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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 "exec/target_page.h"
32 #include "hw/ppc/ppc.h"
33 #include "hw/core/qdev-properties.h"
34 #include "hw/core/boards.h"
35 #include "hw/input/adb.h"
36 #include "system/system.h"
37 #include "net/net.h"
38 #include "hw/isa/isa.h"
39 #include "hw/pci/pci.h"
40 #include "hw/pci/pci_host.h"
41 #include "hw/pci-host/grackle.h"
42 #include "hw/nvram/fw_cfg.h"
43 #include "hw/char/escc.h"
44 #include "hw/misc/macio/macio.h"
45 #include "hw/core/loader.h"
46 #include "hw/core/fw-path-provider.h"
47 #include "elf.h"
48 #include "qemu/error-report.h"
49 #include "system/kvm.h"
50 #include "system/reset.h"
51 #include "kvm_ppc.h"
52
53 #define MAX_IDE_BUS 2
54 #define CFG_ADDR 0xf0000510
55 #define TBFREQ 16600000UL
56 #define CLOCKFREQ 266000000UL
57 #define BUSFREQ 66000000UL
58
59 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
60
61 #define PROM_FILENAME "openbios-ppc"
62 #define PROM_BASE 0xffc00000
63 #define PROM_SIZE (4 * MiB)
64
65 #define KERNEL_LOAD_ADDR 0x01000000
66 #define KERNEL_GAP 0x00100000
67
68 #define GRACKLE_BASE 0xfec00000
69
70 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
71 Error **errp)
72 {
73 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
74 }
75
76 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
77 {
78 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
79 }
80
81 static void ppc_heathrow_reset(void *opaque)
82 {
83 PowerPCCPU *cpu = opaque;
84
85 cpu_ppc_tb_reset(&cpu->env);
86 cpu_reset(CPU(cpu));
87 }
88
89 static void ppc_heathrow_init(MachineState *machine)
90 {
91 const char *bios_name = machine->firmware ?: PROM_FILENAME;
92 MachineClass *mc = MACHINE_GET_CLASS(machine);
93 PowerPCCPU *cpu = NULL;
94 CPUPPCState *env = NULL;
95 char *filename;
96 int i, bios_size = -1;
97 MemoryRegion *bios = g_new(MemoryRegion, 1);
98 uint64_t bios_addr;
99 uint32_t kernel_base = 0, initrd_base = 0, cmdline_base = 0;
100 int32_t kernel_size = 0, initrd_size = 0;
101 PCIBus *pci_bus;
102 Object *macio;
103 MACIOIDEState *macio_ide;
104 SysBusDevice *s;
105 DeviceState *dev, *pic_dev, *grackle_dev;
106 BusState *adb_bus;
107 uint16_t ppc_boot_device;
108 DriveInfo *dinfo, *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
109 void *fw_cfg;
110 uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
111
112 /* init CPUs */
113 for (i = 0; i < machine->smp.cpus; i++) {
114 cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
115 env = &cpu->env;
116
117 /* Set time-base frequency to 16.6 Mhz */
118 cpu_ppc_tb_init(env, TBFREQ);
119 qemu_register_reset(ppc_heathrow_reset, cpu);
120 }
121
122 /* allocate RAM */
123 if (machine->ram_size > 2047 * MiB) {
124 error_report("Too much memory for this machine: %" PRId64 " MB, "
125 "maximum 2047 MB", machine->ram_size / MiB);
126 exit(1);
127 }
128
129 memory_region_add_subregion(get_system_memory(), 0, machine->ram);
130
131 /* allocate and load firmware ROM */
132 memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
133 &error_fatal);
134 memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
135
136 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
137 if (filename) {
138 /* Load OpenBIOS (ELF) */
139 bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
140 NULL, NULL, ELFDATA2MSB, PPC_ELF_MACHINE, 0, 0);
141 /* Unfortunately, load_elf sign-extends reading elf32 */
142 bios_addr = (uint32_t)bios_addr;
143
144 if (bios_size <= 0) {
145 /* or if could not load ELF try loading a binary ROM image */
146 bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE,
147 &error_fatal);
148 bios_addr = PROM_BASE;
149 }
150 g_free(filename);
151 }
152 if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
153 error_report("could not load PowerPC bios '%s'", bios_name);
154 exit(1);
155 }
156
157 if (machine->kernel_filename) {
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, ELFDATA2MSB, 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 true, TARGET_PAGE_SIZE);
166 }
167 if (kernel_size < 0) {
168 kernel_size = load_image_targphys(machine->kernel_filename,
169 kernel_base,
170 machine->ram_size - kernel_base,
171 &error_fatal);
172 }
173 /* load initrd */
174 if (machine->initrd_filename) {
175 initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
176 KERNEL_GAP);
177 initrd_size = load_image_targphys(machine->initrd_filename,
178 initrd_base,
179 machine->ram_size - initrd_base,
180 &error_fatal);
181 cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
182 } else {
183 cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
184 }
185 ppc_boot_device = 'm';
186 } else {
187 ppc_boot_device = '\0';
188 for (i = 0; machine->boot_config.order[i] != '\0'; i++) {
189 /*
190 * TOFIX: for now, the second IDE channel is not properly
191 * used by OHW. The Mac floppy disk are not emulated.
192 * For now, OHW cannot boot from the network.
193 */
194 #if 0
195 if (machine->boot_config.order[i] >= 'a' &&
196 machine->boot_config.order[i] <= 'f') {
197 ppc_boot_device = machine->boot_config.order[i];
198 break;
199 }
200 #else
201 if (machine->boot_config.order[i] >= 'c' &&
202 machine->boot_config.order[i] <= 'd') {
203 ppc_boot_device = machine->boot_config.order[i];
204 break;
205 }
206 #endif
207 }
208 if (ppc_boot_device == '\0') {
209 error_report("No valid boot device for G3 Beige machine");
210 exit(1);
211 }
212 }
213
214 /* Grackle PCI host bridge */
215 grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
216 qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
217 s = SYS_BUS_DEVICE(grackle_dev);
218 sysbus_realize_and_unref(s, &error_fatal);
219
220 sysbus_mmio_map(s, 0, GRACKLE_BASE);
221 sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
222 /* PCI hole */
223 memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
224 sysbus_mmio_get_region(s, 2));
225 /* Register 2 MB of ISA IO space */
226 memory_region_add_subregion(get_system_memory(), 0xfe000000,
227 sysbus_mmio_get_region(s, 3));
228
229 pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
230
231 /* MacIO */
232 macio = OBJECT(pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO));
233 qdev_prop_set_uint64(DEVICE(macio), "frequency", tbfreq);
234
235 dev = DEVICE(object_resolve_path_component(macio, "escc"));
236 qdev_prop_set_chr(dev, "chrA", serial_hd(0));
237 qdev_prop_set_chr(dev, "chrB", serial_hd(1));
238
239 dinfo = drive_get(IF_MTD, 0, 0);
240 if (dinfo) {
241 dev = DEVICE(object_resolve_path_component(macio, "nvram"));
242 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo));
243 }
244
245 pci_realize_and_unref(PCI_DEVICE(macio), pci_bus, &error_fatal);
246
247 pic_dev = DEVICE(object_resolve_path_component(macio, "pic"));
248 for (i = 0; i < 4; i++) {
249 qdev_connect_gpio_out(grackle_dev, i,
250 qdev_get_gpio_in(pic_dev, 0x15 + i));
251 }
252
253 /* Connect the heathrow PIC outputs to the 6xx bus */
254 for (i = 0; i < machine->smp.cpus; i++) {
255 switch (PPC_INPUT(env)) {
256 case PPC_FLAGS_INPUT_6xx:
257 /* XXX: we register only 1 output pin for heathrow PIC */
258 qdev_connect_gpio_out(pic_dev, 0,
259 qdev_get_gpio_in(DEVICE(cpu), PPC6xx_INPUT_INT));
260 break;
261 default:
262 error_report("Bus model not supported on OldWorld Mac machine");
263 exit(1);
264 }
265 }
266
267 pci_vga_init(pci_bus);
268
269 pci_init_nic_devices(pci_bus, mc->default_nic);
270
271 /* MacIO IDE */
272 ide_drive_get(hd, ARRAY_SIZE(hd));
273 macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[0]"));
274 macio_ide_init_drives(macio_ide, hd);
275
276 macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[1]"));
277 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
278
279 /* MacIO CUDA/ADB */
280 dev = DEVICE(object_resolve_path_component(macio, "cuda"));
281 adb_bus = qdev_get_child_bus(dev, "adb.0");
282 dev = qdev_new(TYPE_ADB_KEYBOARD);
283 qdev_realize_and_unref(dev, adb_bus, &error_fatal);
284 dev = qdev_new(TYPE_ADB_MOUSE);
285 qdev_realize_and_unref(dev, adb_bus, &error_fatal);
286
287 if (machine_usb(machine)) {
288 pci_create_simple(pci_bus, -1, "pci-ohci");
289 }
290
291 if (!graphic_width) {
292 graphic_width = 800;
293 }
294 if (!graphic_height) {
295 graphic_height = 600;
296 }
297 if (!graphic_depth) {
298 graphic_depth = 32;
299 }
300 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) {
301 graphic_depth = 15;
302 }
303
304 /* No PCI init: the BIOS will do it */
305
306 dev = qdev_new(TYPE_FW_CFG_MEM);
307 fw_cfg = FW_CFG(dev);
308 qdev_prop_set_uint32(dev, "data_width", 1);
309 qdev_prop_set_bit(dev, "dma_enabled", false);
310 object_property_add_child(OBJECT(machine), TYPE_FW_CFG, OBJECT(fw_cfg));
311 s = SYS_BUS_DEVICE(dev);
312 sysbus_realize_and_unref(s, &error_fatal);
313 sysbus_mmio_map(s, 0, CFG_ADDR);
314 sysbus_mmio_map(s, 1, CFG_ADDR + 2);
315
316 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)machine->smp.cpus);
317 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
318 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size);
319 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
320 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
321 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
322 if (machine->kernel_cmdline) {
323 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
324 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
325 machine->kernel_cmdline);
326 } else {
327 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
328 }
329 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
330 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
331 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
332
333 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
334 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
335 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
336
337 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
338 if (kvm_enabled()) {
339 uint8_t *hypercall;
340
341 hypercall = g_malloc(16);
342 kvmppc_get_hypercall(env, hypercall, 16);
343 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
344 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
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 gchar *ndrv_file;
355 gsize ndrv_size;
356
357 if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
358 fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
359 }
360 g_free(filename);
361 }
362
363 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
364 }
365
366 /*
367 * Implementation of an interface to adjust firmware path
368 * for the bootindex property handling.
369 */
370 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
371 DeviceState *dev)
372 {
373 PCIDevice *pci;
374 MACIOIDEState *macio_ide;
375
376 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
377 pci = PCI_DEVICE(dev);
378 return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
379 }
380
381 if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
382 macio_ide = MACIO_IDE(dev);
383 return g_strdup_printf("ata-3@%x", macio_ide->addr);
384 }
385
386 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
387 return g_strdup("disk");
388 }
389
390 if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
391 return g_strdup("cdrom");
392 }
393
394 if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
395 return g_strdup("disk");
396 }
397
398 return NULL;
399 }
400
401 static int heathrow_kvm_type(MachineState *machine, const char *arg)
402 {
403 /* Always force PR KVM */
404 return 2;
405 }
406
407 static void heathrow_class_init(ObjectClass *oc, const void *data)
408 {
409 MachineClass *mc = MACHINE_CLASS(oc);
410 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
411
412 mc->desc = "Heathrow based PowerMac";
413 mc->init = ppc_heathrow_init;
414 mc->block_default_type = IF_IDE;
415 /* SMP is not supported currently */
416 mc->max_cpus = 1;
417 #ifndef TARGET_PPC64
418 mc->is_default = true;
419 #endif
420 /* TOFIX "cad" when Mac floppy is implemented */
421 mc->default_boot_order = "cd";
422 mc->kvm_type = heathrow_kvm_type;
423 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
424 mc->default_display = "std";
425 mc->default_nic = "ne2k_pci";
426 mc->ignore_boot_device_suffixes = true;
427 mc->default_ram_id = "ppc_heathrow.ram";
428 fwc->get_dev_path = heathrow_fw_dev_path;
429 }
430
431 static const TypeInfo ppc_heathrow_machine_info = {
432 .name = MACHINE_TYPE_NAME("g3beige"),
433 .parent = TYPE_MACHINE,
434 .class_init = heathrow_class_init,
435 .interfaces = (const InterfaceInfo[]) {
436 { TYPE_FW_PATH_PROVIDER },
437 { }
438 },
439 };
440
441 static void ppc_heathrow_register_types(void)
442 {
443 type_register_static(&ppc_heathrow_machine_info);
444 }
445
446 type_init(ppc_heathrow_register_types);