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/misc/macio/macio.h" 41 #include "hw/ide.h" 42 #include "hw/loader.h" 43 #include "elf.h" 44 #include "qemu/error-report.h" 45 #include "sysemu/kvm.h" 46 #include "kvm_ppc.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; 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 OldWorldMacIOState *macio; 96 MACIOIDEState *macio_ide; 97 DeviceState *dev, *pic_dev; 98 BusState *adb_bus; 99 int bios_size, ndrv_size; 100 uint8_t *ndrv_file; 101 uint16_t ppc_boot_device; 102 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 103 void *fw_cfg; 104 uint64_t tbfreq; 105 106 linux_boot = (kernel_filename != NULL); 107 108 /* init CPUs */ 109 for (i = 0; i < smp_cpus; i++) { 110 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 111 env = &cpu->env; 112 113 /* Set time-base frequency to 16.6 Mhz */ 114 cpu_ppc_tb_init(env, TBFREQ); 115 qemu_register_reset(ppc_heathrow_reset, cpu); 116 } 117 118 /* allocate RAM */ 119 if (ram_size > (2047 << 20)) { 120 fprintf(stderr, 121 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n", 122 ((unsigned int)ram_size / (1 << 20))); 123 exit(1); 124 } 125 126 memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram", 127 ram_size); 128 memory_region_add_subregion(sysmem, 0, ram); 129 130 /* allocate and load BIOS */ 131 memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, 132 &error_fatal); 133 134 if (bios_name == NULL) 135 bios_name = PROM_FILENAME; 136 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 137 memory_region_set_readonly(bios, true); 138 memory_region_add_subregion(sysmem, PROM_ADDR, bios); 139 140 /* Load OpenBIOS (ELF) */ 141 if (filename) { 142 bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL, 143 1, PPC_ELF_MACHINE, 0, 0); 144 g_free(filename); 145 } else { 146 bios_size = -1; 147 } 148 if (bios_size < 0 || bios_size > BIOS_SIZE) { 149 error_report("could not load PowerPC bios '%s'", bios_name); 150 exit(1); 151 } 152 153 if (linux_boot) { 154 uint64_t lowaddr = 0; 155 int bswap_needed; 156 157 #ifdef BSWAP_NEEDED 158 bswap_needed = 1; 159 #else 160 bswap_needed = 0; 161 #endif 162 kernel_base = KERNEL_LOAD_ADDR; 163 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, 164 NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE, 165 0, 0); 166 if (kernel_size < 0) 167 kernel_size = load_aout(kernel_filename, kernel_base, 168 ram_size - kernel_base, bswap_needed, 169 TARGET_PAGE_SIZE); 170 if (kernel_size < 0) 171 kernel_size = load_image_targphys(kernel_filename, 172 kernel_base, 173 ram_size - kernel_base); 174 if (kernel_size < 0) { 175 error_report("could not load kernel '%s'", kernel_filename); 176 exit(1); 177 } 178 /* load initrd */ 179 if (initrd_filename) { 180 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 181 initrd_size = load_image_targphys(initrd_filename, initrd_base, 182 ram_size - initrd_base); 183 if (initrd_size < 0) { 184 error_report("could not load initial ram disk '%s'", 185 initrd_filename); 186 exit(1); 187 } 188 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 189 } else { 190 initrd_base = 0; 191 initrd_size = 0; 192 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 193 } 194 ppc_boot_device = 'm'; 195 } else { 196 kernel_base = 0; 197 kernel_size = 0; 198 initrd_base = 0; 199 initrd_size = 0; 200 ppc_boot_device = '\0'; 201 for (i = 0; boot_device[i] != '\0'; i++) { 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 (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 208 ppc_boot_device = boot_device[i]; 209 break; 210 } 211 #else 212 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { 213 ppc_boot_device = boot_device[i]; 214 break; 215 } 216 #endif 217 } 218 if (ppc_boot_device == '\0') { 219 error_report("No valid boot device for G3 Beige machine"); 220 exit(1); 221 } 222 } 223 224 /* Register 2 MB of ISA IO space */ 225 memory_region_init_alias(isa, NULL, "isa_mmio", 226 get_system_io(), 0, 0x00200000); 227 memory_region_add_subregion(sysmem, 0xfe000000, isa); 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 pic = g_new0(qemu_irq, HEATHROW_NUM_IRQS); 247 for (i = 0; i < HEATHROW_NUM_IRQS; i++) { 248 pic[i] = qdev_get_gpio_in(pic_dev, i); 249 } 250 251 /* Timebase Frequency */ 252 if (kvm_enabled()) { 253 tbfreq = kvmppc_get_tbfreq(); 254 } else { 255 tbfreq = TBFREQ; 256 } 257 258 /* init basic PC hardware */ 259 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 260 error_report("Only 6xx bus is supported on heathrow machine"); 261 exit(1); 262 } 263 264 pci_bus = pci_grackle_init(0xfec00000, pic_dev, 265 get_system_memory(), 266 get_system_io()); 267 pci_vga_init(pci_bus); 268 269 for (i = 0; i < nb_nics; i++) { 270 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 271 } 272 273 ide_drive_get(hd, ARRAY_SIZE(hd)); 274 275 /* MacIO */ 276 macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO)); 277 dev = DEVICE(macio); 278 qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */ 279 qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */ 280 qdev_connect_gpio_out(dev, 2, pic[0x0F]); /* ESCC-A */ 281 qdev_connect_gpio_out(dev, 3, pic[0x0D]); /* IDE-0 */ 282 qdev_connect_gpio_out(dev, 4, pic[0x02]); /* IDE-0 DMA */ 283 qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */ 284 qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */ 285 qdev_prop_set_uint64(dev, "frequency", tbfreq); 286 object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic", 287 &error_abort); 288 qdev_init_nofail(dev); 289 290 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 291 "ide[0]")); 292 macio_ide_init_drives(macio_ide, hd); 293 294 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 295 "ide[1]")); 296 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 297 298 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 299 adb_bus = qdev_get_child_bus(dev, "adb.0"); 300 dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD); 301 qdev_init_nofail(dev); 302 dev = qdev_create(adb_bus, TYPE_ADB_MOUSE); 303 qdev_init_nofail(dev); 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 fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2); 315 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); 316 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); 317 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); 318 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 319 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 320 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 321 if (kernel_cmdline) { 322 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 323 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline); 324 } else { 325 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); 326 } 327 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 328 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 329 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); 330 331 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 332 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 333 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 334 335 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 336 if (kvm_enabled()) { 337 #ifdef CONFIG_KVM 338 uint8_t *hypercall; 339 340 hypercall = g_malloc(16); 341 kvmppc_get_hypercall(env, hypercall, 16); 342 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 343 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 344 #endif 345 } 346 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); 347 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ 348 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); 349 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); 350 351 /* MacOS NDRV VGA driver */ 352 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME); 353 if (filename) { 354 ndrv_size = get_image_size(filename); 355 if (ndrv_size != -1) { 356 ndrv_file = g_malloc(ndrv_size); 357 ndrv_size = load_image(filename, ndrv_file); 358 359 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size); 360 } 361 g_free(filename); 362 } 363 364 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 365 } 366 367 static int heathrow_kvm_type(const char *arg) 368 { 369 /* Always force PR KVM */ 370 return 2; 371 } 372 373 static void heathrow_class_init(ObjectClass *oc, void *data) 374 { 375 MachineClass *mc = MACHINE_CLASS(oc); 376 377 mc->desc = "Heathrow based PowerMAC"; 378 mc->init = ppc_heathrow_init; 379 mc->block_default_type = IF_IDE; 380 mc->max_cpus = MAX_CPUS; 381 #ifndef TARGET_PPC64 382 mc->is_default = 1; 383 #endif 384 /* TOFIX "cad" when Mac floppy is implemented */ 385 mc->default_boot_order = "cd"; 386 mc->kvm_type = heathrow_kvm_type; 387 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 388 } 389 390 static const TypeInfo ppc_heathrow_machine_info = { 391 .name = MACHINE_TYPE_NAME("g3beige"), 392 .parent = TYPE_MACHINE, 393 .class_init = heathrow_class_init 394 }; 395 396 static void ppc_heathrow_register_types(void) 397 { 398 type_register_static(&ppc_heathrow_machine_info); 399 } 400 401 type_init(ppc_heathrow_register_types); 402