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
  36 #define MAX_IDE_BUS 2
  37
  38 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  39 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  40 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  41
  42 /* PC hardware initialisation */
  43 static void pc_init1(ram_addr_t ram_size,
  44                      const char *boot_device,
  45                      const char *kernel_filename,
  46                      const char *kernel_cmdline,
  47                      const char *initrd_filename,
  48                      const char *cpu_model,
  49                      int pci_enabled)
  50 {
  51     int i;
  52     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  53     PCIBus *pci_bus;
  54     PCII440FXState *i440fx_state;
  55     int piix3_devfn = -1;
  56     qemu_irq *cpu_irq;
  57     qemu_irq *isa_irq;
  58     qemu_irq *i8259;
  59     qemu_irq *cmos_s3;
  60     qemu_irq *smi_irq;
  61     IsaIrqState *isa_irq_state;
  62     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  63     FDCtrl *floppy_controller;
  64     ISADevice *rtc_state;
  65
  66     pc_cpus_init(cpu_model);
  67
  68     vmport_init();
  69
  70     /* allocate ram and load rom/bios */
  71     pc_memory_init(ram_size, kernel_filename, kernel_cmdline, initrd_filename,
  72                    &below_4g_mem_size, &above_4g_mem_size);
  73
  74     cpu_irq = pc_allocate_cpu_irq();
  75     i8259 = i8259_init(cpu_irq[0]);
  76     isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
  77     isa_irq_state->i8259 = i8259;
  78     if (pci_enabled) {
  79         isa_irq_state->ioapic = ioapic_init();
  80     }
  81     isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
  82
  83     if (pci_enabled) {
  84         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
  85     } else {
  86         pci_bus = NULL;
  87         isa_bus_new(NULL);
  88     }
  89     isa_bus_irqs(isa_irq);
  90
  91     pc_register_ferr_irq(isa_reserve_irq(13));
  92
  93     pc_vga_init(pci_enabled? pci_bus: NULL);
  94
  95     /* init basic PC hardware */
  96     pc_basic_device_init(isa_irq, &floppy_controller, &rtc_state);
  97
  98     for(i = 0; i < nb_nics; i++) {
  99         NICInfo *nd = &nd_table[i];
 100
 101         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 102             pc_init_ne2k_isa(nd);
 103         else
 104             pci_nic_init_nofail(nd, "e1000", NULL);
 105     }
 106
 107     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 108         fprintf(stderr, "qemu: too many IDE bus\n");
 109         exit(1);
 110     }
 111
 112     for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
 113         hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
 114     }
 115
 116     if (pci_enabled) {
 117         pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 118     } else {
 119         for(i = 0; i < MAX_IDE_BUS; i++) {
 120             isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 121                          hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 122         }
 123     }
 124
 125 #ifdef HAS_AUDIO
 126     pc_audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
 127 #endif
 128
 129     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd,
 130                  floppy_controller, rtc_state);
 131
 132     if (pci_enabled && usb_enabled) {
 133         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 134     }
 135
 136     if (pci_enabled && acpi_enabled) {
 137         uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
 138         i2c_bus *smbus;
 139
 140         cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 141         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 142         /* TODO: Populate SPD eeprom data.  */
 143         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 144                               isa_reserve_irq(9), *cmos_s3, *smi_irq,
 145                               kvm_enabled());
 146         for (i = 0; i < 8; i++) {
 147             DeviceState *eeprom;
 148             eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
 149             qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
 150             qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
 151             qdev_init_nofail(eeprom);
 152         }
 153     }
 154
 155     if (i440fx_state) {
 156         i440fx_init_memory_mappings(i440fx_state);
 157     }
 158
 159     if (pci_enabled) {
 160         pc_pci_device_init(pci_bus);
 161     }
 162 }
 163
 164 static void pc_init_pci(ram_addr_t ram_size,
 165                         const char *boot_device,
 166                         const char *kernel_filename,
 167                         const char *kernel_cmdline,
 168                         const char *initrd_filename,
 169                         const char *cpu_model)
 170 {
 171     pc_init1(ram_size, boot_device,
 172              kernel_filename, kernel_cmdline,
 173              initrd_filename, cpu_model, 1);
 174 }
 175
 176 static void pc_init_isa(ram_addr_t ram_size,
 177                         const char *boot_device,
 178                         const char *kernel_filename,
 179                         const char *kernel_cmdline,
 180                         const char *initrd_filename,
 181                         const char *cpu_model)
 182 {
 183     if (cpu_model == NULL)
 184         cpu_model = "486";
 185     pc_init1(ram_size, boot_device,
 186              kernel_filename, kernel_cmdline,
 187              initrd_filename, cpu_model, 0);
 188 }
 189
 190 static QEMUMachine pc_machine = {
 191     .name = "pc-0.13",
 192     .alias = "pc",
 193     .desc = "Standard PC",
 194     .init = pc_init_pci,
 195     .max_cpus = 255,
 196     .is_default = 1,
 197 };
 198
 199 static QEMUMachine pc_machine_v0_12 = {
 200     .name = "pc-0.12",
 201     .desc = "Standard PC",
 202     .init = pc_init_pci,
 203     .max_cpus = 255,
 204     .compat_props = (GlobalProperty[]) {
 205         {
 206             .driver   = "virtio-serial-pci",
 207             .property = "max_nr_ports",
 208             .value    = stringify(1),
 209         },{
 210             .driver   = "virtio-serial-pci",
 211             .property = "vectors",
 212             .value    = stringify(0),
 213         },
 214         { /* end of list */ }
 215     }
 216 };
 217
 218 static QEMUMachine pc_machine_v0_11 = {
 219     .name = "pc-0.11",
 220     .desc = "Standard PC, qemu 0.11",
 221     .init = pc_init_pci,
 222     .max_cpus = 255,
 223     .compat_props = (GlobalProperty[]) {
 224         {
 225             .driver   = "virtio-blk-pci",
 226             .property = "vectors",
 227             .value    = stringify(0),
 228         },{
 229             .driver   = "virtio-serial-pci",
 230             .property = "max_nr_ports",
 231             .value    = stringify(1),
 232         },{
 233             .driver   = "virtio-serial-pci",
 234             .property = "vectors",
 235             .value    = stringify(0),
 236         },{
 237             .driver   = "ide-drive",
 238             .property = "ver",
 239             .value    = "0.11",
 240         },{
 241             .driver   = "scsi-disk",
 242             .property = "ver",
 243             .value    = "0.11",
 244         },{
 245             .driver   = "PCI",
 246             .property = "rombar",
 247             .value    = stringify(0),
 248         },
 249         { /* end of list */ }
 250     }
 251 };
 252
 253 static QEMUMachine pc_machine_v0_10 = {
 254     .name = "pc-0.10",
 255     .desc = "Standard PC, qemu 0.10",
 256     .init = pc_init_pci,
 257     .max_cpus = 255,
 258     .compat_props = (GlobalProperty[]) {
 259         {
 260             .driver   = "virtio-blk-pci",
 261             .property = "class",
 262             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 263         },{
 264             .driver   = "virtio-serial-pci",
 265             .property = "class",
 266             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 267         },{
 268             .driver   = "virtio-serial-pci",
 269             .property = "max_nr_ports",
 270             .value    = stringify(1),
 271         },{
 272             .driver   = "virtio-serial-pci",
 273             .property = "vectors",
 274             .value    = stringify(0),
 275         },{
 276             .driver   = "virtio-net-pci",
 277             .property = "vectors",
 278             .value    = stringify(0),
 279         },{
 280             .driver   = "virtio-blk-pci",
 281             .property = "vectors",
 282             .value    = stringify(0),
 283         },{
 284             .driver   = "ide-drive",
 285             .property = "ver",
 286             .value    = "0.10",
 287         },{
 288             .driver   = "scsi-disk",
 289             .property = "ver",
 290             .value    = "0.10",
 291         },{
 292             .driver   = "PCI",
 293             .property = "rombar",
 294             .value    = stringify(0),
 295         },
 296         { /* end of list */ }
 297     },
 298 };
 299
 300 static QEMUMachine isapc_machine = {
 301     .name = "isapc",
 302     .desc = "ISA-only PC",
 303     .init = pc_init_isa,
 304     .max_cpus = 1,
 305 };
 306
 307 static void pc_machine_init(void)
 308 {
 309     qemu_register_machine(&pc_machine);
 310     qemu_register_machine(&pc_machine_v0_12);
 311     qemu_register_machine(&pc_machine_v0_11);
 312     qemu_register_machine(&pc_machine_v0_10);
 313     qemu_register_machine(&isapc_machine);
 314 }
 315
 316 machine_init(pc_machine_init);