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 "hw.h"
  26 #include "pc.h"
  27 #include "apic.h"
  28 #include "pci.h"
  29 #include "usb-uhci.h"
  30 #include "usb-ohci.h"
  31 #include "net.h"
  32 #include "boards.h"
  33 #include "ide.h"
  34 #include "kvm.h"
  35 #include "kvmclock.h"
  36 #include "sysemu.h"
  37 #include "sysbus.h"
  38 #include "arch_init.h"
  39 #include "blockdev.h"
  40 #include "smbus.h"
  41 #include "xen.h"
  42 #ifdef CONFIG_XEN
  43 #  include <xen/hvm/hvm_info_table.h>
  44 #endif
  45
  46 #define MAX_IDE_BUS 2
  47
  48 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  49 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  50 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  51
  52 static void ioapic_init(IsaIrqState *isa_irq_state)
  53 {
  54     DeviceState *dev;
  55     SysBusDevice *d;
  56     unsigned int i;
  57
  58     dev = qdev_create(NULL, "ioapic");
  59     qdev_init_nofail(dev);
  60     d = sysbus_from_qdev(dev);
  61     sysbus_mmio_map(d, 0, 0xfec00000);
  62
  63     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
  64         isa_irq_state->ioapic[i] = qdev_get_gpio_in(dev, i);
  65     }
  66 }
  67
  68 /* PC hardware initialisation */
  69 static void pc_init1(ram_addr_t ram_size,
  70                      const char *boot_device,
  71                      const char *kernel_filename,
  72                      const char *kernel_cmdline,
  73                      const char *initrd_filename,
  74                      const char *cpu_model,
  75                      int pci_enabled,
  76                      int kvmclock_enabled)
  77 {
  78     int i;
  79     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  80     PCIBus *pci_bus;
  81     PCII440FXState *i440fx_state;
  82     int piix3_devfn = -1;
  83     qemu_irq *cpu_irq;
  84     qemu_irq *isa_irq;
  85     qemu_irq *i8259;
  86     qemu_irq *cmos_s3;
  87     qemu_irq *smi_irq;
  88     IsaIrqState *isa_irq_state;
  89     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  90     BusState *idebus[MAX_IDE_BUS];
  91     ISADevice *rtc_state;
  92
  93     pc_cpus_init(cpu_model);
  94
  95     if (kvmclock_enabled) {
  96         kvmclock_create();
  97     }
  98
  99     if (ram_size >= 0xe0000000 ) {
 100         above_4g_mem_size = ram_size - 0xe0000000;
 101         below_4g_mem_size = 0xe0000000;
 102     } else {
 103         above_4g_mem_size = 0;
 104         below_4g_mem_size = ram_size;
 105     }
 106
 107     /* allocate ram and load rom/bios */
 108     if (!xen_enabled()) {
 109         pc_memory_init(kernel_filename, kernel_cmdline, initrd_filename,
 110                        below_4g_mem_size, above_4g_mem_size);
 111     }
 112
 113     if (!xen_enabled()) {
 114         cpu_irq = pc_allocate_cpu_irq();
 115         i8259 = i8259_init(cpu_irq[0]);
 116     } else {
 117         i8259 = xen_interrupt_controller_init();
 118     }
 119     isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
 120     isa_irq_state->i8259 = i8259;
 121     if (pci_enabled) {
 122         ioapic_init(isa_irq_state);
 123     }
 124     isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 125
 126     if (pci_enabled) {
 127         if (!xen_enabled()) {
 128             pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 129         } else {
 130             pci_bus = i440fx_xen_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 131         }
 132     } else {
 133         pci_bus = NULL;
 134         i440fx_state = NULL;
 135         isa_bus_new(NULL);
 136     }
 137     isa_bus_irqs(isa_irq);
 138
 139     pc_register_ferr_irq(isa_get_irq(13));
 140
 141     pc_vga_init(pci_enabled? pci_bus: NULL);
 142
 143     /* init basic PC hardware */
 144     pc_basic_device_init(isa_irq, &rtc_state, xen_enabled());
 145
 146     for(i = 0; i < nb_nics; i++) {
 147         NICInfo *nd = &nd_table[i];
 148
 149         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 150             pc_init_ne2k_isa(nd);
 151         else
 152             pci_nic_init_nofail(nd, "e1000", NULL);
 153     }
 154
 155     ide_drive_get(hd, MAX_IDE_BUS);
 156     if (pci_enabled) {
 157         PCIDevice *dev;
 158         dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 159         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 160         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 161     } else {
 162         for(i = 0; i < MAX_IDE_BUS; i++) {
 163             ISADevice *dev;
 164             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 165                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 166             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 167         }
 168     }
 169
 170     audio_init(isa_irq, pci_enabled ? pci_bus : NULL);
 171
 172     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 173                  idebus[0], idebus[1], rtc_state);
 174
 175     if (pci_enabled && usb_enabled) {
 176         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 177     }
 178
 179     if (pci_enabled && acpi_enabled) {
 180         i2c_bus *smbus;
 181
 182         if (!xen_enabled()) {
 183             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 184         } else {
 185             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 186         }
 187         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 188         /* TODO: Populate SPD eeprom data.  */
 189         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 190                               isa_get_irq(9), *cmos_s3, *smi_irq,
 191                               kvm_enabled());
 192         smbus_eeprom_init(smbus, 8, NULL, 0);
 193     }
 194
 195     if (i440fx_state) {
 196         i440fx_init_memory_mappings(i440fx_state);
 197     }
 198
 199     if (pci_enabled) {
 200         pc_pci_device_init(pci_bus);
 201     }
 202 }
 203
 204 static void pc_init_pci(ram_addr_t ram_size,
 205                         const char *boot_device,
 206                         const char *kernel_filename,
 207                         const char *kernel_cmdline,
 208                         const char *initrd_filename,
 209                         const char *cpu_model)
 210 {
 211     pc_init1(ram_size, boot_device,
 212              kernel_filename, kernel_cmdline,
 213              initrd_filename, cpu_model, 1, 1);
 214 }
 215
 216 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 217                                     const char *boot_device,
 218                                     const char *kernel_filename,
 219                                     const char *kernel_cmdline,
 220                                     const char *initrd_filename,
 221                                     const char *cpu_model)
 222 {
 223     pc_init1(ram_size, boot_device,
 224              kernel_filename, kernel_cmdline,
 225              initrd_filename, cpu_model, 1, 0);
 226 }
 227
 228 static void pc_init_isa(ram_addr_t ram_size,
 229                         const char *boot_device,
 230                         const char *kernel_filename,
 231                         const char *kernel_cmdline,
 232                         const char *initrd_filename,
 233                         const char *cpu_model)
 234 {
 235     if (cpu_model == NULL)
 236         cpu_model = "486";
 237     pc_init1(ram_size, boot_device,
 238              kernel_filename, kernel_cmdline,
 239              initrd_filename, cpu_model, 0, 1);
 240 }
 241
 242 #ifdef CONFIG_XEN
 243 static void pc_xen_hvm_init(ram_addr_t ram_size,
 244                             const char *boot_device,
 245                             const char *kernel_filename,
 246                             const char *kernel_cmdline,
 247                             const char *initrd_filename,
 248                             const char *cpu_model)
 249 {
 250     if (xen_hvm_init() != 0) {
 251         hw_error("xen hardware virtual machine initialisation failed");
 252     }
 253     pc_init_pci_no_kvmclock(ram_size, boot_device,
 254                             kernel_filename, kernel_cmdline,
 255                             initrd_filename, cpu_model);
 256     xen_vcpu_init();
 257 }
 258 #endif
 259
 260 static QEMUMachine pc_machine = {
 261     .name = "pc-0.14",
 262     .alias = "pc",
 263     .desc = "Standard PC",
 264     .init = pc_init_pci,
 265     .max_cpus = 255,
 266     .is_default = 1,
 267 };
 268
 269 static QEMUMachine pc_machine_v0_13 = {
 270     .name = "pc-0.13",
 271     .desc = "Standard PC",
 272     .init = pc_init_pci_no_kvmclock,
 273     .max_cpus = 255,
 274     .compat_props = (GlobalProperty[]) {
 275         {
 276             .driver   = "virtio-9p-pci",
 277             .property = "vectors",
 278             .value    = stringify(0),
 279         },{
 280             .driver   = "VGA",
 281             .property = "rombar",
 282             .value    = stringify(0),
 283         },{
 284             .driver   = "vmware-svga",
 285             .property = "rombar",
 286             .value    = stringify(0),
 287         },{
 288             .driver   = "PCI",
 289             .property = "command_serr_enable",
 290             .value    = "off",
 291         },
 292         { /* end of list */ }
 293     },
 294 };
 295
 296 static QEMUMachine pc_machine_v0_12 = {
 297     .name = "pc-0.12",
 298     .desc = "Standard PC",
 299     .init = pc_init_pci_no_kvmclock,
 300     .max_cpus = 255,
 301     .compat_props = (GlobalProperty[]) {
 302         {
 303             .driver   = "virtio-serial-pci",
 304             .property = "max_ports",
 305             .value    = stringify(1),
 306         },{
 307             .driver   = "virtio-serial-pci",
 308             .property = "vectors",
 309             .value    = stringify(0),
 310         },{
 311             .driver   = "VGA",
 312             .property = "rombar",
 313             .value    = stringify(0),
 314         },{
 315             .driver   = "vmware-svga",
 316             .property = "rombar",
 317             .value    = stringify(0),
 318         },{
 319             .driver   = "PCI",
 320             .property = "command_serr_enable",
 321             .value    = "off",
 322         },
 323         { /* end of list */ }
 324     }
 325 };
 326
 327 static QEMUMachine pc_machine_v0_11 = {
 328     .name = "pc-0.11",
 329     .desc = "Standard PC, qemu 0.11",
 330     .init = pc_init_pci_no_kvmclock,
 331     .max_cpus = 255,
 332     .compat_props = (GlobalProperty[]) {
 333         {
 334             .driver   = "virtio-blk-pci",
 335             .property = "vectors",
 336             .value    = stringify(0),
 337         },{
 338             .driver   = "virtio-serial-pci",
 339             .property = "max_ports",
 340             .value    = stringify(1),
 341         },{
 342             .driver   = "virtio-serial-pci",
 343             .property = "vectors",
 344             .value    = stringify(0),
 345         },{
 346             .driver   = "ide-drive",
 347             .property = "ver",
 348             .value    = "0.11",
 349         },{
 350             .driver   = "scsi-disk",
 351             .property = "ver",
 352             .value    = "0.11",
 353         },{
 354             .driver   = "PCI",
 355             .property = "rombar",
 356             .value    = stringify(0),
 357         },{
 358             .driver   = "PCI",
 359             .property = "command_serr_enable",
 360             .value    = "off",
 361         },
 362         { /* end of list */ }
 363     }
 364 };
 365
 366 static QEMUMachine pc_machine_v0_10 = {
 367     .name = "pc-0.10",
 368     .desc = "Standard PC, qemu 0.10",
 369     .init = pc_init_pci_no_kvmclock,
 370     .max_cpus = 255,
 371     .compat_props = (GlobalProperty[]) {
 372         {
 373             .driver   = "virtio-blk-pci",
 374             .property = "class",
 375             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 376         },{
 377             .driver   = "virtio-serial-pci",
 378             .property = "class",
 379             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 380         },{
 381             .driver   = "virtio-serial-pci",
 382             .property = "max_ports",
 383             .value    = stringify(1),
 384         },{
 385             .driver   = "virtio-serial-pci",
 386             .property = "vectors",
 387             .value    = stringify(0),
 388         },{
 389             .driver   = "virtio-net-pci",
 390             .property = "vectors",
 391             .value    = stringify(0),
 392         },{
 393             .driver   = "virtio-blk-pci",
 394             .property = "vectors",
 395             .value    = stringify(0),
 396         },{
 397             .driver   = "ide-drive",
 398             .property = "ver",
 399             .value    = "0.10",
 400         },{
 401             .driver   = "scsi-disk",
 402             .property = "ver",
 403             .value    = "0.10",
 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         { /* end of list */ }
 414     },
 415 };
 416
 417 static QEMUMachine isapc_machine = {
 418     .name = "isapc",
 419     .desc = "ISA-only PC",
 420     .init = pc_init_isa,
 421     .max_cpus = 1,
 422 };
 423
 424 #ifdef CONFIG_XEN
 425 static QEMUMachine xenfv_machine = {
 426     .name = "xenfv",
 427     .desc = "Xen Fully-virtualized PC",
 428     .init = pc_xen_hvm_init,
 429     .max_cpus = HVM_MAX_VCPUS,
 430     .default_machine_opts = "accel=xen",
 431 };
 432 #endif
 433
 434 static void pc_machine_init(void)
 435 {
 436     qemu_register_machine(&pc_machine);
 437     qemu_register_machine(&pc_machine_v0_13);
 438     qemu_register_machine(&pc_machine_v0_12);
 439     qemu_register_machine(&pc_machine_v0_11);
 440     qemu_register_machine(&pc_machine_v0_10);
 441     qemu_register_machine(&isapc_machine);
 442 #ifdef CONFIG_XEN
 443     qemu_register_machine(&xenfv_machine);
 444 #endif
 445 }
 446
 447 machine_init(pc_machine_init);