leon3: convert to memory API
[qemu.git] / arch_init.c
blob567ab3281cc17ac925e77c57710ca5efbf2d1771
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 #endif
83 const uint32_t arch_type = QEMU_ARCH;
85 /***********************************************************/
86 /* ram save/restore */
88 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
89 #define RAM_SAVE_FLAG_COMPRESS 0x02
90 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
91 #define RAM_SAVE_FLAG_PAGE 0x08
92 #define RAM_SAVE_FLAG_EOS 0x10
93 #define RAM_SAVE_FLAG_CONTINUE 0x20
95 static int is_dup_page(uint8_t *page, uint8_t ch)
97 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
98 uint32_t *array = (uint32_t *)page;
99 int i;
101 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
102 if (array[i] != val) {
103 return 0;
107 return 1;
110 static RAMBlock *last_block;
111 static ram_addr_t last_offset;
113 static int ram_save_block(QEMUFile *f)
115 RAMBlock *block = last_block;
116 ram_addr_t offset = last_offset;
117 ram_addr_t current_addr;
118 int bytes_sent = 0;
120 if (!block)
121 block = QLIST_FIRST(&ram_list.blocks);
123 current_addr = block->offset + offset;
125 do {
126 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
127 uint8_t *p;
128 int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
130 cpu_physical_memory_reset_dirty(current_addr,
131 current_addr + TARGET_PAGE_SIZE,
132 MIGRATION_DIRTY_FLAG);
134 p = block->host + offset;
136 if (is_dup_page(p, *p)) {
137 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
138 if (!cont) {
139 qemu_put_byte(f, strlen(block->idstr));
140 qemu_put_buffer(f, (uint8_t *)block->idstr,
141 strlen(block->idstr));
143 qemu_put_byte(f, *p);
144 bytes_sent = 1;
145 } else {
146 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
147 if (!cont) {
148 qemu_put_byte(f, strlen(block->idstr));
149 qemu_put_buffer(f, (uint8_t *)block->idstr,
150 strlen(block->idstr));
152 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
153 bytes_sent = TARGET_PAGE_SIZE;
156 break;
159 offset += TARGET_PAGE_SIZE;
160 if (offset >= block->length) {
161 offset = 0;
162 block = QLIST_NEXT(block, next);
163 if (!block)
164 block = QLIST_FIRST(&ram_list.blocks);
167 current_addr = block->offset + offset;
169 } while (current_addr != last_block->offset + last_offset);
171 last_block = block;
172 last_offset = offset;
174 return bytes_sent;
177 static uint64_t bytes_transferred;
179 static ram_addr_t ram_save_remaining(void)
181 RAMBlock *block;
182 ram_addr_t count = 0;
184 QLIST_FOREACH(block, &ram_list.blocks, next) {
185 ram_addr_t addr;
186 for (addr = block->offset; addr < block->offset + block->length;
187 addr += TARGET_PAGE_SIZE) {
188 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
189 count++;
194 return count;
197 uint64_t ram_bytes_remaining(void)
199 return ram_save_remaining() * TARGET_PAGE_SIZE;
202 uint64_t ram_bytes_transferred(void)
204 return bytes_transferred;
207 uint64_t ram_bytes_total(void)
209 RAMBlock *block;
210 uint64_t total = 0;
212 QLIST_FOREACH(block, &ram_list.blocks, next)
213 total += block->length;
215 return total;
218 static int block_compar(const void *a, const void *b)
220 RAMBlock * const *ablock = a;
221 RAMBlock * const *bblock = b;
222 if ((*ablock)->offset < (*bblock)->offset) {
223 return -1;
224 } else if ((*ablock)->offset > (*bblock)->offset) {
225 return 1;
227 return 0;
230 static void sort_ram_list(void)
232 RAMBlock *block, *nblock, **blocks;
233 int n;
234 n = 0;
235 QLIST_FOREACH(block, &ram_list.blocks, next) {
236 ++n;
238 blocks = g_malloc(n * sizeof *blocks);
239 n = 0;
240 QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
241 blocks[n++] = block;
242 QLIST_REMOVE(block, next);
244 qsort(blocks, n, sizeof *blocks, block_compar);
245 while (--n >= 0) {
246 QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
248 g_free(blocks);
251 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
253 ram_addr_t addr;
254 uint64_t bytes_transferred_last;
255 double bwidth = 0;
256 uint64_t expected_time = 0;
258 if (stage < 0) {
259 cpu_physical_memory_set_dirty_tracking(0);
260 return 0;
263 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
264 qemu_file_set_error(f);
265 return 0;
268 if (stage == 1) {
269 RAMBlock *block;
270 bytes_transferred = 0;
271 last_block = NULL;
272 last_offset = 0;
273 sort_ram_list();
275 /* Make sure all dirty bits are set */
276 QLIST_FOREACH(block, &ram_list.blocks, next) {
277 for (addr = block->offset; addr < block->offset + block->length;
278 addr += TARGET_PAGE_SIZE) {
279 if (!cpu_physical_memory_get_dirty(addr,
280 MIGRATION_DIRTY_FLAG)) {
281 cpu_physical_memory_set_dirty(addr);
286 /* Enable dirty memory tracking */
287 cpu_physical_memory_set_dirty_tracking(1);
289 qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
291 QLIST_FOREACH(block, &ram_list.blocks, next) {
292 qemu_put_byte(f, strlen(block->idstr));
293 qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
294 qemu_put_be64(f, block->length);
298 bytes_transferred_last = bytes_transferred;
299 bwidth = qemu_get_clock_ns(rt_clock);
301 while (!qemu_file_rate_limit(f)) {
302 int bytes_sent;
304 bytes_sent = ram_save_block(f);
305 bytes_transferred += bytes_sent;
306 if (bytes_sent == 0) { /* no more blocks */
307 break;
311 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
312 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
314 /* if we haven't transferred anything this round, force expected_time to a
315 * a very high value, but without crashing */
316 if (bwidth == 0) {
317 bwidth = 0.000001;
320 /* try transferring iterative blocks of memory */
321 if (stage == 3) {
322 int bytes_sent;
324 /* flush all remaining blocks regardless of rate limiting */
325 while ((bytes_sent = ram_save_block(f)) != 0) {
326 bytes_transferred += bytes_sent;
328 cpu_physical_memory_set_dirty_tracking(0);
331 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
333 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
335 return (stage == 2) && (expected_time <= migrate_max_downtime());
338 static inline void *host_from_stream_offset(QEMUFile *f,
339 ram_addr_t offset,
340 int flags)
342 static RAMBlock *block = NULL;
343 char id[256];
344 uint8_t len;
346 if (flags & RAM_SAVE_FLAG_CONTINUE) {
347 if (!block) {
348 fprintf(stderr, "Ack, bad migration stream!\n");
349 return NULL;
352 return block->host + offset;
355 len = qemu_get_byte(f);
356 qemu_get_buffer(f, (uint8_t *)id, len);
357 id[len] = 0;
359 QLIST_FOREACH(block, &ram_list.blocks, next) {
360 if (!strncmp(id, block->idstr, sizeof(id)))
361 return block->host + offset;
364 fprintf(stderr, "Can't find block %s!\n", id);
365 return NULL;
368 int ram_load(QEMUFile *f, void *opaque, int version_id)
370 ram_addr_t addr;
371 int flags;
373 if (version_id < 3 || version_id > 4) {
374 return -EINVAL;
377 do {
378 addr = qemu_get_be64(f);
380 flags = addr & ~TARGET_PAGE_MASK;
381 addr &= TARGET_PAGE_MASK;
383 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
384 if (version_id == 3) {
385 if (addr != ram_bytes_total()) {
386 return -EINVAL;
388 } else {
389 /* Synchronize RAM block list */
390 char id[256];
391 ram_addr_t length;
392 ram_addr_t total_ram_bytes = addr;
394 while (total_ram_bytes) {
395 RAMBlock *block;
396 uint8_t len;
398 len = qemu_get_byte(f);
399 qemu_get_buffer(f, (uint8_t *)id, len);
400 id[len] = 0;
401 length = qemu_get_be64(f);
403 QLIST_FOREACH(block, &ram_list.blocks, next) {
404 if (!strncmp(id, block->idstr, sizeof(id))) {
405 if (block->length != length)
406 return -EINVAL;
407 break;
411 if (!block) {
412 fprintf(stderr, "Unknown ramblock \"%s\", cannot "
413 "accept migration\n", id);
414 return -EINVAL;
417 total_ram_bytes -= length;
422 if (flags & RAM_SAVE_FLAG_COMPRESS) {
423 void *host;
424 uint8_t ch;
426 if (version_id == 3)
427 host = qemu_get_ram_ptr(addr);
428 else
429 host = host_from_stream_offset(f, addr, flags);
430 if (!host) {
431 return -EINVAL;
434 ch = qemu_get_byte(f);
435 memset(host, ch, TARGET_PAGE_SIZE);
436 #ifndef _WIN32
437 if (ch == 0 &&
438 (!kvm_enabled() || kvm_has_sync_mmu())) {
439 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
441 #endif
442 } else if (flags & RAM_SAVE_FLAG_PAGE) {
443 void *host;
445 if (version_id == 3)
446 host = qemu_get_ram_ptr(addr);
447 else
448 host = host_from_stream_offset(f, addr, flags);
450 qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
452 if (qemu_file_has_error(f)) {
453 return -EIO;
455 } while (!(flags & RAM_SAVE_FLAG_EOS));
457 return 0;
460 void qemu_service_io(void)
462 qemu_notify_event();
465 #ifdef HAS_AUDIO
466 struct soundhw {
467 const char *name;
468 const char *descr;
469 int enabled;
470 int isa;
471 union {
472 int (*init_isa) (qemu_irq *pic);
473 int (*init_pci) (PCIBus *bus);
474 } init;
477 static struct soundhw soundhw[] = {
478 #ifdef HAS_AUDIO_CHOICE
479 #if defined(TARGET_I386) || defined(TARGET_MIPS)
481 "pcspk",
482 "PC speaker",
485 { .init_isa = pcspk_audio_init }
487 #endif
489 #ifdef CONFIG_SB16
491 "sb16",
492 "Creative Sound Blaster 16",
495 { .init_isa = SB16_init }
497 #endif
499 #ifdef CONFIG_CS4231A
501 "cs4231a",
502 "CS4231A",
505 { .init_isa = cs4231a_init }
507 #endif
509 #ifdef CONFIG_ADLIB
511 "adlib",
512 #ifdef HAS_YMF262
513 "Yamaha YMF262 (OPL3)",
514 #else
515 "Yamaha YM3812 (OPL2)",
516 #endif
519 { .init_isa = Adlib_init }
521 #endif
523 #ifdef CONFIG_GUS
525 "gus",
526 "Gravis Ultrasound GF1",
529 { .init_isa = GUS_init }
531 #endif
533 #ifdef CONFIG_AC97
535 "ac97",
536 "Intel 82801AA AC97 Audio",
539 { .init_pci = ac97_init }
541 #endif
543 #ifdef CONFIG_ES1370
545 "es1370",
546 "ENSONIQ AudioPCI ES1370",
549 { .init_pci = es1370_init }
551 #endif
553 #ifdef CONFIG_HDA
555 "hda",
556 "Intel HD Audio",
559 { .init_pci = intel_hda_and_codec_init }
561 #endif
563 #endif /* HAS_AUDIO_CHOICE */
565 { NULL, NULL, 0, 0, { NULL } }
568 void select_soundhw(const char *optarg)
570 struct soundhw *c;
572 if (*optarg == '?') {
573 show_valid_cards:
575 printf("Valid sound card names (comma separated):\n");
576 for (c = soundhw; c->name; ++c) {
577 printf ("%-11s %s\n", c->name, c->descr);
579 printf("\n-soundhw all will enable all of the above\n");
580 exit(*optarg != '?');
582 else {
583 size_t l;
584 const char *p;
585 char *e;
586 int bad_card = 0;
588 if (!strcmp(optarg, "all")) {
589 for (c = soundhw; c->name; ++c) {
590 c->enabled = 1;
592 return;
595 p = optarg;
596 while (*p) {
597 e = strchr(p, ',');
598 l = !e ? strlen(p) : (size_t) (e - p);
600 for (c = soundhw; c->name; ++c) {
601 if (!strncmp(c->name, p, l) && !c->name[l]) {
602 c->enabled = 1;
603 break;
607 if (!c->name) {
608 if (l > 80) {
609 fprintf(stderr,
610 "Unknown sound card name (too big to show)\n");
612 else {
613 fprintf(stderr, "Unknown sound card name `%.*s'\n",
614 (int) l, p);
616 bad_card = 1;
618 p += l + (e != NULL);
621 if (bad_card) {
622 goto show_valid_cards;
627 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
629 struct soundhw *c;
631 for (c = soundhw; c->name; ++c) {
632 if (c->enabled) {
633 if (c->isa) {
634 if (isa_pic) {
635 c->init.init_isa(isa_pic);
637 } else {
638 if (pci_bus) {
639 c->init.init_pci(pci_bus);
645 #else
646 void select_soundhw(const char *optarg)
649 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
652 #endif
654 int qemu_uuid_parse(const char *str, uint8_t *uuid)
656 int ret;
658 if (strlen(str) != 36) {
659 return -1;
662 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
663 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
664 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
665 &uuid[15]);
667 if (ret != 16) {
668 return -1;
670 #ifdef TARGET_I386
671 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
672 #endif
673 return 0;
676 void do_acpitable_option(const char *optarg)
678 #ifdef TARGET_I386
679 if (acpi_table_add(optarg) < 0) {
680 fprintf(stderr, "Wrong acpi table provided\n");
681 exit(1);
683 #endif
686 void do_smbios_option(const char *optarg)
688 #ifdef TARGET_I386
689 if (smbios_entry_add(optarg) < 0) {
690 fprintf(stderr, "Wrong smbios provided\n");
691 exit(1);
693 #endif
696 void cpudef_init(void)
698 #if defined(cpudef_setup)
699 cpudef_setup(); /* parse cpu definitions in target config file */
700 #endif
703 int audio_available(void)
705 #ifdef HAS_AUDIO
706 return 1;
707 #else
708 return 0;
709 #endif
712 int tcg_available(void)
714 return 1;
717 int kvm_available(void)
719 #ifdef CONFIG_KVM
720 return 1;
721 #else
722 return 0;
723 #endif
726 int xen_available(void)
728 #ifdef CONFIG_XEN
729 return 1;
730 #else
731 return 0;
732 #endif