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 #include "qemu/osdep.h"
  27 #include "qapi/error.h"
  28 #include "hw/hw.h"
  29 #include "hw/ppc/ppc.h"
  30 #include "mac.h"
  31 #include "hw/input/adb.h"
  32 #include "hw/timer/m48t59.h"
  33 #include "sysemu/sysemu.h"
  34 #include "net/net.h"
  35 #include "hw/isa/isa.h"
  36 #include "hw/pci/pci.h"
  37 #include "hw/boards.h"
  38 #include "hw/nvram/fw_cfg.h"
  39 #include "hw/char/escc.h"
  40 #include "hw/ide.h"
  41 #include "hw/loader.h"
  42 #include "elf.h"
  43 #include "qemu/error-report.h"
  44 #include "sysemu/kvm.h"
  45 #include "kvm_ppc.h"
  46 #include "sysemu/block-backend.h"
  47 #include "exec/address-spaces.h"
  48 #include "qemu/cutils.h"
  49
  50 #define MAX_IDE_BUS 2
  51 #define CFG_ADDR 0xf0000510
  52 #define TBFREQ 16600000UL
  53 #define CLOCKFREQ 266000000UL
  54 #define BUSFREQ 66000000UL
  55
  56 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  57
  58 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  59                             Error **errp)
  60 {
  61     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  62 }
  63
  64 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  65 {
  66     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  67 }
  68
  69 static void ppc_heathrow_reset(void *opaque)
  70 {
  71     PowerPCCPU *cpu = opaque;
  72
  73     cpu_reset(CPU(cpu));
  74 }
  75
  76 static void ppc_heathrow_init(MachineState *machine)
  77 {
  78     ram_addr_t ram_size = machine->ram_size;
  79     const char *kernel_filename = machine->kernel_filename;
  80     const char *kernel_cmdline = machine->kernel_cmdline;
  81     const char *initrd_filename = machine->initrd_filename;
  82     const char *boot_device = machine->boot_order;
  83     MemoryRegion *sysmem = get_system_memory();
  84     PowerPCCPU *cpu = NULL;
  85     CPUPPCState *env = NULL;
  86     char *filename;
  87     qemu_irq *pic, **heathrow_irqs;
  88     int linux_boot, i;
  89     MemoryRegion *ram = g_new(MemoryRegion, 1);
  90     MemoryRegion *bios = g_new(MemoryRegion, 1);
  91     MemoryRegion *isa = g_new(MemoryRegion, 1);
  92     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  93     int32_t kernel_size, initrd_size;
  94     PCIBus *pci_bus;
  95     PCIDevice *macio;
  96     MACIOIDEState *macio_ide;
  97     DeviceState *dev;
  98     BusState *adb_bus;
  99     int bios_size, ndrv_size;
 100     uint8_t *ndrv_file;
 101     MemoryRegion *pic_mem;
 102     uint16_t ppc_boot_device;
 103     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 104     void *fw_cfg;
 105     uint64_t tbfreq;
 106
 107     linux_boot = (kernel_filename != NULL);
 108
 109     /* init CPUs */
 110     for (i = 0; i < 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 (ram_size > (2047 << 20)) {
 121         fprintf(stderr,
 122                 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 123                 ((unsigned int)ram_size / (1 << 20)));
 124         exit(1);
 125     }
 126
 127     memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 128                                          ram_size);
 129     memory_region_add_subregion(sysmem, 0, ram);
 130
 131     /* allocate and load BIOS */
 132     memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 133                            &error_fatal);
 134
 135     if (bios_name == NULL)
 136         bios_name = PROM_FILENAME;
 137     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 138     memory_region_set_readonly(bios, true);
 139     memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 140
 141     /* Load OpenBIOS (ELF) */
 142     if (filename) {
 143         bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 144                              1, PPC_ELF_MACHINE, 0, 0);
 145         g_free(filename);
 146     } else {
 147         bios_size = -1;
 148     }
 149     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 150         error_report("could not load PowerPC bios '%s'", bios_name);
 151         exit(1);
 152     }
 153
 154     if (linux_boot) {
 155         uint64_t lowaddr = 0;
 156         int bswap_needed;
 157
 158 #ifdef BSWAP_NEEDED
 159         bswap_needed = 1;
 160 #else
 161         bswap_needed = 0;
 162 #endif
 163         kernel_base = KERNEL_LOAD_ADDR;
 164         kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 165                                NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 166                                0, 0);
 167         if (kernel_size < 0)
 168             kernel_size = load_aout(kernel_filename, kernel_base,
 169                                     ram_size - kernel_base, bswap_needed,
 170                                     TARGET_PAGE_SIZE);
 171         if (kernel_size < 0)
 172             kernel_size = load_image_targphys(kernel_filename,
 173                                               kernel_base,
 174                                               ram_size - kernel_base);
 175         if (kernel_size < 0) {
 176             error_report("could not load kernel '%s'", kernel_filename);
 177             exit(1);
 178         }
 179         /* load initrd */
 180         if (initrd_filename) {
 181             initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 182             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 183                                               ram_size - initrd_base);
 184             if (initrd_size < 0) {
 185                 error_report("could not load initial ram disk '%s'",
 186                              initrd_filename);
 187                 exit(1);
 188             }
 189             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 190         } else {
 191             initrd_base = 0;
 192             initrd_size = 0;
 193             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 194         }
 195         ppc_boot_device = 'm';
 196     } else {
 197         kernel_base = 0;
 198         kernel_size = 0;
 199         initrd_base = 0;
 200         initrd_size = 0;
 201         ppc_boot_device = '\0';
 202         for (i = 0; boot_device[i] != '\0'; i++) {
 203             /* TOFIX: for now, the second IDE channel is not properly
 204              *        used by OHW. The Mac floppy disk are not emulated.
 205              *        For now, OHW cannot boot from the network.
 206              */
 207 #if 0
 208             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 209                 ppc_boot_device = boot_device[i];
 210                 break;
 211             }
 212 #else
 213             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 214                 ppc_boot_device = boot_device[i];
 215                 break;
 216             }
 217 #endif
 218         }
 219         if (ppc_boot_device == '\0') {
 220             error_report("No valid boot device for G3 Beige machine");
 221             exit(1);
 222         }
 223     }
 224
 225     /* Register 2 MB of ISA IO space */
 226     memory_region_init_alias(isa, NULL, "isa_mmio",
 227                              get_system_io(), 0, 0x00200000);
 228     memory_region_add_subregion(sysmem, 0xfe000000, isa);
 229
 230     /* XXX: we register only 1 output pin for heathrow PIC */
 231     heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 232     heathrow_irqs[0] =
 233         g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 234     /* Connect the heathrow PIC outputs to the 6xx bus */
 235     for (i = 0; i < smp_cpus; i++) {
 236         switch (PPC_INPUT(env)) {
 237         case PPC_FLAGS_INPUT_6xx:
 238             heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 239             heathrow_irqs[i][0] =
 240                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 241             break;
 242         default:
 243             error_report("Bus model not supported on OldWorld Mac machine");
 244             exit(1);
 245         }
 246     }
 247
 248     /* Timebase Frequency */
 249     if (kvm_enabled()) {
 250         tbfreq = kvmppc_get_tbfreq();
 251     } else {
 252         tbfreq = TBFREQ;
 253     }
 254
 255     /* init basic PC hardware */
 256     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 257         error_report("Only 6xx bus is supported on heathrow machine");
 258         exit(1);
 259     }
 260     pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
 261     pci_bus = pci_grackle_init(0xfec00000, pic,
 262                                get_system_memory(),
 263                                get_system_io());
 264     pci_vga_init(pci_bus);
 265
 266     for (i = 0; i < nb_nics; i++) {
 267         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 268     }
 269
 270     ide_drive_get(hd, ARRAY_SIZE(hd));
 271
 272     /* MacIO */
 273     macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 274     dev = DEVICE(macio);
 275     qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 276     qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */
 277     qdev_connect_gpio_out(dev, 2, pic[0x0F]); /* ESCC-A */
 278     qdev_connect_gpio_out(dev, 3, pic[0x0D]); /* IDE-0 */
 279     qdev_connect_gpio_out(dev, 4, pic[0x02]); /* IDE-0 DMA */
 280     qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */
 281     qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */
 282     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 283     macio_init(macio, pic_mem);
 284
 285     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 286                                                         "ide[0]"));
 287     macio_ide_init_drives(macio_ide, hd);
 288
 289     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 290                                                         "ide[1]"));
 291     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 292
 293     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 294     adb_bus = qdev_get_child_bus(dev, "adb.0");
 295     dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 296     qdev_init_nofail(dev);
 297     dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 298     qdev_init_nofail(dev);
 299
 300     if (machine_usb(machine)) {
 301         pci_create_simple(pci_bus, -1, "pci-ohci");
 302     }
 303
 304     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 305         graphic_depth = 15;
 306
 307     /* No PCI init: the BIOS will do it */
 308
 309     fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 310     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 311     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 312     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 313     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 314     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 315     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 316     if (kernel_cmdline) {
 317         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 318         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 319     } else {
 320         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 321     }
 322     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 323     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 324     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 325
 326     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 327     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 328     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 329
 330     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 331     if (kvm_enabled()) {
 332 #ifdef CONFIG_KVM
 333         uint8_t *hypercall;
 334
 335         hypercall = g_malloc(16);
 336         kvmppc_get_hypercall(env, hypercall, 16);
 337         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 338         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 339 #endif
 340     }
 341     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 342     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 343     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 344     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 345
 346     /* MacOS NDRV VGA driver */
 347     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 348     if (filename) {
 349         ndrv_size = get_image_size(filename);
 350         if (ndrv_size != -1) {
 351             ndrv_file = g_malloc(ndrv_size);
 352             ndrv_size = load_image(filename, ndrv_file);
 353
 354             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 355         }
 356         g_free(filename);
 357     }
 358
 359     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 360 }
 361
 362 static int heathrow_kvm_type(const char *arg)
 363 {
 364     /* Always force PR KVM */
 365     return 2;
 366 }
 367
 368 static void heathrow_class_init(ObjectClass *oc, void *data)
 369 {
 370     MachineClass *mc = MACHINE_CLASS(oc);
 371
 372     mc->desc = "Heathrow based PowerMAC";
 373     mc->init = ppc_heathrow_init;
 374     mc->block_default_type = IF_IDE;
 375     mc->max_cpus = MAX_CPUS;
 376 #ifndef TARGET_PPC64
 377     mc->is_default = 1;
 378 #endif
 379     /* TOFIX "cad" when Mac floppy is implemented */
 380     mc->default_boot_order = "cd";
 381     mc->kvm_type = heathrow_kvm_type;
 382     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 383 }
 384
 385 static const TypeInfo ppc_heathrow_machine_info = {
 386     .name          = MACHINE_TYPE_NAME("g3beige"),
 387     .parent        = TYPE_MACHINE,
 388     .class_init    = heathrow_class_init
 389 };
 390
 391 static void ppc_heathrow_register_types(void)
 392 {
 393     type_register_static(&ppc_heathrow_machine_info);
 394 }
 395
 396 type_init(ppc_heathrow_register_types);