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