hw/ppc/mac_oldworld.c

   1
   2 /*
   3  * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator
   4  *
   5  * Copyright (c) 2004-2007 Fabrice Bellard
   6  * Copyright (c) 2007 Jocelyn Mayer
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  */
  26
  27 #include "qemu/osdep.h"
  28 #include "qemu/datadir.h"
  29 #include "qemu/units.h"
  30 #include "qapi/error.h"
  31 #include "hw/ppc/ppc.h"
  32 #include "hw/qdev-properties.h"
  33 #include "hw/boards.h"
  34 #include "hw/input/adb.h"
  35 #include "sysemu/sysemu.h"
  36 #include "net/net.h"
  37 #include "hw/isa/isa.h"
  38 #include "hw/pci/pci.h"
  39 #include "hw/pci/pci_host.h"
  40 #include "hw/pci-host/grackle.h"
  41 #include "hw/nvram/fw_cfg.h"
  42 #include "hw/char/escc.h"
  43 #include "hw/misc/macio/macio.h"
  44 #include "hw/loader.h"
  45 #include "hw/fw-path-provider.h"
  46 #include "elf.h"
  47 #include "qemu/error-report.h"
  48 #include "sysemu/kvm.h"
  49 #include "sysemu/reset.h"
  50 #include "kvm_ppc.h"
  51
  52 #define MAX_IDE_BUS 2
  53 #define CFG_ADDR 0xf0000510
  54 #define TBFREQ 16600000UL
  55 #define CLOCKFREQ 266000000UL
  56 #define BUSFREQ 66000000UL
  57
  58 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  59
  60 #define PROM_FILENAME "openbios-ppc"
  61 #define PROM_BASE 0xffc00000
  62 #define PROM_SIZE (4 * MiB)
  63
  64 #define KERNEL_LOAD_ADDR 0x01000000
  65 #define KERNEL_GAP       0x00100000
  66
  67 #define GRACKLE_BASE 0xfec00000
  68
  69 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  70                             Error **errp)
  71 {
  72     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  73 }
  74
  75 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  76 {
  77     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  78 }
  79
  80 static void ppc_heathrow_reset(void *opaque)
  81 {
  82     PowerPCCPU *cpu = opaque;
  83
  84     cpu_reset(CPU(cpu));
  85 }
  86
  87 static void ppc_heathrow_init(MachineState *machine)
  88 {
  89     const char *bios_name = machine->firmware ?: PROM_FILENAME;
  90     PowerPCCPU *cpu = NULL;
  91     CPUPPCState *env = NULL;
  92     char *filename;
  93     int i, bios_size = -1;
  94     MemoryRegion *bios = g_new(MemoryRegion, 1);
  95     uint64_t bios_addr;
  96     uint32_t kernel_base = 0, initrd_base = 0, cmdline_base = 0;
  97     int32_t kernel_size = 0, initrd_size = 0;
  98     PCIBus *pci_bus;
  99     Object *macio;
 100     MACIOIDEState *macio_ide;
 101     SysBusDevice *s;
 102     DeviceState *dev, *pic_dev, *grackle_dev;
 103     BusState *adb_bus;
 104     uint16_t ppc_boot_device;
 105     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 106     void *fw_cfg;
 107     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
 108
 109     /* init CPUs */
 110     for (i = 0; i < machine->smp.cpus; i++) {
 111         cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 112         env = &cpu->env;
 113
 114         /* Set time-base frequency to 16.6 Mhz */
 115         cpu_ppc_tb_init(env,  TBFREQ);
 116         qemu_register_reset(ppc_heathrow_reset, cpu);
 117     }
 118
 119     /* allocate RAM */
 120     if (machine->ram_size > 2047 * MiB) {
 121         error_report("Too much memory for this machine: %" PRId64 " MB, "
 122                      "maximum 2047 MB", machine->ram_size / MiB);
 123         exit(1);
 124     }
 125
 126     memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 127
 128     /* allocate and load firmware ROM */
 129     memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
 130                            &error_fatal);
 131     memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
 132
 133     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 134     if (filename) {
 135         /* Load OpenBIOS (ELF) */
 136         bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 137                              NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 138         /* Unfortunately, load_elf sign-extends reading elf32 */
 139         bios_addr = (uint32_t)bios_addr;
 140
 141         if (bios_size <= 0) {
 142             /* or if could not load ELF try loading a binary ROM image */
 143             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 144             bios_addr = PROM_BASE;
 145         }
 146         g_free(filename);
 147     }
 148     if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 149         error_report("could not load PowerPC bios '%s'", bios_name);
 150         exit(1);
 151     }
 152
 153     if (machine->kernel_filename) {
 154         int bswap_needed = 0;
 155
 156 #ifdef BSWAP_NEEDED
 157         bswap_needed = 1;
 158 #endif
 159         kernel_base = KERNEL_LOAD_ADDR;
 160         kernel_size = load_elf(machine->kernel_filename, NULL,
 161                                translate_kernel_address, NULL, NULL, NULL,
 162                                NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 163         if (kernel_size < 0) {
 164             kernel_size = load_aout(machine->kernel_filename, kernel_base,
 165                                     machine->ram_size - kernel_base,
 166                                     bswap_needed, TARGET_PAGE_SIZE);
 167         }
 168         if (kernel_size < 0) {
 169             kernel_size = load_image_targphys(machine->kernel_filename,
 170                                               kernel_base,
 171                                               machine->ram_size - kernel_base);
 172         }
 173         if (kernel_size < 0) {
 174             error_report("could not load kernel '%s'",
 175                          machine->kernel_filename);
 176             exit(1);
 177         }
 178         /* load initrd */
 179         if (machine->initrd_filename) {
 180             initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 181                                             KERNEL_GAP);
 182             initrd_size = load_image_targphys(machine->initrd_filename,
 183                                               initrd_base,
 184                                               machine->ram_size - initrd_base);
 185             if (initrd_size < 0) {
 186                 error_report("could not load initial ram disk '%s'",
 187                              machine->initrd_filename);
 188                 exit(1);
 189             }
 190             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 191         } else {
 192             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 193         }
 194         ppc_boot_device = 'm';
 195     } else {
 196         ppc_boot_device = '\0';
 197         for (i = 0; machine->boot_config.order[i] != '\0'; i++) {
 198             /*
 199              * TOFIX: for now, the second IDE channel is not properly
 200              *        used by OHW. The Mac floppy disk are not emulated.
 201              *        For now, OHW cannot boot from the network.
 202              */
 203 #if 0
 204             if (machine->boot_config.order[i] >= 'a' &&
 205                 machine->boot_config.order[i] <= 'f') {
 206                 ppc_boot_device = machine->boot_config.order[i];
 207                 break;
 208             }
 209 #else
 210             if (machine->boot_config.order[i] >= 'c' &&
 211                 machine->boot_config.order[i] <= 'd') {
 212                 ppc_boot_device = machine->boot_config.order[i];
 213                 break;
 214             }
 215 #endif
 216         }
 217         if (ppc_boot_device == '\0') {
 218             error_report("No valid boot device for G3 Beige machine");
 219             exit(1);
 220         }
 221     }
 222
 223     /* Grackle PCI host bridge */
 224     grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 225     qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 226     s = SYS_BUS_DEVICE(grackle_dev);
 227     sysbus_realize_and_unref(s, &error_fatal);
 228
 229     sysbus_mmio_map(s, 0, GRACKLE_BASE);
 230     sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 231     /* PCI hole */
 232     memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 233                                 sysbus_mmio_get_region(s, 2));
 234     /* Register 2 MB of ISA IO space */
 235     memory_region_add_subregion(get_system_memory(), 0xfe000000,
 236                                 sysbus_mmio_get_region(s, 3));
 237
 238     pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 239
 240     /* MacIO */
 241     macio = OBJECT(pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO));
 242     qdev_prop_set_uint64(DEVICE(macio), "frequency", tbfreq);
 243
 244     dev = DEVICE(object_resolve_path_component(macio, "escc"));
 245     qdev_prop_set_chr(dev, "chrA", serial_hd(0));
 246     qdev_prop_set_chr(dev, "chrB", serial_hd(1));
 247
 248     pci_realize_and_unref(PCI_DEVICE(macio), pci_bus, &error_fatal);
 249
 250     pic_dev = DEVICE(object_resolve_path_component(macio, "pic"));
 251     for (i = 0; i < 4; i++) {
 252         qdev_connect_gpio_out(grackle_dev, i,
 253                               qdev_get_gpio_in(pic_dev, 0x15 + i));
 254     }
 255
 256     /* Connect the heathrow PIC outputs to the 6xx bus */
 257     for (i = 0; i < machine->smp.cpus; i++) {
 258         switch (PPC_INPUT(env)) {
 259         case PPC_FLAGS_INPUT_6xx:
 260             /* XXX: we register only 1 output pin for heathrow PIC */
 261             qdev_connect_gpio_out(pic_dev, 0,
 262                               qdev_get_gpio_in(DEVICE(cpu), PPC6xx_INPUT_INT));
 263             break;
 264         default:
 265             error_report("Bus model not supported on OldWorld Mac machine");
 266             exit(1);
 267         }
 268     }
 269
 270     pci_vga_init(pci_bus);
 271
 272     for (i = 0; i < nb_nics; i++) {
 273         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 274     }
 275
 276     /* MacIO IDE */
 277     ide_drive_get(hd, ARRAY_SIZE(hd));
 278     macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[0]"));
 279     macio_ide_init_drives(macio_ide, hd);
 280
 281     macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[1]"));
 282     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 283
 284     /* MacIO CUDA/ADB */
 285     dev = DEVICE(object_resolve_path_component(macio, "cuda"));
 286     adb_bus = qdev_get_child_bus(dev, "adb.0");
 287     dev = qdev_new(TYPE_ADB_KEYBOARD);
 288     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 289     dev = qdev_new(TYPE_ADB_MOUSE);
 290     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 291
 292     if (machine_usb(machine)) {
 293         pci_create_simple(pci_bus, -1, "pci-ohci");
 294     }
 295
 296     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) {
 297         graphic_depth = 15;
 298     }
 299
 300     /* No PCI init: the BIOS will do it */
 301
 302     dev = qdev_new(TYPE_FW_CFG_MEM);
 303     fw_cfg = FW_CFG(dev);
 304     qdev_prop_set_uint32(dev, "data_width", 1);
 305     qdev_prop_set_bit(dev, "dma_enabled", false);
 306     object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 307                               OBJECT(fw_cfg));
 308     s = SYS_BUS_DEVICE(dev);
 309     sysbus_realize_and_unref(s, &error_fatal);
 310     sysbus_mmio_map(s, 0, CFG_ADDR);
 311     sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 312
 313     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)machine->smp.cpus);
 314     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 315     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size);
 316     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 317     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 318     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 319     if (machine->kernel_cmdline) {
 320         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 321         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 322                          machine->kernel_cmdline);
 323     } else {
 324         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 325     }
 326     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 327     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 328     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 329
 330     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 331     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 332     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 333
 334     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 335     if (kvm_enabled()) {
 336         uint8_t *hypercall;
 337
 338         hypercall = g_malloc(16);
 339         kvmppc_get_hypercall(env, hypercall, 16);
 340         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 341         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 342     }
 343     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 344     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 345     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 346     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 347
 348     /* MacOS NDRV VGA driver */
 349     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 350     if (filename) {
 351         gchar *ndrv_file;
 352         gsize ndrv_size;
 353
 354         if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 355             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 356         }
 357         g_free(filename);
 358     }
 359
 360     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 361 }
 362
 363 /*
 364  * Implementation of an interface to adjust firmware path
 365  * for the bootindex property handling.
 366  */
 367 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 368                                   DeviceState *dev)
 369 {
 370     PCIDevice *pci;
 371     MACIOIDEState *macio_ide;
 372
 373     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 374         pci = PCI_DEVICE(dev);
 375         return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 376     }
 377
 378     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 379         macio_ide = MACIO_IDE(dev);
 380         return g_strdup_printf("ata-3@%x", macio_ide->addr);
 381     }
 382
 383     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 384         return g_strdup("disk");
 385     }
 386
 387     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 388         return g_strdup("cdrom");
 389     }
 390
 391     if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 392         return g_strdup("disk");
 393     }
 394
 395     return NULL;
 396 }
 397
 398 static int heathrow_kvm_type(MachineState *machine, const char *arg)
 399 {
 400     /* Always force PR KVM */
 401     return 2;
 402 }
 403
 404 static void heathrow_class_init(ObjectClass *oc, void *data)
 405 {
 406     MachineClass *mc = MACHINE_CLASS(oc);
 407     FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 408
 409     mc->desc = "Heathrow based PowerMAC";
 410     mc->init = ppc_heathrow_init;
 411     mc->block_default_type = IF_IDE;
 412     /* SMP is not supported currently */
 413     mc->max_cpus = 1;
 414 #ifndef TARGET_PPC64
 415     mc->is_default = true;
 416 #endif
 417     /* TOFIX "cad" when Mac floppy is implemented */
 418     mc->default_boot_order = "cd";
 419     mc->kvm_type = heathrow_kvm_type;
 420     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 421     mc->default_display = "std";
 422     mc->ignore_boot_device_suffixes = true;
 423     mc->default_ram_id = "ppc_heathrow.ram";
 424     fwc->get_dev_path = heathrow_fw_dev_path;
 425 }
 426
 427 static const TypeInfo ppc_heathrow_machine_info = {
 428     .name          = MACHINE_TYPE_NAME("g3beige"),
 429     .parent        = TYPE_MACHINE,
 430     .class_init    = heathrow_class_init,
 431     .interfaces = (InterfaceInfo[]) {
 432         { TYPE_FW_PATH_PROVIDER },
 433         { }
 434     },
 435 };
 436
 437 static void ppc_heathrow_register_types(void)
 438 {
 439     type_register_static(&ppc_heathrow_machine_info);
 440 }
 441
 442 type_init(ppc_heathrow_register_types);