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 "sysemu/block-backend.h" 48 #include "exec/address-spaces.h" 49 #include "qemu/cutils.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 static void fw_cfg_boot_set(void *opaque, const char *boot_device, 60 Error **errp) 61 { 62 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); 63 } 64 65 static uint64_t translate_kernel_address(void *opaque, uint64_t addr) 66 { 67 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; 68 } 69 70 static void ppc_heathrow_reset(void *opaque) 71 { 72 PowerPCCPU *cpu = opaque; 73 74 cpu_reset(CPU(cpu)); 75 } 76 77 static void ppc_heathrow_init(MachineState *machine) 78 { 79 ram_addr_t ram_size = machine->ram_size; 80 const char *kernel_filename = machine->kernel_filename; 81 const char *kernel_cmdline = machine->kernel_cmdline; 82 const char *initrd_filename = machine->initrd_filename; 83 const char *boot_device = machine->boot_order; 84 MemoryRegion *sysmem = get_system_memory(); 85 PowerPCCPU *cpu = NULL; 86 CPUPPCState *env = NULL; 87 char *filename; 88 qemu_irq *pic, **heathrow_irqs; 89 int linux_boot, i; 90 MemoryRegion *ram = g_new(MemoryRegion, 1); 91 MemoryRegion *bios = g_new(MemoryRegion, 1); 92 MemoryRegion *isa = g_new(MemoryRegion, 1); 93 uint32_t kernel_base, initrd_base, cmdline_base = 0; 94 int32_t kernel_size, initrd_size; 95 PCIBus *pci_bus; 96 PCIDevice *macio; 97 MACIOIDEState *macio_ide; 98 DeviceState *dev, *pic_dev; 99 SysBusDevice *sbd; 100 BusState *adb_bus; 101 int bios_size, ndrv_size; 102 uint8_t *ndrv_file; 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_dev = heathrow_pic_init(1, heathrow_irqs, &pic); 262 pci_bus = pci_grackle_init(0xfec00000, pic, 263 get_system_memory(), 264 get_system_io()); 265 pci_vga_init(pci_bus); 266 267 for (i = 0; i < nb_nics; i++) { 268 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 269 } 270 271 ide_drive_get(hd, ARRAY_SIZE(hd)); 272 273 /* MacIO */ 274 macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO); 275 dev = DEVICE(macio); 276 qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */ 277 qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */ 278 qdev_connect_gpio_out(dev, 2, pic[0x0F]); /* ESCC-A */ 279 qdev_connect_gpio_out(dev, 3, pic[0x0D]); /* IDE-0 */ 280 qdev_connect_gpio_out(dev, 4, pic[0x02]); /* IDE-0 DMA */ 281 qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */ 282 qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */ 283 qdev_prop_set_uint64(dev, "frequency", tbfreq); 284 sbd = SYS_BUS_DEVICE(pic_dev); 285 macio_init(macio, sysbus_mmio_get_region(sbd, 0)); 286 287 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 288 "ide[0]")); 289 macio_ide_init_drives(macio_ide, hd); 290 291 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), 292 "ide[1]")); 293 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); 294 295 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); 296 adb_bus = qdev_get_child_bus(dev, "adb.0"); 297 dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD); 298 qdev_init_nofail(dev); 299 dev = qdev_create(adb_bus, TYPE_ADB_MOUSE); 300 qdev_init_nofail(dev); 301 302 if (machine_usb(machine)) { 303 pci_create_simple(pci_bus, -1, "pci-ohci"); 304 } 305 306 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) 307 graphic_depth = 15; 308 309 /* No PCI init: the BIOS will do it */ 310 311 fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2); 312 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); 313 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); 314 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); 315 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); 316 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 317 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 318 if (kernel_cmdline) { 319 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); 320 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline); 321 } else { 322 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); 323 } 324 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 325 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 326 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); 327 328 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 329 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 330 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 331 332 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 333 if (kvm_enabled()) { 334 #ifdef CONFIG_KVM 335 uint8_t *hypercall; 336 337 hypercall = g_malloc(16); 338 kvmppc_get_hypercall(env, hypercall, 16); 339 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 340 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 341 #endif 342 } 343 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); 344 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ 345 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); 346 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); 347 348 /* MacOS NDRV VGA driver */ 349 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME); 350 if (filename) { 351 ndrv_size = get_image_size(filename); 352 if (ndrv_size != -1) { 353 ndrv_file = g_malloc(ndrv_size); 354 ndrv_size = load_image(filename, ndrv_file); 355 356 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size); 357 } 358 g_free(filename); 359 } 360 361 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 362 } 363 364 static int heathrow_kvm_type(const char *arg) 365 { 366 /* Always force PR KVM */ 367 return 2; 368 } 369 370 static void heathrow_class_init(ObjectClass *oc, void *data) 371 { 372 MachineClass *mc = MACHINE_CLASS(oc); 373 374 mc->desc = "Heathrow based PowerMAC"; 375 mc->init = ppc_heathrow_init; 376 mc->block_default_type = IF_IDE; 377 mc->max_cpus = MAX_CPUS; 378 #ifndef TARGET_PPC64 379 mc->is_default = 1; 380 #endif 381 /* TOFIX "cad" when Mac floppy is implemented */ 382 mc->default_boot_order = "cd"; 383 mc->kvm_type = heathrow_kvm_type; 384 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1"); 385 } 386 387 static const TypeInfo ppc_heathrow_machine_info = { 388 .name = MACHINE_TYPE_NAME("g3beige"), 389 .parent = TYPE_MACHINE, 390 .class_init = heathrow_class_init 391 }; 392 393 static void ppc_heathrow_register_types(void) 394 { 395 type_register_static(&ppc_heathrow_machine_info); 396 } 397 398 type_init(ppc_heathrow_register_types); 399