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