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