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 "usb-uhci.h"
  32 #include "usb-ohci.h"
  33 #include "net.h"
  34 #include "boards.h"
  35 #include "ide.h"
  36 #include "kvm.h"
  37 #include "kvmclock.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 #ifdef CONFIG_XEN
  47 #  include <xen/hvm/hvm_info_table.h>
  48 #endif
  49
  50 #define MAX_IDE_BUS 2
  51
  52 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  53 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  54 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  55
  56 static void ioapic_init(GSIState *gsi_state)
  57 {
  58     DeviceState *dev;
  59     SysBusDevice *d;
  60     unsigned int i;
  61
  62     dev = qdev_create(NULL, "ioapic");
  63     qdev_init_nofail(dev);
  64     d = sysbus_from_qdev(dev);
  65     sysbus_mmio_map(d, 0, 0xfec00000);
  66
  67     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
  68         gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
  69     }
  70 }
  71
  72 /* PC hardware initialisation */
  73 static void pc_init1(MemoryRegion *system_memory,
  74                      MemoryRegion *system_io,
  75                      ram_addr_t ram_size,
  76                      const char *boot_device,
  77                      const char *kernel_filename,
  78                      const char *kernel_cmdline,
  79                      const char *initrd_filename,
  80                      const char *cpu_model,
  81                      int pci_enabled,
  82                      int kvmclock_enabled)
  83 {
  84     int i;
  85     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  86     PCIBus *pci_bus;
  87     ISABus *isa_bus;
  88     PCII440FXState *i440fx_state;
  89     int piix3_devfn = -1;
  90     qemu_irq *cpu_irq;
  91     qemu_irq *gsi;
  92     qemu_irq *i8259;
  93     qemu_irq *cmos_s3;
  94     qemu_irq *smi_irq;
  95     GSIState *gsi_state;
  96     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  97     BusState *idebus[MAX_IDE_BUS];
  98     ISADevice *rtc_state;
  99     ISADevice *floppy;
 100     MemoryRegion *ram_memory;
 101     MemoryRegion *pci_memory;
 102     MemoryRegion *rom_memory;
 103     DeviceState *dev;
 104
 105     pc_cpus_init(cpu_model);
 106
 107     if (kvmclock_enabled) {
 108         kvmclock_create();
 109     }
 110
 111     if (ram_size >= 0xe0000000 ) {
 112         above_4g_mem_size = ram_size - 0xe0000000;
 113         below_4g_mem_size = 0xe0000000;
 114     } else {
 115         above_4g_mem_size = 0;
 116         below_4g_mem_size = ram_size;
 117     }
 118
 119     if (pci_enabled) {
 120         pci_memory = g_new(MemoryRegion, 1);
 121         memory_region_init(pci_memory, "pci", INT64_MAX);
 122         rom_memory = pci_memory;
 123     } else {
 124         pci_memory = NULL;
 125         rom_memory = system_memory;
 126     }
 127
 128     /* allocate ram and load rom/bios */
 129     if (!xen_enabled()) {
 130         pc_memory_init(system_memory,
 131                        kernel_filename, kernel_cmdline, initrd_filename,
 132                        below_4g_mem_size, above_4g_mem_size,
 133                        pci_enabled ? rom_memory : system_memory, &ram_memory);
 134     }
 135
 136     gsi_state = g_malloc0(sizeof(*gsi_state));
 137     gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
 138
 139     if (pci_enabled) {
 140         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
 141                               system_memory, system_io, ram_size,
 142                               below_4g_mem_size,
 143                               0x100000000ULL - below_4g_mem_size,
 144                               0x100000000ULL + above_4g_mem_size,
 145                               (sizeof(target_phys_addr_t) == 4
 146                                ? 0
 147                                : ((uint64_t)1 << 62)),
 148                               pci_memory, ram_memory);
 149     } else {
 150         pci_bus = NULL;
 151         i440fx_state = NULL;
 152         isa_bus = isa_bus_new(NULL, system_io);
 153         no_hpet = 1;
 154     }
 155     isa_bus_irqs(isa_bus, gsi);
 156
 157     if (!xen_enabled()) {
 158         cpu_irq = pc_allocate_cpu_irq();
 159         i8259 = i8259_init(isa_bus, cpu_irq[0]);
 160     } else {
 161         i8259 = xen_interrupt_controller_init();
 162     }
 163
 164     for (i = 0; i < ISA_NUM_IRQS; i++) {
 165         gsi_state->i8259_irq[i] = i8259[i];
 166     }
 167     if (pci_enabled) {
 168         ioapic_init(gsi_state);
 169     }
 170
 171     pc_register_ferr_irq(gsi[13]);
 172
 173     dev = pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
 174     if (dev) {
 175         qdev_property_add_child(qdev_get_root(), "vga", dev, NULL);
 176     }
 177
 178     if (xen_enabled()) {
 179         pci_create_simple(pci_bus, -1, "xen-platform");
 180     }
 181
 182     /* init basic PC hardware */
 183     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled());
 184
 185     for(i = 0; i < nb_nics; i++) {
 186         NICInfo *nd = &nd_table[i];
 187
 188         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 189             pc_init_ne2k_isa(isa_bus, nd);
 190         else
 191             pci_nic_init_nofail(nd, "e1000", NULL);
 192     }
 193
 194     ide_drive_get(hd, MAX_IDE_BUS);
 195     if (pci_enabled) {
 196         PCIDevice *dev;
 197         if (xen_enabled()) {
 198             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 199         } else {
 200             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 201         }
 202         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 203         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 204     } else {
 205         for(i = 0; i < MAX_IDE_BUS; i++) {
 206             ISADevice *dev;
 207             dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
 208                                ide_irq[i],
 209                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 210             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 211         }
 212     }
 213
 214     /* FIXME there's some major spaghetti here.  Somehow we create the devices
 215      * on the PIIX before we actually create it.  We create the PIIX3 deep in
 216      * the recess of the i440fx creation too and then lose the DeviceState.
 217      *
 218      * For now, let's "fix" this by making judicious use of paths.  This is not
 219      * generally the right way to do this.
 220      */
 221
 222     qdev_property_add_child(qdev_resolve_path("/i440fx/piix3", NULL),
 223                             "rtc", (DeviceState *)rtc_state, NULL);
 224
 225     audio_init(isa_bus, pci_enabled ? pci_bus : NULL);
 226
 227     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 228                  floppy, idebus[0], idebus[1], rtc_state);
 229
 230     if (pci_enabled && usb_enabled) {
 231         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 232     }
 233
 234     if (pci_enabled && acpi_enabled) {
 235         i2c_bus *smbus;
 236
 237         if (!xen_enabled()) {
 238             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 239         } else {
 240             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 241         }
 242         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 243         /* TODO: Populate SPD eeprom data.  */
 244         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 245                               gsi[9], *cmos_s3, *smi_irq,
 246                               kvm_enabled());
 247         smbus_eeprom_init(smbus, 8, NULL, 0);
 248     }
 249
 250     if (pci_enabled) {
 251         pc_pci_device_init(pci_bus);
 252     }
 253 }
 254
 255 static void pc_init_pci(ram_addr_t ram_size,
 256                         const char *boot_device,
 257                         const char *kernel_filename,
 258                         const char *kernel_cmdline,
 259                         const char *initrd_filename,
 260                         const char *cpu_model)
 261 {
 262     pc_init1(get_system_memory(),
 263              get_system_io(),
 264              ram_size, boot_device,
 265              kernel_filename, kernel_cmdline,
 266              initrd_filename, cpu_model, 1, 1);
 267 }
 268
 269 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 270                                     const char *boot_device,
 271                                     const char *kernel_filename,
 272                                     const char *kernel_cmdline,
 273                                     const char *initrd_filename,
 274                                     const char *cpu_model)
 275 {
 276     pc_init1(get_system_memory(),
 277              get_system_io(),
 278              ram_size, boot_device,
 279              kernel_filename, kernel_cmdline,
 280              initrd_filename, cpu_model, 1, 0);
 281 }
 282
 283 static void pc_init_isa(ram_addr_t ram_size,
 284                         const char *boot_device,
 285                         const char *kernel_filename,
 286                         const char *kernel_cmdline,
 287                         const char *initrd_filename,
 288                         const char *cpu_model)
 289 {
 290     if (cpu_model == NULL)
 291         cpu_model = "486";
 292     pc_init1(get_system_memory(),
 293              get_system_io(),
 294              ram_size, boot_device,
 295              kernel_filename, kernel_cmdline,
 296              initrd_filename, cpu_model, 0, 1);
 297 }
 298
 299 #ifdef CONFIG_XEN
 300 static void pc_xen_hvm_init(ram_addr_t ram_size,
 301                             const char *boot_device,
 302                             const char *kernel_filename,
 303                             const char *kernel_cmdline,
 304                             const char *initrd_filename,
 305                             const char *cpu_model)
 306 {
 307     if (xen_hvm_init() != 0) {
 308         hw_error("xen hardware virtual machine initialisation failed");
 309     }
 310     pc_init_pci_no_kvmclock(ram_size, boot_device,
 311                             kernel_filename, kernel_cmdline,
 312                             initrd_filename, cpu_model);
 313     xen_vcpu_init();
 314 }
 315 #endif
 316
 317 static QEMUMachine pc_machine_v1_0 = {
 318     .name = "pc-1.0",
 319     .alias = "pc",
 320     .desc = "Standard PC",
 321     .init = pc_init_pci,
 322     .max_cpus = 255,
 323     .is_default = 1,
 324 };
 325
 326 static QEMUMachine pc_machine_v0_15 = {
 327     .name = "pc-0.15",
 328     .desc = "Standard PC",
 329     .init = pc_init_pci,
 330     .max_cpus = 255,
 331     .is_default = 1,
 332 };
 333
 334 static QEMUMachine pc_machine_v0_14 = {
 335     .name = "pc-0.14",
 336     .desc = "Standard PC",
 337     .init = pc_init_pci,
 338     .max_cpus = 255,
 339     .compat_props = (GlobalProperty[]) {
 340         {
 341             .driver   = "qxl",
 342             .property = "revision",
 343             .value    = stringify(2),
 344         },{
 345             .driver   = "qxl-vga",
 346             .property = "revision",
 347             .value    = stringify(2),
 348         },{
 349             .driver   = "virtio-blk-pci",
 350             .property = "event_idx",
 351             .value    = "off",
 352         },{
 353             .driver   = "virtio-serial-pci",
 354             .property = "event_idx",
 355             .value    = "off",
 356         },{
 357             .driver   = "virtio-net-pci",
 358             .property = "event_idx",
 359             .value    = "off",
 360         },{
 361             .driver   = "virtio-balloon-pci",
 362             .property = "event_idx",
 363             .value    = "off",
 364         },
 365         { /* end of list */ }
 366     },
 367 };
 368
 369 static QEMUMachine pc_machine_v0_13 = {
 370     .name = "pc-0.13",
 371     .desc = "Standard PC",
 372     .init = pc_init_pci_no_kvmclock,
 373     .max_cpus = 255,
 374     .compat_props = (GlobalProperty[]) {
 375         {
 376             .driver   = "virtio-9p-pci",
 377             .property = "vectors",
 378             .value    = stringify(0),
 379         },{
 380             .driver   = "VGA",
 381             .property = "rombar",
 382             .value    = stringify(0),
 383         },{
 384             .driver   = "vmware-svga",
 385             .property = "rombar",
 386             .value    = stringify(0),
 387         },{
 388             .driver   = "PCI",
 389             .property = "command_serr_enable",
 390             .value    = "off",
 391         },{
 392             .driver   = "virtio-blk-pci",
 393             .property = "event_idx",
 394             .value    = "off",
 395         },{
 396             .driver   = "virtio-serial-pci",
 397             .property = "event_idx",
 398             .value    = "off",
 399         },{
 400             .driver   = "virtio-net-pci",
 401             .property = "event_idx",
 402             .value    = "off",
 403         },{
 404             .driver   = "virtio-balloon-pci",
 405             .property = "event_idx",
 406             .value    = "off",
 407         },{
 408             .driver   = "AC97",
 409             .property = "use_broken_id",
 410             .value    = stringify(1),
 411         },
 412         { /* end of list */ }
 413     },
 414 };
 415
 416 static QEMUMachine pc_machine_v0_12 = {
 417     .name = "pc-0.12",
 418     .desc = "Standard PC",
 419     .init = pc_init_pci_no_kvmclock,
 420     .max_cpus = 255,
 421     .compat_props = (GlobalProperty[]) {
 422         {
 423             .driver   = "virtio-serial-pci",
 424             .property = "max_ports",
 425             .value    = stringify(1),
 426         },{
 427             .driver   = "virtio-serial-pci",
 428             .property = "vectors",
 429             .value    = stringify(0),
 430         },{
 431             .driver   = "VGA",
 432             .property = "rombar",
 433             .value    = stringify(0),
 434         },{
 435             .driver   = "vmware-svga",
 436             .property = "rombar",
 437             .value    = stringify(0),
 438         },{
 439             .driver   = "PCI",
 440             .property = "command_serr_enable",
 441             .value    = "off",
 442         },{
 443             .driver   = "virtio-blk-pci",
 444             .property = "event_idx",
 445             .value    = "off",
 446         },{
 447             .driver   = "virtio-serial-pci",
 448             .property = "event_idx",
 449             .value    = "off",
 450         },{
 451             .driver   = "virtio-net-pci",
 452             .property = "event_idx",
 453             .value    = "off",
 454         },{
 455             .driver   = "virtio-balloon-pci",
 456             .property = "event_idx",
 457             .value    = "off",
 458         },{
 459             .driver   = "AC97",
 460             .property = "use_broken_id",
 461             .value    = stringify(1),
 462         },
 463         { /* end of list */ }
 464     }
 465 };
 466
 467 static QEMUMachine pc_machine_v0_11 = {
 468     .name = "pc-0.11",
 469     .desc = "Standard PC, qemu 0.11",
 470     .init = pc_init_pci_no_kvmclock,
 471     .max_cpus = 255,
 472     .compat_props = (GlobalProperty[]) {
 473         {
 474             .driver   = "virtio-blk-pci",
 475             .property = "vectors",
 476             .value    = stringify(0),
 477         },{
 478             .driver   = "virtio-serial-pci",
 479             .property = "max_ports",
 480             .value    = stringify(1),
 481         },{
 482             .driver   = "virtio-serial-pci",
 483             .property = "vectors",
 484             .value    = stringify(0),
 485         },{
 486             .driver   = "ide-drive",
 487             .property = "ver",
 488             .value    = "0.11",
 489         },{
 490             .driver   = "scsi-disk",
 491             .property = "ver",
 492             .value    = "0.11",
 493         },{
 494             .driver   = "PCI",
 495             .property = "rombar",
 496             .value    = stringify(0),
 497         },{
 498             .driver   = "PCI",
 499             .property = "command_serr_enable",
 500             .value    = "off",
 501         },{
 502             .driver   = "virtio-blk-pci",
 503             .property = "event_idx",
 504             .value    = "off",
 505         },{
 506             .driver   = "virtio-serial-pci",
 507             .property = "event_idx",
 508             .value    = "off",
 509         },{
 510             .driver   = "virtio-net-pci",
 511             .property = "event_idx",
 512             .value    = "off",
 513         },{
 514             .driver   = "virtio-balloon-pci",
 515             .property = "event_idx",
 516             .value    = "off",
 517         },{
 518             .driver   = "AC97",
 519             .property = "use_broken_id",
 520             .value    = stringify(1),
 521         },
 522         { /* end of list */ }
 523     }
 524 };
 525
 526 static QEMUMachine pc_machine_v0_10 = {
 527     .name = "pc-0.10",
 528     .desc = "Standard PC, qemu 0.10",
 529     .init = pc_init_pci_no_kvmclock,
 530     .max_cpus = 255,
 531     .compat_props = (GlobalProperty[]) {
 532         {
 533             .driver   = "virtio-blk-pci",
 534             .property = "class",
 535             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 536         },{
 537             .driver   = "virtio-serial-pci",
 538             .property = "class",
 539             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 540         },{
 541             .driver   = "virtio-serial-pci",
 542             .property = "max_ports",
 543             .value    = stringify(1),
 544         },{
 545             .driver   = "virtio-serial-pci",
 546             .property = "vectors",
 547             .value    = stringify(0),
 548         },{
 549             .driver   = "virtio-net-pci",
 550             .property = "vectors",
 551             .value    = stringify(0),
 552         },{
 553             .driver   = "virtio-blk-pci",
 554             .property = "vectors",
 555             .value    = stringify(0),
 556         },{
 557             .driver   = "ide-drive",
 558             .property = "ver",
 559             .value    = "0.10",
 560         },{
 561             .driver   = "scsi-disk",
 562             .property = "ver",
 563             .value    = "0.10",
 564         },{
 565             .driver   = "PCI",
 566             .property = "rombar",
 567             .value    = stringify(0),
 568         },{
 569             .driver   = "PCI",
 570             .property = "command_serr_enable",
 571             .value    = "off",
 572         },{
 573             .driver   = "virtio-blk-pci",
 574             .property = "event_idx",
 575             .value    = "off",
 576         },{
 577             .driver   = "virtio-serial-pci",
 578             .property = "event_idx",
 579             .value    = "off",
 580         },{
 581             .driver   = "virtio-net-pci",
 582             .property = "event_idx",
 583             .value    = "off",
 584         },{
 585             .driver   = "virtio-balloon-pci",
 586             .property = "event_idx",
 587             .value    = "off",
 588         },{
 589             .driver   = "AC97",
 590             .property = "use_broken_id",
 591             .value    = stringify(1),
 592         },
 593         { /* end of list */ }
 594     },
 595 };
 596
 597 static QEMUMachine isapc_machine = {
 598     .name = "isapc",
 599     .desc = "ISA-only PC",
 600     .init = pc_init_isa,
 601     .max_cpus = 1,
 602 };
 603
 604 #ifdef CONFIG_XEN
 605 static QEMUMachine xenfv_machine = {
 606     .name = "xenfv",
 607     .desc = "Xen Fully-virtualized PC",
 608     .init = pc_xen_hvm_init,
 609     .max_cpus = HVM_MAX_VCPUS,
 610     .default_machine_opts = "accel=xen",
 611 };
 612 #endif
 613
 614 static void pc_machine_init(void)
 615 {
 616     qemu_register_machine(&pc_machine_v1_0);
 617     qemu_register_machine(&pc_machine_v0_15);
 618     qemu_register_machine(&pc_machine_v0_14);
 619     qemu_register_machine(&pc_machine_v0_13);
 620     qemu_register_machine(&pc_machine_v0_12);
 621     qemu_register_machine(&pc_machine_v0_11);
 622     qemu_register_machine(&pc_machine_v0_10);
 623     qemu_register_machine(&isapc_machine);
 624 #ifdef CONFIG_XEN
 625     qemu_register_machine(&xenfv_machine);
 626 #endif
 627 }
 628
 629 machine_init(pc_machine_init);