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-common.h" 29 #include "qemu/datadir.h" 30 #include "qemu/units.h" 31 #include "qapi/error.h" 32 #include "hw/ppc/ppc.h" 33 #include "hw/qdev-properties.h" 34 #include "mac.h" 35 #include "hw/input/adb.h" 36 #include "sysemu/sysemu.h" 37 #include "net/net.h" 38 #include "hw/isa/isa.h" 39 #include "hw/pci/pci.h" 40 #include "hw/pci/pci_host.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 GRACKLE_BASE 0xfec00000 61 #define PROM_BASE 0xffc00000 62 #define PROM_SIZE (4 * MiB) 63 64 static void fw_cfg_boot_set(void *opaque, const char *boot_device, 65 Error **errp) 66 { 67 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); 68 } 69 70 static uint64_t translate_kernel_address(void *opaque, uint64_t addr) 71 { 72 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; 73 } 74 75 static void ppc_heathrow_reset(void *opaque) 76 { 77 PowerPCCPU *cpu = opaque; 78 79 cpu_reset(CPU(cpu)); 80 } 81 82 static void ppc_heathrow_init(MachineState *machine) 83 { 84 ram_addr_t ram_size = machine->ram_size; 85 const char *bios_name = machine->firmware ?: PROM_FILENAME; 86 const char *boot_device = machine->boot_order; 87 PowerPCCPU *cpu = NULL; 88 CPUPPCState *env = NULL; 89 char *filename; 90 int i; 91 MemoryRegion *bios = 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 ESCCState *escc; 98 SysBusDevice *s; 99 DeviceState *dev, *pic_dev, *grackle_dev; 100 BusState *adb_bus; 101 uint64_t bios_addr; 102 int bios_size; 103 unsigned int smp_cpus = machine->smp.cpus; 104 uint16_t ppc_boot_device; 105 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 106 void *fw_cfg; 107 uint64_t tbfreq; 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 * MiB) { 121 error_report("Too much memory for this machine: %" PRId64 " MB, " 122 "maximum 2047 MB", 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 } else { 148 bios_size = -1; 149 } 150 if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) { 151 error_report("could not load PowerPC bios '%s'", bios_name); 152 exit(1); 153 } 154 155 if (machine->kernel_filename) { 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(machine->kernel_filename, NULL, 165 translate_kernel_address, NULL, NULL, NULL, 166 NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0); 167 if (kernel_size < 0) 168 kernel_size = load_aout(machine->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(machine->kernel_filename, 173 kernel_base, 174 ram_size - kernel_base); 175 if (kernel_size < 0) { 176 error_report("could not load kernel '%s'", 177 machine->kernel_filename); 178 exit(1); 179 } 180 /* load initrd */ 181 if (machine->initrd_filename) { 182 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + 183 KERNEL_GAP); 184 initrd_size = load_image_targphys(machine->initrd_filename, 185 initrd_base, 186 ram_size - initrd_base); 187 if (initrd_size < 0) { 188 error_report("could not load initial ram disk '%s'", 189 machine->initrd_filename); 190 exit(1); 191 } 192 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 193 } else { 194 initrd_base = 0; 195 initrd_size = 0; 196 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 197 } 198 ppc_boot_device = 'm'; 199 } else { 200 kernel_base = 0; 201 kernel_size = 0; 202 initrd_base = 0; 203 initrd_size = 0; 204 ppc_boot_device = '\0'; 205 for (i = 0; boot_device[i] != '\0'; i++) { 206 /* TOFIX: for now, the second IDE channel is not properly 207 * used by OHW. The Mac floppy disk are not emulated. 208 * For now, OHW cannot boot from the network. 209 */ 210 #if 0 211 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 212 ppc_boot_device = boot_device[i]; 213 break; 214 } 215 #else 216 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { 217 ppc_boot_device = boot_device[i]; 218 break; 219 } 220 #endif 221 } 222 if (ppc_boot_device == '\0') { 223 error_report("No valid boot device for G3 Beige machine"); 224 exit(1); 225 } 226 } 227 228 /* Timebase Frequency */ 229 if (kvm_enabled()) { 230 tbfreq = kvmppc_get_tbfreq(); 231 } else { 232 tbfreq = TBFREQ; 233 } 234 235 /* Grackle PCI host bridge */ 236 grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE); 237 qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000); 238 s = SYS_BUS_DEVICE(grackle_dev); 239 sysbus_realize_and_unref(s, &error_fatal); 240 241 sysbus_mmio_map(s, 0, GRACKLE_BASE); 242 sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000); 243 /* PCI hole */ 244 memory_region_add_subregion(get_system_memory(), 0x80000000ULL, 245 sysbus_mmio_get_region(s, 2)); 246 /* Register 2 MB of ISA IO space */ 247 memory_region_add_subregion(get_system_memory(), 0xfe000000, 248 sysbus_mmio_get_region(s, 3)); 249 250 pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus; 251 252 /* MacIO */ 253 macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO); 254 dev = DEVICE(macio); 255 qdev_prop_set_uint64(dev, "frequency", tbfreq); 256 257 escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc")); 258 qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0)); 259 qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1)); 260 261 pci_realize_and_unref(macio, pci_bus, &error_fatal); 262 263 pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic")); 264 for (i = 0; i < 4; i++) { 265 qdev_connect_gpio_out(grackle_dev, i, 266 qdev_get_gpio_in(pic_dev, 0x15 + i)); 267 } 268 269 /* Connect the heathrow PIC outputs to the 6xx bus */ 270 for (i = 0; i < smp_cpus; i++) { 271 switch (PPC_INPUT(env)) { 272 case PPC_FLAGS_INPUT_6xx: 273 /* XXX: we register only 1 output pin for heathrow PIC */ 274 qdev_connect_gpio_out(pic_dev, 0, 275 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]); 276 break; 277 default: 278 error_report("Bus model not supported on OldWorld Mac machine"); 279 exit(1); 280 } 281 } 282 283 pci_vga_init(pci_bus); 284 285 for (i = 0; i < nb_nics; i++) { 286 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 287 } 288 289 /* MacIO IDE */ 290 ide_drive_get(hd, ARRAY_SIZE(hd)); 291 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 292 "ide[0]")); 293 macio_ide_init_drives(macio_ide, hd); 294 295 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 296 "ide[1]")); 297 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 298 299 /* MacIO CUDA/ADB */ 300 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 301 adb_bus = qdev_get_child_bus(dev, "adb.0"); 302 dev = qdev_new(TYPE_ADB_KEYBOARD); 303 qdev_realize_and_unref(dev, adb_bus, &error_fatal); 304 dev = qdev_new(TYPE_ADB_MOUSE); 305 qdev_realize_and_unref(dev, adb_bus, &error_fatal); 306 307 if (machine_usb(machine)) { 308 pci_create_simple(pci_bus, -1, "pci-ohci"); 309 } 310 311 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) 312 graphic_depth = 15; 313 314 /* No PCI init: the BIOS will do it */ 315 316 dev = qdev_new(TYPE_FW_CFG_MEM); 317 fw_cfg = FW_CFG(dev); 318 qdev_prop_set_uint32(dev, "data_width", 1); 319 qdev_prop_set_bit(dev, "dma_enabled", false); 320 object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG, 321 OBJECT(fw_cfg)); 322 s = SYS_BUS_DEVICE(dev); 323 sysbus_realize_and_unref(s, &error_fatal); 324 sysbus_mmio_map(s, 0, CFG_ADDR); 325 sysbus_mmio_map(s, 1, CFG_ADDR + 2); 326 327 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); 328 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus); 329 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); 330 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 331 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 332 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 333 if (machine->kernel_cmdline) { 334 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 335 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, 336 machine->kernel_cmdline); 337 } else { 338 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); 339 } 340 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 341 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 342 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); 343 344 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 345 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 346 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 347 348 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 349 if (kvm_enabled()) { 350 uint8_t *hypercall; 351 352 hypercall = g_malloc(16); 353 kvmppc_get_hypercall(env, hypercall, 16); 354 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 355 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 356 } 357 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); 358 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ 359 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); 360 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); 361 362 /* MacOS NDRV VGA driver */ 363 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME); 364 if (filename) { 365 gchar *ndrv_file; 366 gsize ndrv_size; 367 368 if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) { 369 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size); 370 } 371 g_free(filename); 372 } 373 374 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 375 } 376 377 /* 378 * Implementation of an interface to adjust firmware path 379 * for the bootindex property handling. 380 */ 381 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus, 382 DeviceState *dev) 383 { 384 PCIDevice *pci; 385 MACIOIDEState *macio_ide; 386 387 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) { 388 pci = PCI_DEVICE(dev); 389 return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn)); 390 } 391 392 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) { 393 macio_ide = MACIO_IDE(dev); 394 return g_strdup_printf("ata-3@%x", macio_ide->addr); 395 } 396 397 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) { 398 return g_strdup("disk"); 399 } 400 401 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) { 402 return g_strdup("cdrom"); 403 } 404 405 if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) { 406 return g_strdup("disk"); 407 } 408 409 return NULL; 410 } 411 412 static int heathrow_kvm_type(MachineState *machine, const char *arg) 413 { 414 /* Always force PR KVM */ 415 return 2; 416 } 417 418 static void heathrow_class_init(ObjectClass *oc, void *data) 419 { 420 MachineClass *mc = MACHINE_CLASS(oc); 421 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc); 422 423 mc->desc = "Heathrow based PowerMAC"; 424 mc->init = ppc_heathrow_init; 425 mc->block_default_type = IF_IDE; 426 /* SMP is not supported currently */ 427 mc->max_cpus = 1; 428 #ifndef TARGET_PPC64 429 mc->is_default = true; 430 #endif 431 /* TOFIX "cad" when Mac floppy is implemented */ 432 mc->default_boot_order = "cd"; 433 mc->kvm_type = heathrow_kvm_type; 434 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 435 mc->default_display = "std"; 436 mc->ignore_boot_device_suffixes = true; 437 mc->default_ram_id = "ppc_heathrow.ram"; 438 fwc->get_dev_path = heathrow_fw_dev_path; 439 } 440 441 static const TypeInfo ppc_heathrow_machine_info = { 442 .name = MACHINE_TYPE_NAME("g3beige"), 443 .parent = TYPE_MACHINE, 444 .class_init = heathrow_class_init, 445 .interfaces = (InterfaceInfo[]) { 446 { TYPE_FW_PATH_PROVIDER }, 447 { } 448 }, 449 }; 450 451 static void ppc_heathrow_register_types(void) 452 { 453 type_register_static(&ppc_heathrow_machine_info); 454 } 455 456 type_init(ppc_heathrow_register_types); 457