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/units.h" 30 #include "qapi/error.h" 31 #include "hw/ppc/ppc.h" 32 #include "hw/qdev-properties.h" 33 #include "mac.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/boards.h" 41 #include "hw/nvram/fw_cfg.h" 42 #include "hw/char/escc.h" 43 #include "hw/misc/macio/macio.h" 44 #include "hw/ide.h" 45 #include "hw/loader.h" 46 #include "hw/fw-path-provider.h" 47 #include "elf.h" 48 #include "qemu/error-report.h" 49 #include "sysemu/kvm.h" 50 #include "sysemu/reset.h" 51 #include "kvm_ppc.h" 52 #include "exec/address-spaces.h" 53 54 #define MAX_IDE_BUS 2 55 #define CFG_ADDR 0xf0000510 56 #define TBFREQ 16600000UL 57 #define CLOCKFREQ 266000000UL 58 #define BUSFREQ 66000000UL 59 60 #define NDRV_VGA_FILENAME "qemu_vga.ndrv" 61 62 #define GRACKLE_BASE 0xfec00000 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 *kernel_filename = machine->kernel_filename; 86 const char *kernel_cmdline = machine->kernel_cmdline; 87 const char *initrd_filename = machine->initrd_filename; 88 const char *boot_device = machine->boot_order; 89 MemoryRegion *sysmem = get_system_memory(); 90 PowerPCCPU *cpu = NULL; 91 CPUPPCState *env = NULL; 92 char *filename; 93 int linux_boot, i; 94 MemoryRegion *ram = g_new(MemoryRegion, 1); 95 MemoryRegion *bios = g_new(MemoryRegion, 1); 96 uint32_t kernel_base, initrd_base, cmdline_base = 0; 97 int32_t kernel_size, initrd_size; 98 PCIBus *pci_bus; 99 OldWorldMacIOState *macio; 100 MACIOIDEState *macio_ide; 101 SysBusDevice *s; 102 DeviceState *dev, *pic_dev; 103 BusState *adb_bus; 104 int bios_size; 105 unsigned int smp_cpus = machine->smp.cpus; 106 uint16_t ppc_boot_device; 107 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 108 void *fw_cfg; 109 uint64_t tbfreq; 110 111 linux_boot = (kernel_filename != NULL); 112 113 /* init CPUs */ 114 for (i = 0; i < smp_cpus; i++) { 115 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 116 env = &cpu->env; 117 118 /* Set time-base frequency to 16.6 Mhz */ 119 cpu_ppc_tb_init(env, TBFREQ); 120 qemu_register_reset(ppc_heathrow_reset, cpu); 121 } 122 123 /* allocate RAM */ 124 if (ram_size > 2047 * MiB) { 125 error_report("Too much memory for this machine: %" PRId64 " MB, " 126 "maximum 2047 MB", ram_size / MiB); 127 exit(1); 128 } 129 130 memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram", 131 ram_size); 132 memory_region_add_subregion(sysmem, 0, ram); 133 134 /* allocate and load BIOS */ 135 memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, 136 &error_fatal); 137 138 if (bios_name == NULL) 139 bios_name = PROM_FILENAME; 140 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 141 memory_region_set_readonly(bios, true); 142 memory_region_add_subregion(sysmem, PROM_ADDR, bios); 143 144 /* Load OpenBIOS (ELF) */ 145 if (filename) { 146 bios_size = load_elf(filename, NULL, 0, NULL, NULL, NULL, NULL, NULL, 147 1, PPC_ELF_MACHINE, 0, 0); 148 g_free(filename); 149 } else { 150 bios_size = -1; 151 } 152 if (bios_size < 0 || bios_size > BIOS_SIZE) { 153 error_report("could not load PowerPC bios '%s'", bios_name); 154 exit(1); 155 } 156 157 if (linux_boot) { 158 uint64_t lowaddr = 0; 159 int bswap_needed; 160 161 #ifdef BSWAP_NEEDED 162 bswap_needed = 1; 163 #else 164 bswap_needed = 0; 165 #endif 166 kernel_base = KERNEL_LOAD_ADDR; 167 kernel_size = load_elf(kernel_filename, NULL, 168 translate_kernel_address, NULL, 169 NULL, &lowaddr, NULL, NULL, 1, PPC_ELF_MACHINE, 170 0, 0); 171 if (kernel_size < 0) 172 kernel_size = load_aout(kernel_filename, kernel_base, 173 ram_size - kernel_base, bswap_needed, 174 TARGET_PAGE_SIZE); 175 if (kernel_size < 0) 176 kernel_size = load_image_targphys(kernel_filename, 177 kernel_base, 178 ram_size - kernel_base); 179 if (kernel_size < 0) { 180 error_report("could not load kernel '%s'", kernel_filename); 181 exit(1); 182 } 183 /* load initrd */ 184 if (initrd_filename) { 185 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 186 initrd_size = load_image_targphys(initrd_filename, initrd_base, 187 ram_size - initrd_base); 188 if (initrd_size < 0) { 189 error_report("could not load initial ram disk '%s'", 190 initrd_filename); 191 exit(1); 192 } 193 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 194 } else { 195 initrd_base = 0; 196 initrd_size = 0; 197 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 198 } 199 ppc_boot_device = 'm'; 200 } else { 201 kernel_base = 0; 202 kernel_size = 0; 203 initrd_base = 0; 204 initrd_size = 0; 205 ppc_boot_device = '\0'; 206 for (i = 0; boot_device[i] != '\0'; i++) { 207 /* TOFIX: for now, the second IDE channel is not properly 208 * used by OHW. The Mac floppy disk are not emulated. 209 * For now, OHW cannot boot from the network. 210 */ 211 #if 0 212 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 213 ppc_boot_device = boot_device[i]; 214 break; 215 } 216 #else 217 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { 218 ppc_boot_device = boot_device[i]; 219 break; 220 } 221 #endif 222 } 223 if (ppc_boot_device == '\0') { 224 error_report("No valid boot device for G3 Beige machine"); 225 exit(1); 226 } 227 } 228 229 /* XXX: we register only 1 output pin for heathrow PIC */ 230 pic_dev = qdev_create(NULL, TYPE_HEATHROW); 231 qdev_init_nofail(pic_dev); 232 233 /* Connect the heathrow PIC outputs to the 6xx bus */ 234 for (i = 0; i < smp_cpus; i++) { 235 switch (PPC_INPUT(env)) { 236 case PPC_FLAGS_INPUT_6xx: 237 qdev_connect_gpio_out(pic_dev, 0, 238 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]); 239 break; 240 default: 241 error_report("Bus model not supported on OldWorld Mac machine"); 242 exit(1); 243 } 244 } 245 246 /* Timebase Frequency */ 247 if (kvm_enabled()) { 248 tbfreq = kvmppc_get_tbfreq(); 249 } else { 250 tbfreq = TBFREQ; 251 } 252 253 /* init basic PC hardware */ 254 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 255 error_report("Only 6xx bus is supported on heathrow machine"); 256 exit(1); 257 } 258 259 /* Grackle PCI host bridge */ 260 dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE); 261 qdev_prop_set_uint32(dev, "ofw-addr", 0x80000000); 262 object_property_set_link(OBJECT(dev), OBJECT(pic_dev), "pic", 263 &error_abort); 264 qdev_init_nofail(dev); 265 s = SYS_BUS_DEVICE(dev); 266 sysbus_mmio_map(s, 0, GRACKLE_BASE); 267 sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000); 268 /* PCI hole */ 269 memory_region_add_subregion(get_system_memory(), 0x80000000ULL, 270 sysbus_mmio_get_region(s, 2)); 271 /* Register 2 MB of ISA IO space */ 272 memory_region_add_subregion(get_system_memory(), 0xfe000000, 273 sysbus_mmio_get_region(s, 3)); 274 275 pci_bus = PCI_HOST_BRIDGE(dev)->bus; 276 277 pci_vga_init(pci_bus); 278 279 for (i = 0; i < nb_nics; i++) { 280 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 281 } 282 283 ide_drive_get(hd, ARRAY_SIZE(hd)); 284 285 /* MacIO */ 286 macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO)); 287 dev = DEVICE(macio); 288 qdev_prop_set_uint64(dev, "frequency", tbfreq); 289 object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic", 290 &error_abort); 291 qdev_init_nofail(dev); 292 293 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 294 "ide[0]")); 295 macio_ide_init_drives(macio_ide, hd); 296 297 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 298 "ide[1]")); 299 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 300 301 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 302 adb_bus = qdev_get_child_bus(dev, "adb.0"); 303 dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD); 304 qdev_init_nofail(dev); 305 dev = qdev_create(adb_bus, TYPE_ADB_MOUSE); 306 qdev_init_nofail(dev); 307 308 if (machine_usb(machine)) { 309 pci_create_simple(pci_bus, -1, "pci-ohci"); 310 } 311 312 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) 313 graphic_depth = 15; 314 315 /* No PCI init: the BIOS will do it */ 316 317 dev = qdev_create(NULL, TYPE_FW_CFG_MEM); 318 fw_cfg = FW_CFG(dev); 319 qdev_prop_set_uint32(dev, "data_width", 1); 320 qdev_prop_set_bit(dev, "dma_enabled", false); 321 object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG, 322 OBJECT(fw_cfg), NULL); 323 qdev_init_nofail(dev); 324 s = SYS_BUS_DEVICE(dev); 325 sysbus_mmio_map(s, 0, CFG_ADDR); 326 sysbus_mmio_map(s, 1, CFG_ADDR + 2); 327 328 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); 329 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus); 330 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); 331 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 332 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 333 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 334 if (kernel_cmdline) { 335 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 336 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, 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 IDEBus *ide_bus; 386 IDEState *ide_s; 387 MACIOIDEState *macio_ide; 388 389 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) { 390 pci = PCI_DEVICE(dev); 391 return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn)); 392 } 393 394 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) { 395 macio_ide = MACIO_IDE(dev); 396 return g_strdup_printf("ata-3@%x", macio_ide->addr); 397 } 398 399 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-drive")) { 400 ide_bus = IDE_BUS(qdev_get_parent_bus(dev)); 401 ide_s = idebus_active_if(ide_bus); 402 403 if (ide_s->drive_kind == IDE_CD) { 404 return g_strdup("cdrom"); 405 } 406 407 return g_strdup("disk"); 408 } 409 410 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) { 411 return g_strdup("disk"); 412 } 413 414 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) { 415 return g_strdup("cdrom"); 416 } 417 418 if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) { 419 return g_strdup("disk"); 420 } 421 422 return NULL; 423 } 424 425 static int heathrow_kvm_type(MachineState *machine, const char *arg) 426 { 427 /* Always force PR KVM */ 428 return 2; 429 } 430 431 static void heathrow_class_init(ObjectClass *oc, void *data) 432 { 433 MachineClass *mc = MACHINE_CLASS(oc); 434 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc); 435 436 mc->desc = "Heathrow based PowerMAC"; 437 mc->init = ppc_heathrow_init; 438 mc->block_default_type = IF_IDE; 439 mc->max_cpus = MAX_CPUS; 440 #ifndef TARGET_PPC64 441 mc->is_default = 1; 442 #endif 443 /* TOFIX "cad" when Mac floppy is implemented */ 444 mc->default_boot_order = "cd"; 445 mc->kvm_type = heathrow_kvm_type; 446 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 447 mc->default_display = "std"; 448 mc->ignore_boot_device_suffixes = true; 449 fwc->get_dev_path = heathrow_fw_dev_path; 450 } 451 452 static const TypeInfo ppc_heathrow_machine_info = { 453 .name = MACHINE_TYPE_NAME("g3beige"), 454 .parent = TYPE_MACHINE, 455 .class_init = heathrow_class_init, 456 .interfaces = (InterfaceInfo[]) { 457 { TYPE_FW_PATH_PROVIDER }, 458 { } 459 }, 460 }; 461 462 static void ppc_heathrow_register_types(void) 463 { 464 type_register_static(&ppc_heathrow_machine_info); 465 } 466 467 type_init(ppc_heathrow_register_types); 468