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 "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/nvram/fw_cfg.h" 41 #include "hw/char/escc.h" 42 #include "hw/misc/macio/macio.h" 43 #include "hw/loader.h" 44 #include "hw/fw-path-provider.h" 45 #include "elf.h" 46 #include "qemu/error-report.h" 47 #include "sysemu/kvm.h" 48 #include "sysemu/reset.h" 49 #include "kvm_ppc.h" 50 51 #define MAX_IDE_BUS 2 52 #define CFG_ADDR 0xf0000510 53 #define TBFREQ 16600000UL 54 #define CLOCKFREQ 266000000UL 55 #define BUSFREQ 66000000UL 56 57 #define NDRV_VGA_FILENAME "qemu_vga.ndrv" 58 59 #define GRACKLE_BASE 0xfec00000 60 #define PROM_BASE 0xffc00000 61 #define PROM_SIZE (4 * MiB) 62 63 static void fw_cfg_boot_set(void *opaque, const char *boot_device, 64 Error **errp) 65 { 66 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); 67 } 68 69 static uint64_t translate_kernel_address(void *opaque, uint64_t addr) 70 { 71 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; 72 } 73 74 static void ppc_heathrow_reset(void *opaque) 75 { 76 PowerPCCPU *cpu = opaque; 77 78 cpu_reset(CPU(cpu)); 79 } 80 81 static void ppc_heathrow_init(MachineState *machine) 82 { 83 const char *bios_name = machine->firmware ?: PROM_FILENAME; 84 PowerPCCPU *cpu = NULL; 85 CPUPPCState *env = NULL; 86 char *filename; 87 int i, bios_size; 88 MemoryRegion *bios = g_new(MemoryRegion, 1); 89 uint64_t bios_addr; 90 uint32_t kernel_base, initrd_base, cmdline_base = 0; 91 int32_t kernel_size, initrd_size; 92 PCIBus *pci_bus; 93 PCIDevice *macio; 94 MACIOIDEState *macio_ide; 95 ESCCState *escc; 96 SysBusDevice *s; 97 DeviceState *dev, *pic_dev, *grackle_dev; 98 BusState *adb_bus; 99 uint16_t ppc_boot_device; 100 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 101 void *fw_cfg; 102 uint64_t tbfreq; 103 104 /* init CPUs */ 105 for (i = 0; i < machine->smp.cpus; i++) { 106 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 107 env = &cpu->env; 108 109 /* Set time-base frequency to 16.6 Mhz */ 110 cpu_ppc_tb_init(env, TBFREQ); 111 qemu_register_reset(ppc_heathrow_reset, cpu); 112 } 113 114 /* allocate RAM */ 115 if (machine->ram_size > 2047 * MiB) { 116 error_report("Too much memory for this machine: %" PRId64 " MB, " 117 "maximum 2047 MB", machine->ram_size / MiB); 118 exit(1); 119 } 120 121 memory_region_add_subregion(get_system_memory(), 0, machine->ram); 122 123 /* allocate and load firmware ROM */ 124 memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE, 125 &error_fatal); 126 memory_region_add_subregion(get_system_memory(), PROM_BASE, bios); 127 128 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 129 if (filename) { 130 /* Load OpenBIOS (ELF) */ 131 bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr, 132 NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0); 133 /* Unfortunately, load_elf sign-extends reading elf32 */ 134 bios_addr = (uint32_t)bios_addr; 135 136 if (bios_size <= 0) { 137 /* or if could not load ELF try loading a binary ROM image */ 138 bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE); 139 bios_addr = PROM_BASE; 140 } 141 g_free(filename); 142 } else { 143 bios_size = -1; 144 } 145 if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) { 146 error_report("could not load PowerPC bios '%s'", bios_name); 147 exit(1); 148 } 149 150 if (machine->kernel_filename) { 151 int bswap_needed; 152 153 #ifdef BSWAP_NEEDED 154 bswap_needed = 1; 155 #else 156 bswap_needed = 0; 157 #endif 158 kernel_base = KERNEL_LOAD_ADDR; 159 kernel_size = load_elf(machine->kernel_filename, NULL, 160 translate_kernel_address, NULL, NULL, NULL, 161 NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0); 162 if (kernel_size < 0) 163 kernel_size = load_aout(machine->kernel_filename, kernel_base, 164 machine->ram_size - kernel_base, 165 bswap_needed, TARGET_PAGE_SIZE); 166 if (kernel_size < 0) 167 kernel_size = load_image_targphys(machine->kernel_filename, 168 kernel_base, 169 machine->ram_size - kernel_base); 170 if (kernel_size < 0) { 171 error_report("could not load kernel '%s'", 172 machine->kernel_filename); 173 exit(1); 174 } 175 /* load initrd */ 176 if (machine->initrd_filename) { 177 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + 178 KERNEL_GAP); 179 initrd_size = load_image_targphys(machine->initrd_filename, 180 initrd_base, 181 machine->ram_size - initrd_base); 182 if (initrd_size < 0) { 183 error_report("could not load initial ram disk '%s'", 184 machine->initrd_filename); 185 exit(1); 186 } 187 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 188 } else { 189 initrd_base = 0; 190 initrd_size = 0; 191 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 192 } 193 ppc_boot_device = 'm'; 194 } else { 195 kernel_base = 0; 196 kernel_size = 0; 197 initrd_base = 0; 198 initrd_size = 0; 199 ppc_boot_device = '\0'; 200 for (i = 0; machine->boot_config.order[i] != '\0'; i++) { 201 /* 202 * TOFIX: for now, the second IDE channel is not properly 203 * used by OHW. The Mac floppy disk are not emulated. 204 * For now, OHW cannot boot from the network. 205 */ 206 #if 0 207 if (machine->boot_config.order[i] >= 'a' && 208 machine->boot_config.order[i] <= 'f') { 209 ppc_boot_device = machine->boot_config.order[i]; 210 break; 211 } 212 #else 213 if (machine->boot_config.order[i] >= 'c' && 214 machine->boot_config.order[i] <= 'd') { 215 ppc_boot_device = machine->boot_config.order[i]; 216 break; 217 } 218 #endif 219 } 220 if (ppc_boot_device == '\0') { 221 error_report("No valid boot device for G3 Beige machine"); 222 exit(1); 223 } 224 } 225 226 /* Timebase Frequency */ 227 if (kvm_enabled()) { 228 tbfreq = kvmppc_get_tbfreq(); 229 } else { 230 tbfreq = TBFREQ; 231 } 232 233 /* Grackle PCI host bridge */ 234 grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE); 235 qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000); 236 s = SYS_BUS_DEVICE(grackle_dev); 237 sysbus_realize_and_unref(s, &error_fatal); 238 239 sysbus_mmio_map(s, 0, GRACKLE_BASE); 240 sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000); 241 /* PCI hole */ 242 memory_region_add_subregion(get_system_memory(), 0x80000000ULL, 243 sysbus_mmio_get_region(s, 2)); 244 /* Register 2 MB of ISA IO space */ 245 memory_region_add_subregion(get_system_memory(), 0xfe000000, 246 sysbus_mmio_get_region(s, 3)); 247 248 pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus; 249 250 /* MacIO */ 251 macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO); 252 dev = DEVICE(macio); 253 qdev_prop_set_uint64(dev, "frequency", tbfreq); 254 255 escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc")); 256 qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0)); 257 qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1)); 258 259 pci_realize_and_unref(macio, pci_bus, &error_fatal); 260 261 pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic")); 262 for (i = 0; i < 4; i++) { 263 qdev_connect_gpio_out(grackle_dev, i, 264 qdev_get_gpio_in(pic_dev, 0x15 + i)); 265 } 266 267 /* Connect the heathrow PIC outputs to the 6xx bus */ 268 for (i = 0; i < machine->smp.cpus; i++) { 269 switch (PPC_INPUT(env)) { 270 case PPC_FLAGS_INPUT_6xx: 271 /* XXX: we register only 1 output pin for heathrow PIC */ 272 qdev_connect_gpio_out(pic_dev, 0, 273 qdev_get_gpio_in(DEVICE(cpu), PPC6xx_INPUT_INT)); 274 break; 275 default: 276 error_report("Bus model not supported on OldWorld Mac machine"); 277 exit(1); 278 } 279 } 280 281 pci_vga_init(pci_bus); 282 283 for (i = 0; i < nb_nics; i++) { 284 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 285 } 286 287 /* MacIO IDE */ 288 ide_drive_get(hd, ARRAY_SIZE(hd)); 289 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 290 "ide[0]")); 291 macio_ide_init_drives(macio_ide, hd); 292 293 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 294 "ide[1]")); 295 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 296 297 /* MacIO CUDA/ADB */ 298 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 299 adb_bus = qdev_get_child_bus(dev, "adb.0"); 300 dev = qdev_new(TYPE_ADB_KEYBOARD); 301 qdev_realize_and_unref(dev, adb_bus, &error_fatal); 302 dev = qdev_new(TYPE_ADB_MOUSE); 303 qdev_realize_and_unref(dev, adb_bus, &error_fatal); 304 305 if (machine_usb(machine)) { 306 pci_create_simple(pci_bus, -1, "pci-ohci"); 307 } 308 309 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) 310 graphic_depth = 15; 311 312 /* No PCI init: the BIOS will do it */ 313 314 dev = qdev_new(TYPE_FW_CFG_MEM); 315 fw_cfg = FW_CFG(dev); 316 qdev_prop_set_uint32(dev, "data_width", 1); 317 qdev_prop_set_bit(dev, "dma_enabled", false); 318 object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG, 319 OBJECT(fw_cfg)); 320 s = SYS_BUS_DEVICE(dev); 321 sysbus_realize_and_unref(s, &error_fatal); 322 sysbus_mmio_map(s, 0, CFG_ADDR); 323 sysbus_mmio_map(s, 1, CFG_ADDR + 2); 324 325 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)machine->smp.cpus); 326 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus); 327 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size); 328 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 329 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 330 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 331 if (machine->kernel_cmdline) { 332 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 333 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, 334 machine->kernel_cmdline); 335 } else { 336 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); 337 } 338 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 339 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 340 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); 341 342 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 343 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 344 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 345 346 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 347 if (kvm_enabled()) { 348 uint8_t *hypercall; 349 350 hypercall = g_malloc(16); 351 kvmppc_get_hypercall(env, hypercall, 16); 352 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 353 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 354 } 355 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); 356 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ 357 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); 358 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); 359 360 /* MacOS NDRV VGA driver */ 361 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME); 362 if (filename) { 363 gchar *ndrv_file; 364 gsize ndrv_size; 365 366 if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) { 367 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size); 368 } 369 g_free(filename); 370 } 371 372 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 373 } 374 375 /* 376 * Implementation of an interface to adjust firmware path 377 * for the bootindex property handling. 378 */ 379 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus, 380 DeviceState *dev) 381 { 382 PCIDevice *pci; 383 MACIOIDEState *macio_ide; 384 385 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) { 386 pci = PCI_DEVICE(dev); 387 return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn)); 388 } 389 390 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) { 391 macio_ide = MACIO_IDE(dev); 392 return g_strdup_printf("ata-3@%x", macio_ide->addr); 393 } 394 395 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) { 396 return g_strdup("disk"); 397 } 398 399 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) { 400 return g_strdup("cdrom"); 401 } 402 403 if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) { 404 return g_strdup("disk"); 405 } 406 407 return NULL; 408 } 409 410 static int heathrow_kvm_type(MachineState *machine, const char *arg) 411 { 412 /* Always force PR KVM */ 413 return 2; 414 } 415 416 static void heathrow_class_init(ObjectClass *oc, void *data) 417 { 418 MachineClass *mc = MACHINE_CLASS(oc); 419 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc); 420 421 mc->desc = "Heathrow based PowerMAC"; 422 mc->init = ppc_heathrow_init; 423 mc->block_default_type = IF_IDE; 424 /* SMP is not supported currently */ 425 mc->max_cpus = 1; 426 #ifndef TARGET_PPC64 427 mc->is_default = true; 428 #endif 429 /* TOFIX "cad" when Mac floppy is implemented */ 430 mc->default_boot_order = "cd"; 431 mc->kvm_type = heathrow_kvm_type; 432 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 433 mc->default_display = "std"; 434 mc->ignore_boot_device_suffixes = true; 435 mc->default_ram_id = "ppc_heathrow.ram"; 436 fwc->get_dev_path = heathrow_fw_dev_path; 437 } 438 439 static const TypeInfo ppc_heathrow_machine_info = { 440 .name = MACHINE_TYPE_NAME("g3beige"), 441 .parent = TYPE_MACHINE, 442 .class_init = heathrow_class_init, 443 .interfaces = (InterfaceInfo[]) { 444 { TYPE_FW_PATH_PROVIDER }, 445 { } 446 }, 447 }; 448 449 static void ppc_heathrow_register_types(void) 450 { 451 type_register_static(&ppc_heathrow_machine_info); 452 } 453 454 type_init(ppc_heathrow_register_types); 455