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(IsaIrqState *isa_irq_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         isa_irq_state->ioapic[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     PCII440FXState *i440fx_state;
  88     int piix3_devfn = -1;
  89     qemu_irq *cpu_irq;
  90     qemu_irq *isa_irq;
  91     qemu_irq *i8259;
  92     qemu_irq *cmos_s3;
  93     qemu_irq *smi_irq;
  94     IsaIrqState *isa_irq_state;
  95     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  96     BusState *idebus[MAX_IDE_BUS];
  97     ISADevice *rtc_state;
  98     MemoryRegion *ram_memory;
  99     MemoryRegion *pci_memory;
 100     MemoryRegion *rom_memory;
 101
 102     pc_cpus_init(cpu_model);
 103
 104     if (kvmclock_enabled) {
 105         kvmclock_create();
 106     }
 107
 108     if (ram_size >= 0xe0000000 ) {
 109         above_4g_mem_size = ram_size - 0xe0000000;
 110         below_4g_mem_size = 0xe0000000;
 111     } else {
 112         above_4g_mem_size = 0;
 113         below_4g_mem_size = ram_size;
 114     }
 115
 116     if (pci_enabled) {
 117         pci_memory = g_new(MemoryRegion, 1);
 118         memory_region_init(pci_memory, "pci", INT64_MAX);
 119         rom_memory = pci_memory;
 120     } else {
 121         pci_memory = NULL;
 122         rom_memory = system_memory;
 123     }
 124
 125     /* allocate ram and load rom/bios */
 126     if (!xen_enabled()) {
 127         pc_memory_init(system_memory,
 128                        kernel_filename, kernel_cmdline, initrd_filename,
 129                        below_4g_mem_size, above_4g_mem_size,
 130                        pci_enabled ? rom_memory : system_memory, &ram_memory);
 131     }
 132
 133     isa_irq_state = g_malloc0(sizeof(*isa_irq_state));
 134     isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 135
 136     if (pci_enabled) {
 137         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq,
 138                               system_memory, system_io, ram_size,
 139                               below_4g_mem_size,
 140                               0x100000000ULL - below_4g_mem_size,
 141                               0x100000000ULL + above_4g_mem_size,
 142                               (sizeof(target_phys_addr_t) == 4
 143                                ? 0
 144                                : ((uint64_t)1 << 62)),
 145                               pci_memory, ram_memory);
 146     } else {
 147         pci_bus = NULL;
 148         i440fx_state = NULL;
 149         isa_bus_new(NULL, system_io);
 150         no_hpet = 1;
 151     }
 152     isa_bus_irqs(isa_irq);
 153
 154     if (!xen_enabled()) {
 155         cpu_irq = pc_allocate_cpu_irq();
 156         i8259 = i8259_init(cpu_irq[0]);
 157     } else {
 158         i8259 = xen_interrupt_controller_init();
 159     }
 160
 161     isa_irq_state->i8259 = i8259;
 162     if (pci_enabled) {
 163         ioapic_init(isa_irq_state);
 164     }
 165
 166     pc_register_ferr_irq(isa_get_irq(13));
 167
 168     pc_vga_init(pci_enabled? pci_bus: NULL);
 169
 170     if (xen_enabled()) {
 171         pci_create_simple(pci_bus, -1, "xen-platform");
 172     }
 173
 174     /* init basic PC hardware */
 175     pc_basic_device_init(isa_irq, &rtc_state, xen_enabled());
 176
 177     for(i = 0; i < nb_nics; i++) {
 178         NICInfo *nd = &nd_table[i];
 179
 180         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 181             pc_init_ne2k_isa(nd);
 182         else
 183             pci_nic_init_nofail(nd, "e1000", NULL);
 184     }
 185
 186     ide_drive_get(hd, MAX_IDE_BUS);
 187     if (pci_enabled) {
 188         PCIDevice *dev;
 189         if (xen_enabled()) {
 190             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 191         } else {
 192             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 193         }
 194         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 195         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 196     } else {
 197         for(i = 0; i < MAX_IDE_BUS; i++) {
 198             ISADevice *dev;
 199             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 200                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 201             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 202         }
 203     }
 204
 205     audio_init(isa_irq, pci_enabled ? pci_bus : NULL);
 206
 207     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 208                  idebus[0], idebus[1], rtc_state);
 209
 210     if (pci_enabled && usb_enabled) {
 211         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 212     }
 213
 214     if (pci_enabled && acpi_enabled) {
 215         i2c_bus *smbus;
 216
 217         if (!xen_enabled()) {
 218             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 219         } else {
 220             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 221         }
 222         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 223         /* TODO: Populate SPD eeprom data.  */
 224         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 225                               isa_get_irq(9), *cmos_s3, *smi_irq,
 226                               kvm_enabled());
 227         smbus_eeprom_init(smbus, 8, NULL, 0);
 228     }
 229
 230     if (pci_enabled) {
 231         pc_pci_device_init(pci_bus);
 232     }
 233 }
 234
 235 static void pc_init_pci(ram_addr_t ram_size,
 236                         const char *boot_device,
 237                         const char *kernel_filename,
 238                         const char *kernel_cmdline,
 239                         const char *initrd_filename,
 240                         const char *cpu_model)
 241 {
 242     pc_init1(get_system_memory(),
 243              get_system_io(),
 244              ram_size, boot_device,
 245              kernel_filename, kernel_cmdline,
 246              initrd_filename, cpu_model, 1, 1);
 247 }
 248
 249 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 250                                     const char *boot_device,
 251                                     const char *kernel_filename,
 252                                     const char *kernel_cmdline,
 253                                     const char *initrd_filename,
 254                                     const char *cpu_model)
 255 {
 256     pc_init1(get_system_memory(),
 257              get_system_io(),
 258              ram_size, boot_device,
 259              kernel_filename, kernel_cmdline,
 260              initrd_filename, cpu_model, 1, 0);
 261 }
 262
 263 static void pc_init_isa(ram_addr_t ram_size,
 264                         const char *boot_device,
 265                         const char *kernel_filename,
 266                         const char *kernel_cmdline,
 267                         const char *initrd_filename,
 268                         const char *cpu_model)
 269 {
 270     if (cpu_model == NULL)
 271         cpu_model = "486";
 272     pc_init1(get_system_memory(),
 273              get_system_io(),
 274              ram_size, boot_device,
 275              kernel_filename, kernel_cmdline,
 276              initrd_filename, cpu_model, 0, 1);
 277 }
 278
 279 #ifdef CONFIG_XEN
 280 static void pc_xen_hvm_init(ram_addr_t ram_size,
 281                             const char *boot_device,
 282                             const char *kernel_filename,
 283                             const char *kernel_cmdline,
 284                             const char *initrd_filename,
 285                             const char *cpu_model)
 286 {
 287     if (xen_hvm_init() != 0) {
 288         hw_error("xen hardware virtual machine initialisation failed");
 289     }
 290     pc_init_pci_no_kvmclock(ram_size, boot_device,
 291                             kernel_filename, kernel_cmdline,
 292                             initrd_filename, cpu_model);
 293     xen_vcpu_init();
 294 }
 295 #endif
 296
 297 static QEMUMachine pc_machine = {
 298     .name = "pc-0.14",
 299     .alias = "pc",
 300     .desc = "Standard PC",
 301     .init = pc_init_pci,
 302     .max_cpus = 255,
 303     .is_default = 1,
 304 };
 305
 306 static QEMUMachine pc_machine_v0_13 = {
 307     .name = "pc-0.13",
 308     .desc = "Standard PC",
 309     .init = pc_init_pci_no_kvmclock,
 310     .max_cpus = 255,
 311     .compat_props = (GlobalProperty[]) {
 312         {
 313             .driver   = "virtio-9p-pci",
 314             .property = "vectors",
 315             .value    = stringify(0),
 316         },{
 317             .driver   = "VGA",
 318             .property = "rombar",
 319             .value    = stringify(0),
 320         },{
 321             .driver   = "vmware-svga",
 322             .property = "rombar",
 323             .value    = stringify(0),
 324         },{
 325             .driver   = "PCI",
 326             .property = "command_serr_enable",
 327             .value    = "off",
 328         },{
 329             .driver   = "virtio-blk-pci",
 330             .property = "event_idx",
 331             .value    = "off",
 332         },{
 333             .driver   = "virtio-serial-pci",
 334             .property = "event_idx",
 335             .value    = "off",
 336         },{
 337             .driver   = "virtio-net-pci",
 338             .property = "event_idx",
 339             .value    = "off",
 340         },
 341         { /* end of list */ }
 342     },
 343 };
 344
 345 static QEMUMachine pc_machine_v0_12 = {
 346     .name = "pc-0.12",
 347     .desc = "Standard PC",
 348     .init = pc_init_pci_no_kvmclock,
 349     .max_cpus = 255,
 350     .compat_props = (GlobalProperty[]) {
 351         {
 352             .driver   = "virtio-serial-pci",
 353             .property = "max_ports",
 354             .value    = stringify(1),
 355         },{
 356             .driver   = "virtio-serial-pci",
 357             .property = "vectors",
 358             .value    = stringify(0),
 359         },{
 360             .driver   = "VGA",
 361             .property = "rombar",
 362             .value    = stringify(0),
 363         },{
 364             .driver   = "vmware-svga",
 365             .property = "rombar",
 366             .value    = stringify(0),
 367         },{
 368             .driver   = "PCI",
 369             .property = "command_serr_enable",
 370             .value    = "off",
 371         },{
 372             .driver   = "virtio-blk-pci",
 373             .property = "event_idx",
 374             .value    = "off",
 375         },{
 376             .driver   = "virtio-serial-pci",
 377             .property = "event_idx",
 378             .value    = "off",
 379         },{
 380             .driver   = "virtio-net-pci",
 381             .property = "event_idx",
 382             .value    = "off",
 383         },
 384         { /* end of list */ }
 385     }
 386 };
 387
 388 static QEMUMachine pc_machine_v0_11 = {
 389     .name = "pc-0.11",
 390     .desc = "Standard PC, qemu 0.11",
 391     .init = pc_init_pci_no_kvmclock,
 392     .max_cpus = 255,
 393     .compat_props = (GlobalProperty[]) {
 394         {
 395             .driver   = "virtio-blk-pci",
 396             .property = "vectors",
 397             .value    = stringify(0),
 398         },{
 399             .driver   = "virtio-serial-pci",
 400             .property = "max_ports",
 401             .value    = stringify(1),
 402         },{
 403             .driver   = "virtio-serial-pci",
 404             .property = "vectors",
 405             .value    = stringify(0),
 406         },{
 407             .driver   = "ide-drive",
 408             .property = "ver",
 409             .value    = "0.11",
 410         },{
 411             .driver   = "scsi-disk",
 412             .property = "ver",
 413             .value    = "0.11",
 414         },{
 415             .driver   = "PCI",
 416             .property = "rombar",
 417             .value    = stringify(0),
 418         },{
 419             .driver   = "PCI",
 420             .property = "command_serr_enable",
 421             .value    = "off",
 422         },{
 423             .driver   = "virtio-blk-pci",
 424             .property = "event_idx",
 425             .value    = "off",
 426         },{
 427             .driver   = "virtio-serial-pci",
 428             .property = "event_idx",
 429             .value    = "off",
 430         },{
 431             .driver   = "virtio-net-pci",
 432             .property = "event_idx",
 433             .value    = "off",
 434         },
 435         { /* end of list */ }
 436     }
 437 };
 438
 439 static QEMUMachine pc_machine_v0_10 = {
 440     .name = "pc-0.10",
 441     .desc = "Standard PC, qemu 0.10",
 442     .init = pc_init_pci_no_kvmclock,
 443     .max_cpus = 255,
 444     .compat_props = (GlobalProperty[]) {
 445         {
 446             .driver   = "virtio-blk-pci",
 447             .property = "class",
 448             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 449         },{
 450             .driver   = "virtio-serial-pci",
 451             .property = "class",
 452             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 453         },{
 454             .driver   = "virtio-serial-pci",
 455             .property = "max_ports",
 456             .value    = stringify(1),
 457         },{
 458             .driver   = "virtio-serial-pci",
 459             .property = "vectors",
 460             .value    = stringify(0),
 461         },{
 462             .driver   = "virtio-net-pci",
 463             .property = "vectors",
 464             .value    = stringify(0),
 465         },{
 466             .driver   = "virtio-blk-pci",
 467             .property = "vectors",
 468             .value    = stringify(0),
 469         },{
 470             .driver   = "ide-drive",
 471             .property = "ver",
 472             .value    = "0.10",
 473         },{
 474             .driver   = "scsi-disk",
 475             .property = "ver",
 476             .value    = "0.10",
 477         },{
 478             .driver   = "PCI",
 479             .property = "rombar",
 480             .value    = stringify(0),
 481         },{
 482             .driver   = "PCI",
 483             .property = "command_serr_enable",
 484             .value    = "off",
 485         },{
 486             .driver   = "virtio-blk-pci",
 487             .property = "event_idx",
 488             .value    = "off",
 489         },{
 490             .driver   = "virtio-serial-pci",
 491             .property = "event_idx",
 492             .value    = "off",
 493         },{
 494             .driver   = "virtio-net-pci",
 495             .property = "event_idx",
 496             .value    = "off",
 497         },
 498         { /* end of list */ }
 499     },
 500 };
 501
 502 static QEMUMachine isapc_machine = {
 503     .name = "isapc",
 504     .desc = "ISA-only PC",
 505     .init = pc_init_isa,
 506     .max_cpus = 1,
 507 };
 508
 509 #ifdef CONFIG_XEN
 510 static QEMUMachine xenfv_machine = {
 511     .name = "xenfv",
 512     .desc = "Xen Fully-virtualized PC",
 513     .init = pc_xen_hvm_init,
 514     .max_cpus = HVM_MAX_VCPUS,
 515     .default_machine_opts = "accel=xen",
 516 };
 517 #endif
 518
 519 static void pc_machine_init(void)
 520 {
 521     qemu_register_machine(&pc_machine);
 522     qemu_register_machine(&pc_machine_v0_13);
 523     qemu_register_machine(&pc_machine_v0_12);
 524     qemu_register_machine(&pc_machine_v0_11);
 525     qemu_register_machine(&pc_machine_v0_10);
 526     qemu_register_machine(&isapc_machine);
 527 #ifdef CONFIG_XEN
 528     qemu_register_machine(&xenfv_machine);
 529 #endif
 530 }
 531
 532 machine_init(pc_machine_init);