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