trace: Update docs to use example events that exist
[qemu.git] / arch_init.c
blob9a5a0e31b344b0f5e0d789550d749079768febc1
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include <stdint.h>
25 #include <stdarg.h>
26 #include <stdlib.h>
27 #ifndef _WIN32
28 #include <sys/types.h>
29 #include <sys/mman.h>
30 #endif
31 #include "config.h"
32 #include "monitor.h"
33 #include "sysemu.h"
34 #include "arch_init.h"
35 #include "audio/audio.h"
36 #include "hw/pc.h"
37 #include "hw/pci.h"
38 #include "hw/audiodev.h"
39 #include "kvm.h"
40 #include "migration.h"
41 #include "net.h"
42 #include "gdbstub.h"
43 #include "hw/smbios.h"
45 #ifdef TARGET_SPARC
46 int graphic_width = 1024;
47 int graphic_height = 768;
48 int graphic_depth = 8;
49 #else
50 int graphic_width = 800;
51 int graphic_height = 600;
52 int graphic_depth = 15;
53 #endif
55 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
57 #if defined(TARGET_ALPHA)
58 #define QEMU_ARCH QEMU_ARCH_ALPHA
59 #elif defined(TARGET_ARM)
60 #define QEMU_ARCH QEMU_ARCH_ARM
61 #elif defined(TARGET_CRIS)
62 #define QEMU_ARCH QEMU_ARCH_CRIS
63 #elif defined(TARGET_I386)
64 #define QEMU_ARCH QEMU_ARCH_I386
65 #elif defined(TARGET_M68K)
66 #define QEMU_ARCH QEMU_ARCH_M68K
67 #elif defined(TARGET_LM32)
68 #define QEMU_ARCH QEMU_ARCH_LM32
69 #elif defined(TARGET_MICROBLAZE)
70 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
71 #elif defined(TARGET_MIPS)
72 #define QEMU_ARCH QEMU_ARCH_MIPS
73 #elif defined(TARGET_PPC)
74 #define QEMU_ARCH QEMU_ARCH_PPC
75 #elif defined(TARGET_S390X)
76 #define QEMU_ARCH QEMU_ARCH_S390X
77 #elif defined(TARGET_SH4)
78 #define QEMU_ARCH QEMU_ARCH_SH4
79 #elif defined(TARGET_SPARC)
80 #define QEMU_ARCH QEMU_ARCH_SPARC
81 #elif defined(TARGET_XTENSA)
82 #define QEMU_ARCH QEMU_ARCH_XTENSA
83 #endif
85 const uint32_t arch_type = QEMU_ARCH;
87 /***********************************************************/
88 /* ram save/restore */
90 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
91 #define RAM_SAVE_FLAG_COMPRESS 0x02
92 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
93 #define RAM_SAVE_FLAG_PAGE 0x08
94 #define RAM_SAVE_FLAG_EOS 0x10
95 #define RAM_SAVE_FLAG_CONTINUE 0x20
97 static int is_dup_page(uint8_t *page, uint8_t ch)
99 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
100 uint32_t *array = (uint32_t *)page;
101 int i;
103 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
104 if (array[i] != val) {
105 return 0;
109 return 1;
112 static RAMBlock *last_block;
113 static ram_addr_t last_offset;
115 static int ram_save_block(QEMUFile *f)
117 RAMBlock *block = last_block;
118 ram_addr_t offset = last_offset;
119 ram_addr_t current_addr;
120 int bytes_sent = 0;
122 if (!block)
123 block = QLIST_FIRST(&ram_list.blocks);
125 current_addr = block->offset + offset;
127 do {
128 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
129 uint8_t *p;
130 int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
132 cpu_physical_memory_reset_dirty(current_addr,
133 current_addr + TARGET_PAGE_SIZE,
134 MIGRATION_DIRTY_FLAG);
136 p = block->host + offset;
138 if (is_dup_page(p, *p)) {
139 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
140 if (!cont) {
141 qemu_put_byte(f, strlen(block->idstr));
142 qemu_put_buffer(f, (uint8_t *)block->idstr,
143 strlen(block->idstr));
145 qemu_put_byte(f, *p);
146 bytes_sent = 1;
147 } else {
148 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
149 if (!cont) {
150 qemu_put_byte(f, strlen(block->idstr));
151 qemu_put_buffer(f, (uint8_t *)block->idstr,
152 strlen(block->idstr));
154 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
155 bytes_sent = TARGET_PAGE_SIZE;
158 break;
161 offset += TARGET_PAGE_SIZE;
162 if (offset >= block->length) {
163 offset = 0;
164 block = QLIST_NEXT(block, next);
165 if (!block)
166 block = QLIST_FIRST(&ram_list.blocks);
169 current_addr = block->offset + offset;
171 } while (current_addr != last_block->offset + last_offset);
173 last_block = block;
174 last_offset = offset;
176 return bytes_sent;
179 static uint64_t bytes_transferred;
181 static ram_addr_t ram_save_remaining(void)
183 RAMBlock *block;
184 ram_addr_t count = 0;
186 QLIST_FOREACH(block, &ram_list.blocks, next) {
187 ram_addr_t addr;
188 for (addr = block->offset; addr < block->offset + block->length;
189 addr += TARGET_PAGE_SIZE) {
190 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
191 count++;
196 return count;
199 uint64_t ram_bytes_remaining(void)
201 return ram_save_remaining() * TARGET_PAGE_SIZE;
204 uint64_t ram_bytes_transferred(void)
206 return bytes_transferred;
209 uint64_t ram_bytes_total(void)
211 RAMBlock *block;
212 uint64_t total = 0;
214 QLIST_FOREACH(block, &ram_list.blocks, next)
215 total += block->length;
217 return total;
220 static int block_compar(const void *a, const void *b)
222 RAMBlock * const *ablock = a;
223 RAMBlock * const *bblock = b;
224 if ((*ablock)->offset < (*bblock)->offset) {
225 return -1;
226 } else if ((*ablock)->offset > (*bblock)->offset) {
227 return 1;
229 return 0;
232 static void sort_ram_list(void)
234 RAMBlock *block, *nblock, **blocks;
235 int n;
236 n = 0;
237 QLIST_FOREACH(block, &ram_list.blocks, next) {
238 ++n;
240 blocks = g_malloc(n * sizeof *blocks);
241 n = 0;
242 QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
243 blocks[n++] = block;
244 QLIST_REMOVE(block, next);
246 qsort(blocks, n, sizeof *blocks, block_compar);
247 while (--n >= 0) {
248 QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
250 g_free(blocks);
253 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
255 ram_addr_t addr;
256 uint64_t bytes_transferred_last;
257 double bwidth = 0;
258 uint64_t expected_time = 0;
260 if (stage < 0) {
261 cpu_physical_memory_set_dirty_tracking(0);
262 return 0;
265 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
266 qemu_file_set_error(f);
267 return 0;
270 if (stage == 1) {
271 RAMBlock *block;
272 bytes_transferred = 0;
273 last_block = NULL;
274 last_offset = 0;
275 sort_ram_list();
277 /* Make sure all dirty bits are set */
278 QLIST_FOREACH(block, &ram_list.blocks, next) {
279 for (addr = block->offset; addr < block->offset + block->length;
280 addr += TARGET_PAGE_SIZE) {
281 if (!cpu_physical_memory_get_dirty(addr,
282 MIGRATION_DIRTY_FLAG)) {
283 cpu_physical_memory_set_dirty(addr);
288 /* Enable dirty memory tracking */
289 cpu_physical_memory_set_dirty_tracking(1);
291 qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
293 QLIST_FOREACH(block, &ram_list.blocks, next) {
294 qemu_put_byte(f, strlen(block->idstr));
295 qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
296 qemu_put_be64(f, block->length);
300 bytes_transferred_last = bytes_transferred;
301 bwidth = qemu_get_clock_ns(rt_clock);
303 while (!qemu_file_rate_limit(f)) {
304 int bytes_sent;
306 bytes_sent = ram_save_block(f);
307 bytes_transferred += bytes_sent;
308 if (bytes_sent == 0) { /* no more blocks */
309 break;
313 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
314 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
316 /* if we haven't transferred anything this round, force expected_time to a
317 * a very high value, but without crashing */
318 if (bwidth == 0) {
319 bwidth = 0.000001;
322 /* try transferring iterative blocks of memory */
323 if (stage == 3) {
324 int bytes_sent;
326 /* flush all remaining blocks regardless of rate limiting */
327 while ((bytes_sent = ram_save_block(f)) != 0) {
328 bytes_transferred += bytes_sent;
330 cpu_physical_memory_set_dirty_tracking(0);
333 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
335 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
337 return (stage == 2) && (expected_time <= migrate_max_downtime());
340 static inline void *host_from_stream_offset(QEMUFile *f,
341 ram_addr_t offset,
342 int flags)
344 static RAMBlock *block = NULL;
345 char id[256];
346 uint8_t len;
348 if (flags & RAM_SAVE_FLAG_CONTINUE) {
349 if (!block) {
350 fprintf(stderr, "Ack, bad migration stream!\n");
351 return NULL;
354 return block->host + offset;
357 len = qemu_get_byte(f);
358 qemu_get_buffer(f, (uint8_t *)id, len);
359 id[len] = 0;
361 QLIST_FOREACH(block, &ram_list.blocks, next) {
362 if (!strncmp(id, block->idstr, sizeof(id)))
363 return block->host + offset;
366 fprintf(stderr, "Can't find block %s!\n", id);
367 return NULL;
370 int ram_load(QEMUFile *f, void *opaque, int version_id)
372 ram_addr_t addr;
373 int flags;
375 if (version_id < 3 || version_id > 4) {
376 return -EINVAL;
379 do {
380 addr = qemu_get_be64(f);
382 flags = addr & ~TARGET_PAGE_MASK;
383 addr &= TARGET_PAGE_MASK;
385 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
386 if (version_id == 3) {
387 if (addr != ram_bytes_total()) {
388 return -EINVAL;
390 } else {
391 /* Synchronize RAM block list */
392 char id[256];
393 ram_addr_t length;
394 ram_addr_t total_ram_bytes = addr;
396 while (total_ram_bytes) {
397 RAMBlock *block;
398 uint8_t len;
400 len = qemu_get_byte(f);
401 qemu_get_buffer(f, (uint8_t *)id, len);
402 id[len] = 0;
403 length = qemu_get_be64(f);
405 QLIST_FOREACH(block, &ram_list.blocks, next) {
406 if (!strncmp(id, block->idstr, sizeof(id))) {
407 if (block->length != length)
408 return -EINVAL;
409 break;
413 if (!block) {
414 fprintf(stderr, "Unknown ramblock \"%s\", cannot "
415 "accept migration\n", id);
416 return -EINVAL;
419 total_ram_bytes -= length;
424 if (flags & RAM_SAVE_FLAG_COMPRESS) {
425 void *host;
426 uint8_t ch;
428 if (version_id == 3)
429 host = qemu_get_ram_ptr(addr);
430 else
431 host = host_from_stream_offset(f, addr, flags);
432 if (!host) {
433 return -EINVAL;
436 ch = qemu_get_byte(f);
437 memset(host, ch, TARGET_PAGE_SIZE);
438 #ifndef _WIN32
439 if (ch == 0 &&
440 (!kvm_enabled() || kvm_has_sync_mmu())) {
441 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
443 #endif
444 } else if (flags & RAM_SAVE_FLAG_PAGE) {
445 void *host;
447 if (version_id == 3)
448 host = qemu_get_ram_ptr(addr);
449 else
450 host = host_from_stream_offset(f, addr, flags);
452 qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
454 if (qemu_file_has_error(f)) {
455 return -EIO;
457 } while (!(flags & RAM_SAVE_FLAG_EOS));
459 return 0;
462 void qemu_service_io(void)
464 qemu_notify_event();
467 #ifdef HAS_AUDIO
468 struct soundhw {
469 const char *name;
470 const char *descr;
471 int enabled;
472 int isa;
473 union {
474 int (*init_isa) (qemu_irq *pic);
475 int (*init_pci) (PCIBus *bus);
476 } init;
479 static struct soundhw soundhw[] = {
480 #ifdef HAS_AUDIO_CHOICE
481 #if defined(TARGET_I386) || defined(TARGET_MIPS)
483 "pcspk",
484 "PC speaker",
487 { .init_isa = pcspk_audio_init }
489 #endif
491 #ifdef CONFIG_SB16
493 "sb16",
494 "Creative Sound Blaster 16",
497 { .init_isa = SB16_init }
499 #endif
501 #ifdef CONFIG_CS4231A
503 "cs4231a",
504 "CS4231A",
507 { .init_isa = cs4231a_init }
509 #endif
511 #ifdef CONFIG_ADLIB
513 "adlib",
514 #ifdef HAS_YMF262
515 "Yamaha YMF262 (OPL3)",
516 #else
517 "Yamaha YM3812 (OPL2)",
518 #endif
521 { .init_isa = Adlib_init }
523 #endif
525 #ifdef CONFIG_GUS
527 "gus",
528 "Gravis Ultrasound GF1",
531 { .init_isa = GUS_init }
533 #endif
535 #ifdef CONFIG_AC97
537 "ac97",
538 "Intel 82801AA AC97 Audio",
541 { .init_pci = ac97_init }
543 #endif
545 #ifdef CONFIG_ES1370
547 "es1370",
548 "ENSONIQ AudioPCI ES1370",
551 { .init_pci = es1370_init }
553 #endif
555 #ifdef CONFIG_HDA
557 "hda",
558 "Intel HD Audio",
561 { .init_pci = intel_hda_and_codec_init }
563 #endif
565 #endif /* HAS_AUDIO_CHOICE */
567 { NULL, NULL, 0, 0, { NULL } }
570 void select_soundhw(const char *optarg)
572 struct soundhw *c;
574 if (*optarg == '?') {
575 show_valid_cards:
577 printf("Valid sound card names (comma separated):\n");
578 for (c = soundhw; c->name; ++c) {
579 printf ("%-11s %s\n", c->name, c->descr);
581 printf("\n-soundhw all will enable all of the above\n");
582 exit(*optarg != '?');
584 else {
585 size_t l;
586 const char *p;
587 char *e;
588 int bad_card = 0;
590 if (!strcmp(optarg, "all")) {
591 for (c = soundhw; c->name; ++c) {
592 c->enabled = 1;
594 return;
597 p = optarg;
598 while (*p) {
599 e = strchr(p, ',');
600 l = !e ? strlen(p) : (size_t) (e - p);
602 for (c = soundhw; c->name; ++c) {
603 if (!strncmp(c->name, p, l) && !c->name[l]) {
604 c->enabled = 1;
605 break;
609 if (!c->name) {
610 if (l > 80) {
611 fprintf(stderr,
612 "Unknown sound card name (too big to show)\n");
614 else {
615 fprintf(stderr, "Unknown sound card name `%.*s'\n",
616 (int) l, p);
618 bad_card = 1;
620 p += l + (e != NULL);
623 if (bad_card) {
624 goto show_valid_cards;
629 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
631 struct soundhw *c;
633 for (c = soundhw; c->name; ++c) {
634 if (c->enabled) {
635 if (c->isa) {
636 if (isa_pic) {
637 c->init.init_isa(isa_pic);
639 } else {
640 if (pci_bus) {
641 c->init.init_pci(pci_bus);
647 #else
648 void select_soundhw(const char *optarg)
651 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
654 #endif
656 int qemu_uuid_parse(const char *str, uint8_t *uuid)
658 int ret;
660 if (strlen(str) != 36) {
661 return -1;
664 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
665 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
666 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
667 &uuid[15]);
669 if (ret != 16) {
670 return -1;
672 #ifdef TARGET_I386
673 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
674 #endif
675 return 0;
678 void do_acpitable_option(const char *optarg)
680 #ifdef TARGET_I386
681 if (acpi_table_add(optarg) < 0) {
682 fprintf(stderr, "Wrong acpi table provided\n");
683 exit(1);
685 #endif
688 void do_smbios_option(const char *optarg)
690 #ifdef TARGET_I386
691 if (smbios_entry_add(optarg) < 0) {
692 fprintf(stderr, "Wrong smbios provided\n");
693 exit(1);
695 #endif
698 void cpudef_init(void)
700 #if defined(cpudef_setup)
701 cpudef_setup(); /* parse cpu definitions in target config file */
702 #endif
705 int audio_available(void)
707 #ifdef HAS_AUDIO
708 return 1;
709 #else
710 return 0;
711 #endif
714 int tcg_available(void)
716 return 1;
719 int kvm_available(void)
721 #ifdef CONFIG_KVM
722 return 1;
723 #else
724 return 0;
725 #endif
728 int xen_available(void)
730 #ifdef CONFIG_XEN
731 return 1;
732 #else
733 return 0;
734 #endif