3 * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator
5 * Copyright (c) 2004-2007 Fabrice Bellard
6 * Copyright (c) 2007 Jocelyn Mayer
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:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
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
27 #include "hw/ppc/ppc.h"
29 #include "hw/input/adb.h"
30 #include "hw/timer/m48t59.h"
31 #include "sysemu/sysemu.h"
33 #include "hw/isa/isa.h"
34 #include "hw/pci/pci.h"
35 #include "hw/boards.h"
36 #include "hw/nvram/fw_cfg.h"
37 #include "hw/char/escc.h"
39 #include "hw/loader.h"
41 #include "sysemu/kvm.h"
43 #include "sysemu/blockdev.h"
44 #include "exec/address-spaces.h"
47 #define CFG_ADDR 0xf0000510
48 #define TBFREQ 16600000UL
49 #define CLOCKFREQ 266000000UL
50 #define BUSFREQ 66000000UL
52 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
54 fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
59 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
61 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
64 static hwaddr round_page(hwaddr addr)
66 return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
69 static void ppc_heathrow_reset(void *opaque)
71 PowerPCCPU *cpu = opaque;
76 static void ppc_heathrow_init(MachineState *machine)
78 ram_addr_t ram_size = machine->ram_size;
79 const char *cpu_model = machine->cpu_model;
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;
88 qemu_irq *pic, **heathrow_irqs;
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;
97 MACIOIDEState *macio_ide;
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];
107 linux_boot = (kernel_filename != NULL);
110 if (cpu_model == NULL)
112 for (i = 0; i < smp_cpus; i++) {
113 cpu = cpu_ppc_init(cpu_model);
115 fprintf(stderr, "Unable to find PowerPC CPU definition\n");
120 /* Set time-base frequency to 16.6 Mhz */
121 cpu_ppc_tb_init(env, TBFREQ);
122 qemu_register_reset(ppc_heathrow_reset, cpu);
126 if (ram_size > (2047 << 20)) {
128 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
129 ((unsigned int)ram_size / (1 << 20)));
133 memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
135 memory_region_add_subregion(sysmem, 0, ram);
137 /* allocate and load BIOS */
138 memory_region_allocate_system_memory(bios, NULL, "ppc_heathrow.bios",
140 if (bios_name == NULL)
141 bios_name = PROM_FILENAME;
142 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
143 memory_region_set_readonly(bios, true);
144 memory_region_add_subregion(sysmem, PROM_ADDR, bios);
146 /* Load OpenBIOS (ELF) */
148 bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
154 if (bios_size < 0 || bios_size > BIOS_SIZE) {
155 hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
160 uint64_t lowaddr = 0;
168 kernel_base = KERNEL_LOAD_ADDR;
169 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
170 NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0);
172 kernel_size = load_aout(kernel_filename, kernel_base,
173 ram_size - kernel_base, bswap_needed,
176 kernel_size = load_image_targphys(kernel_filename,
178 ram_size - kernel_base);
179 if (kernel_size < 0) {
180 hw_error("qemu: could not load kernel '%s'\n",
185 if (initrd_filename) {
186 initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
187 initrd_size = load_image_targphys(initrd_filename, initrd_base,
188 ram_size - initrd_base);
189 if (initrd_size < 0) {
190 hw_error("qemu: could not load initial ram disk '%s'\n",
194 cmdline_base = round_page(initrd_base + initrd_size);
198 cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
200 ppc_boot_device = 'm';
206 ppc_boot_device = '\0';
207 for (i = 0; boot_device[i] != '\0'; i++) {
208 /* TOFIX: for now, the second IDE channel is not properly
209 * used by OHW. The Mac floppy disk are not emulated.
210 * For now, OHW cannot boot from the network.
213 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
214 ppc_boot_device = boot_device[i];
218 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
219 ppc_boot_device = boot_device[i];
224 if (ppc_boot_device == '\0') {
225 fprintf(stderr, "No valid boot device for G3 Beige machine\n");
230 /* Register 2 MB of ISA IO space */
231 memory_region_init_alias(isa, NULL, "isa_mmio",
232 get_system_io(), 0, 0x00200000);
233 memory_region_add_subregion(sysmem, 0xfe000000, isa);
235 /* XXX: we register only 1 output pin for heathrow PIC */
236 heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
238 g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
239 /* Connect the heathrow PIC outputs to the 6xx bus */
240 for (i = 0; i < smp_cpus; i++) {
241 switch (PPC_INPUT(env)) {
242 case PPC_FLAGS_INPUT_6xx:
243 heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
244 heathrow_irqs[i][0] =
245 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
248 hw_error("Bus model not supported on OldWorld Mac machine\n");
252 /* init basic PC hardware */
253 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
254 hw_error("Only 6xx bus is supported on heathrow machine\n");
256 pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
257 pci_bus = pci_grackle_init(0xfec00000, pic,
260 pci_vga_init(pci_bus);
262 escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
263 serial_hds[1], ESCC_CLOCK, 4);
264 memory_region_init_alias(escc_bar, NULL, "escc-bar",
265 escc_mem, 0, memory_region_size(escc_mem));
267 for(i = 0; i < nb_nics; i++)
268 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
271 ide_drive_get(hd, MAX_IDE_BUS);
273 macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
275 qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
276 qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
277 qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
278 qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
279 qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
280 macio_init(macio, pic_mem, escc_bar);
282 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
284 macio_ide_init_drives(macio_ide, hd);
286 macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
288 macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
290 dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
291 adb_bus = qdev_get_child_bus(dev, "adb.0");
292 dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
293 qdev_init_nofail(dev);
294 dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
295 qdev_init_nofail(dev);
297 if (usb_enabled(false)) {
298 pci_create_simple(pci_bus, -1, "pci-ohci");
301 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
304 /* No PCI init: the BIOS will do it */
306 fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
307 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
308 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
309 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
310 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
311 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
312 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
313 if (kernel_cmdline) {
314 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
315 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
317 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
319 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
320 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
321 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
323 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
324 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
325 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
327 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
332 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());
333 hypercall = g_malloc(16);
334 kvmppc_get_hypercall(env, hypercall, 16);
335 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
336 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
339 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, TBFREQ);
341 /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
342 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
343 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
345 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
348 static QEMUMachine heathrow_machine = {
350 .desc = "Heathrow based PowerMAC",
351 .init = ppc_heathrow_init,
352 .max_cpus = MAX_CPUS,
356 .default_boot_order = "cd", /* TOFIX "cad" when Mac floppy is implemented */
359 static void heathrow_machine_init(void)
361 qemu_register_machine(&heathrow_machine);
364 machine_init(heathrow_machine_init);