1 /*
2 * QEMU PC System Emulator
3 *
4 * Copyright (c) 2003-2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "hw.h"
25 #include "pc.h"
26 #include "fdc.h"
27 #include "pci.h"
28 #include "block.h"
29 #include "sysemu.h"
30 #include "blockdev.h"
31 #include "audio/audio.h"
32 #include "net.h"
33 //#include "smbus.h"
34 #include "boards.h"
35 #include "android/globals.h"
36 #include "monitor.h"
37 #include "fw_cfg.h"
38 //#include "hpet_emul.h"
39 #include "watchdog.h"
40 #include "smbios.h"
41 #include "console.h"
42
43 #include "goldfish_device.h"
44 #include "goldfish_pipe.h"
45
46 char* audio_input_source = NULL;
47 /* output Bochs bios info messages */
48 //#define DEBUG_BIOS
49
50 #define BIOS_FILENAME "bios.bin"
51 #define VGABIOS_FILENAME "vgabios.bin"
52 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
53
54 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
55
56 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
57 #define ACPI_DATA_SIZE 0x10000
58 #define BIOS_CFG_IOPORT 0x510
59 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
60 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
61
62 #define MAX_IDE_BUS 2
63 #ifndef CONFIG_ANDROID
64 static fdctrl_t *floppy_controller;
65 #endif
66 static RTCState *rtc_state;
67 static PITState *pit;
68 static IOAPICState *ioapic;
69 static PCIDevice *i440fx_state;
70
71 typedef struct rom_reset_data {
72 uint8_t *data;
73 target_phys_addr_t addr;
74 unsigned size;
75 } RomResetData;
76
option_rom_reset(void * _rrd)77 static void option_rom_reset(void *_rrd)
78 {
79 RomResetData *rrd = _rrd;
80
81 cpu_physical_memory_write_rom(rrd->addr, rrd->data, rrd->size);
82 }
83
option_rom_setup_reset(target_phys_addr_t addr,unsigned size)84 static void option_rom_setup_reset(target_phys_addr_t addr, unsigned size)
85 {
86 RomResetData *rrd = qemu_malloc(sizeof *rrd);
87
88 rrd->data = qemu_malloc(size);
89 cpu_physical_memory_read(addr, rrd->data, size);
90 rrd->addr = addr;
91 rrd->size = size;
92 qemu_register_reset(option_rom_reset, 0, rrd);
93 }
94
ioport80_write(void * opaque,uint32_t addr,uint32_t data)95 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
96 {
97 }
98
99 /* MSDOS compatibility mode FPU exception support */
100 static qemu_irq ferr_irq;
101 /* XXX: add IGNNE support */
cpu_set_ferr(CPUX86State * s)102 void cpu_set_ferr(CPUX86State *s)
103 {
104 qemu_irq_raise(ferr_irq);
105 }
106
ioportF0_write(void * opaque,uint32_t addr,uint32_t data)107 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
108 {
109 qemu_irq_lower(ferr_irq);
110 }
111
112 /* TSC handling */
cpu_get_tsc(CPUX86State * env)113 uint64_t cpu_get_tsc(CPUX86State *env)
114 {
115 /* Note: when using kqemu, it is more logical to return the host TSC
116 because kqemu does not trap the RDTSC instruction for
117 performance reasons */
118 #ifdef CONFIG_KQEMU
119 if (env->kqemu_enabled) {
120 return cpu_get_real_ticks();
121 } else
122 #endif
123 {
124 return cpu_get_ticks();
125 }
126 }
127
128 /* SMM support */
cpu_smm_update(CPUState * env)129 void cpu_smm_update(CPUState *env)
130 {
131 if (i440fx_state && env == first_cpu)
132 i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
133 }
134
135
136 /* IRQ handling */
cpu_get_pic_interrupt(CPUState * env)137 int cpu_get_pic_interrupt(CPUState *env)
138 {
139 int intno;
140
141 intno = apic_get_interrupt(env);
142 if (intno >= 0) {
143 /* set irq request if a PIC irq is still pending */
144 /* XXX: improve that */
145 pic_update_irq(isa_pic);
146 return intno;
147 }
148 /* read the irq from the PIC */
149 if (!apic_accept_pic_intr(env))
150 return -1;
151
152 intno = pic_read_irq(isa_pic);
153 return intno;
154 }
155
pic_irq_request(void * opaque,int irq,int level)156 static void pic_irq_request(void *opaque, int irq, int level)
157 {
158 CPUState *env = first_cpu;
159
160 if (env->apic_state) {
161 while (env) {
162 if (apic_accept_pic_intr(env))
163 apic_deliver_pic_intr(env, level);
164 env = env->next_cpu;
165 }
166 } else {
167 if (level)
168 cpu_interrupt(env, CPU_INTERRUPT_HARD);
169 else
170 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
171 }
172 }
173
174 /* PC cmos mappings */
175
176 #define REG_EQUIPMENT_BYTE 0x14
177
178 #ifndef CONFIG_ANDROID
cmos_get_fd_drive_type(int fd0)179 static int cmos_get_fd_drive_type(int fd0)
180 {
181 int val;
182
183 switch (fd0) {
184 case 0:
185 /* 1.44 Mb 3"5 drive */
186 val = 4;
187 break;
188 case 1:
189 /* 2.88 Mb 3"5 drive */
190 val = 5;
191 break;
192 case 2:
193 /* 1.2 Mb 5"5 drive */
194 val = 2;
195 break;
196 default:
197 val = 0;
198 break;
199 }
200 return val;
201 }
202 #endif
203
cmos_init_hd(int type_ofs,int info_ofs,BlockDriverState * hd)204 static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd)
205 {
206 RTCState *s = rtc_state;
207 int cylinders, heads, sectors;
208 bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
209 rtc_set_memory(s, type_ofs, 47);
210 rtc_set_memory(s, info_ofs, cylinders);
211 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
212 rtc_set_memory(s, info_ofs + 2, heads);
213 rtc_set_memory(s, info_ofs + 3, 0xff);
214 rtc_set_memory(s, info_ofs + 4, 0xff);
215 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
216 rtc_set_memory(s, info_ofs + 6, cylinders);
217 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
218 rtc_set_memory(s, info_ofs + 8, sectors);
219 }
220
221 /* convert boot_device letter to something recognizable by the bios */
boot_device2nibble(char boot_device)222 static int boot_device2nibble(char boot_device)
223 {
224 switch(boot_device) {
225 case 'a':
226 case 'b':
227 return 0x01; /* floppy boot */
228 case 'c':
229 return 0x02; /* hard drive boot */
230 case 'd':
231 return 0x03; /* CD-ROM boot */
232 case 'n':
233 return 0x04; /* Network boot */
234 }
235 return 0;
236 }
237
238 /* copy/pasted from cmos_init, should be made a general function
239 and used there as well */
pc_boot_set(void * opaque,const char * boot_device)240 static int pc_boot_set(void *opaque, const char *boot_device)
241 {
242 Monitor *mon = cur_mon;
243 #define PC_MAX_BOOT_DEVICES 3
244 RTCState *s = (RTCState *)opaque;
245 int nbds, bds[3] = { 0, };
246 int i;
247
248 nbds = strlen(boot_device);
249 if (nbds > PC_MAX_BOOT_DEVICES) {
250 monitor_printf(mon, "Too many boot devices for PC\n");
251 return(1);
252 }
253 for (i = 0; i < nbds; i++) {
254 bds[i] = boot_device2nibble(boot_device[i]);
255 if (bds[i] == 0) {
256 monitor_printf(mon, "Invalid boot device for PC: '%c'\n",
257 boot_device[i]);
258 return(1);
259 }
260 }
261 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
262 rtc_set_memory(s, 0x38, (bds[2] << 4));
263 return(0);
264 }
265
266 /* hd_table must contain 4 block drivers */
cmos_init(ram_addr_t ram_size,ram_addr_t above_4g_mem_size,const char * boot_device,BlockDriverState ** hd_table)267 static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
268 const char *boot_device, BlockDriverState **hd_table)
269 {
270 RTCState *s = rtc_state;
271 int nbds, bds[3] = { 0, };
272 int val;
273 #ifndef CONFIG_ANDROID
274 int fd0, fd1, nb;
275 #endif
276 int i;
277
278 /* various important CMOS locations needed by PC/Bochs bios */
279
280 /* memory size */
281 val = 640; /* base memory in K */
282 rtc_set_memory(s, 0x15, val);
283 rtc_set_memory(s, 0x16, val >> 8);
284
285 val = (ram_size / 1024) - 1024;
286 if (val > 65535)
287 val = 65535;
288 rtc_set_memory(s, 0x17, val);
289 rtc_set_memory(s, 0x18, val >> 8);
290 rtc_set_memory(s, 0x30, val);
291 rtc_set_memory(s, 0x31, val >> 8);
292
293 if (above_4g_mem_size) {
294 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
295 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
296 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
297 }
298
299 if (ram_size > (16 * 1024 * 1024))
300 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
301 else
302 val = 0;
303 if (val > 65535)
304 val = 65535;
305 rtc_set_memory(s, 0x34, val);
306 rtc_set_memory(s, 0x35, val >> 8);
307
308 /* set the number of CPU */
309 rtc_set_memory(s, 0x5f, smp_cpus - 1);
310
311 /* set boot devices, and disable floppy signature check if requested */
312 #define PC_MAX_BOOT_DEVICES 3
313 nbds = strlen(boot_device);
314 if (nbds > PC_MAX_BOOT_DEVICES) {
315 fprintf(stderr, "Too many boot devices for PC\n");
316 exit(1);
317 }
318 for (i = 0; i < nbds; i++) {
319 bds[i] = boot_device2nibble(boot_device[i]);
320 if (bds[i] == 0) {
321 fprintf(stderr, "Invalid boot device for PC: '%c'\n",
322 boot_device[i]);
323 exit(1);
324 }
325 }
326 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
327 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
328
329 /* floppy type */
330
331 #ifndef CONFIG_ANDROID
332 fd0 = fdctrl_get_drive_type(floppy_controller, 0);
333 fd1 = fdctrl_get_drive_type(floppy_controller, 1);
334
335 val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1);
336 rtc_set_memory(s, 0x10, val);
337
338 val = 0;
339 nb = 0;
340 if (fd0 < 3)
341 nb++;
342 if (fd1 < 3)
343 nb++;
344 switch (nb) {
345 case 0:
346 break;
347 case 1:
348 val |= 0x01; /* 1 drive, ready for boot */
349 break;
350 case 2:
351 val |= 0x41; /* 2 drives, ready for boot */
352 break;
353 }
354 val |= 0x02; /* FPU is there */
355 val |= 0x04; /* PS/2 mouse installed */
356 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
357 #endif
358
359 /* hard drives */
360
361 rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
362 if (hd_table[0])
363 cmos_init_hd(0x19, 0x1b, hd_table[0]);
364 if (hd_table[1])
365 cmos_init_hd(0x1a, 0x24, hd_table[1]);
366
367 val = 0;
368 for (i = 0; i < 4; i++) {
369 if (hd_table[i]) {
370 int cylinders, heads, sectors, translation;
371 /* NOTE: bdrv_get_geometry_hint() returns the physical
372 geometry. It is always such that: 1 <= sects <= 63, 1
373 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
374 geometry can be different if a translation is done. */
375 translation = bdrv_get_translation_hint(hd_table[i]);
376 if (translation == BIOS_ATA_TRANSLATION_AUTO) {
377 bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors);
378 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
379 /* No translation. */
380 translation = 0;
381 } else {
382 /* LBA translation. */
383 translation = 1;
384 }
385 } else {
386 translation--;
387 }
388 val |= translation << (i * 2);
389 }
390 }
391 rtc_set_memory(s, 0x39, val);
392 }
393
ioport_set_a20(int enable)394 void ioport_set_a20(int enable)
395 {
396 /* XXX: send to all CPUs ? */
397 cpu_x86_set_a20(first_cpu, enable);
398 }
399
ioport_get_a20(void)400 int ioport_get_a20(void)
401 {
402 return ((first_cpu->a20_mask >> 20) & 1);
403 }
404
ioport92_write(void * opaque,uint32_t addr,uint32_t val)405 static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
406 {
407 ioport_set_a20((val >> 1) & 1);
408 /* XXX: bit 0 is fast reset */
409 }
410
ioport92_read(void * opaque,uint32_t addr)411 static uint32_t ioport92_read(void *opaque, uint32_t addr)
412 {
413 return ioport_get_a20() << 1;
414 }
415
416 /***********************************************************/
417 /* Bochs BIOS debug ports */
418
bochs_bios_write(void * opaque,uint32_t addr,uint32_t val)419 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
420 {
421 static const char shutdown_str[8] = "Shutdown";
422 static int shutdown_index = 0;
423
424 switch(addr) {
425 /* Bochs BIOS messages */
426 case 0x400:
427 case 0x401:
428 fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val);
429 exit(1);
430 case 0x402:
431 case 0x403:
432 #ifdef DEBUG_BIOS
433 fprintf(stderr, "%c", val);
434 #endif
435 break;
436 case 0x8900:
437 /* same as Bochs power off */
438 if (val == shutdown_str[shutdown_index]) {
439 shutdown_index++;
440 if (shutdown_index == 8) {
441 shutdown_index = 0;
442 qemu_system_shutdown_request();
443 }
444 } else {
445 shutdown_index = 0;
446 }
447 break;
448
449 /* LGPL'ed VGA BIOS messages */
450 case 0x501:
451 case 0x502:
452 fprintf(stderr, "VGA BIOS panic, line %d\n", val);
453 exit(1);
454 case 0x500:
455 case 0x503:
456 #ifdef DEBUG_BIOS
457 fprintf(stderr, "%c", val);
458 #endif
459 break;
460 }
461 }
462
463 extern uint64_t node_cpumask[MAX_NODES];
464
bochs_bios_init(void)465 static void bochs_bios_init(void)
466 {
467 void *fw_cfg;
468 uint8_t *smbios_table;
469 size_t smbios_len;
470 uint64_t *numa_fw_cfg;
471 int i, j;
472
473 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
474 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
475 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
476 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
477 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
478
479 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
480 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
481 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
482 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
483
484 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
485 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
486 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
487 #ifndef CONFIG_ANDROID
488 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
489 acpi_tables_len);
490 #endif
491 smbios_table = smbios_get_table(&smbios_len);
492 if (smbios_table)
493 fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
494 smbios_table, smbios_len);
495
496 /* allocate memory for the NUMA channel: one (64bit) word for the number
497 * of nodes, one word for each VCPU->node and one word for each node to
498 * hold the amount of memory.
499 */
500 numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8);
501 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
502 for (i = 0; i < smp_cpus; i++) {
503 for (j = 0; j < nb_numa_nodes; j++) {
504 if (node_cpumask[j] & (1 << i)) {
505 numa_fw_cfg[i + 1] = cpu_to_le64(j);
506 break;
507 }
508 }
509 }
510 for (i = 0; i < nb_numa_nodes; i++) {
511 numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
512 }
513 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
514 (1 + smp_cpus + nb_numa_nodes) * 8);
515 }
516
517 /* Generate an initial boot sector which sets state and jump to
518 a specified vector */
generate_bootsect(target_phys_addr_t option_rom,uint32_t gpr[8],uint16_t segs[6],uint16_t ip)519 static void generate_bootsect(target_phys_addr_t option_rom,
520 uint32_t gpr[8], uint16_t segs[6], uint16_t ip)
521 {
522 uint8_t rom[512], *p, *reloc;
523 uint8_t sum;
524 int i;
525
526 memset(rom, 0, sizeof(rom));
527
528 p = rom;
529 /* Make sure we have an option rom signature */
530 *p++ = 0x55;
531 *p++ = 0xaa;
532
533 /* ROM size in sectors*/
534 *p++ = 1;
535
536 /* Hook int19 */
537
538 *p++ = 0x50; /* push ax */
539 *p++ = 0x1e; /* push ds */
540 *p++ = 0x31; *p++ = 0xc0; /* xor ax, ax */
541 *p++ = 0x8e; *p++ = 0xd8; /* mov ax, ds */
542
543 *p++ = 0xc7; *p++ = 0x06; /* movvw _start,0x64 */
544 *p++ = 0x64; *p++ = 0x00;
545 reloc = p;
546 *p++ = 0x00; *p++ = 0x00;
547
548 *p++ = 0x8c; *p++ = 0x0e; /* mov cs,0x66 */
549 *p++ = 0x66; *p++ = 0x00;
550
551 *p++ = 0x1f; /* pop ds */
552 *p++ = 0x58; /* pop ax */
553 *p++ = 0xcb; /* lret */
554
555 /* Actual code */
556 *reloc = (p - rom);
557
558 *p++ = 0xfa; /* CLI */
559 *p++ = 0xfc; /* CLD */
560
561 for (i = 0; i < 6; i++) {
562 if (i == 1) /* Skip CS */
563 continue;
564
565 *p++ = 0xb8; /* MOV AX,imm16 */
566 *p++ = segs[i];
567 *p++ = segs[i] >> 8;
568 *p++ = 0x8e; /* MOV <seg>,AX */
569 *p++ = 0xc0 + (i << 3);
570 }
571
572 for (i = 0; i < 8; i++) {
573 *p++ = 0x66; /* 32-bit operand size */
574 *p++ = 0xb8 + i; /* MOV <reg>,imm32 */
575 *p++ = gpr[i];
576 *p++ = gpr[i] >> 8;
577 *p++ = gpr[i] >> 16;
578 *p++ = gpr[i] >> 24;
579 }
580
581 *p++ = 0xea; /* JMP FAR */
582 *p++ = ip; /* IP */
583 *p++ = ip >> 8;
584 *p++ = segs[1]; /* CS */
585 *p++ = segs[1] >> 8;
586
587 /* sign rom */
588 sum = 0;
589 for (i = 0; i < (sizeof(rom) - 1); i++)
590 sum += rom[i];
591 rom[sizeof(rom) - 1] = -sum;
592
593 cpu_physical_memory_write_rom(option_rom, rom, sizeof(rom));
594 option_rom_setup_reset(option_rom, sizeof (rom));
595 }
596
get_file_size(FILE * f)597 static long get_file_size(FILE *f)
598 {
599 long where, size;
600
601 /* XXX: on Unix systems, using fstat() probably makes more sense */
602
603 where = ftell(f);
604 fseek(f, 0, SEEK_END);
605 size = ftell(f);
606 fseek(f, where, SEEK_SET);
607
608 return size;
609 }
610
load_linux(target_phys_addr_t option_rom,const char * kernel_filename,const char * initrd_filename,const char * kernel_cmdline,target_phys_addr_t max_ram_size)611 static void load_linux(target_phys_addr_t option_rom,
612 const char *kernel_filename,
613 const char *initrd_filename,
614 const char *kernel_cmdline,
615 target_phys_addr_t max_ram_size)
616 {
617 uint16_t protocol;
618 uint32_t gpr[8];
619 uint16_t seg[6];
620 uint16_t real_seg;
621 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
622 uint32_t initrd_max;
623 uint8_t header[1024];
624 target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
625 FILE *f, *fi;
626
627 /* Align to 16 bytes as a paranoia measure */
628 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
629
630 /* load the kernel header */
631 f = fopen(kernel_filename, "rb");
632 if (!f || !(kernel_size = get_file_size(f)) ||
633 fread(header, 1, 1024, f) != 1024) {
634 fprintf(stderr, "qemu: could not load kernel '%s'\n",
635 kernel_filename);
636 exit(1);
637 }
638
639 /* kernel protocol version */
640 #if 0
641 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
642 #endif
643 if (ldl_p(header+0x202) == 0x53726448)
644 protocol = lduw_p(header+0x206);
645 else
646 protocol = 0;
647
648 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
649 /* Low kernel */
650 real_addr = 0x90000;
651 cmdline_addr = 0x9a000 - cmdline_size;
652 prot_addr = 0x10000;
653 } else if (protocol < 0x202) {
654 /* High but ancient kernel */
655 real_addr = 0x90000;
656 cmdline_addr = 0x9a000 - cmdline_size;
657 prot_addr = 0x100000;
658 } else {
659 /* High and recent kernel */
660 real_addr = 0x10000;
661 cmdline_addr = 0x20000;
662 prot_addr = 0x100000;
663 }
664
665 #if 0
666 fprintf(stderr,
667 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
668 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
669 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
670 real_addr,
671 cmdline_addr,
672 prot_addr);
673 #endif
674
675 /* highest address for loading the initrd */
676 if (protocol >= 0x203)
677 initrd_max = ldl_p(header+0x22c);
678 else
679 initrd_max = 0x37ffffff;
680
681 if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
682 initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
683
684 /* kernel command line */
685 pstrcpy_targphys(cmdline_addr, 4096, kernel_cmdline);
686
687 if (protocol >= 0x202) {
688 stl_p(header+0x228, cmdline_addr);
689 } else {
690 stw_p(header+0x20, 0xA33F);
691 stw_p(header+0x22, cmdline_addr-real_addr);
692 }
693
694 /* loader type */
695 /* High nybble = B reserved for Qemu; low nybble is revision number.
696 If this code is substantially changed, you may want to consider
697 incrementing the revision. */
698 if (protocol >= 0x200)
699 header[0x210] = 0xB0;
700
701 /* heap */
702 if (protocol >= 0x201) {
703 header[0x211] |= 0x80; /* CAN_USE_HEAP */
704 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
705 }
706
707 /* load initrd */
708 if (initrd_filename) {
709 if (protocol < 0x200) {
710 fprintf(stderr, "qemu: linux kernel too old to load a ram disk %s, %s, %s\n",
711 kernel_filename, initrd_filename, kernel_cmdline);
712 exit(1);
713 }
714
715 fi = fopen(initrd_filename, "rb");
716 if (!fi) {
717 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
718 initrd_filename);
719 exit(1);
720 }
721
722 initrd_size = get_file_size(fi);
723 initrd_addr = (initrd_max-initrd_size) & ~4095;
724
725 if (!fread_targphys_ok(initrd_addr, initrd_size, fi)) {
726 fprintf(stderr, "qemu: read error on initial ram disk '%s'\n",
727 initrd_filename);
728 exit(1);
729 }
730 fclose(fi);
731
732 stl_p(header+0x218, initrd_addr);
733 stl_p(header+0x21c, initrd_size);
734 }
735
736 /* store the finalized header and load the rest of the kernel */
737 cpu_physical_memory_write(real_addr, header, 1024);
738
739 setup_size = header[0x1f1];
740 if (setup_size == 0)
741 setup_size = 4;
742
743 setup_size = (setup_size+1)*512;
744 kernel_size -= setup_size; /* Size of protected-mode code */
745
746 if (!fread_targphys_ok(real_addr+1024, setup_size-1024, f) ||
747 !fread_targphys_ok(prot_addr, kernel_size, f)) {
748 fprintf(stderr, "qemu: read error on kernel '%s'\n",
749 kernel_filename);
750 exit(1);
751 }
752 fclose(f);
753
754 /* generate bootsector to set up the initial register state */
755 real_seg = real_addr >> 4;
756 seg[0] = seg[2] = seg[3] = seg[4] = seg[4] = real_seg;
757 seg[1] = real_seg+0x20; /* CS */
758 memset(gpr, 0, sizeof gpr);
759 gpr[4] = cmdline_addr-real_addr-16; /* SP (-16 is paranoia) */
760
761 option_rom_setup_reset(real_addr, setup_size);
762 option_rom_setup_reset(prot_addr, kernel_size);
763 option_rom_setup_reset(cmdline_addr, cmdline_size);
764 if (initrd_filename)
765 option_rom_setup_reset(initrd_addr, initrd_size);
766
767 generate_bootsect(option_rom, gpr, seg, 0);
768 }
769
main_cpu_reset(void * opaque)770 static void main_cpu_reset(void *opaque)
771 {
772 CPUState *env = opaque;
773 cpu_reset(env);
774 }
775
776 static const int ide_iobase[2] = { 0x1f0, 0x170 };
777 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
778 static const int ide_irq[2] = { 14, 15 };
779
780 #define NE2000_NB_MAX 6
781
782 static int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
783 static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
784
785 /* static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
786 static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
787
788 static int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
789 static int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 }; */
790
791 #ifdef HAS_AUDIO
792 #ifndef CONFIG_ANDROID
audio_init(PCIBus * pci_bus,qemu_irq * pic)793 static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
794 {
795 struct soundhw *c;
796
797 for (c = soundhw; c->name; ++c) {
798 if (c->enabled) {
799 if (c->isa) {
800 c->init.init_isa(pic);
801 } else {
802 if (pci_bus) {
803 c->init.init_pci(pci_bus);
804 }
805 }
806 }
807 }
808 }
809 #endif
810 #endif
811
pc_init_ne2k_isa(NICInfo * nd,qemu_irq * pic)812 static void pc_init_ne2k_isa(NICInfo *nd, qemu_irq *pic)
813 {
814 static int nb_ne2k = 0;
815
816 if (nb_ne2k == NE2000_NB_MAX)
817 return;
818 isa_ne2000_init(ne2000_io[nb_ne2k], pic[ne2000_irq[nb_ne2k]], nd);
819 nb_ne2k++;
820 }
821
load_option_rom(const char * oprom,target_phys_addr_t start,target_phys_addr_t end)822 static int load_option_rom(const char *oprom, target_phys_addr_t start,
823 target_phys_addr_t end)
824 {
825 int size;
826 char *filename;
827
828 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, oprom);
829 if (filename) {
830 size = get_image_size(filename);
831 if (size > 0 && start + size > end) {
832 fprintf(stderr, "Not enough space to load option rom '%s'\n",
833 oprom);
834 exit(1);
835 }
836 size = load_image_targphys(filename, start, end - start);
837 qemu_free(filename);
838 } else {
839 size = -1;
840 }
841 if (size < 0) {
842 fprintf(stderr, "Could not load option rom '%s'\n", oprom);
843 exit(1);
844 }
845 /* Round up optiom rom size to the next 2k boundary */
846 size = (size + 2047) & ~2047;
847 option_rom_setup_reset(start, size);
848 return size;
849 }
850
cpu_is_bsp(CPUState * env)851 int cpu_is_bsp(CPUState *env)
852 {
853 return env->cpuid_apic_id == 0;
854 }
855
856 static struct goldfish_device event0_device = {
857 .name = "goldfish_events",
858 .id = 0,
859 .size = 0x1000,
860 /* FIXME: This is just a work around before we have a permanent fix on
861 * increasing number of IRQs available for x86 sysimages. IRQ3 is normally
862 * assigned to COM2/COM4, and we have our own custom IRQs for those. So,
863 * it's safe to reserve it for the events device. */
864 .irq = 3,
865 .irq_count = 1
866 };
867
868 static struct goldfish_device nand_device = {
869 .name = "goldfish_nand",
870 .id = 0,
871 .size = 0x1000
872 };
873
874 void goldfish_memlog_init(uint32_t base);
875
876 /* PC hardware initialisation */
pc_init1(ram_addr_t ram_size,const char * boot_device,const char * kernel_filename,const char * kernel_cmdline,const char * initrd_filename,int pci_enabled,const char * cpu_model)877 static void pc_init1(ram_addr_t ram_size,
878 const char *boot_device,
879 const char *kernel_filename, const char *kernel_cmdline,
880 const char *initrd_filename,
881 int pci_enabled, const char *cpu_model)
882 {
883 char *filename;
884 int ret, linux_boot, i;
885 ram_addr_t ram_addr, bios_offset, option_rom_offset;
886 ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
887 int bios_size, isa_bios_size, oprom_area_size;
888 PCIBus *pci_bus;
889 int piix3_devfn = -1;
890 CPUState *env;
891 qemu_irq *cpu_irq;
892 qemu_irq *i8259;
893 #ifndef CONFIG_ANDROID
894 int index;
895 #endif
896 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
897 #ifndef CONFIG_ANDROID
898 BlockDriverState *fd[MAX_FD];
899 #endif
900 int using_vga = cirrus_vga_enabled || std_vga_enabled || vmsvga_enabled;
901
902 if (ram_size >= 0xe0000000 ) {
903 above_4g_mem_size = ram_size - 0xe0000000;
904 below_4g_mem_size = 0xe0000000;
905 } else {
906 below_4g_mem_size = ram_size;
907 }
908
909 linux_boot = (kernel_filename != NULL);
910
911 /* init CPUs */
912 if (cpu_model == NULL) {
913 #ifdef TARGET_X86_64
914 cpu_model = "qemu64";
915 #else
916 cpu_model = "qemu32";
917 #endif
918 }
919
920 for(i = 0; i < smp_cpus; i++) {
921 env = cpu_init(cpu_model);
922 if (!env) {
923 fprintf(stderr, "Unable to find x86 CPU definition\n");
924 exit(1);
925 }
926 if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
927 env->cpuid_apic_id = env->cpu_index;
928 apic_init(env);
929 }
930 qemu_register_reset(main_cpu_reset, 0, env);
931 }
932 #ifndef CONFIG_ANDROID
933 vmport_init();
934
935 /* allocate RAM */
936 ram_addr = qemu_ram_alloc(NULL, "pc.ram",
937 below_4g_mem_size + above_4g_mem_size);
938 cpu_register_physical_memory(0, 0xa0000, ram_addr);
939 cpu_register_physical_memory(0x100000,
940 below_4g_mem_size - 0x100000,
941 ram_addr + 0x100000);
942 if (above_4g_mem_size > 0) {
943 cpu_register_physical_memory(0x100000000ULL, above_4g_mem_size,
944 ram_addr + below_4g_mem_size);
945 }
946 #else
947 /*
948 * Allocate a single contiguous RAM so that the goldfish
949 * framebuffer can work well especially when the frame buffer is
950 * large.
951 */
952 ram_addr = qemu_ram_alloc(NULL, "pc.ram", below_4g_mem_size);
953 cpu_register_physical_memory(0, below_4g_mem_size, ram_addr);
954 #endif
955
956 /* above 4giga memory allocation */
957 if (above_4g_mem_size > 0) {
958 #if TARGET_PHYS_ADDR_BITS == 32
959 hw_error("To much RAM for 32-bit physical address");
960 #else
961 ram_addr = qemu_ram_alloc(above_4g_mem_size);
962 cpu_register_physical_memory(0x100000000ULL,
963 above_4g_mem_size,
964 ram_addr);
965 #endif
966 }
967
968
969 /* BIOS load */
970 if (bios_name == NULL)
971 bios_name = BIOS_FILENAME;
972 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
973 if (filename) {
974 bios_size = get_image_size(filename);
975 } else {
976 bios_size = -1;
977 }
978 if (bios_size <= 0 ||
979 (bios_size % 65536) != 0) {
980 goto bios_error;
981 }
982 bios_offset = qemu_ram_alloc(NULL, "bios.bin", bios_size);
983 ret = load_image(filename, qemu_get_ram_ptr(bios_offset));
984 if (ret != bios_size) {
985 bios_error:
986 fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
987 exit(1);
988 }
989 if (filename) {
990 qemu_free(filename);
991 }
992 /* map the last 128KB of the BIOS in ISA space */
993 isa_bios_size = bios_size;
994 if (isa_bios_size > (128 * 1024))
995 isa_bios_size = 128 * 1024;
996 cpu_register_physical_memory(0x100000 - isa_bios_size,
997 isa_bios_size,
998 (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
999
1000
1001
1002 option_rom_offset = qemu_ram_alloc(NULL, "pc.rom", 0x20000);
1003 oprom_area_size = 0;
1004 cpu_register_physical_memory(0xc0000, 0x20000, option_rom_offset);
1005
1006 if (using_vga) {
1007 const char *vgabios_filename;
1008 /* VGA BIOS load */
1009 if (cirrus_vga_enabled) {
1010 vgabios_filename = VGABIOS_CIRRUS_FILENAME;
1011 } else {
1012 vgabios_filename = VGABIOS_FILENAME;
1013 }
1014 oprom_area_size = load_option_rom(vgabios_filename, 0xc0000, 0xe0000);
1015 }
1016 /* Although video roms can grow larger than 0x8000, the area between
1017 * 0xc0000 - 0xc8000 is reserved for them. It means we won't be looking
1018 * for any other kind of option rom inside this area */
1019 if (oprom_area_size < 0x8000)
1020 oprom_area_size = 0x8000;
1021
1022 if (linux_boot) {
1023 load_linux(0xc0000 + oprom_area_size,
1024 kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
1025 oprom_area_size += 2048;
1026 }
1027
1028 for (i = 0; i < nb_option_roms; i++) {
1029 oprom_area_size += load_option_rom(option_rom[i],
1030 0xc0000 + oprom_area_size, 0xe0000);
1031 }
1032
1033 /* map all the bios at the top of memory */
1034 cpu_register_physical_memory((uint32_t)(-bios_size),
1035 bios_size, bios_offset | IO_MEM_ROM);
1036
1037 bochs_bios_init();
1038
1039 cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
1040 i8259 = i8259_init(cpu_irq[0]);
1041 ferr_irq = i8259[GFD_ERR_IRQ];
1042
1043 #define IRQ_PDEV_BUS 4
1044 goldfish_device_init(i8259, 0xff010000, 0x7f0000, 5, 5);
1045 goldfish_device_bus_init(0xff001000, IRQ_PDEV_BUS);
1046
1047 if (android_hw->hw_battery)
1048 goldfish_battery_init();
1049
1050 goldfish_memlog_init(0);
1051
1052 #ifdef CONFIG_NAND
1053 goldfish_add_device_no_io(&nand_device);
1054 nand_dev_init(nand_device.base);
1055 pipe_dev_init();
1056 #endif
1057
1058 {
1059 DriveInfo* info = drive_get( IF_IDE, 0, 0 );
1060 if (info != NULL) {
1061 goldfish_mmc_init(0xff005000, 0, info->bdrv);
1062 }
1063 }
1064
1065 if (pci_enabled) {
1066 pci_bus = i440fx_init(&i440fx_state, i8259);
1067 piix3_devfn = piix3_init(pci_bus, -1);
1068 } else {
1069 pci_bus = NULL;
1070 }
1071
1072 /* init basic PC hardware */
1073 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
1074
1075 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
1076
1077 #ifndef CONFIG_ANDROID
1078 if (cirrus_vga_enabled) {
1079 if (pci_enabled) {
1080 pci_cirrus_vga_init(pci_bus);
1081 } else {
1082 isa_cirrus_vga_init();
1083 }
1084 } else if (vmsvga_enabled) {
1085 if (pci_enabled)
1086 pci_vmsvga_init(pci_bus);
1087 else
1088 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
1089 } else if (std_vga_enabled) {
1090 if (pci_enabled) {
1091 pci_vga_init(pci_bus, 0, 0);
1092 } else {
1093 isa_vga_init();
1094 }
1095 }
1096 #endif
1097
1098 rtc_state = rtc_init(0x70, i8259[8], 2000);
1099
1100 qemu_register_boot_set(pc_boot_set, rtc_state);
1101
1102 register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
1103 register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
1104
1105 if (pci_enabled) {
1106 ioapic = ioapic_init();
1107 }
1108 pit = pit_init(0x40, i8259[0]);
1109
1110 #ifndef CONFIG_ANDROID
1111 pcspk_init(pit);
1112
1113 if (!no_hpet) {
1114 hpet_init(i8259);
1115 }
1116 #endif
1117
1118 if (pci_enabled) {
1119 pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic);
1120 }
1121
1122 goldfish_tty_add(serial_hds[0], 0, 0, 0);
1123 /* FIXME: This is just a work around before we have a permanent fix on
1124 * increasing number of IRQs available for x86 sysimages. In order to free up
1125 * some IRQs for a better use, we limit number of TTY devices by 2. Normally
1126 * we don't need more than that, so always having 4 of them would waste two
1127 * precious IRQs. */
1128 #if 0
1129 for(i = 1; i < MAX_SERIAL_PORTS; i++) {
1130 #else
1131 for(i = 1; i < 2; i++) {
1132 #endif
1133 if(serial_hds[i]) {
1134 goldfish_tty_add(serial_hds[i], i, 0, 0);
1135 }
1136 }
1137
1138 #ifndef CONFIG_ANDROID
1139 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
1140 if (serial_hds[i]) {
1141 serial_init(serial_io[i], i8259[serial_irq[i]], 115200,
1142 serial_hds[i]);
1143 }
1144 }
1145
1146 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
1147 if (parallel_hds[i]) {
1148 parallel_init(parallel_io[i], i8259[parallel_irq[i]],
1149 parallel_hds[i]);
1150 }
1151 }
1152 #endif
1153
1154 watchdog_pc_init(pci_bus);
1155
1156 for(i = 0; i < nb_nics; i++) {
1157 NICInfo *nd = &nd_table[i];
1158
1159 if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
1160 pc_init_ne2k_isa(nd, i8259);
1161 else
1162 pci_nic_init(pci_bus, nd, -1, "ne2k_pci");
1163 }
1164
1165 #ifdef CONFIG_ANDROID
1166 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++)
1167 hd[i] = NULL;
1168 #else
1169 qemu_system_hot_add_init();
1170
1171 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
1172 fprintf(stderr, "qemu: too many IDE bus\n");
1173 exit(1);
1174 }
1175
1176 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
1177 index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
1178 if (index != -1)
1179 hd[i] = drives_table[index].bdrv;
1180 else
1181 hd[i] = NULL;
1182 }
1183
1184 if (pci_enabled) {
1185 pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
1186 } else {
1187 for(i = 0; i < MAX_IDE_BUS; i++) {
1188 isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
1189 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
1190 }
1191 }
1192 #endif
1193
1194 i8042_init(i8259[GFD_KBD_IRQ], i8259[GFD_MOUSE_IRQ], 0x60);
1195 DMA_init(0);
1196
1197 goldfish_fb_init(0);
1198
1199 goldfish_add_device_no_io(&event0_device);
1200 events_dev_init(event0_device.base, i8259[event0_device.irq]);
1201
1202 #ifdef HAS_AUDIO
1203 #ifndef CONFIG_ANDROID
1204 audio_init(pci_enabled ? pci_bus : NULL, i8259);
1205 #else
1206 goldfish_audio_init(0xff004000, 0, audio_input_source);
1207 #endif
1208 #endif
1209
1210 #ifndef CONFIG_ANDROID
1211 for(i = 0; i < MAX_FD; i++) {
1212 index = drive_get_index(IF_FLOPPY, 0, i);
1213 if (index != -1)
1214 fd[i] = drives_table[index].bdrv;
1215 else
1216 fd[i] = NULL;
1217 }
1218
1219 floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
1220 #endif
1221
1222 cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
1223
1224 #ifndef CONFIG_ANDROID
1225 if (pci_enabled && usb_enabled) {
1226 usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
1227 }
1228
1229 if (pci_enabled && acpi_enabled) {
1230 uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
1231 i2c_bus *smbus;
1232
1233 /* TODO: Populate SPD eeprom data. */
1234 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, i8259[9]);
1235 for (i = 0; i < 8; i++) {
1236 DeviceState *eeprom;
1237 eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
1238 qdev_set_prop_int(eeprom, "address", 0x50 + i);
1239 qdev_set_prop_ptr(eeprom, "data", eeprom_buf + (i * 256));
1240 qdev_init(eeprom);
1241 }
1242 }
1243 #endif
1244
1245 if (i440fx_state) {
1246 i440fx_init_memory_mappings(i440fx_state);
1247 }
1248
1249 if (pci_enabled) {
1250 int max_bus;
1251 int bus;
1252
1253 max_bus = drive_get_max_bus(IF_SCSI);
1254 for (bus = 0; bus <= max_bus; bus++) {
1255 pci_create_simple(pci_bus, -1, "lsi53c895a");
1256 }
1257 }
1258 #ifndef CONFIG_ANDROID
1259 /* Add virtio block devices */
1260 if (pci_enabled) {
1261 int index;
1262 int unit_id = 0;
1263
1264 while ((index = drive_get_index(IF_VIRTIO, 0, unit_id)) != -1) {
1265 pci_create_simple(pci_bus, -1, "virtio-blk-pci");
1266 unit_id++;
1267 }
1268 }
1269
1270 /* Add virtio balloon device */
1271 if (pci_enabled && !no_virtio_balloon) {
1272 pci_create_simple(pci_bus, -1, "virtio-balloon-pci");
1273 }
1274
1275 /* Add virtio console devices */
1276 if (pci_enabled) {
1277 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
1278 if (virtcon_hds[i]) {
1279 pci_create_simple(pci_bus, -1, "virtio-console-pci");
1280 }
1281 }
1282 }
1283 #endif
1284 }
1285
1286 static void pc_init_pci(ram_addr_t ram_size,
1287 const char *boot_device,
1288 const char *kernel_filename,
1289 const char *kernel_cmdline,
1290 const char *initrd_filename,
1291 const char *cpu_model)
1292 {
1293 pc_init1(ram_size, boot_device,
1294 kernel_filename, kernel_cmdline,
1295 initrd_filename, 1, cpu_model);
1296 }
1297
1298 static void pc_init_isa(ram_addr_t ram_size,
1299 const char *boot_device,
1300 const char *kernel_filename,
1301 const char *kernel_cmdline,
1302 const char *initrd_filename,
1303 const char *cpu_model)
1304 {
1305 pc_init1(ram_size, boot_device,
1306 kernel_filename, kernel_cmdline,
1307 initrd_filename, 0, cpu_model);
1308 }
1309
1310 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
1311 BIOS will read it and start S3 resume at POST Entry */
1312 void cmos_set_s3_resume(void)
1313 {
1314 if (rtc_state)
1315 rtc_set_memory(rtc_state, 0xF, 0xFE);
1316 }
1317
1318 static QEMUMachine pc_machine = {
1319 .name = "pc",
1320 .desc = "Standard PC",
1321 .init = pc_init_pci,
1322 .max_cpus = 255,
1323 .is_default = 1,
1324 };
1325
1326 static QEMUMachine isapc_machine = {
1327 .name = "isapc",
1328 .desc = "ISA-only PC",
1329 .init = pc_init_isa,
1330 .max_cpus = 1,
1331 };
1332
1333 static void pc_machine_init(void)
1334 {
1335 qemu_register_machine(&pc_machine);
1336 qemu_register_machine(&isapc_machine);
1337 }
1338
1339 machine_init(pc_machine_init);
1340