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 qemu_irq *ioapic_irq_hack;
  47
  48 #define MAX_IDE_BUS 2
  49
  50 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  51 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  52 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  53
  54 const char *global_cpu_model; /* cpu hotadd */
  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(ram_addr_t ram_size,
  74                      const char *boot_device,
  75                      const char *kernel_filename,
  76                      const char *kernel_cmdline,
  77                      const char *initrd_filename,
  78                      const char *cpu_model,
  79                      int pci_enabled,
  80                      int kvmclock_enabled)
  81 {
  82     int i;
  83     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  84     PCIBus *pci_bus;
  85     PCII440FXState *i440fx_state;
  86     int piix3_devfn = -1;
  87     qemu_irq *cpu_irq;
  88     qemu_irq *isa_irq;
  89     qemu_irq *i8259;
  90     qemu_irq *cmos_s3;
  91     qemu_irq *smi_irq;
  92     IsaIrqState *isa_irq_state;
  93     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  94     BusState *idebus[MAX_IDE_BUS];
  95     ISADevice *rtc_state;
  96
  97     global_cpu_model = cpu_model;
  98
  99     pc_cpus_init(cpu_model);
 100
 101     if (kvmclock_enabled) {
 102         kvmclock_create();
 103     }
 104
 105     if (ram_size >= 0xe0000000 ) {
 106         above_4g_mem_size = ram_size - 0xe0000000;
 107         below_4g_mem_size = 0xe0000000;
 108     } else {
 109         above_4g_mem_size = 0;
 110         below_4g_mem_size = ram_size;
 111     }
 112
 113     /* allocate ram and load rom/bios */
 114     if (!xen_enabled()) {
 115         pc_memory_init(kernel_filename, kernel_cmdline, initrd_filename,
 116                        below_4g_mem_size, above_4g_mem_size);
 117     }
 118
 119     if (!xen_enabled()) {
 120         cpu_irq = pc_allocate_cpu_irq();
 121         if (!(kvm_enabled() && kvm_irqchip_in_kernel())) {
 122             i8259 = i8259_init(cpu_irq[0]);
 123         } else {
 124             i8259 = kvm_i8259_init(cpu_irq[0]);
 125         }
 126     } else {
 127         i8259 = xen_interrupt_controller_init();
 128     }
 129     isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
 130     isa_irq_state->i8259 = i8259;
 131     if (pci_enabled) {
 132         ioapic_init(isa_irq_state);
 133     }
 134     if (!(kvm_enabled() && kvm_irqchip_in_kernel())) {
 135         isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 136     } else {
 137         isa_irq = i8259;
 138     }
 139
 140     if (pci_enabled) {
 141         if (!xen_enabled()) {
 142             pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 143         } else {
 144             pci_bus = i440fx_xen_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 145         }
 146     } else {
 147         pci_bus = NULL;
 148         i440fx_state = NULL;
 149         isa_bus_new(NULL);
 150     }
 151     isa_bus_irqs(isa_irq);
 152
 153     pc_register_ferr_irq(isa_get_irq(13));
 154
 155     pc_vga_init(pci_enabled? pci_bus: NULL);
 156
 157     /* init basic PC hardware */
 158     pc_basic_device_init(isa_irq, &rtc_state, xen_enabled());
 159
 160     for(i = 0; i < nb_nics; i++) {
 161         NICInfo *nd = &nd_table[i];
 162
 163         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 164             pc_init_ne2k_isa(nd);
 165         else
 166             pci_nic_init_nofail(nd, "rtl8139", NULL);
 167     }
 168
 169     ide_drive_get(hd, MAX_IDE_BUS);
 170     if (pci_enabled) {
 171         PCIDevice *dev;
 172         dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 173         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 174         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 175     } else {
 176         for(i = 0; i < MAX_IDE_BUS; i++) {
 177             ISADevice *dev;
 178             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 179                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 180             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 181         }
 182     }
 183
 184     audio_init(isa_irq, pci_enabled ? pci_bus : NULL);
 185
 186     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 187                  idebus[0], idebus[1], rtc_state);
 188
 189     if (pci_enabled && usb_enabled) {
 190         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 191     }
 192
 193     if (pci_enabled && acpi_enabled) {
 194         i2c_bus *smbus;
 195
 196         if (!xen_enabled()) {
 197             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 198         } else {
 199             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 200         }
 201         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 202         /* TODO: Populate SPD eeprom data.  */
 203         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 204                               isa_get_irq(9), *cmos_s3, *smi_irq,
 205                               kvm_enabled());
 206         smbus_eeprom_init(smbus, 8, NULL, 0);
 207     }
 208
 209     if (i440fx_state) {
 210         i440fx_init_memory_mappings(i440fx_state);
 211     }
 212
 213     if (pci_enabled) {
 214         pc_pci_device_init(pci_bus);
 215     }
 216 }
 217
 218 static void pc_init_pci(ram_addr_t ram_size,
 219                         const char *boot_device,
 220                         const char *kernel_filename,
 221                         const char *kernel_cmdline,
 222                         const char *initrd_filename,
 223                         const char *cpu_model)
 224 {
 225     pc_init1(ram_size, boot_device,
 226              kernel_filename, kernel_cmdline,
 227              initrd_filename, cpu_model, 1, 1);
 228 }
 229
 230 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 231                                     const char *boot_device,
 232                                     const char *kernel_filename,
 233                                     const char *kernel_cmdline,
 234                                     const char *initrd_filename,
 235                                     const char *cpu_model)
 236 {
 237     pc_init1(ram_size, boot_device,
 238              kernel_filename, kernel_cmdline,
 239              initrd_filename, cpu_model, 1, 0);
 240 }
 241
 242 static void pc_init_isa(ram_addr_t ram_size,
 243                         const char *boot_device,
 244                         const char *kernel_filename,
 245                         const char *kernel_cmdline,
 246                         const char *initrd_filename,
 247                         const char *cpu_model)
 248 {
 249     if (cpu_model == NULL)
 250         cpu_model = "486";
 251     pc_init1(ram_size, boot_device,
 252              kernel_filename, kernel_cmdline,
 253              initrd_filename, cpu_model, 0, 1);
 254 }
 255
 256 #ifdef CONFIG_XEN
 257 static void pc_xen_hvm_init(ram_addr_t ram_size,
 258                             const char *boot_device,
 259                             const char *kernel_filename,
 260                             const char *kernel_cmdline,
 261                             const char *initrd_filename,
 262                             const char *cpu_model)
 263 {
 264     if (xen_hvm_init() != 0) {
 265         hw_error("xen hardware virtual machine initialisation failed");
 266     }
 267     pc_init_pci_no_kvmclock(ram_size, boot_device,
 268                             kernel_filename, kernel_cmdline,
 269                             initrd_filename, cpu_model);
 270     xen_vcpu_init();
 271 }
 272 #endif
 273
 274 static QEMUMachine pc_machine = {
 275     .name = "pc-0.14",
 276     .alias = "pc",
 277     .desc = "Standard PC",
 278     .init = pc_init_pci,
 279     .max_cpus = 255,
 280     .is_default = 1,
 281 };
 282
 283 static QEMUMachine pc_machine_v0_13 = {
 284     .name = "pc-0.13",
 285     .desc = "Standard PC",
 286     .init = pc_init_pci_no_kvmclock,
 287     .max_cpus = 255,
 288     .compat_props = (GlobalProperty[]) {
 289         {
 290             .driver   = "virtio-9p-pci",
 291             .property = "vectors",
 292             .value    = stringify(0),
 293         },{
 294             .driver   = "VGA",
 295             .property = "rombar",
 296             .value    = stringify(0),
 297         },{
 298             .driver   = "vmware-svga",
 299             .property = "rombar",
 300             .value    = stringify(0),
 301         },{
 302             .driver   = "PCI",
 303             .property = "command_serr_enable",
 304             .value    = "off",
 305         },
 306         { /* end of list */ }
 307     },
 308 };
 309
 310 static QEMUMachine pc_machine_v0_12 = {
 311     .name = "pc-0.12",
 312     .desc = "Standard PC",
 313     .init = pc_init_pci_no_kvmclock,
 314     .max_cpus = 255,
 315     .compat_props = (GlobalProperty[]) {
 316         {
 317             .driver   = "virtio-serial-pci",
 318             .property = "max_ports",
 319             .value    = stringify(1),
 320         },{
 321             .driver   = "virtio-serial-pci",
 322             .property = "vectors",
 323             .value    = stringify(0),
 324         },{
 325             .driver   = "VGA",
 326             .property = "rombar",
 327             .value    = stringify(0),
 328         },{
 329             .driver   = "vmware-svga",
 330             .property = "rombar",
 331             .value    = stringify(0),
 332         },{
 333             .driver   = "PCI",
 334             .property = "command_serr_enable",
 335             .value    = "off",
 336         },
 337         { /* end of list */ }
 338     }
 339 };
 340
 341 static QEMUMachine pc_machine_v0_11 = {
 342     .name = "pc-0.11",
 343     .desc = "Standard PC, qemu 0.11",
 344     .init = pc_init_pci_no_kvmclock,
 345     .max_cpus = 255,
 346     .compat_props = (GlobalProperty[]) {
 347         {
 348             .driver   = "virtio-blk-pci",
 349             .property = "vectors",
 350             .value    = stringify(0),
 351         },{
 352             .driver   = "virtio-serial-pci",
 353             .property = "max_ports",
 354             .value    = stringify(1),
 355         },{
 356             .driver   = "virtio-serial-pci",
 357             .property = "vectors",
 358             .value    = stringify(0),
 359         },{
 360             .driver   = "ide-drive",
 361             .property = "ver",
 362             .value    = "0.11",
 363         },{
 364             .driver   = "scsi-disk",
 365             .property = "ver",
 366             .value    = "0.11",
 367         },{
 368             .driver   = "PCI",
 369             .property = "rombar",
 370             .value    = stringify(0),
 371         },{
 372             .driver   = "PCI",
 373             .property = "command_serr_enable",
 374             .value    = "off",
 375         },
 376         { /* end of list */ }
 377     }
 378 };
 379
 380 static QEMUMachine pc_machine_v0_10 = {
 381     .name = "pc-0.10",
 382     .desc = "Standard PC, qemu 0.10",
 383     .init = pc_init_pci_no_kvmclock,
 384     .max_cpus = 255,
 385     .compat_props = (GlobalProperty[]) {
 386         {
 387             .driver   = "virtio-blk-pci",
 388             .property = "class",
 389             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 390         },{
 391             .driver   = "virtio-serial-pci",
 392             .property = "class",
 393             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 394         },{
 395             .driver   = "virtio-serial-pci",
 396             .property = "max_ports",
 397             .value    = stringify(1),
 398         },{
 399             .driver   = "virtio-serial-pci",
 400             .property = "vectors",
 401             .value    = stringify(0),
 402         },{
 403             .driver   = "virtio-net-pci",
 404             .property = "vectors",
 405             .value    = stringify(0),
 406         },{
 407             .driver   = "virtio-blk-pci",
 408             .property = "vectors",
 409             .value    = stringify(0),
 410         },{
 411             .driver   = "ide-drive",
 412             .property = "ver",
 413             .value    = "0.10",
 414         },{
 415             .driver   = "scsi-disk",
 416             .property = "ver",
 417             .value    = "0.10",
 418         },{
 419             .driver   = "PCI",
 420             .property = "rombar",
 421             .value    = stringify(0),
 422         },{
 423             .driver   = "PCI",
 424             .property = "command_serr_enable",
 425             .value    = "off",
 426         },
 427         { /* end of list */ }
 428     },
 429 };
 430
 431 static QEMUMachine isapc_machine = {
 432     .name = "isapc",
 433     .desc = "ISA-only PC",
 434     .init = pc_init_isa,
 435     .max_cpus = 1,
 436 };
 437
 438 #ifdef CONFIG_XEN
 439 static QEMUMachine xenfv_machine = {
 440     .name = "xenfv",
 441     .desc = "Xen Fully-virtualized PC",
 442     .init = pc_xen_hvm_init,
 443     .max_cpus = HVM_MAX_VCPUS,
 444     .default_machine_opts = "accel=xen",
 445 };
 446 #endif
 447
 448 static void pc_machine_init(void)
 449 {
 450     qemu_register_machine(&pc_machine);
 451     qemu_register_machine(&pc_machine_v0_13);
 452     qemu_register_machine(&pc_machine_v0_12);
 453     qemu_register_machine(&pc_machine_v0_11);
 454     qemu_register_machine(&pc_machine_v0_10);
 455     qemu_register_machine(&isapc_machine);
 456 #ifdef CONFIG_XEN
 457     qemu_register_machine(&xenfv_machine);
 458 #endif
 459 }
 460
 461 machine_init(pc_machine_init);