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
30 #include "mac_dbdma.h"
45 #include "exec-memory.h"
48 #define CFG_ADDR 0xf0000510
50 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
52 fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
57 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
59 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
62 static target_phys_addr_t round_page(target_phys_addr_t addr)
64 return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
67 static void ppc_heathrow_reset(void *opaque)
69 PowerPCCPU *cpu = opaque;
74 static void ppc_heathrow_init (ram_addr_t ram_size,
75 const char *boot_device,
76 const char *kernel_filename,
77 const char *kernel_cmdline,
78 const char *initrd_filename,
79 const char *cpu_model)
81 MemoryRegion *sysmem = get_system_memory();
82 PowerPCCPU *cpu = NULL;
83 CPUPPCState *env = NULL;
85 qemu_irq *pic, **heathrow_irqs;
87 MemoryRegion *ram = g_new(MemoryRegion, 1);
88 MemoryRegion *bios = g_new(MemoryRegion, 1);
89 uint32_t kernel_base, initrd_base, cmdline_base = 0;
90 int32_t kernel_size, initrd_size;
94 MemoryRegion *pic_mem, *dbdma_mem, *cuda_mem;
95 MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1), *ide_mem[2];
96 uint16_t ppc_boot_device;
97 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
101 linux_boot = (kernel_filename != NULL);
104 if (cpu_model == NULL)
106 for (i = 0; i < smp_cpus; i++) {
107 cpu = cpu_ppc_init(cpu_model);
109 fprintf(stderr, "Unable to find PowerPC CPU definition\n");
114 /* Set time-base frequency to 16.6 Mhz */
115 cpu_ppc_tb_init(env, 16600000UL);
116 qemu_register_reset(ppc_heathrow_reset, cpu);
120 if (ram_size > (2047 << 20)) {
122 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
123 ((unsigned int)ram_size / (1 << 20)));
127 memory_region_init_ram(ram, "ppc_heathrow.ram", ram_size);
128 vmstate_register_ram_global(ram);
129 memory_region_add_subregion(sysmem, 0, ram);
131 /* allocate and load BIOS */
132 memory_region_init_ram(bios, "ppc_heathrow.bios", BIOS_SIZE);
133 vmstate_register_ram_global(bios);
134 if (bios_name == NULL)
135 bios_name = PROM_FILENAME;
136 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
137 memory_region_set_readonly(bios, true);
138 memory_region_add_subregion(sysmem, PROM_ADDR, bios);
140 /* Load OpenBIOS (ELF) */
142 bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
148 if (bios_size < 0 || bios_size > BIOS_SIZE) {
149 hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
154 uint64_t lowaddr = 0;
162 kernel_base = KERNEL_LOAD_ADDR;
163 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
164 NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0);
166 kernel_size = load_aout(kernel_filename, kernel_base,
167 ram_size - kernel_base, bswap_needed,
170 kernel_size = load_image_targphys(kernel_filename,
172 ram_size - kernel_base);
173 if (kernel_size < 0) {
174 hw_error("qemu: could not load kernel '%s'\n",
179 if (initrd_filename) {
180 initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
181 initrd_size = load_image_targphys(initrd_filename, initrd_base,
182 ram_size - initrd_base);
183 if (initrd_size < 0) {
184 hw_error("qemu: could not load initial ram disk '%s'\n",
188 cmdline_base = round_page(initrd_base + initrd_size);
192 cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
194 ppc_boot_device = 'm';
200 ppc_boot_device = '\0';
201 for (i = 0; boot_device[i] != '\0'; i++) {
202 /* TOFIX: for now, the second IDE channel is not properly
203 * used by OHW. The Mac floppy disk are not emulated.
204 * For now, OHW cannot boot from the network.
207 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
208 ppc_boot_device = boot_device[i];
212 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
213 ppc_boot_device = boot_device[i];
218 if (ppc_boot_device == '\0') {
219 fprintf(stderr, "No valid boot device for G3 Beige machine\n");
224 /* Register 2 MB of ISA IO space */
225 isa_mmio_init(0xfe000000, 0x00200000);
227 /* XXX: we register only 1 output pin for heathrow PIC */
228 heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
230 g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
231 /* Connect the heathrow PIC outputs to the 6xx bus */
232 for (i = 0; i < smp_cpus; i++) {
233 switch (PPC_INPUT(env)) {
234 case PPC_FLAGS_INPUT_6xx:
235 heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
236 heathrow_irqs[i][0] =
237 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
240 hw_error("Bus model not supported on OldWorld Mac machine\n");
244 /* init basic PC hardware */
245 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
246 hw_error("Only 6xx bus is supported on heathrow machine\n");
248 pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
249 pci_bus = pci_grackle_init(0xfec00000, pic,
252 pci_vga_init(pci_bus);
254 escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
255 serial_hds[1], ESCC_CLOCK, 4);
256 memory_region_init_alias(escc_bar, "escc-bar",
257 escc_mem, 0, memory_region_size(escc_mem));
259 for(i = 0; i < nb_nics; i++)
260 pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL);
263 ide_drive_get(hd, MAX_IDE_BUS);
265 /* First IDE channel is a MAC IDE on the MacIO bus */
266 dbdma = DBDMA_init(&dbdma_mem);
268 ide_mem[1] = pmac_ide_init(hd, pic[0x0D], dbdma, 0x16, pic[0x02]);
270 /* Second IDE channel is a CMD646 on the PCI bus */
271 hd[0] = hd[MAX_IDE_DEVS];
272 hd[1] = hd[MAX_IDE_DEVS + 1];
273 hd[3] = hd[2] = NULL;
274 pci_cmd646_ide_init(pci_bus, hd, 0);
276 /* cuda also initialize ADB */
277 cuda_init(&cuda_mem, pic[0x12]);
279 adb_kbd_init(&adb_bus);
280 adb_mouse_init(&adb_bus);
282 nvr = macio_nvram_init(0x2000, 4);
283 pmac_format_nvram_partition(nvr, 0x2000);
285 macio_init(pci_bus, PCI_DEVICE_ID_APPLE_343S1201, 1, pic_mem,
286 dbdma_mem, cuda_mem, nvr, 2, ide_mem, escc_bar);
289 pci_create_simple(pci_bus, -1, "pci-ohci");
292 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
295 /* No PCI init: the BIOS will do it */
297 fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
298 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
299 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
300 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
301 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
302 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
303 if (kernel_cmdline) {
304 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
305 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
307 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
309 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
310 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
311 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
313 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
314 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
315 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
317 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
322 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());
323 hypercall = g_malloc(16);
324 kvmppc_get_hypercall(env, hypercall, 16);
325 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
326 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
329 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, get_ticks_per_sec());
332 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
335 static QEMUMachine heathrow_machine = {
337 .desc = "Heathrow based PowerMAC",
338 .init = ppc_heathrow_init,
339 .max_cpus = MAX_CPUS,
345 static void heathrow_machine_init(void)
347 qemu_register_machine(&heathrow_machine);
350 machine_init(heathrow_machine_init);