Merge tag 'pull-la-20220805' of https://gitlab.com/rth7680/qemu into staging
[qemu.git] / hw / ppc / pegasos2.c
1 /*
2 * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
3 *
4 * Copyright (c) 2018-2021 BALATON Zoltan
5 *
6 * This work is licensed under the GNU GPL license version 2 or later.
7 *
8 */
9
10 #include "qemu/osdep.h"
11 #include "qemu/units.h"
12 #include "qapi/error.h"
13 #include "hw/hw.h"
14 #include "hw/ppc/ppc.h"
15 #include "hw/sysbus.h"
16 #include "hw/pci/pci_host.h"
17 #include "hw/irq.h"
18 #include "hw/pci-host/mv64361.h"
19 #include "hw/isa/vt82c686.h"
20 #include "hw/ide/pci.h"
21 #include "hw/i2c/smbus_eeprom.h"
22 #include "hw/qdev-properties.h"
23 #include "sysemu/reset.h"
24 #include "sysemu/runstate.h"
25 #include "sysemu/qtest.h"
26 #include "hw/boards.h"
27 #include "hw/loader.h"
28 #include "hw/fw-path-provider.h"
29 #include "elf.h"
30 #include "qemu/log.h"
31 #include "qemu/error-report.h"
32 #include "sysemu/kvm.h"
33 #include "kvm_ppc.h"
34 #include "exec/address-spaces.h"
35 #include "qom/qom-qobject.h"
36 #include "qapi/qmp/qdict.h"
37 #include "trace.h"
38 #include "qemu/datadir.h"
39 #include "sysemu/device_tree.h"
40 #include "hw/ppc/vof.h"
41
42 #include <libfdt.h>
43
44 #define PROM_FILENAME "vof.bin"
45 #define PROM_ADDR 0xfff00000
46 #define PROM_SIZE 0x80000
47
48 #define KVMPPC_HCALL_BASE 0xf000
49 #define KVMPPC_H_RTAS (KVMPPC_HCALL_BASE + 0x0)
50 #define KVMPPC_H_VOF_CLIENT (KVMPPC_HCALL_BASE + 0x5)
51
52 #define H_SUCCESS 0
53 #define H_PRIVILEGE -3 /* Caller not privileged */
54 #define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
55
56 #define BUS_FREQ_HZ 133333333
57
58 #define PCI0_CFG_ADDR 0xcf8
59 #define PCI0_MEM_BASE 0xc0000000
60 #define PCI0_MEM_SIZE 0x20000000
61 #define PCI0_IO_BASE 0xf8000000
62 #define PCI0_IO_SIZE 0x10000
63
64 #define PCI1_CFG_ADDR 0xc78
65 #define PCI1_MEM_BASE 0x80000000
66 #define PCI1_MEM_SIZE 0x40000000
67 #define PCI1_IO_BASE 0xfe000000
68 #define PCI1_IO_SIZE 0x10000
69
70 #define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2")
71 OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE)
72
73 struct Pegasos2MachineState {
74 MachineState parent_obj;
75 PowerPCCPU *cpu;
76 DeviceState *mv;
77 Vof *vof;
78 void *fdt_blob;
79 uint64_t kernel_addr;
80 uint64_t kernel_entry;
81 uint64_t kernel_size;
82 };
83
84 static void *build_fdt(MachineState *machine, int *fdt_size);
85
86 static void pegasos2_cpu_reset(void *opaque)
87 {
88 PowerPCCPU *cpu = opaque;
89 Pegasos2MachineState *pm = PEGASOS2_MACHINE(current_machine);
90
91 cpu_reset(CPU(cpu));
92 cpu->env.spr[SPR_HID1] = 7ULL << 28;
93 if (pm->vof) {
94 cpu->env.gpr[1] = 2 * VOF_STACK_SIZE - 0x20;
95 cpu->env.nip = 0x100;
96 }
97 }
98
99 static void pegasos2_init(MachineState *machine)
100 {
101 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
102 CPUPPCState *env;
103 MemoryRegion *rom = g_new(MemoryRegion, 1);
104 PCIBus *pci_bus;
105 PCIDevice *dev;
106 I2CBus *i2c_bus;
107 const char *fwname = machine->firmware ?: PROM_FILENAME;
108 char *filename;
109 int sz;
110 uint8_t *spd_data;
111
112 /* init CPU */
113 pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
114 env = &pm->cpu->env;
115 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
116 error_report("Incompatible CPU, only 6xx bus supported");
117 exit(1);
118 }
119
120 /* Set time-base frequency */
121 cpu_ppc_tb_init(env, BUS_FREQ_HZ / 4);
122 qemu_register_reset(pegasos2_cpu_reset, pm->cpu);
123
124 /* RAM */
125 if (machine->ram_size > 2 * GiB) {
126 error_report("RAM size more than 2 GiB is not supported");
127 exit(1);
128 }
129 memory_region_add_subregion(get_system_memory(), 0, machine->ram);
130
131 /* allocate and load firmware */
132 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname);
133 if (!filename) {
134 error_report("Could not find firmware '%s'", fwname);
135 exit(1);
136 }
137 if (!machine->firmware && !pm->vof) {
138 pm->vof = g_malloc0(sizeof(*pm->vof));
139 }
140 memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal);
141 memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom);
142 sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1,
143 PPC_ELF_MACHINE, 0, 0);
144 if (sz <= 0) {
145 sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE);
146 }
147 if (sz <= 0 || sz > PROM_SIZE) {
148 error_report("Could not load firmware '%s'", filename);
149 exit(1);
150 }
151 g_free(filename);
152 if (pm->vof) {
153 pm->vof->fw_size = sz;
154 }
155
156 /* Marvell Discovery II system controller */
157 pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
158 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]));
159 pci_bus = mv64361_get_pci_bus(pm->mv, 1);
160
161 /* VIA VT8231 South Bridge (multifunction PCI device) */
162 /* VT8231 function 0: PCI-to-ISA Bridge */
163 dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
164 TYPE_VT8231_ISA);
165 qdev_connect_gpio_out(DEVICE(dev), 0,
166 qdev_get_gpio_in_named(pm->mv, "gpp", 31));
167
168 /* VT8231 function 1: IDE Controller */
169 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide");
170 pci_ide_create_devs(dev);
171
172 /* VT8231 function 2-3: USB Ports */
173 pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci");
174 pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci");
175
176 /* VT8231 function 4: Power Management Controller */
177 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM);
178 i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
179 spd_data = spd_data_generate(DDR, machine->ram_size);
180 smbus_eeprom_init_one(i2c_bus, 0x57, spd_data);
181
182 /* VT8231 function 5-6: AC97 Audio & Modem */
183 pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97);
184 pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97);
185
186 /* other PC hardware */
187 pci_vga_init(pci_bus);
188
189 if (machine->kernel_filename) {
190 sz = load_elf(machine->kernel_filename, NULL, NULL, NULL,
191 &pm->kernel_entry, &pm->kernel_addr, NULL, NULL, 1,
192 PPC_ELF_MACHINE, 0, 0);
193 if (sz <= 0) {
194 error_report("Could not load kernel '%s'",
195 machine->kernel_filename);
196 exit(1);
197 }
198 pm->kernel_size = sz;
199 if (!pm->vof) {
200 warn_report("Option -kernel may be ineffective with -bios.");
201 }
202 } else if (pm->vof && !qtest_enabled()) {
203 warn_report("Using Virtual OpenFirmware but no -kernel option.");
204 }
205
206 if (!pm->vof && machine->kernel_cmdline && machine->kernel_cmdline[0]) {
207 warn_report("Option -append may be ineffective with -bios.");
208 }
209 }
210
211 static uint32_t pegasos2_mv_reg_read(Pegasos2MachineState *pm,
212 uint32_t addr, uint32_t len)
213 {
214 MemoryRegion *r = sysbus_mmio_get_region(SYS_BUS_DEVICE(pm->mv), 0);
215 uint64_t val = 0xffffffffULL;
216 memory_region_dispatch_read(r, addr, &val, size_memop(len) | MO_LE,
217 MEMTXATTRS_UNSPECIFIED);
218 return val;
219 }
220
221 static void pegasos2_mv_reg_write(Pegasos2MachineState *pm, uint32_t addr,
222 uint32_t len, uint32_t val)
223 {
224 MemoryRegion *r = sysbus_mmio_get_region(SYS_BUS_DEVICE(pm->mv), 0);
225 memory_region_dispatch_write(r, addr, val, size_memop(len) | MO_LE,
226 MEMTXATTRS_UNSPECIFIED);
227 }
228
229 static uint32_t pegasos2_pci_config_read(Pegasos2MachineState *pm, int bus,
230 uint32_t addr, uint32_t len)
231 {
232 hwaddr pcicfg = bus ? PCI1_CFG_ADDR : PCI0_CFG_ADDR;
233 uint64_t val = 0xffffffffULL;
234
235 if (len <= 4) {
236 pegasos2_mv_reg_write(pm, pcicfg, 4, addr | BIT(31));
237 val = pegasos2_mv_reg_read(pm, pcicfg + 4, len);
238 }
239 return val;
240 }
241
242 static void pegasos2_pci_config_write(Pegasos2MachineState *pm, int bus,
243 uint32_t addr, uint32_t len, uint32_t val)
244 {
245 hwaddr pcicfg = bus ? PCI1_CFG_ADDR : PCI0_CFG_ADDR;
246
247 pegasos2_mv_reg_write(pm, pcicfg, 4, addr | BIT(31));
248 pegasos2_mv_reg_write(pm, pcicfg + 4, len, val);
249 }
250
251 static void pegasos2_machine_reset(MachineState *machine)
252 {
253 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
254 void *fdt;
255 uint64_t d[2];
256 int sz;
257
258 qemu_devices_reset();
259 if (!pm->vof) {
260 return; /* Firmware should set up machine so nothing to do */
261 }
262
263 /* Otherwise, set up devices that board firmware would normally do */
264 pegasos2_mv_reg_write(pm, 0, 4, 0x28020ff);
265 pegasos2_mv_reg_write(pm, 0x278, 4, 0xa31fc);
266 pegasos2_mv_reg_write(pm, 0xf300, 4, 0x11ff0400);
267 pegasos2_mv_reg_write(pm, 0xf10c, 4, 0x80000000);
268 pegasos2_mv_reg_write(pm, 0x1c, 4, 0x8000000);
269 pegasos2_pci_config_write(pm, 0, PCI_COMMAND, 2, PCI_COMMAND_IO |
270 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
271 pegasos2_pci_config_write(pm, 1, PCI_COMMAND, 2, PCI_COMMAND_IO |
272 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
273
274 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 0) << 8) |
275 PCI_INTERRUPT_LINE, 2, 0x9);
276 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 0) << 8) |
277 0x50, 1, 0x2);
278
279 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) |
280 PCI_INTERRUPT_LINE, 2, 0x109);
281 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) |
282 PCI_CLASS_PROG, 1, 0xf);
283 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) |
284 0x40, 1, 0xb);
285 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) |
286 0x50, 4, 0x17171717);
287 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 1) << 8) |
288 PCI_COMMAND, 2, 0x87);
289
290 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 2) << 8) |
291 PCI_INTERRUPT_LINE, 2, 0x409);
292
293 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 3) << 8) |
294 PCI_INTERRUPT_LINE, 2, 0x409);
295
296 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) |
297 PCI_INTERRUPT_LINE, 2, 0x9);
298 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) |
299 0x48, 4, 0xf00);
300 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) |
301 0x40, 4, 0x558020);
302 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 4) << 8) |
303 0x90, 4, 0xd00);
304
305 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 5) << 8) |
306 PCI_INTERRUPT_LINE, 2, 0x309);
307
308 pegasos2_pci_config_write(pm, 1, (PCI_DEVFN(12, 6) << 8) |
309 PCI_INTERRUPT_LINE, 2, 0x309);
310
311 /* Device tree and VOF set up */
312 vof_init(pm->vof, machine->ram_size, &error_fatal);
313 if (vof_claim(pm->vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE) == -1) {
314 error_report("Memory allocation for stack failed");
315 exit(1);
316 }
317 if (pm->kernel_size &&
318 vof_claim(pm->vof, pm->kernel_addr, pm->kernel_size, 0) == -1) {
319 error_report("Memory for kernel is in use");
320 exit(1);
321 }
322 fdt = build_fdt(machine, &sz);
323 /* FIXME: VOF assumes entry is same as load address */
324 d[0] = cpu_to_be64(pm->kernel_entry);
325 d[1] = cpu_to_be64(pm->kernel_size - (pm->kernel_entry - pm->kernel_addr));
326 qemu_fdt_setprop(fdt, "/chosen", "qemu,boot-kernel", d, sizeof(d));
327
328 qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
329 g_free(pm->fdt_blob);
330 pm->fdt_blob = fdt;
331
332 vof_build_dt(fdt, pm->vof);
333 vof_client_open_store(fdt, pm->vof, "/chosen", "stdout", "/failsafe");
334 pm->cpu->vhyp = PPC_VIRTUAL_HYPERVISOR(machine);
335 }
336
337 enum pegasos2_rtas_tokens {
338 RTAS_RESTART_RTAS = 0,
339 RTAS_NVRAM_FETCH = 1,
340 RTAS_NVRAM_STORE = 2,
341 RTAS_GET_TIME_OF_DAY = 3,
342 RTAS_SET_TIME_OF_DAY = 4,
343 RTAS_EVENT_SCAN = 6,
344 RTAS_CHECK_EXCEPTION = 7,
345 RTAS_READ_PCI_CONFIG = 8,
346 RTAS_WRITE_PCI_CONFIG = 9,
347 RTAS_DISPLAY_CHARACTER = 10,
348 RTAS_SET_INDICATOR = 11,
349 RTAS_POWER_OFF = 17,
350 RTAS_SUSPEND = 18,
351 RTAS_HIBERNATE = 19,
352 RTAS_SYSTEM_REBOOT = 20,
353 };
354
355 static target_ulong pegasos2_rtas(PowerPCCPU *cpu, Pegasos2MachineState *pm,
356 target_ulong args_real)
357 {
358 AddressSpace *as = CPU(cpu)->as;
359 uint32_t token = ldl_be_phys(as, args_real);
360 uint32_t nargs = ldl_be_phys(as, args_real + 4);
361 uint32_t nrets = ldl_be_phys(as, args_real + 8);
362 uint32_t args = args_real + 12;
363 uint32_t rets = args_real + 12 + nargs * 4;
364
365 if (nrets < 1) {
366 qemu_log_mask(LOG_GUEST_ERROR, "Too few return values in RTAS call\n");
367 return H_PARAMETER;
368 }
369 switch (token) {
370 case RTAS_GET_TIME_OF_DAY:
371 {
372 QObject *qo = object_property_get_qobject(qdev_get_machine(),
373 "rtc-time", &error_fatal);
374 QDict *qd = qobject_to(QDict, qo);
375
376 if (nargs != 0 || nrets != 8 || !qd) {
377 stl_be_phys(as, rets, -1);
378 qobject_unref(qo);
379 return H_PARAMETER;
380 }
381
382 stl_be_phys(as, rets, 0);
383 stl_be_phys(as, rets + 4, qdict_get_int(qd, "tm_year") + 1900);
384 stl_be_phys(as, rets + 8, qdict_get_int(qd, "tm_mon") + 1);
385 stl_be_phys(as, rets + 12, qdict_get_int(qd, "tm_mday"));
386 stl_be_phys(as, rets + 16, qdict_get_int(qd, "tm_hour"));
387 stl_be_phys(as, rets + 20, qdict_get_int(qd, "tm_min"));
388 stl_be_phys(as, rets + 24, qdict_get_int(qd, "tm_sec"));
389 stl_be_phys(as, rets + 28, 0);
390 qobject_unref(qo);
391 return H_SUCCESS;
392 }
393 case RTAS_READ_PCI_CONFIG:
394 {
395 uint32_t addr, len, val;
396
397 if (nargs != 2 || nrets != 2) {
398 stl_be_phys(as, rets, -1);
399 return H_PARAMETER;
400 }
401 addr = ldl_be_phys(as, args);
402 len = ldl_be_phys(as, args + 4);
403 val = pegasos2_pci_config_read(pm, !(addr >> 24),
404 addr & 0x0fffffff, len);
405 stl_be_phys(as, rets, 0);
406 stl_be_phys(as, rets + 4, val);
407 return H_SUCCESS;
408 }
409 case RTAS_WRITE_PCI_CONFIG:
410 {
411 uint32_t addr, len, val;
412
413 if (nargs != 3 || nrets != 1) {
414 stl_be_phys(as, rets, -1);
415 return H_PARAMETER;
416 }
417 addr = ldl_be_phys(as, args);
418 len = ldl_be_phys(as, args + 4);
419 val = ldl_be_phys(as, args + 8);
420 pegasos2_pci_config_write(pm, !(addr >> 24),
421 addr & 0x0fffffff, len, val);
422 stl_be_phys(as, rets, 0);
423 return H_SUCCESS;
424 }
425 case RTAS_DISPLAY_CHARACTER:
426 if (nargs != 1 || nrets != 1) {
427 stl_be_phys(as, rets, -1);
428 return H_PARAMETER;
429 }
430 qemu_log_mask(LOG_UNIMP, "%c", ldl_be_phys(as, args));
431 stl_be_phys(as, rets, 0);
432 return H_SUCCESS;
433 case RTAS_POWER_OFF:
434 {
435 if (nargs != 2 || nrets != 1) {
436 stl_be_phys(as, rets, -1);
437 return H_PARAMETER;
438 }
439 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
440 stl_be_phys(as, rets, 0);
441 return H_SUCCESS;
442 }
443 default:
444 qemu_log_mask(LOG_UNIMP, "Unknown RTAS token %u (args=%u, rets=%u)\n",
445 token, nargs, nrets);
446 stl_be_phys(as, rets, 0);
447 return H_SUCCESS;
448 }
449 }
450
451 static bool pegasos2_cpu_in_nested(PowerPCCPU *cpu)
452 {
453 return false;
454 }
455
456 static void pegasos2_hypercall(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
457 {
458 Pegasos2MachineState *pm = PEGASOS2_MACHINE(vhyp);
459 CPUPPCState *env = &cpu->env;
460
461 /* The TCG path should also be holding the BQL at this point */
462 g_assert(qemu_mutex_iothread_locked());
463
464 if (FIELD_EX64(env->msr, MSR, PR)) {
465 qemu_log_mask(LOG_GUEST_ERROR, "Hypercall made with MSR[PR]=1\n");
466 env->gpr[3] = H_PRIVILEGE;
467 } else if (env->gpr[3] == KVMPPC_H_RTAS) {
468 env->gpr[3] = pegasos2_rtas(cpu, pm, env->gpr[4]);
469 } else if (env->gpr[3] == KVMPPC_H_VOF_CLIENT) {
470 int ret = vof_client_call(MACHINE(pm), pm->vof, pm->fdt_blob,
471 env->gpr[4]);
472 env->gpr[3] = (ret ? H_PARAMETER : H_SUCCESS);
473 } else {
474 qemu_log_mask(LOG_GUEST_ERROR, "Unsupported hypercall " TARGET_FMT_lx
475 "\n", env->gpr[3]);
476 env->gpr[3] = -1;
477 }
478 }
479
480 static void vhyp_nop(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
481 {
482 }
483
484 static target_ulong vhyp_encode_hpt_for_kvm_pr(PPCVirtualHypervisor *vhyp)
485 {
486 return POWERPC_CPU(current_cpu)->env.spr[SPR_SDR1];
487 }
488
489 static bool pegasos2_setprop(MachineState *ms, const char *path,
490 const char *propname, void *val, int vallen)
491 {
492 return true;
493 }
494
495 static void pegasos2_machine_class_init(ObjectClass *oc, void *data)
496 {
497 MachineClass *mc = MACHINE_CLASS(oc);
498 PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc);
499 VofMachineIfClass *vmc = VOF_MACHINE_CLASS(oc);
500
501 mc->desc = "Genesi/bPlan Pegasos II";
502 mc->init = pegasos2_init;
503 mc->reset = pegasos2_machine_reset;
504 mc->block_default_type = IF_IDE;
505 mc->default_boot_order = "cd";
506 mc->default_display = "std";
507 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
508 mc->default_ram_id = "pegasos2.ram";
509 mc->default_ram_size = 512 * MiB;
510
511 vhc->cpu_in_nested = pegasos2_cpu_in_nested;
512 vhc->hypercall = pegasos2_hypercall;
513 vhc->cpu_exec_enter = vhyp_nop;
514 vhc->cpu_exec_exit = vhyp_nop;
515 vhc->encode_hpt_for_kvm_pr = vhyp_encode_hpt_for_kvm_pr;
516
517 vmc->setprop = pegasos2_setprop;
518 }
519
520 static const TypeInfo pegasos2_machine_info = {
521 .name = TYPE_PEGASOS2_MACHINE,
522 .parent = TYPE_MACHINE,
523 .class_init = pegasos2_machine_class_init,
524 .instance_size = sizeof(Pegasos2MachineState),
525 .interfaces = (InterfaceInfo[]) {
526 { TYPE_PPC_VIRTUAL_HYPERVISOR },
527 { TYPE_VOF_MACHINE_IF },
528 { }
529 },
530 };
531
532 static void pegasos2_machine_register_types(void)
533 {
534 type_register_static(&pegasos2_machine_info);
535 }
536
537 type_init(pegasos2_machine_register_types)
538
539 /* FDT creation for passing to firmware */
540
541 typedef struct {
542 void *fdt;
543 const char *path;
544 } FDTInfo;
545
546 /* We do everything in reverse order so it comes out right in the tree */
547
548 static void dt_ide(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
549 {
550 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "spi");
551 }
552
553 static void dt_usb(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
554 {
555 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 0);
556 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 1);
557 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "usb");
558 }
559
560 static void dt_isa(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
561 {
562 GString *name = g_string_sized_new(64);
563 uint32_t cells[3];
564
565 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 1);
566 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 2);
567 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "isa");
568 qemu_fdt_setprop_string(fi->fdt, fi->path, "name", "isa");
569
570 /* addional devices */
571 g_string_printf(name, "%s/lpt@i3bc", fi->path);
572 qemu_fdt_add_subnode(fi->fdt, name->str);
573 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
574 cells[0] = cpu_to_be32(7);
575 cells[1] = 0;
576 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
577 cells, 2 * sizeof(cells[0]));
578 cells[0] = cpu_to_be32(1);
579 cells[1] = cpu_to_be32(0x3bc);
580 cells[2] = cpu_to_be32(8);
581 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
582 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "lpt");
583 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "lpt");
584
585 g_string_printf(name, "%s/fdc@i3f0", fi->path);
586 qemu_fdt_add_subnode(fi->fdt, name->str);
587 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
588 cells[0] = cpu_to_be32(6);
589 cells[1] = 0;
590 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
591 cells, 2 * sizeof(cells[0]));
592 cells[0] = cpu_to_be32(1);
593 cells[1] = cpu_to_be32(0x3f0);
594 cells[2] = cpu_to_be32(8);
595 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
596 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "fdc");
597 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "fdc");
598
599 g_string_printf(name, "%s/timer@i40", fi->path);
600 qemu_fdt_add_subnode(fi->fdt, name->str);
601 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
602 cells[0] = cpu_to_be32(1);
603 cells[1] = cpu_to_be32(0x40);
604 cells[2] = cpu_to_be32(8);
605 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
606 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "timer");
607 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "timer");
608
609 g_string_printf(name, "%s/rtc@i70", fi->path);
610 qemu_fdt_add_subnode(fi->fdt, name->str);
611 qemu_fdt_setprop_string(fi->fdt, name->str, "compatible", "ds1385-rtc");
612 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
613 cells[0] = cpu_to_be32(8);
614 cells[1] = 0;
615 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
616 cells, 2 * sizeof(cells[0]));
617 cells[0] = cpu_to_be32(1);
618 cells[1] = cpu_to_be32(0x70);
619 cells[2] = cpu_to_be32(2);
620 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
621 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "rtc");
622 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "rtc");
623
624 g_string_printf(name, "%s/keyboard@i60", fi->path);
625 qemu_fdt_add_subnode(fi->fdt, name->str);
626 cells[0] = cpu_to_be32(1);
627 cells[1] = 0;
628 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
629 cells, 2 * sizeof(cells[0]));
630 cells[0] = cpu_to_be32(1);
631 cells[1] = cpu_to_be32(0x60);
632 cells[2] = cpu_to_be32(5);
633 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
634 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "keyboard");
635 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "keyboard");
636
637 g_string_printf(name, "%s/8042@i60", fi->path);
638 qemu_fdt_add_subnode(fi->fdt, name->str);
639 qemu_fdt_setprop_cell(fi->fdt, name->str, "#interrupt-cells", 2);
640 qemu_fdt_setprop_cell(fi->fdt, name->str, "#size-cells", 0);
641 qemu_fdt_setprop_cell(fi->fdt, name->str, "#address-cells", 1);
642 qemu_fdt_setprop_string(fi->fdt, name->str, "interrupt-controller", "");
643 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
644 cells[0] = cpu_to_be32(1);
645 cells[1] = cpu_to_be32(0x60);
646 cells[2] = cpu_to_be32(5);
647 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
648 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "");
649 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "8042");
650
651 g_string_printf(name, "%s/serial@i2f8", fi->path);
652 qemu_fdt_add_subnode(fi->fdt, name->str);
653 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
654 cells[0] = cpu_to_be32(3);
655 cells[1] = 0;
656 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
657 cells, 2 * sizeof(cells[0]));
658 cells[0] = cpu_to_be32(1);
659 cells[1] = cpu_to_be32(0x2f8);
660 cells[2] = cpu_to_be32(8);
661 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
662 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "serial");
663 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "serial");
664
665 g_string_free(name, TRUE);
666 }
667
668 static struct {
669 const char *id;
670 const char *name;
671 void (*dtf)(PCIBus *bus, PCIDevice *d, FDTInfo *fi);
672 } device_map[] = {
673 { "pci11ab,6460", "host", NULL },
674 { "pci1106,8231", "isa", dt_isa },
675 { "pci1106,571", "ide", dt_ide },
676 { "pci1106,3044", "firewire", NULL },
677 { "pci1106,3038", "usb", dt_usb },
678 { "pci1106,8235", "other", NULL },
679 { "pci1106,3058", "sound", NULL },
680 { NULL, NULL }
681 };
682
683 static void add_pci_device(PCIBus *bus, PCIDevice *d, void *opaque)
684 {
685 FDTInfo *fi = opaque;
686 GString *node = g_string_new(NULL);
687 uint32_t cells[(PCI_NUM_REGIONS + 1) * 5];
688 int i, j;
689 const char *name = NULL;
690 g_autofree const gchar *pn = g_strdup_printf("pci%x,%x",
691 pci_get_word(&d->config[PCI_VENDOR_ID]),
692 pci_get_word(&d->config[PCI_DEVICE_ID]));
693
694 for (i = 0; device_map[i].id; i++) {
695 if (!strcmp(pn, device_map[i].id)) {
696 name = device_map[i].name;
697 break;
698 }
699 }
700 g_string_printf(node, "%s/%s@%x", fi->path, (name ?: pn),
701 PCI_SLOT(d->devfn));
702 if (PCI_FUNC(d->devfn)) {
703 g_string_append_printf(node, ",%x", PCI_FUNC(d->devfn));
704 }
705
706 qemu_fdt_add_subnode(fi->fdt, node->str);
707 if (device_map[i].dtf) {
708 FDTInfo cfi = { fi->fdt, node->str };
709 device_map[i].dtf(bus, d, &cfi);
710 }
711 cells[0] = cpu_to_be32(d->devfn << 8);
712 cells[1] = 0;
713 cells[2] = 0;
714 cells[3] = 0;
715 cells[4] = 0;
716 j = 5;
717 for (i = 0; i < PCI_NUM_REGIONS; i++) {
718 if (!d->io_regions[i].size) {
719 continue;
720 }
721 cells[j] = cpu_to_be32(d->devfn << 8 | (PCI_BASE_ADDRESS_0 + i * 4));
722 if (d->io_regions[i].type & PCI_BASE_ADDRESS_SPACE_IO) {
723 cells[j] |= cpu_to_be32(1 << 24);
724 } else {
725 cells[j] |= cpu_to_be32(2 << 24);
726 if (d->io_regions[i].type & PCI_BASE_ADDRESS_MEM_PREFETCH) {
727 cells[j] |= cpu_to_be32(4 << 28);
728 }
729 }
730 cells[j + 1] = 0;
731 cells[j + 2] = 0;
732 cells[j + 3] = cpu_to_be32(d->io_regions[i].size >> 32);
733 cells[j + 4] = cpu_to_be32(d->io_regions[i].size);
734 j += 5;
735 }
736 qemu_fdt_setprop(fi->fdt, node->str, "reg", cells, j * sizeof(cells[0]));
737 qemu_fdt_setprop_string(fi->fdt, node->str, "name", name ?: pn);
738 if (pci_get_byte(&d->config[PCI_INTERRUPT_PIN])) {
739 qemu_fdt_setprop_cell(fi->fdt, node->str, "interrupts",
740 pci_get_byte(&d->config[PCI_INTERRUPT_PIN]));
741 }
742 /* Pegasos2 firmware has subsystem-id amd subsystem-vendor-id swapped */
743 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-vendor-id",
744 pci_get_word(&d->config[PCI_SUBSYSTEM_ID]));
745 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-id",
746 pci_get_word(&d->config[PCI_SUBSYSTEM_VENDOR_ID]));
747 cells[0] = pci_get_long(&d->config[PCI_CLASS_REVISION]);
748 qemu_fdt_setprop_cell(fi->fdt, node->str, "class-code", cells[0] >> 8);
749 qemu_fdt_setprop_cell(fi->fdt, node->str, "revision-id", cells[0] & 0xff);
750 qemu_fdt_setprop_cell(fi->fdt, node->str, "device-id",
751 pci_get_word(&d->config[PCI_DEVICE_ID]));
752 qemu_fdt_setprop_cell(fi->fdt, node->str, "vendor-id",
753 pci_get_word(&d->config[PCI_VENDOR_ID]));
754
755 g_string_free(node, TRUE);
756 }
757
758 static void *build_fdt(MachineState *machine, int *fdt_size)
759 {
760 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
761 PowerPCCPU *cpu = pm->cpu;
762 PCIBus *pci_bus;
763 FDTInfo fi;
764 uint32_t cells[16];
765 void *fdt = create_device_tree(fdt_size);
766
767 fi.fdt = fdt;
768
769 /* root node */
770 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,description",
771 "Pegasos CHRP PowerPC System");
772 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,board", "Pegasos2");
773 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,vendor", "bplan GmbH");
774 qemu_fdt_setprop_string(fdt, "/", "revision", "2B");
775 qemu_fdt_setprop_string(fdt, "/", "model", "Pegasos2");
776 qemu_fdt_setprop_string(fdt, "/", "device_type", "chrp");
777 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 1);
778 qemu_fdt_setprop_string(fdt, "/", "name", "bplan,Pegasos2");
779
780 /* pci@c0000000 */
781 qemu_fdt_add_subnode(fdt, "/pci@c0000000");
782 cells[0] = 0;
783 cells[1] = 0;
784 qemu_fdt_setprop(fdt, "/pci@c0000000", "bus-range",
785 cells, 2 * sizeof(cells[0]));
786 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "pci-bridge-number", 1);
787 cells[0] = cpu_to_be32(PCI0_MEM_BASE);
788 cells[1] = cpu_to_be32(PCI0_MEM_SIZE);
789 qemu_fdt_setprop(fdt, "/pci@c0000000", "reg", cells, 2 * sizeof(cells[0]));
790 cells[0] = cpu_to_be32(0x01000000);
791 cells[1] = 0;
792 cells[2] = 0;
793 cells[3] = cpu_to_be32(PCI0_IO_BASE);
794 cells[4] = 0;
795 cells[5] = cpu_to_be32(PCI0_IO_SIZE);
796 cells[6] = cpu_to_be32(0x02000000);
797 cells[7] = 0;
798 cells[8] = cpu_to_be32(PCI0_MEM_BASE);
799 cells[9] = cpu_to_be32(PCI0_MEM_BASE);
800 cells[10] = 0;
801 cells[11] = cpu_to_be32(PCI0_MEM_SIZE);
802 qemu_fdt_setprop(fdt, "/pci@c0000000", "ranges",
803 cells, 12 * sizeof(cells[0]));
804 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#size-cells", 2);
805 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#address-cells", 3);
806 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "device_type", "pci");
807 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "name", "pci");
808
809 fi.path = "/pci@c0000000";
810 pci_bus = mv64361_get_pci_bus(pm->mv, 0);
811 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
812
813 /* pci@80000000 */
814 qemu_fdt_add_subnode(fdt, "/pci@80000000");
815 cells[0] = 0;
816 cells[1] = 0;
817 qemu_fdt_setprop(fdt, "/pci@80000000", "bus-range",
818 cells, 2 * sizeof(cells[0]));
819 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "pci-bridge-number", 0);
820 cells[0] = cpu_to_be32(PCI1_MEM_BASE);
821 cells[1] = cpu_to_be32(PCI1_MEM_SIZE);
822 qemu_fdt_setprop(fdt, "/pci@80000000", "reg", cells, 2 * sizeof(cells[0]));
823 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "8259-interrupt-acknowledge",
824 0xf1000cb4);
825 cells[0] = cpu_to_be32(0x01000000);
826 cells[1] = 0;
827 cells[2] = 0;
828 cells[3] = cpu_to_be32(PCI1_IO_BASE);
829 cells[4] = 0;
830 cells[5] = cpu_to_be32(PCI1_IO_SIZE);
831 cells[6] = cpu_to_be32(0x02000000);
832 cells[7] = 0;
833 cells[8] = cpu_to_be32(PCI1_MEM_BASE);
834 cells[9] = cpu_to_be32(PCI1_MEM_BASE);
835 cells[10] = 0;
836 cells[11] = cpu_to_be32(PCI1_MEM_SIZE);
837 qemu_fdt_setprop(fdt, "/pci@80000000", "ranges",
838 cells, 12 * sizeof(cells[0]));
839 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#size-cells", 2);
840 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#address-cells", 3);
841 qemu_fdt_setprop_string(fdt, "/pci@80000000", "device_type", "pci");
842 qemu_fdt_setprop_string(fdt, "/pci@80000000", "name", "pci");
843
844 fi.path = "/pci@80000000";
845 pci_bus = mv64361_get_pci_bus(pm->mv, 1);
846 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
847
848 qemu_fdt_add_subnode(fdt, "/failsafe");
849 qemu_fdt_setprop_string(fdt, "/failsafe", "device_type", "serial");
850 qemu_fdt_setprop_string(fdt, "/failsafe", "name", "failsafe");
851
852 qemu_fdt_add_subnode(fdt, "/rtas");
853 qemu_fdt_setprop_cell(fdt, "/rtas", "system-reboot", RTAS_SYSTEM_REBOOT);
854 qemu_fdt_setprop_cell(fdt, "/rtas", "hibernate", RTAS_HIBERNATE);
855 qemu_fdt_setprop_cell(fdt, "/rtas", "suspend", RTAS_SUSPEND);
856 qemu_fdt_setprop_cell(fdt, "/rtas", "power-off", RTAS_POWER_OFF);
857 qemu_fdt_setprop_cell(fdt, "/rtas", "set-indicator", RTAS_SET_INDICATOR);
858 qemu_fdt_setprop_cell(fdt, "/rtas", "display-character",
859 RTAS_DISPLAY_CHARACTER);
860 qemu_fdt_setprop_cell(fdt, "/rtas", "write-pci-config",
861 RTAS_WRITE_PCI_CONFIG);
862 qemu_fdt_setprop_cell(fdt, "/rtas", "read-pci-config",
863 RTAS_READ_PCI_CONFIG);
864 /* Pegasos2 firmware misspells check-exception and guests use that */
865 qemu_fdt_setprop_cell(fdt, "/rtas", "check-execption",
866 RTAS_CHECK_EXCEPTION);
867 qemu_fdt_setprop_cell(fdt, "/rtas", "event-scan", RTAS_EVENT_SCAN);
868 qemu_fdt_setprop_cell(fdt, "/rtas", "set-time-of-day",
869 RTAS_SET_TIME_OF_DAY);
870 qemu_fdt_setprop_cell(fdt, "/rtas", "get-time-of-day",
871 RTAS_GET_TIME_OF_DAY);
872 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-store", RTAS_NVRAM_STORE);
873 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-fetch", RTAS_NVRAM_FETCH);
874 qemu_fdt_setprop_cell(fdt, "/rtas", "restart-rtas", RTAS_RESTART_RTAS);
875 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-error-log-max", 0);
876 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-event-scan-rate", 0);
877 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-display-device", 0);
878 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-size", 20);
879 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-version", 1);
880
881 /* cpus */
882 qemu_fdt_add_subnode(fdt, "/cpus");
883 qemu_fdt_setprop_cell(fdt, "/cpus", "#cpus", 1);
884 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1);
885 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0);
886 qemu_fdt_setprop_string(fdt, "/cpus", "name", "cpus");
887
888 /* FIXME Get CPU name from CPU object */
889 const char *cp = "/cpus/PowerPC,G4";
890 qemu_fdt_add_subnode(fdt, cp);
891 qemu_fdt_setprop_cell(fdt, cp, "l2cr", 0);
892 qemu_fdt_setprop_cell(fdt, cp, "d-cache-size", 0x8000);
893 qemu_fdt_setprop_cell(fdt, cp, "d-cache-block-size",
894 cpu->env.dcache_line_size);
895 qemu_fdt_setprop_cell(fdt, cp, "d-cache-line-size",
896 cpu->env.dcache_line_size);
897 qemu_fdt_setprop_cell(fdt, cp, "i-cache-size", 0x8000);
898 qemu_fdt_setprop_cell(fdt, cp, "i-cache-block-size",
899 cpu->env.icache_line_size);
900 qemu_fdt_setprop_cell(fdt, cp, "i-cache-line-size",
901 cpu->env.icache_line_size);
902 if (cpu->env.id_tlbs) {
903 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-sets", cpu->env.nb_ways);
904 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-size", cpu->env.tlb_per_way);
905 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-sets", cpu->env.nb_ways);
906 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-size", cpu->env.tlb_per_way);
907 qemu_fdt_setprop_string(fdt, cp, "tlb-split", "");
908 }
909 qemu_fdt_setprop_cell(fdt, cp, "tlb-sets", cpu->env.nb_ways);
910 qemu_fdt_setprop_cell(fdt, cp, "tlb-size", cpu->env.nb_tlb);
911 qemu_fdt_setprop_string(fdt, cp, "state", "running");
912 if (cpu->env.insns_flags & PPC_ALTIVEC) {
913 qemu_fdt_setprop_string(fdt, cp, "altivec", "");
914 qemu_fdt_setprop_string(fdt, cp, "data-streams", "");
915 }
916 /*
917 * FIXME What flags do data-streams, external-control and
918 * performance-monitor depend on?
919 */
920 qemu_fdt_setprop_string(fdt, cp, "external-control", "");
921 if (cpu->env.insns_flags & PPC_FLOAT_FSQRT) {
922 qemu_fdt_setprop_string(fdt, cp, "general-purpose", "");
923 }
924 qemu_fdt_setprop_string(fdt, cp, "performance-monitor", "");
925 if (cpu->env.insns_flags & PPC_FLOAT_FRES) {
926 qemu_fdt_setprop_string(fdt, cp, "graphics", "");
927 }
928 qemu_fdt_setprop_cell(fdt, cp, "reservation-granule-size", 4);
929 qemu_fdt_setprop_cell(fdt, cp, "timebase-frequency",
930 cpu->env.tb_env->tb_freq);
931 qemu_fdt_setprop_cell(fdt, cp, "bus-frequency", BUS_FREQ_HZ);
932 qemu_fdt_setprop_cell(fdt, cp, "clock-frequency", BUS_FREQ_HZ * 7.5);
933 qemu_fdt_setprop_cell(fdt, cp, "cpu-version", cpu->env.spr[SPR_PVR]);
934 cells[0] = 0;
935 cells[1] = 0;
936 qemu_fdt_setprop(fdt, cp, "reg", cells, 2 * sizeof(cells[0]));
937 qemu_fdt_setprop_string(fdt, cp, "device_type", "cpu");
938 qemu_fdt_setprop_string(fdt, cp, "name", strrchr(cp, '/') + 1);
939
940 /* memory */
941 qemu_fdt_add_subnode(fdt, "/memory@0");
942 cells[0] = 0;
943 cells[1] = cpu_to_be32(machine->ram_size);
944 qemu_fdt_setprop(fdt, "/memory@0", "reg", cells, 2 * sizeof(cells[0]));
945 qemu_fdt_setprop_string(fdt, "/memory@0", "device_type", "memory");
946 qemu_fdt_setprop_string(fdt, "/memory@0", "name", "memory");
947
948 qemu_fdt_add_subnode(fdt, "/chosen");
949 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
950 machine->kernel_cmdline ?: "");
951 qemu_fdt_setprop_string(fdt, "/chosen", "name", "chosen");
952
953 qemu_fdt_add_subnode(fdt, "/openprom");
954 qemu_fdt_setprop_string(fdt, "/openprom", "model", "Pegasos2,1.1");
955
956 return fdt;
957 }