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(GSIState *gsi_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         gsi_state->ioapic_irq[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 *gsi;
  91     qemu_irq *i8259;
  92     qemu_irq *cmos_s3;
  93     qemu_irq *smi_irq;
  94     GSIState *gsi_state;
  95     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  96     BusState *idebus[MAX_IDE_BUS];
  97     ISADevice *rtc_state;
  98     ISADevice *floppy;
  99     MemoryRegion *ram_memory;
 100     MemoryRegion *pci_memory;
 101     MemoryRegion *rom_memory;
 102
 103     pc_cpus_init(cpu_model);
 104
 105     if (kvmclock_enabled) {
 106         kvmclock_create();
 107     }
 108
 109     if (ram_size >= 0xe0000000 ) {
 110         above_4g_mem_size = ram_size - 0xe0000000;
 111         below_4g_mem_size = 0xe0000000;
 112     } else {
 113         above_4g_mem_size = 0;
 114         below_4g_mem_size = ram_size;
 115     }
 116
 117     if (pci_enabled) {
 118         pci_memory = g_new(MemoryRegion, 1);
 119         memory_region_init(pci_memory, "pci", INT64_MAX);
 120         rom_memory = pci_memory;
 121     } else {
 122         pci_memory = NULL;
 123         rom_memory = system_memory;
 124     }
 125
 126     /* allocate ram and load rom/bios */
 127     if (!xen_enabled()) {
 128         pc_memory_init(system_memory,
 129                        kernel_filename, kernel_cmdline, initrd_filename,
 130                        below_4g_mem_size, above_4g_mem_size,
 131                        pci_enabled ? rom_memory : system_memory, &ram_memory);
 132     }
 133
 134     gsi_state = g_malloc0(sizeof(*gsi_state));
 135     gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
 136
 137     if (pci_enabled) {
 138         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, gsi,
 139                               system_memory, system_io, ram_size,
 140                               below_4g_mem_size,
 141                               0x100000000ULL - below_4g_mem_size,
 142                               0x100000000ULL + above_4g_mem_size,
 143                               (sizeof(target_phys_addr_t) == 4
 144                                ? 0
 145                                : ((uint64_t)1 << 62)),
 146                               pci_memory, ram_memory);
 147     } else {
 148         pci_bus = NULL;
 149         i440fx_state = NULL;
 150         isa_bus_new(NULL, system_io);
 151         no_hpet = 1;
 152     }
 153     isa_bus_irqs(gsi);
 154
 155     if (!xen_enabled()) {
 156         cpu_irq = pc_allocate_cpu_irq();
 157         i8259 = i8259_init(cpu_irq[0]);
 158     } else {
 159         i8259 = xen_interrupt_controller_init();
 160     }
 161
 162     for (i = 0; i < ISA_NUM_IRQS; i++) {
 163         gsi_state->i8259_irq[i] = i8259[i];
 164     }
 165     if (pci_enabled) {
 166         ioapic_init(gsi_state);
 167     }
 168
 169     pc_register_ferr_irq(gsi[13]);
 170
 171     pc_vga_init(pci_enabled? pci_bus: NULL);
 172
 173     if (xen_enabled()) {
 174         pci_create_simple(pci_bus, -1, "xen-platform");
 175     }
 176
 177     /* init basic PC hardware */
 178     pc_basic_device_init(gsi, &rtc_state, &floppy, xen_enabled());
 179
 180     for(i = 0; i < nb_nics; i++) {
 181         NICInfo *nd = &nd_table[i];
 182
 183         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 184             pc_init_ne2k_isa(nd);
 185         else
 186             pci_nic_init_nofail(nd, "e1000", NULL);
 187     }
 188
 189     ide_drive_get(hd, MAX_IDE_BUS);
 190     if (pci_enabled) {
 191         PCIDevice *dev;
 192         if (xen_enabled()) {
 193             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 194         } else {
 195             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 196         }
 197         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 198         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 199     } else {
 200         for(i = 0; i < MAX_IDE_BUS; i++) {
 201             ISADevice *dev;
 202             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 203                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 204             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 205         }
 206     }
 207
 208     audio_init(gsi, pci_enabled ? pci_bus : NULL);
 209
 210     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 211                  floppy, idebus[0], idebus[1], rtc_state);
 212
 213     if (pci_enabled && usb_enabled) {
 214         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 215     }
 216
 217     if (pci_enabled && acpi_enabled) {
 218         i2c_bus *smbus;
 219
 220         if (!xen_enabled()) {
 221             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 222         } else {
 223             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 224         }
 225         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 226         /* TODO: Populate SPD eeprom data.  */
 227         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 228                               gsi[9], *cmos_s3, *smi_irq,
 229                               kvm_enabled());
 230         smbus_eeprom_init(smbus, 8, NULL, 0);
 231     }
 232
 233     if (pci_enabled) {
 234         pc_pci_device_init(pci_bus);
 235     }
 236 }
 237
 238 static void pc_init_pci(ram_addr_t ram_size,
 239                         const char *boot_device,
 240                         const char *kernel_filename,
 241                         const char *kernel_cmdline,
 242                         const char *initrd_filename,
 243                         const char *cpu_model)
 244 {
 245     pc_init1(get_system_memory(),
 246              get_system_io(),
 247              ram_size, boot_device,
 248              kernel_filename, kernel_cmdline,
 249              initrd_filename, cpu_model, 1, 1);
 250 }
 251
 252 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 253                                     const char *boot_device,
 254                                     const char *kernel_filename,
 255                                     const char *kernel_cmdline,
 256                                     const char *initrd_filename,
 257                                     const char *cpu_model)
 258 {
 259     pc_init1(get_system_memory(),
 260              get_system_io(),
 261              ram_size, boot_device,
 262              kernel_filename, kernel_cmdline,
 263              initrd_filename, cpu_model, 1, 0);
 264 }
 265
 266 static void pc_init_isa(ram_addr_t ram_size,
 267                         const char *boot_device,
 268                         const char *kernel_filename,
 269                         const char *kernel_cmdline,
 270                         const char *initrd_filename,
 271                         const char *cpu_model)
 272 {
 273     if (cpu_model == NULL)
 274         cpu_model = "486";
 275     pc_init1(get_system_memory(),
 276              get_system_io(),
 277              ram_size, boot_device,
 278              kernel_filename, kernel_cmdline,
 279              initrd_filename, cpu_model, 0, 1);
 280 }
 281
 282 #ifdef CONFIG_XEN
 283 static void pc_xen_hvm_init(ram_addr_t ram_size,
 284                             const char *boot_device,
 285                             const char *kernel_filename,
 286                             const char *kernel_cmdline,
 287                             const char *initrd_filename,
 288                             const char *cpu_model)
 289 {
 290     if (xen_hvm_init() != 0) {
 291         hw_error("xen hardware virtual machine initialisation failed");
 292     }
 293     pc_init_pci_no_kvmclock(ram_size, boot_device,
 294                             kernel_filename, kernel_cmdline,
 295                             initrd_filename, cpu_model);
 296     xen_vcpu_init();
 297 }
 298 #endif
 299
 300 static QEMUMachine pc_machine = {
 301     .name = "pc-0.14",
 302     .alias = "pc",
 303     .desc = "Standard PC",
 304     .init = pc_init_pci,
 305     .max_cpus = 255,
 306     .is_default = 1,
 307 };
 308
 309 static QEMUMachine pc_machine_v0_13 = {
 310     .name = "pc-0.13",
 311     .desc = "Standard PC",
 312     .init = pc_init_pci_no_kvmclock,
 313     .max_cpus = 255,
 314     .compat_props = (GlobalProperty[]) {
 315         {
 316             .driver   = "virtio-9p-pci",
 317             .property = "vectors",
 318             .value    = stringify(0),
 319         },{
 320             .driver   = "VGA",
 321             .property = "rombar",
 322             .value    = stringify(0),
 323         },{
 324             .driver   = "vmware-svga",
 325             .property = "rombar",
 326             .value    = stringify(0),
 327         },{
 328             .driver   = "PCI",
 329             .property = "command_serr_enable",
 330             .value    = "off",
 331         },{
 332             .driver   = "virtio-blk-pci",
 333             .property = "event_idx",
 334             .value    = "off",
 335         },{
 336             .driver   = "virtio-serial-pci",
 337             .property = "event_idx",
 338             .value    = "off",
 339         },{
 340             .driver   = "virtio-net-pci",
 341             .property = "event_idx",
 342             .value    = "off",
 343         },
 344         { /* end of list */ }
 345     },
 346 };
 347
 348 static QEMUMachine pc_machine_v0_12 = {
 349     .name = "pc-0.12",
 350     .desc = "Standard PC",
 351     .init = pc_init_pci_no_kvmclock,
 352     .max_cpus = 255,
 353     .compat_props = (GlobalProperty[]) {
 354         {
 355             .driver   = "virtio-serial-pci",
 356             .property = "max_ports",
 357             .value    = stringify(1),
 358         },{
 359             .driver   = "virtio-serial-pci",
 360             .property = "vectors",
 361             .value    = stringify(0),
 362         },{
 363             .driver   = "VGA",
 364             .property = "rombar",
 365             .value    = stringify(0),
 366         },{
 367             .driver   = "vmware-svga",
 368             .property = "rombar",
 369             .value    = stringify(0),
 370         },{
 371             .driver   = "PCI",
 372             .property = "command_serr_enable",
 373             .value    = "off",
 374         },{
 375             .driver   = "virtio-blk-pci",
 376             .property = "event_idx",
 377             .value    = "off",
 378         },{
 379             .driver   = "virtio-serial-pci",
 380             .property = "event_idx",
 381             .value    = "off",
 382         },{
 383             .driver   = "virtio-net-pci",
 384             .property = "event_idx",
 385             .value    = "off",
 386         },
 387         { /* end of list */ }
 388     }
 389 };
 390
 391 static QEMUMachine pc_machine_v0_11 = {
 392     .name = "pc-0.11",
 393     .desc = "Standard PC, qemu 0.11",
 394     .init = pc_init_pci_no_kvmclock,
 395     .max_cpus = 255,
 396     .compat_props = (GlobalProperty[]) {
 397         {
 398             .driver   = "virtio-blk-pci",
 399             .property = "vectors",
 400             .value    = stringify(0),
 401         },{
 402             .driver   = "virtio-serial-pci",
 403             .property = "max_ports",
 404             .value    = stringify(1),
 405         },{
 406             .driver   = "virtio-serial-pci",
 407             .property = "vectors",
 408             .value    = stringify(0),
 409         },{
 410             .driver   = "ide-drive",
 411             .property = "ver",
 412             .value    = "0.11",
 413         },{
 414             .driver   = "scsi-disk",
 415             .property = "ver",
 416             .value    = "0.11",
 417         },{
 418             .driver   = "PCI",
 419             .property = "rombar",
 420             .value    = stringify(0),
 421         },{
 422             .driver   = "PCI",
 423             .property = "command_serr_enable",
 424             .value    = "off",
 425         },{
 426             .driver   = "virtio-blk-pci",
 427             .property = "event_idx",
 428             .value    = "off",
 429         },{
 430             .driver   = "virtio-serial-pci",
 431             .property = "event_idx",
 432             .value    = "off",
 433         },{
 434             .driver   = "virtio-net-pci",
 435             .property = "event_idx",
 436             .value    = "off",
 437         },
 438         { /* end of list */ }
 439     }
 440 };
 441
 442 static QEMUMachine pc_machine_v0_10 = {
 443     .name = "pc-0.10",
 444     .desc = "Standard PC, qemu 0.10",
 445     .init = pc_init_pci_no_kvmclock,
 446     .max_cpus = 255,
 447     .compat_props = (GlobalProperty[]) {
 448         {
 449             .driver   = "virtio-blk-pci",
 450             .property = "class",
 451             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 452         },{
 453             .driver   = "virtio-serial-pci",
 454             .property = "class",
 455             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 456         },{
 457             .driver   = "virtio-serial-pci",
 458             .property = "max_ports",
 459             .value    = stringify(1),
 460         },{
 461             .driver   = "virtio-serial-pci",
 462             .property = "vectors",
 463             .value    = stringify(0),
 464         },{
 465             .driver   = "virtio-net-pci",
 466             .property = "vectors",
 467             .value    = stringify(0),
 468         },{
 469             .driver   = "virtio-blk-pci",
 470             .property = "vectors",
 471             .value    = stringify(0),
 472         },{
 473             .driver   = "ide-drive",
 474             .property = "ver",
 475             .value    = "0.10",
 476         },{
 477             .driver   = "scsi-disk",
 478             .property = "ver",
 479             .value    = "0.10",
 480         },{
 481             .driver   = "PCI",
 482             .property = "rombar",
 483             .value    = stringify(0),
 484         },{
 485             .driver   = "PCI",
 486             .property = "command_serr_enable",
 487             .value    = "off",
 488         },{
 489             .driver   = "virtio-blk-pci",
 490             .property = "event_idx",
 491             .value    = "off",
 492         },{
 493             .driver   = "virtio-serial-pci",
 494             .property = "event_idx",
 495             .value    = "off",
 496         },{
 497             .driver   = "virtio-net-pci",
 498             .property = "event_idx",
 499             .value    = "off",
 500         },
 501         { /* end of list */ }
 502     },
 503 };
 504
 505 static QEMUMachine isapc_machine = {
 506     .name = "isapc",
 507     .desc = "ISA-only PC",
 508     .init = pc_init_isa,
 509     .max_cpus = 1,
 510 };
 511
 512 #ifdef CONFIG_XEN
 513 static QEMUMachine xenfv_machine = {
 514     .name = "xenfv",
 515     .desc = "Xen Fully-virtualized PC",
 516     .init = pc_xen_hvm_init,
 517     .max_cpus = HVM_MAX_VCPUS,
 518     .default_machine_opts = "accel=xen",
 519 };
 520 #endif
 521
 522 static void pc_machine_init(void)
 523 {
 524     qemu_register_machine(&pc_machine);
 525     qemu_register_machine(&pc_machine_v0_13);
 526     qemu_register_machine(&pc_machine_v0_12);
 527     qemu_register_machine(&pc_machine_v0_11);
 528     qemu_register_machine(&pc_machine_v0_10);
 529     qemu_register_machine(&isapc_machine);
 530 #ifdef CONFIG_XEN
 531     qemu_register_machine(&xenfv_machine);
 532 #endif
 533 }
 534
 535 machine_init(pc_machine_init);