,
 211                               kvm_enabled(), fw_cfg);
 212         smbus_eeprom_init(smbus, 8, NULL, 0);
 213     }
 214
 215     if (pci_enabled) {
 216         pc_pci_device_init(pci_bus);
 217     }
 218 }
 219
 220 static void pc_init_pci(QEMUMachineInitArgs *args)
 221 {
 222     ram_addr_t ram_size = args->ram_size;
 223     const char *cpu_model = args->cpu_model;
 224     const char *kernel_filename = args->kernel_filename;
 225     const char *kernel_cmdline = args->kernel_cmdline;
 226     const char *initrd_filename = args->initrd_filename;
 227     const char *boot_device = args->boot_device;
 228     pc_init1(get_system_memory(),
 229              get_system_io(),
 230              ram_size, boot_device,
 231              kernel_filename, kernel_cmdline,
 232              initrd_filename, cpu_model, 1, 1);
 233 }
 234
 235 static void pc_init_pci_1_3(QEMUMachineInitArgs *args)
 236 {
 237     enable_kvm_pv_eoi();
 238     pc_init_pci(args);
 239 }
 240
 241 static void pc_init_pci_no_kvmclock(QEMUMachineInitArgs *args)
 242 {
 243     ram_addr_t ram_size = args->ram_size;
 244     const char *cpu_model = args->cpu_model;
 245     const char *kernel_filename = args->kernel_filename;
 246     const char *kernel_cmdline = args->kernel_cmdline;
 247     const char *initrd_filename = args->initrd_filename;
 248     const char *boot_device = args->boot_device;
 249     pc_init1(get_system_memory(),
 250              get_system_io(),
 251              ram_size, boot_device,
 252              kernel_filename, kernel_cmdline,
 253              initrd_filename, cpu_model, 1, 0);
 254 }
 255
 256 static void pc_init_isa(QEMUMachineInitArgs *args)
 257 {
 258     ram_addr_t ram_size = args->ram_size;
 259     const char *cpu_model = args->cpu_model;
 260     const char *kernel_filename = args->kernel_filename;
 261     const char *kernel_cmdline = args->kernel_cmdline;
 262     const char *initrd_filename = args->initrd_filename;
 263     const char *boot_device = args->boot_device;
 264     if (cpu_model == NULL)
 265         cpu_model = "486";
 266     pc_init1(get_system_memory(),
 267              get_system_io(),
 268              ram_size, boot_device,
 269              kernel_filename, kernel_cmdline,
 270              initrd_filename, cpu_model, 0, 1);
 271 }
 272
 273 #ifdef CONFIG_XEN
 274 static void pc_xen_hvm_init(QEMUMachineInitArgs *args)
 275 {
 276     if (xen_hvm_init() != 0) {
 277         hw_error("xen hardware virtual machine initialisation failed");
 278     }
 279     pc_init_pci_no_kvmclock(args);
 280     xen_vcpu_init();
 281 }
 282 #endif
 283
 284 static QEMUMachine pc_machine_v1_4 = {
 285     .name = "pc-1.4",
 286     .alias = "pc",
 287     .desc = "Standard PC",
 288     .init = pc_init_pci_1_3,
 289     .max_cpus = 255,
 290     .is_default = 1,
 291 };
 292
 293 static QEMUMachine pc_machine_v1_3 = {
 294     .name = "pc-1.3",
 295     .desc = "Standard PC",
 296     .init = pc_init_pci_1_3,
 297     .max_cpus = 255,
 298     .compat_props = (GlobalProperty[]) {
 299         { /* end of list */ }
 300     },
 301 };
 302
 303 #define PC_COMPAT_1_2 \
 304         {\
 305             .driver   = "nec-usb-xhci",\
 306             .property = "msi",\
 307             .value    = "off",\
 308         },{\
 309             .driver   = "nec-usb-xhci",\
 310             .property = "msix",\
 311             .value    = "off",\
 312         },{\
 313             .driver   = "ivshmem",\
 314             .property = "use64",\
 315             .value    = "0",\
 316         },{\
 317             .driver   = "qxl",\
 318             .property = "revision",\
 319             .value    = stringify(3),\
 320         },{\
 321             .driver   = "qxl-vga",\
 322             .property = "revision",\
 323             .value    = stringify(3),\
 324         },{\
 325             .driver   = "VGA",\
 326             .property = "mmio",\
 327             .value    = "off",\
 328         }
 329
 330 static QEMUMachine pc_machine_v1_2 = {
 331     .name = "pc-1.2",
 332     .desc = "Standard PC",
 333     .init = pc_init_pci,
 334     .max_cpus = 255,
 335     .compat_props = (GlobalProperty[]) {
 336         PC_COMPAT_1_2,
 337         { /* end of list */ }
 338     },
 339 };
 340
 341 #define PC_COMPAT_1_1 \
 342         PC_COMPAT_1_2,\
 343         {\
 344             .driver   = "virtio-scsi-pci",\
 345             .property = "hotplug",\
 346             .value    = "off",\
 347         },{\
 348             .driver   = "virtio-scsi-pci",\
 349             .property = "param_change",\
 350             .value    = "off",\
 351         },{\
 352             .driver   = "VGA",\
 353             .property = "vgamem_mb",\
 354             .value    = stringify(8),\
 355         },{\
 356             .driver   = "vmware-svga",\
 357             .property = "vgamem_mb",\
 358             .value    = stringify(8),\
 359         },{\
 360             .driver   = "qxl-vga",\
 361             .property = "vgamem_mb",\
 362             .value    = stringify(8),\
 363         },{\
 364             .driver   = "qxl",\
 365             .property = "vgamem_mb",\
 366             .value    = stringify(8),\
 367         },{\
 368             .driver   = "virtio-blk-pci",\
 369             .property = "config-wce",\
 370             .value    = "off",\
 371         }
 372
 373 static QEMUMachine pc_machine_v1_1 = {
 374     .name = "pc-1.1",
 375     .desc = "Standard PC",
 376     .init = pc_init_pci,
 377     .max_cpus = 255,
 378     .compat_props = (GlobalProperty[]) {
 379         PC_COMPAT_1_1,
 380         { /* end of list */ }
 381     },
 382 };
 383
 384 #define PC_COMPAT_1_0 \
 385         PC_COMPAT_1_1,\
 386         {\
 387             .driver   = "pc-sysfw",\
 388             .property = "rom_only",\
 389             .value    = stringify(1),\
 390         }, {\
 391             .driver   = "isa-fdc",\
 392             .property = "check_media_rate",\
 393             .value    = "off",\
 394         }, {\
 395             .driver   = "virtio-balloon-pci",\
 396             .property = "class",\
 397             .value    = stringify(PCI_CLASS_MEMORY_RAM),\
 398         },{\
 399             .driver   = "apic",\
 400             .property = "vapic",\
 401             .value    = "off",\
 402         },{\
 403             .driver   = TYPE_USB_DEVICE,\
 404             .property = "full-path",\
 405             .value    = "no",\
 406         }
 407
 408 static QEMUMachine pc_machine_v1_0 = {
 409     .name = "pc-1.0",
 410     .desc = "Standard PC",
 411     .init = pc_init_pci,
 412     .max_cpus = 255,
 413     .compat_props = (GlobalProperty[]) {
 414         PC_COMPAT_1_0,
 415         { /* end of list */ }
 416     },
 417     .hw_version = "1.0",
 418 };
 419
 420 #define PC_COMPAT_0_15 \
 421         PC_COMPAT_1_0
 422
 423 static QEMUMachine pc_machine_v0_15 = {
 424     .name = "pc-0.15",
 425     .desc = "Standard PC",
 426     .init = pc_init_pci,
 427     .max_cpus = 255,
 428     .compat_props = (GlobalProperty[]) {
 429         PC_COMPAT_0_15,
 430         { /* end of list */ }
 431     },
 432     .hw_version = "0.15",
 433 };
 434
 435 #define PC_COMPAT_0_14 \
 436         PC_COMPAT_0_15,\
 437         {\
 438             .driver   = "virtio-blk-pci",\
 439             .property = "event_idx",\
 440             .value    = "off",\
 441         },{\
 442             .driver   = "virtio-serial-pci",\
 443             .property = "event_idx",\
 444             .value    = "off",\
 445         },{\
 446             .driver   = "virtio-net-pci",\
 447             .property = "event_idx",\
 448             .value    = "off",\
 449         },{\
 450             .driver   = "virtio-balloon-pci",\
 451             .property = "event_idx",\
 452             .value    = "off",\
 453         }
 454
 455 static QEMUMachine pc_machine_v0_14 = {
 456     .name = "pc-0.14",
 457     .desc = "Standard PC",
 458     .init = pc_init_pci,
 459     .max_cpus = 255,
 460     .compat_props = (GlobalProperty[]) {
 461         PC_COMPAT_0_14,
 462         {
 463             .driver   = "qxl",
 464             .property = "revision",
 465             .value    = stringify(2),
 466         },{
 467             .driver   = "qxl-vga",
 468             .property = "revision",
 469             .value    = stringify(2),
 470         },
 471         { /* end of list */ }
 472     },
 473     .hw_version = "0.14",
 474 };
 475
 476 #define PC_COMPAT_0_13 \
 477         PC_COMPAT_0_14,\
 478         {\
 479             .driver   = TYPE_PCI_DEVICE,\
 480             .property = "command_serr_enable",\
 481             .value    = "off",\
 482         },{\
 483             .driver   = "AC97",\
 484             .property = "use_broken_id",\
 485             .value    = stringify(1),\
 486         }
 487
 488 static QEMUMachine pc_machine_v0_13 = {
 489     .name = "pc-0.13",
 490     .desc = "Standard PC",
 491     .init = pc_init_pci_no_kvmclock,
 492     .max_cpus = 255,
 493     .compat_props = (GlobalProperty[]) {
 494         PC_COMPAT_0_13,
 495         {
 496             .driver   = "virtio-9p-pci",
 497             .property = "vectors",
 498             .value    = stringify(0),
 499         },{
 500             .driver   = "VGA",
 501             .property = "rombar",
 502             .value    = stringify(0),
 503         },{
 504             .driver   = "vmware-svga",
 505             .property = "rombar",
 506             .value    = stringify(0),
 507         },
 508         { /* end of list */ }
 509     },
 510     .hw_version = "0.13",
 511 };
 512
 513 #define PC_COMPAT_0_12 \
 514         PC_COMPAT_0_13,\
 515         {\
 516             .driver   = "virtio-serial-pci",\
 517             .property = "max_ports",\
 518             .value    = stringify(1),\
 519         },{\
 520             .driver   = "virtio-serial-pci",\
 521             .property = "vectors",\
 522             .value    = stringify(0),\
 523         }
 524
 525 static QEMUMachine pc_machine_v0_12 = {
 526     .name = "pc-0.12",
 527     .desc = "Standard PC",
 528     .init = pc_init_pci_no_kvmclock,
 529     .max_cpus = 255,
 530     .compat_props = (GlobalProperty[]) {
 531         PC_COMPAT_0_12,
 532         {
 533             .driver   = "VGA",
 534             .property = "rombar",
 535             .value    = stringify(0),
 536         },{
 537             .driver   = "vmware-svga",
 538             .property = "rombar",
 539             .value    = stringify(0),
 540         },
 541         { /* end of list */ }
 542     },
 543     .hw_version = "0.12",
 544 };
 545
 546 #define PC_COMPAT_0_11 \
 547         PC_COMPAT_0_12,\
 548         {\
 549             .driver   = "virtio-blk-pci",\
 550             .property = "vectors",\
 551             .value    = stringify(0),\
 552         },{\
 553             .driver   = TYPE_PCI_DEVICE,\
 554             .property = "rombar",\
 555             .value    = stringify(0),\
 556         }
 557
 558 static QEMUMachine pc_machine_v0_11 = {
 559     .name = "pc-0.11",
 560     .desc = "Standard PC, qemu 0.11",
 561     .init = pc_init_pci_no_kvmclock,
 562     .max_cpus = 255,
 563     .compat_props = (GlobalProperty[]) {
 564         PC_COMPAT_0_11,
 565         {
 566             .driver   = "ide-drive",
 567             .property = "ver",
 568             .value    = "0.11",
 569         },{
 570             .driver   = "scsi-disk",
 571             .property = "ver",
 572             .value    = "0.11",
 573         },
 574         { /* end of list */ }
 575     },
 576     .hw_version = "0.11",
 577 };
 578
 579 static QEMUMachine pc_machine_v0_10 = {
 580     .name = "pc-0.10",
 581     .desc = "Standard PC, qemu 0.10",
 582     .init = pc_init_pci_no_kvmclock,
 583     .max_cpus = 255,
 584     .compat_props = (GlobalProperty[]) {
 585         PC_COMPAT_0_11,
 586         {
 587             .driver   = "virtio-blk-pci",
 588             .property = "class",
 589             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 590         },{
 591             .driver   = "virtio-serial-pci",
 592             .property = "class",
 593             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 594         },{
 595             .driver   = "virtio-net-pci",
 596             .property = "vectors",
 597             .value    = stringify(0),
 598         },{
 599             .driver   = "ide-drive",
 600             .property = "ver",
 601             .value    = "0.10",
 602         },{
 603             .driver   = "scsi-disk",
 604             .property = "ver",
 605             .value    = "0.10",
 606         },
 607         { /* end of list */ }
 608     },
 609     .hw_version = "0.10",
 610 };
 611
 612 static QEMUMachine isapc_machine = {
 613     .name = "isapc",
 614     .desc = "ISA-only PC",
 615     .init = pc_init_isa,
 616     .max_cpus = 1,
 617     .compat_props = (GlobalProperty[]) {
 618         {
 619             .driver   = "pc-sysfw",
 620             .property = "rom_only",
 621             .value    = stringify(1),
 622         },
 623         { /* end of list */ }
 624     },
 625 };
 626
 627 #ifdef CONFIG_XEN
 628 static QEMUMachine xenfv_machine = {
 629     .name = "xenfv",
 630     .desc = "Xen Fully-virtualized PC",
 631     .init = pc_xen_hvm_init,
 632     .max_cpus = HVM_MAX_VCPUS,
 633     .default_machine_opts = "accel=xen",
 634 };
 635 #endif
 636
 637 static void pc_machine_init(void)
 638 {
 639     qemu_register_machine(&pc_machine_v1_4);
 640     qemu_register_machine(&pc_machine_v1_3);
 641     qemu_register_machine(&pc_machine_v1_2);
 642     qemu_register_machine(&pc_machine_v1_1);
 643     qemu_register_machine(&pc_machine_v1_0);
 644     qemu_register_machine(&pc_machine_v0_15);
 645     qemu_register_machine(&pc_machine_v0_14);
 646     qemu_register_machine(&pc_machine_v0_13);
 647     qemu_register_machine(&pc_machine_v0_12);
 648     qemu_register_machine(&pc_machine_v0_11);
 649     qemu_register_machine(&pc_machine_v0_10);
 650     qemu_register_machine(&isapc_machine);
 651 #ifdef CONFIG_XEN
 652     qemu_register_machine(&xenfv_machine);
 653 #endif
 654 }
 655
 656 machine_init(pc_machine_init);