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linux-user: Fix XER access in ppc version of elf_core_copy_regs
[qemu/rayw.git] / hw / mips / loongson3_virt.c
blobae192db0c8b9cb5408b0585a039c7bf7077fe440
1 /*
2 * Generic Loongson-3 Platform support
3 *
4 * Copyright (c) 2018-2020 Huacai Chen (chenhc@lemote.com)
5 * Copyright (c) 2018-2020 Jiaxun Yang <jiaxun.yang@flygoat.com>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 */
20
21 /*
22 * Generic virtualized PC Platform based on Loongson-3 CPU (MIPS64R2 with
23 * extensions, 800~2000MHz)
24 */
25
26 #include "qemu/osdep.h"
27 #include "qemu-common.h"
28 #include "qemu/units.h"
29 #include "qemu/cutils.h"
30 #include "qemu/datadir.h"
31 #include "qapi/error.h"
32 #include "elf.h"
33 #include "kvm_mips.h"
34 #include "hw/char/serial.h"
35 #include "hw/intc/loongson_liointc.h"
36 #include "hw/mips/mips.h"
37 #include "hw/mips/cpudevs.h"
38 #include "hw/mips/fw_cfg.h"
39 #include "hw/mips/loongson3_bootp.h"
40 #include "hw/misc/unimp.h"
41 #include "hw/intc/i8259.h"
42 #include "hw/loader.h"
43 #include "hw/isa/superio.h"
44 #include "hw/pci/msi.h"
45 #include "hw/pci/pci.h"
46 #include "hw/pci/pci_host.h"
47 #include "hw/pci-host/gpex.h"
48 #include "hw/usb.h"
49 #include "net/net.h"
50 #include "sysemu/kvm.h"
51 #include "sysemu/qtest.h"
52 #include "sysemu/reset.h"
53 #include "sysemu/runstate.h"
54 #include "qemu/error-report.h"
55
56 #define PM_CNTL_MODE 0x10
57
58 #define LOONGSON_MAX_VCPUS 16
59
60 /*
61 * Loongson-3's virtual machine BIOS can be obtained here:
62 * 1, https://github.com/loongson-community/firmware-nonfree
63 * 2, http://dev.lemote.com:8000/files/firmware/UEFI/KVM/bios_loongson3.bin
64 */
65 #define LOONGSON3_BIOSNAME "bios_loongson3.bin"
66
67 #define UART_IRQ 0
68 #define RTC_IRQ 1
69 #define PCIE_IRQ_BASE 2
70
71 const MemMapEntry virt_memmap[] = {
72 [VIRT_LOWMEM] = { 0x00000000, 0x10000000 },
73 [VIRT_PM] = { 0x10080000, 0x100 },
74 [VIRT_FW_CFG] = { 0x10080100, 0x100 },
75 [VIRT_RTC] = { 0x10081000, 0x1000 },
76 [VIRT_PCIE_PIO] = { 0x18000000, 0x80000 },
77 [VIRT_PCIE_ECAM] = { 0x1a000000, 0x2000000 },
78 [VIRT_BIOS_ROM] = { 0x1fc00000, 0x200000 },
79 [VIRT_UART] = { 0x1fe001e0, 0x8 },
80 [VIRT_LIOINTC] = { 0x3ff01400, 0x64 },
81 [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 },
82 [VIRT_HIGHMEM] = { 0x80000000, 0x0 }, /* Variable */
83 };
84
85 static const MemMapEntry loader_memmap[] = {
86 [LOADER_KERNEL] = { 0x00000000, 0x4000000 },
87 [LOADER_INITRD] = { 0x04000000, 0x0 }, /* Variable */
88 [LOADER_CMDLINE] = { 0x0ff00000, 0x100000 },
89 };
90
91 static const MemMapEntry loader_rommap[] = {
92 [LOADER_BOOTROM] = { 0x1fc00000, 0x1000 },
93 [LOADER_PARAM] = { 0x1fc01000, 0x10000 },
94 };
95
96 struct LoongsonMachineState {
97 MachineState parent_obj;
98 MemoryRegion *pio_alias;
99 MemoryRegion *mmio_alias;
100 MemoryRegion *ecam_alias;
101 };
102 typedef struct LoongsonMachineState LoongsonMachineState;
103
104 #define TYPE_LOONGSON_MACHINE MACHINE_TYPE_NAME("loongson3-virt")
105 DECLARE_INSTANCE_CHECKER(LoongsonMachineState, LOONGSON_MACHINE, TYPE_LOONGSON_MACHINE)
106
107 static struct _loaderparams {
108 uint64_t cpu_freq;
109 uint64_t ram_size;
110 const char *kernel_cmdline;
111 const char *kernel_filename;
112 const char *initrd_filename;
113 uint64_t kernel_entry;
114 uint64_t a0, a1, a2;
115 } loaderparams;
116
117 static uint64_t loongson3_pm_read(void *opaque, hwaddr addr, unsigned size)
118 {
119 return 0;
120 }
121
122 static void loongson3_pm_write(void *opaque, hwaddr addr,
123 uint64_t val, unsigned size)
124 {
125 if (addr != PM_CNTL_MODE) {
126 return;
127 }
128
129 switch (val) {
130 case 0x00:
131 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
132 return;
133 case 0xff:
134 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
135 return;
136 default:
137 return;
138 }
139 }
140
141 static const MemoryRegionOps loongson3_pm_ops = {
142 .read = loongson3_pm_read,
143 .write = loongson3_pm_write,
144 .endianness = DEVICE_NATIVE_ENDIAN,
145 .valid = {
146 .min_access_size = 1,
147 .max_access_size = 1
148 }
149 };
150
151 #define DEF_LOONGSON3_FREQ (800 * 1000 * 1000)
152
153 static uint64_t get_cpu_freq_hz(void)
154 {
155 #ifdef CONFIG_KVM
156 int ret;
157 uint64_t freq;
158 struct kvm_one_reg freq_reg = {
159 .id = KVM_REG_MIPS_COUNT_HZ,
160 .addr = (uintptr_t)(&freq)
161 };
162
163 if (kvm_enabled()) {
164 ret = kvm_vcpu_ioctl(first_cpu, KVM_GET_ONE_REG, &freq_reg);
165 if (ret >= 0) {
166 return freq * 2;
167 }
168 }
169 #endif
170 return DEF_LOONGSON3_FREQ;
171 }
172
173 static void init_boot_param(void)
174 {
175 static void *p;
176 struct boot_params *bp;
177
178 p = g_malloc0(loader_rommap[LOADER_PARAM].size);
179 bp = p;
180
181 bp->efi.smbios.vers = cpu_to_le16(1);
182 init_reset_system(&(bp->reset_system));
183 p += ROUND_UP(sizeof(struct boot_params), 64);
184 init_loongson_params(&(bp->efi.smbios.lp), p,
185 loaderparams.cpu_freq, loaderparams.ram_size);
186
187 rom_add_blob_fixed("params_rom", bp,
188 loader_rommap[LOADER_PARAM].size,
189 loader_rommap[LOADER_PARAM].base);
190
191 g_free(bp);
192
193 loaderparams.a2 = cpu_mips_phys_to_kseg0(NULL,
194 loader_rommap[LOADER_PARAM].base);
195 }
196
197 static void init_boot_rom(void)
198 {
199 const unsigned int boot_code[] = {
200 0x40086000, /* mfc0 t0, CP0_STATUS */
201 0x240900E4, /* li t1, 0xe4 #set kx, sx, ux, erl */
202 0x01094025, /* or t0, t0, t1 */
203 0x3C090040, /* lui t1, 0x40 #set bev */
204 0x01094025, /* or t0, t0, t1 */
205 0x40886000, /* mtc0 t0, CP0_STATUS */
206 0x00000000,
207 0x40806800, /* mtc0 zero, CP0_CAUSE */
208 0x00000000,
209 0x400A7801, /* mfc0 t2, $15, 1 */
210 0x314A00FF, /* andi t2, 0x0ff */
211 0x3C089000, /* dli t0, 0x900000003ff01000 */
212 0x00084438,
213 0x35083FF0,
214 0x00084438,
215 0x35081000,
216 0x314B0003, /* andi t3, t2, 0x3 #local cpuid */
217 0x000B5A00, /* sll t3, 8 */
218 0x010B4025, /* or t0, t0, t3 */
219 0x314C000C, /* andi t4, t2, 0xc #node id */
220 0x000C62BC, /* dsll t4, 42 */
221 0x010C4025, /* or t0, t0, t4 */
222 /* WaitForInit: */
223 0xDD020020, /* ld v0, FN_OFF(t0) #FN_OFF 0x020 */
224 0x1040FFFE, /* beqz v0, WaitForInit */
225 0x00000000, /* nop */
226 0xDD1D0028, /* ld sp, SP_OFF(t0) #FN_OFF 0x028 */
227 0xDD1C0030, /* ld gp, GP_OFF(t0) #FN_OFF 0x030 */
228 0xDD050038, /* ld a1, A1_OFF(t0) #FN_OFF 0x038 */
229 0x00400008, /* jr v0 #byebye */
230 0x00000000, /* nop */
231 0x1000FFFF, /* 1: b 1b */
232 0x00000000, /* nop */
233
234 /* Reset */
235 0x3C0C9000, /* dli t0, 0x9000000010080010 */
236 0x358C0000,
237 0x000C6438,
238 0x358C1008,
239 0x000C6438,
240 0x358C0010,
241 0x240D0000, /* li t1, 0x00 */
242 0xA18D0000, /* sb t1, (t0) */
243 0x1000FFFF, /* 1: b 1b */
244 0x00000000, /* nop */
245
246 /* Shutdown */
247 0x3C0C9000, /* dli t0, 0x9000000010080010 */
248 0x358C0000,
249 0x000C6438,
250 0x358C1008,
251 0x000C6438,
252 0x358C0010,
253 0x240D00FF, /* li t1, 0xff */
254 0xA18D0000, /* sb t1, (t0) */
255 0x1000FFFF, /* 1: b 1b */
256 0x00000000 /* nop */
257 };
258
259 rom_add_blob_fixed("boot_rom", boot_code, sizeof(boot_code),
260 loader_rommap[LOADER_BOOTROM].base);
261 }
262
263 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
264 Error **errp)
265 {
266 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
267 }
268
269 static void fw_conf_init(unsigned long ram_size)
270 {
271 FWCfgState *fw_cfg;
272 hwaddr cfg_addr = virt_memmap[VIRT_FW_CFG].base;
273
274 fw_cfg = fw_cfg_init_mem_wide(cfg_addr, cfg_addr + 8, 8, 0, NULL);
275 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)current_machine->smp.cpus);
276 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)current_machine->smp.max_cpus);
277 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
278 fw_cfg_add_i32(fw_cfg, FW_CFG_MACHINE_VERSION, 1);
279 fw_cfg_add_i64(fw_cfg, FW_CFG_CPU_FREQ, get_cpu_freq_hz());
280 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
281 }
282
283 static int set_prom_cmdline(ram_addr_t initrd_offset, long initrd_size)
284 {
285 int ret = 0;
286 void *cmdline_buf;
287 hwaddr cmdline_vaddr;
288 unsigned int *parg_env;
289
290 /* Allocate cmdline_buf for command line. */
291 cmdline_buf = g_malloc0(loader_memmap[LOADER_CMDLINE].size);
292 cmdline_vaddr = cpu_mips_phys_to_kseg0(NULL,
293 loader_memmap[LOADER_CMDLINE].base);
294
295 /*
296 * Layout of cmdline_buf looks like this:
297 * argv[0], argv[1], 0, env[0], env[1], ... env[i], 0,
298 * argv[0]'s data, argv[1]'s data, env[0]'data, ..., env[i]'s data, 0
299 */
300 parg_env = (void *)cmdline_buf;
301
302 ret = (3 + 1) * 4;
303 *parg_env++ = cmdline_vaddr + ret;
304 ret += (1 + snprintf(cmdline_buf + ret, 256 - ret, "g"));
305
306 /* argv1 */
307 *parg_env++ = cmdline_vaddr + ret;
308 if (initrd_size > 0)
309 ret += (1 + snprintf(cmdline_buf + ret, 256 - ret,
310 "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s",
311 cpu_mips_phys_to_kseg0(NULL, initrd_offset),
312 initrd_size, loaderparams.kernel_cmdline));
313 else
314 ret += (1 + snprintf(cmdline_buf + ret, 256 - ret, "%s",
315 loaderparams.kernel_cmdline));
316
317 /* argv2 */
318 *parg_env++ = cmdline_vaddr + 4 * ret;
319
320 rom_add_blob_fixed("cmdline", cmdline_buf,
321 loader_memmap[LOADER_CMDLINE].size,
322 loader_memmap[LOADER_CMDLINE].base);
323
324 g_free(cmdline_buf);
325
326 loaderparams.a0 = 2;
327 loaderparams.a1 = cmdline_vaddr;
328
329 return 0;
330 }
331
332 static uint64_t load_kernel(CPUMIPSState *env)
333 {
334 long kernel_size;
335 ram_addr_t initrd_offset;
336 uint64_t kernel_entry, kernel_low, kernel_high, initrd_size;
337
338 kernel_size = load_elf(loaderparams.kernel_filename, NULL,
339 cpu_mips_kseg0_to_phys, NULL,
340 (uint64_t *)&kernel_entry,
341 (uint64_t *)&kernel_low, (uint64_t *)&kernel_high,
342 NULL, 0, EM_MIPS, 1, 0);
343 if (kernel_size < 0) {
344 error_report("could not load kernel '%s': %s",
345 loaderparams.kernel_filename,
346 load_elf_strerror(kernel_size));
347 exit(1);
348 }
349
350 /* load initrd */
351 initrd_size = 0;
352 initrd_offset = 0;
353 if (loaderparams.initrd_filename) {
354 initrd_size = get_image_size(loaderparams.initrd_filename);
355 if (initrd_size > 0) {
356 initrd_offset = MAX(loader_memmap[LOADER_INITRD].base,
357 ROUND_UP(kernel_high, INITRD_PAGE_SIZE));
358
359 if (initrd_offset + initrd_size > loaderparams.ram_size) {
360 error_report("memory too small for initial ram disk '%s'",
361 loaderparams.initrd_filename);
362 exit(1);
363 }
364
365 initrd_size = load_image_targphys(loaderparams.initrd_filename,
366 initrd_offset,
367 loaderparams.ram_size - initrd_offset);
368 }
369
370 if (initrd_size == (target_ulong) -1) {
371 error_report("could not load initial ram disk '%s'",
372 loaderparams.initrd_filename);
373 exit(1);
374 }
375 }
376
377 /* Setup prom cmdline. */
378 set_prom_cmdline(initrd_offset, initrd_size);
379
380 return kernel_entry;
381 }
382
383 static void main_cpu_reset(void *opaque)
384 {
385 MIPSCPU *cpu = opaque;
386 CPUMIPSState *env = &cpu->env;
387
388 cpu_reset(CPU(cpu));
389
390 /* Loongson-3 reset stuff */
391 if (loaderparams.kernel_filename) {
392 if (cpu == MIPS_CPU(first_cpu)) {
393 env->active_tc.gpr[4] = loaderparams.a0;
394 env->active_tc.gpr[5] = loaderparams.a1;
395 env->active_tc.gpr[6] = loaderparams.a2;
396 env->active_tc.PC = loaderparams.kernel_entry;
397 }
398 env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
399 }
400 }
401
402 static inline void loongson3_virt_devices_init(MachineState *machine,
403 DeviceState *pic)
404 {
405 int i;
406 qemu_irq irq;
407 PCIBus *pci_bus;
408 DeviceState *dev;
409 MemoryRegion *mmio_reg, *ecam_reg;
410 LoongsonMachineState *s = LOONGSON_MACHINE(machine);
411
412 dev = qdev_new(TYPE_GPEX_HOST);
413 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
414 pci_bus = PCI_HOST_BRIDGE(dev)->bus;
415
416 s->ecam_alias = g_new0(MemoryRegion, 1);
417 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
418 memory_region_init_alias(s->ecam_alias, OBJECT(dev), "pcie-ecam",
419 ecam_reg, 0, virt_memmap[VIRT_PCIE_ECAM].size);
420 memory_region_add_subregion(get_system_memory(),
421 virt_memmap[VIRT_PCIE_ECAM].base,
422 s->ecam_alias);
423
424 s->mmio_alias = g_new0(MemoryRegion, 1);
425 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1);
426 memory_region_init_alias(s->mmio_alias, OBJECT(dev), "pcie-mmio",
427 mmio_reg, virt_memmap[VIRT_PCIE_MMIO].base,
428 virt_memmap[VIRT_PCIE_MMIO].size);
429 memory_region_add_subregion(get_system_memory(),
430 virt_memmap[VIRT_PCIE_MMIO].base,
431 s->mmio_alias);
432
433 s->pio_alias = g_new0(MemoryRegion, 1);
434 memory_region_init_alias(s->pio_alias, OBJECT(dev), "pcie-pio",
435 get_system_io(), 0,
436 virt_memmap[VIRT_PCIE_PIO].size);
437 memory_region_add_subregion(get_system_memory(),
438 virt_memmap[VIRT_PCIE_PIO].base, s->pio_alias);
439 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, virt_memmap[VIRT_PCIE_PIO].base);
440
441 for (i = 0; i < GPEX_NUM_IRQS; i++) {
442 irq = qdev_get_gpio_in(pic, PCIE_IRQ_BASE + i);
443 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
444 gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ_BASE + i);
445 }
446 msi_nonbroken = true;
447
448 pci_vga_init(pci_bus);
449
450 if (defaults_enabled()) {
451 pci_create_simple(pci_bus, -1, "pci-ohci");
452 usb_create_simple(usb_bus_find(-1), "usb-kbd");
453 usb_create_simple(usb_bus_find(-1), "usb-tablet");
454 }
455
456 for (i = 0; i < nb_nics; i++) {
457 NICInfo *nd = &nd_table[i];
458
459 if (!nd->model) {
460 nd->model = g_strdup("virtio");
461 }
462
463 pci_nic_init_nofail(nd, pci_bus, nd->model, NULL);
464 }
465 }
466
467 static void mips_loongson3_virt_init(MachineState *machine)
468 {
469 int i;
470 long bios_size;
471 MIPSCPU *cpu;
472 Clock *cpuclk;
473 CPUMIPSState *env;
474 DeviceState *liointc;
475 char *filename;
476 const char *kernel_cmdline = machine->kernel_cmdline;
477 const char *kernel_filename = machine->kernel_filename;
478 const char *initrd_filename = machine->initrd_filename;
479 ram_addr_t ram_size = machine->ram_size;
480 MemoryRegion *address_space_mem = get_system_memory();
481 MemoryRegion *ram = g_new(MemoryRegion, 1);
482 MemoryRegion *bios = g_new(MemoryRegion, 1);
483 MemoryRegion *iomem = g_new(MemoryRegion, 1);
484
485 /* TODO: TCG will support all CPU types */
486 if (!kvm_enabled()) {
487 if (!machine->cpu_type) {
488 machine->cpu_type = MIPS_CPU_TYPE_NAME("Loongson-3A1000");
489 }
490 if (!strstr(machine->cpu_type, "Loongson-3A1000")) {
491 error_report("Loongson-3/TCG needs cpu type Loongson-3A1000");
492 exit(1);
493 }
494 } else {
495 if (!machine->cpu_type) {
496 machine->cpu_type = MIPS_CPU_TYPE_NAME("Loongson-3A4000");
497 }
498 if (!strstr(machine->cpu_type, "Loongson-3A4000")) {
499 error_report("Loongson-3/KVM needs cpu type Loongson-3A4000");
500 exit(1);
501 }
502 }
503
504 if (ram_size < 512 * MiB) {
505 error_report("Loongson-3 machine needs at least 512MB memory");
506 exit(1);
507 }
508
509 /*
510 * The whole MMIO range among configure registers doesn't generate
511 * exception when accessing invalid memory. Create some unimplememted
512 * devices to emulate this feature.
513 */
514 create_unimplemented_device("mmio fallback 0", 0x10000000, 256 * MiB);
515 create_unimplemented_device("mmio fallback 1", 0x30000000, 256 * MiB);
516
517 liointc = qdev_new("loongson.liointc");
518 sysbus_realize_and_unref(SYS_BUS_DEVICE(liointc), &error_fatal);
519
520 sysbus_mmio_map(SYS_BUS_DEVICE(liointc), 0, virt_memmap[VIRT_LIOINTC].base);
521
522 serial_mm_init(address_space_mem, virt_memmap[VIRT_UART].base, 0,
523 qdev_get_gpio_in(liointc, UART_IRQ), 115200, serial_hd(0),
524 DEVICE_NATIVE_ENDIAN);
525
526 sysbus_create_simple("goldfish_rtc", virt_memmap[VIRT_RTC].base,
527 qdev_get_gpio_in(liointc, RTC_IRQ));
528
529 cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
530 clock_set_hz(cpuclk, DEF_LOONGSON3_FREQ);
531
532 for (i = 0; i < machine->smp.cpus; i++) {
533 int ip;
534
535 /* init CPUs */
536 cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
537
538 /* Init internal devices */
539 cpu_mips_irq_init_cpu(cpu);
540 cpu_mips_clock_init(cpu);
541 qemu_register_reset(main_cpu_reset, cpu);
542
543 if (i >= 4) {
544 continue; /* Only node-0 can be connected to LIOINTC */
545 }
546
547 for (ip = 0; ip < 4 ; ip++) {
548 int pin = i * 4 + ip;
549 sysbus_connect_irq(SYS_BUS_DEVICE(liointc),
550 pin, cpu->env.irq[ip + 2]);
551 }
552 }
553 env = &MIPS_CPU(first_cpu)->env;
554
555 /* Allocate RAM/BIOS, 0x00000000~0x10000000 is alias of 0x80000000~0x90000000 */
556 memory_region_init_rom(bios, NULL, "loongson3.bios",
557 virt_memmap[VIRT_BIOS_ROM].size, &error_fatal);
558 memory_region_init_alias(ram, NULL, "loongson3.lowmem",
559 machine->ram, 0, virt_memmap[VIRT_LOWMEM].size);
560 memory_region_init_io(iomem, NULL, &loongson3_pm_ops,
561 NULL, "loongson3_pm", virt_memmap[VIRT_PM].size);
562
563 memory_region_add_subregion(address_space_mem,
564 virt_memmap[VIRT_LOWMEM].base, ram);
565 memory_region_add_subregion(address_space_mem,
566 virt_memmap[VIRT_BIOS_ROM].base, bios);
567 memory_region_add_subregion(address_space_mem,
568 virt_memmap[VIRT_HIGHMEM].base, machine->ram);
569 memory_region_add_subregion(address_space_mem,
570 virt_memmap[VIRT_PM].base, iomem);
571
572 /*
573 * We do not support flash operation, just loading bios.bin as raw BIOS.
574 * Please use -L to set the BIOS path and -bios to set bios name.
575 */
576
577 if (kernel_filename) {
578 loaderparams.cpu_freq = get_cpu_freq_hz();
579 loaderparams.ram_size = ram_size;
580 loaderparams.kernel_filename = kernel_filename;
581 loaderparams.kernel_cmdline = kernel_cmdline;
582 loaderparams.initrd_filename = initrd_filename;
583 loaderparams.kernel_entry = load_kernel(env);
584
585 init_boot_rom();
586 init_boot_param();
587 } else {
588 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
589 machine->firmware ?: LOONGSON3_BIOSNAME);
590 if (filename) {
591 bios_size = load_image_targphys(filename,
592 virt_memmap[VIRT_BIOS_ROM].base,
593 virt_memmap[VIRT_BIOS_ROM].size);
594 g_free(filename);
595 } else {
596 bios_size = -1;
597 }
598
599 if ((bios_size < 0 || bios_size > virt_memmap[VIRT_BIOS_ROM].size) &&
600 !kernel_filename && !qtest_enabled()) {
601 error_report("Could not load MIPS bios '%s'", machine->firmware);
602 exit(1);
603 }
604
605 fw_conf_init(ram_size);
606 }
607
608 loongson3_virt_devices_init(machine, liointc);
609 }
610
611 static void loongson3v_machine_class_init(ObjectClass *oc, void *data)
612 {
613 MachineClass *mc = MACHINE_CLASS(oc);
614
615 mc->desc = "Loongson-3 Virtualization Platform";
616 mc->init = mips_loongson3_virt_init;
617 mc->block_default_type = IF_IDE;
618 mc->max_cpus = LOONGSON_MAX_VCPUS;
619 mc->default_ram_id = "loongson3.highram";
620 mc->default_ram_size = 1600 * MiB;
621 mc->kvm_type = mips_kvm_type;
622 mc->minimum_page_bits = 14;
623 }
624
625 static const TypeInfo loongson3_machine_types[] = {
626 {
627 .name = TYPE_LOONGSON_MACHINE,
628 .parent = TYPE_MACHINE,
629 .instance_size = sizeof(LoongsonMachineState),
630 .class_init = loongson3v_machine_class_init,
631 }
632 };
633
634 DEFINE_TYPES(loongson3_machine_types)
Ray Wang's QEMU Repository