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 MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1); 103 uint16_t ppc_boot_device; 104 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 105 void *fw_cfg; 106 uint64_t tbfreq; 107 108 linux_boot = (kernel_filename != NULL); 109 110 /* init CPUs */ 111 for (i = 0; i < smp_cpus; i++) { 112 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 113 env = &cpu->env; 114 115 /* Set time-base frequency to 16.6 Mhz */ 116 cpu_ppc_tb_init(env, TBFREQ); 117 qemu_register_reset(ppc_heathrow_reset, cpu); 118 } 119 120 /* allocate RAM */ 121 if (ram_size > (2047 << 20)) { 122 fprintf(stderr, 123 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n", 124 ((unsigned int)ram_size / (1 << 20))); 125 exit(1); 126 } 127 128 memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram", 129 ram_size); 130 memory_region_add_subregion(sysmem, 0, ram); 131 132 /* allocate and load BIOS */ 133 memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, 134 &error_fatal); 135 136 if (bios_name == NULL) 137 bios_name = PROM_FILENAME; 138 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 139 memory_region_set_readonly(bios, true); 140 memory_region_add_subregion(sysmem, PROM_ADDR, bios); 141 142 /* Load OpenBIOS (ELF) */ 143 if (filename) { 144 bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL, 145 1, PPC_ELF_MACHINE, 0, 0); 146 g_free(filename); 147 } else { 148 bios_size = -1; 149 } 150 if (bios_size < 0 || bios_size > BIOS_SIZE) { 151 error_report("could not load PowerPC bios '%s'", bios_name); 152 exit(1); 153 } 154 155 if (linux_boot) { 156 uint64_t lowaddr = 0; 157 int bswap_needed; 158 159 #ifdef BSWAP_NEEDED 160 bswap_needed = 1; 161 #else 162 bswap_needed = 0; 163 #endif 164 kernel_base = KERNEL_LOAD_ADDR; 165 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, 166 NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE, 167 0, 0); 168 if (kernel_size < 0) 169 kernel_size = load_aout(kernel_filename, kernel_base, 170 ram_size - kernel_base, bswap_needed, 171 TARGET_PAGE_SIZE); 172 if (kernel_size < 0) 173 kernel_size = load_image_targphys(kernel_filename, 174 kernel_base, 175 ram_size - kernel_base); 176 if (kernel_size < 0) { 177 error_report("could not load kernel '%s'", kernel_filename); 178 exit(1); 179 } 180 /* load initrd */ 181 if (initrd_filename) { 182 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 183 initrd_size = load_image_targphys(initrd_filename, initrd_base, 184 ram_size - initrd_base); 185 if (initrd_size < 0) { 186 error_report("could not load initial ram disk '%s'", 187 initrd_filename); 188 exit(1); 189 } 190 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 191 } else { 192 initrd_base = 0; 193 initrd_size = 0; 194 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 195 } 196 ppc_boot_device = 'm'; 197 } else { 198 kernel_base = 0; 199 kernel_size = 0; 200 initrd_base = 0; 201 initrd_size = 0; 202 ppc_boot_device = '\0'; 203 for (i = 0; boot_device[i] != '\0'; i++) { 204 /* TOFIX: for now, the second IDE channel is not properly 205 * used by OHW. The Mac floppy disk are not emulated. 206 * For now, OHW cannot boot from the network. 207 */ 208 #if 0 209 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 210 ppc_boot_device = boot_device[i]; 211 break; 212 } 213 #else 214 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { 215 ppc_boot_device = boot_device[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 /* Register 2 MB of ISA IO space */ 227 memory_region_init_alias(isa, NULL, "isa_mmio", 228 get_system_io(), 0, 0x00200000); 229 memory_region_add_subregion(sysmem, 0xfe000000, isa); 230 231 /* XXX: we register only 1 output pin for heathrow PIC */ 232 heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *)); 233 heathrow_irqs[0] = 234 g_malloc0(smp_cpus * sizeof(qemu_irq) * 1); 235 /* Connect the heathrow PIC outputs to the 6xx bus */ 236 for (i = 0; i < smp_cpus; i++) { 237 switch (PPC_INPUT(env)) { 238 case PPC_FLAGS_INPUT_6xx: 239 heathrow_irqs[i] = heathrow_irqs[0] + (i * 1); 240 heathrow_irqs[i][0] = 241 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; 242 break; 243 default: 244 error_report("Bus model not supported on OldWorld Mac machine"); 245 exit(1); 246 } 247 } 248 249 /* Timebase Frequency */ 250 if (kvm_enabled()) { 251 tbfreq = kvmppc_get_tbfreq(); 252 } else { 253 tbfreq = TBFREQ; 254 } 255 256 /* init basic PC hardware */ 257 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 258 error_report("Only 6xx bus is supported on heathrow machine"); 259 exit(1); 260 } 261 pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs); 262 pci_bus = pci_grackle_init(0xfec00000, pic, 263 get_system_memory(), 264 get_system_io()); 265 pci_vga_init(pci_bus); 266 267 escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0], 268 serial_hds[1], ESCC_CLOCK, 4); 269 memory_region_init_alias(escc_bar, NULL, "escc-bar", 270 escc_mem, 0, memory_region_size(escc_mem)); 271 272 for(i = 0; i < nb_nics; i++) 273 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 274 275 276 ide_drive_get(hd, ARRAY_SIZE(hd)); 277 278 macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO); 279 dev = DEVICE(macio); 280 qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */ 281 qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */ 282 qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */ 283 qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */ 284 qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */ 285 qdev_prop_set_uint64(dev, "frequency", tbfreq); 286 macio_init(macio, pic_mem, escc_bar); 287 288 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 289 "ide[0]")); 290 macio_ide_init_drives(macio_ide, hd); 291 292 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 293 "ide[1]")); 294 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 295 296 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 297 adb_bus = qdev_get_child_bus(dev, "adb.0"); 298 dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD); 299 qdev_init_nofail(dev); 300 dev = qdev_create(adb_bus, TYPE_ADB_MOUSE); 301 qdev_init_nofail(dev); 302 303 if (machine_usb(machine)) { 304 pci_create_simple(pci_bus, -1, "pci-ohci"); 305 } 306 307 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) 308 graphic_depth = 15; 309 310 /* No PCI init: the BIOS will do it */ 311 312 fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2); 313 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); 314 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); 315 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); 316 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 317 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 318 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 319 if (kernel_cmdline) { 320 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 321 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline); 322 } else { 323 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); 324 } 325 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 326 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 327 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); 328 329 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 330 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 331 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 332 333 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 334 if (kvm_enabled()) { 335 #ifdef CONFIG_KVM 336 uint8_t *hypercall; 337 338 hypercall = g_malloc(16); 339 kvmppc_get_hypercall(env, hypercall, 16); 340 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 341 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 342 #endif 343 } 344 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); 345 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ 346 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); 347 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); 348 349 /* MacOS NDRV VGA driver */ 350 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME); 351 if (filename) { 352 ndrv_size = get_image_size(filename); 353 if (ndrv_size != -1) { 354 ndrv_file = g_malloc(ndrv_size); 355 ndrv_size = load_image(filename, ndrv_file); 356 357 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size); 358 } 359 g_free(filename); 360 } 361 362 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 363 } 364 365 static int heathrow_kvm_type(const char *arg) 366 { 367 /* Always force PR KVM */ 368 return 2; 369 } 370 371 static void heathrow_class_init(ObjectClass *oc, void *data) 372 { 373 MachineClass *mc = MACHINE_CLASS(oc); 374 375 mc->desc = "Heathrow based PowerMAC"; 376 mc->init = ppc_heathrow_init; 377 mc->block_default_type = IF_IDE; 378 mc->max_cpus = MAX_CPUS; 379 #ifndef TARGET_PPC64 380 mc->is_default = 1; 381 #endif 382 /* TOFIX "cad" when Mac floppy is implemented */ 383 mc->default_boot_order = "cd"; 384 mc->kvm_type = heathrow_kvm_type; 385 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 386 } 387 388 static const TypeInfo ppc_heathrow_machine_info = { 389 .name = MACHINE_TYPE_NAME("g3beige"), 390 .parent = TYPE_MACHINE, 391 .class_init = heathrow_class_init 392 }; 393 394 static void ppc_heathrow_register_types(void) 395 { 396 type_register_static(&ppc_heathrow_machine_info); 397 } 398 399 type_init(ppc_heathrow_register_types); 400