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 "qemu/units.h" 28 #include "qapi/error.h" 29 #include "hw/hw.h" 30 #include "hw/ppc/ppc.h" 31 #include "mac.h" 32 #include "hw/input/adb.h" 33 #include "hw/timer/m48t59.h" 34 #include "sysemu/sysemu.h" 35 #include "net/net.h" 36 #include "hw/isa/isa.h" 37 #include "hw/pci/pci.h" 38 #include "hw/pci/pci_host.h" 39 #include "hw/boards.h" 40 #include "hw/nvram/fw_cfg.h" 41 #include "hw/char/escc.h" 42 #include "hw/misc/macio/macio.h" 43 #include "hw/ide.h" 44 #include "hw/loader.h" 45 #include "elf.h" 46 #include "qemu/error-report.h" 47 #include "sysemu/kvm.h" 48 #include "kvm_ppc.h" 49 #include "exec/address-spaces.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 61 static void fw_cfg_boot_set(void *opaque, const char *boot_device, 62 Error **errp) 63 { 64 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); 65 } 66 67 static uint64_t translate_kernel_address(void *opaque, uint64_t addr) 68 { 69 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; 70 } 71 72 static void ppc_heathrow_reset(void *opaque) 73 { 74 PowerPCCPU *cpu = opaque; 75 76 cpu_reset(CPU(cpu)); 77 } 78 79 static void ppc_heathrow_init(MachineState *machine) 80 { 81 ram_addr_t ram_size = machine->ram_size; 82 const char *kernel_filename = machine->kernel_filename; 83 const char *kernel_cmdline = machine->kernel_cmdline; 84 const char *initrd_filename = machine->initrd_filename; 85 const char *boot_device = machine->boot_order; 86 MemoryRegion *sysmem = get_system_memory(); 87 PowerPCCPU *cpu = NULL; 88 CPUPPCState *env = NULL; 89 char *filename; 90 int linux_boot, i; 91 MemoryRegion *ram = g_new(MemoryRegion, 1); 92 MemoryRegion *bios = 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 OldWorldMacIOState *macio; 97 MACIOIDEState *macio_ide; 98 SysBusDevice *s; 99 DeviceState *dev, *pic_dev; 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 * MiB) { 122 error_report("Too much memory for this machine: %" PRId64 " MB, " 123 "maximum 2047 MB", ram_size / MiB); 124 exit(1); 125 } 126 127 memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram", 128 ram_size); 129 memory_region_add_subregion(sysmem, 0, ram); 130 131 /* allocate and load BIOS */ 132 memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, 133 &error_fatal); 134 135 if (bios_name == NULL) 136 bios_name = PROM_FILENAME; 137 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 138 memory_region_set_readonly(bios, true); 139 memory_region_add_subregion(sysmem, PROM_ADDR, bios); 140 141 /* Load OpenBIOS (ELF) */ 142 if (filename) { 143 bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL, 144 1, PPC_ELF_MACHINE, 0, 0); 145 g_free(filename); 146 } else { 147 bios_size = -1; 148 } 149 if (bios_size < 0 || bios_size > BIOS_SIZE) { 150 error_report("could not load PowerPC bios '%s'", bios_name); 151 exit(1); 152 } 153 154 if (linux_boot) { 155 uint64_t lowaddr = 0; 156 int bswap_needed; 157 158 #ifdef BSWAP_NEEDED 159 bswap_needed = 1; 160 #else 161 bswap_needed = 0; 162 #endif 163 kernel_base = KERNEL_LOAD_ADDR; 164 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, 165 NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE, 166 0, 0); 167 if (kernel_size < 0) 168 kernel_size = load_aout(kernel_filename, kernel_base, 169 ram_size - kernel_base, bswap_needed, 170 TARGET_PAGE_SIZE); 171 if (kernel_size < 0) 172 kernel_size = load_image_targphys(kernel_filename, 173 kernel_base, 174 ram_size - kernel_base); 175 if (kernel_size < 0) { 176 error_report("could not load kernel '%s'", kernel_filename); 177 exit(1); 178 } 179 /* load initrd */ 180 if (initrd_filename) { 181 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 182 initrd_size = load_image_targphys(initrd_filename, initrd_base, 183 ram_size - initrd_base); 184 if (initrd_size < 0) { 185 error_report("could not load initial ram disk '%s'", 186 initrd_filename); 187 exit(1); 188 } 189 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size); 190 } else { 191 initrd_base = 0; 192 initrd_size = 0; 193 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP); 194 } 195 ppc_boot_device = 'm'; 196 } else { 197 kernel_base = 0; 198 kernel_size = 0; 199 initrd_base = 0; 200 initrd_size = 0; 201 ppc_boot_device = '\0'; 202 for (i = 0; boot_device[i] != '\0'; i++) { 203 /* TOFIX: for now, the second IDE channel is not properly 204 * used by OHW. The Mac floppy disk are not emulated. 205 * For now, OHW cannot boot from the network. 206 */ 207 #if 0 208 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 209 ppc_boot_device = boot_device[i]; 210 break; 211 } 212 #else 213 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { 214 ppc_boot_device = boot_device[i]; 215 break; 216 } 217 #endif 218 } 219 if (ppc_boot_device == '\0') { 220 error_report("No valid boot device for G3 Beige machine"); 221 exit(1); 222 } 223 } 224 225 /* XXX: we register only 1 output pin for heathrow PIC */ 226 pic_dev = qdev_create(NULL, TYPE_HEATHROW); 227 qdev_init_nofail(pic_dev); 228 229 /* Connect the heathrow PIC outputs to the 6xx bus */ 230 for (i = 0; i < smp_cpus; i++) { 231 switch (PPC_INPUT(env)) { 232 case PPC_FLAGS_INPUT_6xx: 233 qdev_connect_gpio_out(pic_dev, 0, 234 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]); 235 break; 236 default: 237 error_report("Bus model not supported on OldWorld Mac machine"); 238 exit(1); 239 } 240 } 241 242 /* Timebase Frequency */ 243 if (kvm_enabled()) { 244 tbfreq = kvmppc_get_tbfreq(); 245 } else { 246 tbfreq = TBFREQ; 247 } 248 249 /* init basic PC hardware */ 250 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 251 error_report("Only 6xx bus is supported on heathrow machine"); 252 exit(1); 253 } 254 255 /* Grackle PCI host bridge */ 256 dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE); 257 object_property_set_link(OBJECT(dev), OBJECT(pic_dev), "pic", 258 &error_abort); 259 qdev_init_nofail(dev); 260 s = SYS_BUS_DEVICE(dev); 261 sysbus_mmio_map(s, 0, GRACKLE_BASE); 262 sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000); 263 /* PCI hole */ 264 memory_region_add_subregion(get_system_memory(), 0x80000000ULL, 265 sysbus_mmio_get_region(s, 2)); 266 /* Register 2 MB of ISA IO space */ 267 memory_region_add_subregion(get_system_memory(), 0xfe000000, 268 sysbus_mmio_get_region(s, 3)); 269 270 pci_bus = PCI_HOST_BRIDGE(dev)->bus; 271 272 pci_vga_init(pci_bus); 273 274 for (i = 0; i < nb_nics; i++) { 275 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 276 } 277 278 ide_drive_get(hd, ARRAY_SIZE(hd)); 279 280 /* MacIO */ 281 macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO)); 282 dev = DEVICE(macio); 283 qdev_prop_set_uint64(dev, "frequency", tbfreq); 284 object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic", 285 &error_abort); 286 qdev_init_nofail(dev); 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 mc->default_display = "std"; 387 } 388 389 static const TypeInfo ppc_heathrow_machine_info = { 390 .name = MACHINE_TYPE_NAME("g3beige"), 391 .parent = TYPE_MACHINE, 392 .class_init = heathrow_class_init 393 }; 394 395 static void ppc_heathrow_register_types(void) 396 { 397 type_register_static(&ppc_heathrow_machine_info); 398 } 399 400 type_init(ppc_heathrow_register_types); 401