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 "net.h"
  33 #include "boards.h"
  34 #include "ide.h"
  35 #include "kvm.h"
  36 #include "kvm/clock.h"
  37 #include "sysemu.h"
  38 #include "sysbus.h"
  39 #include "arch_init.h"
  40 #include "blockdev.h"
  41 #include "smbus.h"
  42 #include "xen.h"
  43 #include "memory.h"
  44 #include "exec-memory.h"
  45 #ifdef CONFIG_XEN
  46 #  include <xen/hvm/hvm_info_table.h>
  47 #endif
  48
  49 #define MAX_IDE_BUS 2
  50
  51 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  52 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  53 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  54
  55 static void kvm_piix3_setup_irq_routing(bool pci_enabled)
  56 {
  57 #ifdef CONFIG_KVM
  58     KVMState *s = kvm_state;
  59     int i;
  60
  61     if (kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) {
  62         for (i = 0; i < 8; ++i) {
  63             if (i == 2) {
  64                 continue;
  65             }
  66             kvm_irqchip_add_irq_route(s, i, KVM_IRQCHIP_PIC_MASTER, i);
  67         }
  68         for (i = 8; i < 16; ++i) {
  69             kvm_irqchip_add_irq_route(s, i, KVM_IRQCHIP_PIC_SLAVE, i - 8);
  70         }
  71         if (pci_enabled) {
  72             for (i = 0; i < 24; ++i) {
  73                 if (i == 0) {
  74                     kvm_irqchip_add_irq_route(s, i, KVM_IRQCHIP_IOAPIC, 2);
  75                 } else if (i != 2) {
  76                     kvm_irqchip_add_irq_route(s, i, KVM_IRQCHIP_IOAPIC, i);
  77                 }
  78             }
  79         }
  80     }
  81 #endif /* CONFIG_KVM */
  82 }
  83
  84 static void kvm_piix3_gsi_handler(void *opaque, int n, int level)
  85 {
  86     GSIState *s = opaque;
  87
  88     if (n < ISA_NUM_IRQS) {
  89         /* Kernel will forward to both PIC and IOAPIC */
  90         qemu_set_irq(s->i8259_irq[n], level);
  91     } else {
  92         qemu_set_irq(s->ioapic_irq[n], level);
  93     }
  94 }
  95
  96 static void ioapic_init(GSIState *gsi_state)
  97 {
  98     DeviceState *dev;
  99     SysBusDevice *d;
 100     unsigned int i;
 101
 102     if (kvm_irqchip_in_kernel()) {
 103         dev = qdev_create(NULL, "kvm-ioapic");
 104     } else {
 105         dev = qdev_create(NULL, "ioapic");
 106     }
 107     /* FIXME: this should be under the piix3.  */
 108     object_property_add_child(object_resolve_path("i440fx", NULL),
 109                               "ioapic", OBJECT(dev), NULL);
 110     qdev_init_nofail(dev);
 111     d = sysbus_from_qdev(dev);
 112     sysbus_mmio_map(d, 0, 0xfec00000);
 113
 114     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
 115         gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
 116     }
 117 }
 118
 119 /* PC hardware initialisation */
 120 static void pc_init1(MemoryRegion *system_memory,
 121                      MemoryRegion *system_io,
 122                      ram_addr_t ram_size,
 123                      const char *boot_device,
 124                      const char *kernel_filename,
 125                      const char *kernel_cmdline,
 126                      const char *initrd_filename,
 127                      const char *cpu_model,
 128                      int pci_enabled,
 129                      int kvmclock_enabled)
 130 {
 131     int i;
 132     ram_addr_t below_4g_mem_size, above_4g_mem_size;
 133     PCIBus *pci_bus;
 134     ISABus *isa_bus;
 135     PCII440FXState *i440fx_state;
 136     int piix3_devfn = -1;
 137     qemu_irq *cpu_irq;
 138     qemu_irq *gsi;
 139     qemu_irq *i8259;
 140     qemu_irq *smi_irq;
 141     GSIState *gsi_state;
 142     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 143     BusState *idebus[MAX_IDE_BUS];
 144     ISADevice *rtc_state;
 145     ISADevice *floppy;
 146     MemoryRegion *ram_memory;
 147     MemoryRegion *pci_memory;
 148     MemoryRegion *rom_memory;
 149
 150     pc_cpus_init(cpu_model);
 151
 152     if (kvmclock_enabled) {
 153         kvmclock_create();
 154     }
 155
 156     if (ram_size >= 0xe0000000 ) {
 157         above_4g_mem_size = ram_size - 0xe0000000;
 158         below_4g_mem_size = 0xe0000000;
 159     } else {
 160         above_4g_mem_size = 0;
 161         below_4g_mem_size = ram_size;
 162     }
 163
 164     if (pci_enabled) {
 165         pci_memory = g_new(MemoryRegion, 1);
 166         memory_region_init(pci_memory, "pci", INT64_MAX);
 167         rom_memory = pci_memory;
 168     } else {
 169         pci_memory = NULL;
 170         rom_memory = system_memory;
 171     }
 172
 173     /* allocate ram and load rom/bios */
 174     if (!xen_enabled()) {
 175         pc_memory_init(system_memory,
 176                        kernel_filename, kernel_cmdline, initrd_filename,
 177                        below_4g_mem_size, above_4g_mem_size,
 178                        pci_enabled ? rom_memory : system_memory, &ram_memory);
 179     }
 180
 181     gsi_state = g_malloc0(sizeof(*gsi_state));
 182     if (kvm_irqchip_in_kernel()) {
 183         kvm_piix3_setup_irq_routing(pci_enabled);
 184         gsi = qemu_allocate_irqs(kvm_piix3_gsi_handler, gsi_state,
 185                                  GSI_NUM_PINS);
 186     } else {
 187         gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
 188     }
 189
 190     if (pci_enabled) {
 191         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
 192                               system_memory, system_io, ram_size,
 193                               below_4g_mem_size,
 194                               0x100000000ULL - below_4g_mem_size,
 195                               0x100000000ULL + above_4g_mem_size,
 196                               (sizeof(target_phys_addr_t) == 4
 197                                ? 0
 198                                : ((uint64_t)1 << 62)),
 199                               pci_memory, ram_memory);
 200     } else {
 201         pci_bus = NULL;
 202         i440fx_state = NULL;
 203         isa_bus = isa_bus_new(NULL, system_io);
 204         no_hpet = 1;
 205     }
 206     isa_bus_irqs(isa_bus, gsi);
 207
 208     if (kvm_irqchip_in_kernel()) {
 209         i8259 = kvm_i8259_init(isa_bus);
 210     } else if (xen_enabled()) {
 211         i8259 = xen_interrupt_controller_init();
 212     } else {
 213         cpu_irq = pc_allocate_cpu_irq();
 214         i8259 = i8259_init(isa_bus, cpu_irq[0]);
 215     }
 216
 217     for (i = 0; i < ISA_NUM_IRQS; i++) {
 218         gsi_state->i8259_irq[i] = i8259[i];
 219     }
 220     if (pci_enabled) {
 221         ioapic_init(gsi_state);
 222     }
 223
 224     pc_register_ferr_irq(gsi[13]);
 225
 226     pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
 227     if (xen_enabled()) {
 228         pci_create_simple(pci_bus, -1, "xen-platform");
 229     }
 230
 231     /* init basic PC hardware */
 232     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled());
 233
 234     for(i = 0; i < nb_nics; i++) {
 235         NICInfo *nd = &nd_table[i];
 236
 237         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 238             pc_init_ne2k_isa(isa_bus, nd);
 239         else
 240             pci_nic_init_nofail(nd, "e1000", NULL);
 241     }
 242
 243     ide_drive_get(hd, MAX_IDE_BUS);
 244     if (pci_enabled) {
 245         PCIDevice *dev;
 246         if (xen_enabled()) {
 247             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 248         } else {
 249             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 250         }
 251         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 252         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 253     } else {
 254         for(i = 0; i < MAX_IDE_BUS; i++) {
 255             ISADevice *dev;
 256             dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
 257                                ide_irq[i],
 258                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 259             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 260         }
 261     }
 262
 263     audio_init(isa_bus, pci_enabled ? pci_bus : NULL);
 264
 265     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 266                  floppy, idebus[0], idebus[1], rtc_state);
 267
 268     if (pci_enabled && usb_enabled) {
 269         pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
 270     }
 271
 272     if (pci_enabled && acpi_enabled) {
 273         i2c_bus *smbus;
 274
 275         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 276         /* TODO: Populate SPD eeprom data.  */
 277         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 278                               gsi[9], *smi_irq,
 279                               kvm_enabled());
 280         smbus_eeprom_init(smbus, 8, NULL, 0);
 281     }
 282
 283     if (pci_enabled) {
 284         pc_pci_device_init(pci_bus);
 285     }
 286 }
 287
 288 static void pc_init_pci(ram_addr_t ram_size,
 289                         const char *boot_device,
 290                         const char *kernel_filename,
 291                         const char *kernel_cmdline,
 292                         const char *initrd_filename,
 293                         const char *cpu_model)
 294 {
 295     pc_init1(get_system_memory(),
 296              get_system_io(),
 297              ram_size, boot_device,
 298              kernel_filename, kernel_cmdline,
 299              initrd_filename, cpu_model, 1, 1);
 300 }
 301
 302 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 303                                     const char *boot_device,
 304                                     const char *kernel_filename,
 305                                     const char *kernel_cmdline,
 306                                     const char *initrd_filename,
 307                                     const char *cpu_model)
 308 {
 309     pc_init1(get_system_memory(),
 310              get_system_io(),
 311              ram_size, boot_device,
 312              kernel_filename, kernel_cmdline,
 313              initrd_filename, cpu_model, 1, 0);
 314 }
 315
 316 static void pc_init_isa(ram_addr_t ram_size,
 317                         const char *boot_device,
 318                         const char *kernel_filename,
 319                         const char *kernel_cmdline,
 320                         const char *initrd_filename,
 321                         const char *cpu_model)
 322 {
 323     if (cpu_model == NULL)
 324         cpu_model = "486";
 325     pc_init1(get_system_memory(),
 326              get_system_io(),
 327              ram_size, boot_device,
 328              kernel_filename, kernel_cmdline,
 329              initrd_filename, cpu_model, 0, 1);
 330 }
 331
 332 #ifdef CONFIG_XEN
 333 static void pc_xen_hvm_init(ram_addr_t ram_size,
 334                             const char *boot_device,
 335                             const char *kernel_filename,
 336                             const char *kernel_cmdline,
 337                             const char *initrd_filename,
 338                             const char *cpu_model)
 339 {
 340     if (xen_hvm_init() != 0) {
 341         hw_error("xen hardware virtual machine initialisation failed");
 342     }
 343     pc_init_pci_no_kvmclock(ram_size, boot_device,
 344                             kernel_filename, kernel_cmdline,
 345                             initrd_filename, cpu_model);
 346     xen_vcpu_init();
 347 }
 348 #endif
 349
 350 static QEMUMachine pc_machine_v1_1 = {
 351     .name = "pc-1.1",
 352     .alias = "pc",
 353     .desc = "Standard PC",
 354     .init = pc_init_pci,
 355     .max_cpus = 255,
 356     .is_default = 1,
 357 };
 358
 359 #define PC_COMPAT_1_0 \
 360         {\
 361             .driver   = "pc-sysfw",\
 362             .property = "rom_only",\
 363             .value    = stringify(1),\
 364         }, {\
 365             .driver   = "isa-fdc",\
 366             .property = "check_media_rate",\
 367             .value    = "off",\
 368         }, {\
 369             .driver   = "virtio-balloon-pci",\
 370             .property = "class",\
 371             .value    = stringify(PCI_CLASS_MEMORY_RAM),\
 372         },{\
 373             .driver   = "apic",\
 374             .property = "vapic",\
 375             .value    = "off",\
 376         },{\
 377             .driver   = "USB",\
 378             .property = "full-path",\
 379             .value    = "no",\
 380         }
 381
 382 static QEMUMachine pc_machine_v1_0 = {
 383     .name = "pc-1.0",
 384     .desc = "Standard PC",
 385     .init = pc_init_pci,
 386     .max_cpus = 255,
 387     .compat_props = (GlobalProperty[]) {
 388         PC_COMPAT_1_0,
 389         { /* end of list */ }
 390     },
 391 };
 392
 393 #define PC_COMPAT_0_15 \
 394         PC_COMPAT_1_0
 395
 396 static QEMUMachine pc_machine_v0_15 = {
 397     .name = "pc-0.15",
 398     .desc = "Standard PC",
 399     .init = pc_init_pci,
 400     .max_cpus = 255,
 401     .compat_props = (GlobalProperty[]) {
 402         PC_COMPAT_0_15,
 403         { /* end of list */ }
 404     },
 405 };
 406
 407 #define PC_COMPAT_0_14 \
 408         PC_COMPAT_0_15,\
 409         {\
 410             .driver   = "virtio-blk-pci",\
 411             .property = "event_idx",\
 412             .value    = "off",\
 413         },{\
 414             .driver   = "virtio-serial-pci",\
 415             .property = "event_idx",\
 416             .value    = "off",\
 417         },{\
 418             .driver   = "virtio-net-pci",\
 419             .property = "event_idx",\
 420             .value    = "off",\
 421         },{\
 422             .driver   = "virtio-balloon-pci",\
 423             .property = "event_idx",\
 424             .value    = "off",\
 425         }
 426
 427 static QEMUMachine pc_machine_v0_14 = {
 428     .name = "pc-0.14",
 429     .desc = "Standard PC",
 430     .init = pc_init_pci,
 431     .max_cpus = 255,
 432     .compat_props = (GlobalProperty[]) {
 433         PC_COMPAT_0_14,
 434         {
 435             .driver   = "qxl",
 436             .property = "revision",
 437             .value    = stringify(2),
 438         },{
 439             .driver   = "qxl-vga",
 440             .property = "revision",
 441             .value    = stringify(2),
 442         },
 443         { /* end of list */ }
 444     },
 445 };
 446
 447 #define PC_COMPAT_0_13 \
 448         PC_COMPAT_0_14,\
 449         {\
 450             .driver   = "PCI",\
 451             .property = "command_serr_enable",\
 452             .value    = "off",\
 453         },{\
 454             .driver   = "AC97",\
 455             .property = "use_broken_id",\
 456             .value    = stringify(1),\
 457         }
 458
 459 static QEMUMachine pc_machine_v0_13 = {
 460     .name = "pc-0.13",
 461     .desc = "Standard PC",
 462     .init = pc_init_pci_no_kvmclock,
 463     .max_cpus = 255,
 464     .compat_props = (GlobalProperty[]) {
 465         PC_COMPAT_0_13,
 466         {
 467             .driver   = "virtio-9p-pci",
 468             .property = "vectors",
 469             .value    = stringify(0),
 470         },{
 471             .driver   = "VGA",
 472             .property = "rombar",
 473             .value    = stringify(0),
 474         },{
 475             .driver   = "vmware-svga",
 476             .property = "rombar",
 477             .value    = stringify(0),
 478         },
 479         { /* end of list */ }
 480     },
 481 };
 482
 483 #define PC_COMPAT_0_12 \
 484         PC_COMPAT_0_13,\
 485         {\
 486             .driver   = "virtio-serial-pci",\
 487             .property = "max_ports",\
 488             .value    = stringify(1),\
 489         },{\
 490             .driver   = "virtio-serial-pci",\
 491             .property = "vectors",\
 492             .value    = stringify(0),\
 493         }
 494
 495 static QEMUMachine pc_machine_v0_12 = {
 496     .name = "pc-0.12",
 497     .desc = "Standard PC",
 498     .init = pc_init_pci_no_kvmclock,
 499     .max_cpus = 255,
 500     .compat_props = (GlobalProperty[]) {
 501         PC_COMPAT_0_12,
 502         {
 503             .driver   = "VGA",
 504             .property = "rombar",
 505             .value    = stringify(0),
 506         },{
 507             .driver   = "vmware-svga",
 508             .property = "rombar",
 509             .value    = stringify(0),
 510         },
 511         { /* end of list */ }
 512     }
 513 };
 514
 515 #define PC_COMPAT_0_11 \
 516         PC_COMPAT_0_12,\
 517         {\
 518             .driver   = "virtio-blk-pci",\
 519             .property = "vectors",\
 520             .value    = stringify(0),\
 521         },{\
 522             .driver   = "PCI",\
 523             .property = "rombar",\
 524             .value    = stringify(0),\
 525         }
 526
 527 static QEMUMachine pc_machine_v0_11 = {
 528     .name = "pc-0.11",
 529     .desc = "Standard PC, qemu 0.11",
 530     .init = pc_init_pci_no_kvmclock,
 531     .max_cpus = 255,
 532     .compat_props = (GlobalProperty[]) {
 533         PC_COMPAT_0_11,
 534         {
 535             .driver   = "ide-drive",
 536             .property = "ver",
 537             .value    = "0.11",
 538         },{
 539             .driver   = "scsi-disk",
 540             .property = "ver",
 541             .value    = "0.11",
 542         },
 543         { /* end of list */ }
 544     }
 545 };
 546
 547 static QEMUMachine pc_machine_v0_10 = {
 548     .name = "pc-0.10",
 549     .desc = "Standard PC, qemu 0.10",
 550     .init = pc_init_pci_no_kvmclock,
 551     .max_cpus = 255,
 552     .compat_props = (GlobalProperty[]) {
 553         PC_COMPAT_0_11,
 554         {
 555             .driver   = "virtio-blk-pci",
 556             .property = "class",
 557             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 558         },{
 559             .driver   = "virtio-serial-pci",
 560             .property = "class",
 561             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 562         },{
 563             .driver   = "virtio-net-pci",
 564             .property = "vectors",
 565             .value    = stringify(0),
 566         },{
 567             .driver   = "ide-drive",
 568             .property = "ver",
 569             .value    = "0.10",
 570         },{
 571             .driver   = "scsi-disk",
 572             .property = "ver",
 573             .value    = "0.10",
 574         },
 575         { /* end of list */ }
 576     },
 577 };
 578
 579 static QEMUMachine isapc_machine = {
 580     .name = "isapc",
 581     .desc = "ISA-only PC",
 582     .init = pc_init_isa,
 583     .max_cpus = 1,
 584     .compat_props = (GlobalProperty[]) {
 585         {
 586             .driver   = "pc-sysfw",
 587             .property = "rom_only",
 588             .value    = stringify(1),
 589         },
 590         { /* end of list */ }
 591     },
 592 };
 593
 594 #ifdef CONFIG_XEN
 595 static QEMUMachine xenfv_machine = {
 596     .name = "xenfv",
 597     .desc = "Xen Fully-virtualized PC",
 598     .init = pc_xen_hvm_init,
 599     .max_cpus = HVM_MAX_VCPUS,
 600     .default_machine_opts = "accel=xen",
 601 };
 602 #endif
 603
 604 static void pc_machine_init(void)
 605 {
 606     qemu_register_machine(&pc_machine_v1_1);
 607     qemu_register_machine(&pc_machine_v1_0);
 608     qemu_register_machine(&pc_machine_v0_15);
 609     qemu_register_machine(&pc_machine_v0_14);
 610     qemu_register_machine(&pc_machine_v0_13);
 611     qemu_register_machine(&pc_machine_v0_12);
 612     qemu_register_machine(&pc_machine_v0_11);
 613     qemu_register_machine(&pc_machine_v0_10);
 614     qemu_register_machine(&isapc_machine);
 615 #ifdef CONFIG_XEN
 616     qemu_register_machine(&xenfv_machine);
 617 #endif
 618 }
 619
 620 machine_init(pc_machine_init);